EP2353745A2 - Tool and method for producing can bodies - Google Patents
Tool and method for producing can bodies Download PDFInfo
- Publication number
- EP2353745A2 EP2353745A2 EP11150226A EP11150226A EP2353745A2 EP 2353745 A2 EP2353745 A2 EP 2353745A2 EP 11150226 A EP11150226 A EP 11150226A EP 11150226 A EP11150226 A EP 11150226A EP 2353745 A2 EP2353745 A2 EP 2353745A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- drawing punch
- tool
- punch
- cup
- tool according
- 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
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Classifications
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
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- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/28—Deep-drawing of cylindrical articles using consecutive dies
Definitions
- a sheet-like sheet metal blank which is formed in several stages to the desired can body.
- This forming process comprises several forming stages, which are usually carried out in succession. Only in this way can the desired high degrees of deformation be achieved.
- WO 2008/067522 A1 a manufacturing line for the production of beverage cans from circular disc-shaped sheet metal blanks known. These are first transferred in appropriate forming machines in a cup shape. These cup-shaped intermediate moldings are then passed into further forming machines, which produce the desired can body in a so-called ironing-drawing process from the cup-shaped intermediate moldings.
- the WO 2009/052608 A1 suggests the transformation of a planar board to the can body in two stages in one perform single tool. This comprises two counter-acting drawing dies, which are arranged coaxially with each other. The result is a Stülp-drawing process, which places high demands on the formability of the material used.
- the tool according to the invention combines the transformation of a planar board into a cup and the forming of the cup into a can body in a two-stage operation in a tool. This eliminates the one hand, the need to hold for the Napfher too and for subsequent to the Napfher too ironing-pulling process separate special machines. In addition, because the tool according to the invention and the method according to the invention do not require an upthrusting process, a simple and reliable production process is obtained.
- the invention can be implemented particularly advantageously in the production of can bodies from materials which tend to work hardening.
- the Napfher too and the subsequent ironing-drawing process for producing the can body follow each other so closely in time that the deformation-induced heating of the cup for the post-stretching ironing-drawing process is at least largely retained.
- Hardening, as they could be done during transport on the way from a Napfautomaten to Abstreckautomaten, are thus excluded or minimized. This contributes to the creation of a robust and reliable manufacturing process.
- the inventive concept also allows a clear separation between moving and stationary tool parts.
- the moving drawing dies are both associated with a moving tool part, for example an upper tool.
- the corresponding countershapes and counterplant surfaces are assigned in the stationary tool part, for example a lower tool.
- the displacement or force control of the drawing punch can be made as required by components of the press, which reduces the tool costs. If necessary, can be dispensed with expensive possibly controllable springs, hydraulic devices, pneumatic devices, actuators and the like in the tool.
- These components can be associated with the inventive concept of the press and thus realized press side. Even if a more extensive tool park for different doses is kept, this is no special effort.
- FIG. 1 a forming machine 1 is illustrated by a tool 2 is added for the production of can bodies.
- the tool has a stationary in the forming machine 1 arranged lower tool part 3 and on this to and away from this linearly movable upper tool part 4.
- the tool parts 3, 4 can be arranged vertically above one another, but if necessary also in a different spatial orientation, for example next to one another or one behind the other.
- the direction of movement of the upper tool part 4 is vertical.
- the direction of movement can also have any other suitable spatial orientation.
- the upper tool part 4 is associated with a drive device 5, which moves the individual components of the upper tool part 4 in a suitable manner or applied with force.
- FIG. 4 illustrates the tool 2 in more detail.
- the upper tool part 4 comprises a plurality of concentric to a central axis 6 arranged parts, namely a first drawing punch 7, a second drawing punch 8 and a hold-down ring 9.
- the first drawing punch 7 is tubular. At its lower end face it can be provided, if necessary, with a pressure ring 10, which is particularly wear-resistant and tuned in its sliding properties on the material to be processed.
- the first drawing punch 7 is connected to that part of the drive device 5 which is suitable for moving the drawing punch 7 in a position-controlled manner in the direction of the central axis 6. Further, the drive device 5 is preferably designed so that it controls the operation of the drawing punch 7 from a position-controlled operation on a force-controlled operation can switch.
- the first die 7 is the hold-down ring 9 associated with the corresponding biasing means, such as a spring assembly 11 and pressure pins 12, 13, 14, 15 (see FIG. 1 ) is connected to the first punch 7 to define a defined, in FIG. 2 To generate indicated by arrows 16 force.
- biasing means such as a spring assembly 11 and pressure pins 12, 13, 14, 15 (see FIG. 1 ) is connected to the first punch 7 to define a defined, in FIG. 2 To generate indicated by arrows 16 force.
- the second drawing punch 8 which is also associated with the upper tool 4, is arranged movably in an inner channel of the first drawing punch 7 along the central axis 6. Its lower end face 17 preferably corresponds to the desired inner shape of the can body to be produced.
- the lower tool 3 includes several parts that are in FIG. 2 for the sake of simplicity, are shown as a single part.
- the lower tool 3 has, on the side facing the upper tool 4, a preferably flat surface 17 for supporting a printed circuit board 18 preferably designed as a round disk.
- the surface 17 forms the counter bearing surface for the hold-down.
- a stepped passage 19 is formed in the lower tool 3.
- the channel 19 initially has a diameter which is greater than the outer diameter of the first drawing punch 7.
- the passage 19 passes over a diameter which is smaller than the outer diameter of the first drawing punch 7, but larger than the outer diameter of the second drawing punch 8. If the drawing punch 7 moves into the through-channel 19, it defines with the channel wall an annular gap, the width of which results from the following functional description. Moves the second drawing punch 8 in the narrower, lower Part of the passage channel 9 a, he defined with the channel wall turn an annular gap whose width also results from the following functional description. The same applies to the distance between the step 20 and the surface 17.
- the upper tool 4 is moved to the lower tool 3.
- the hold-down ring 9 sets on the board 18 and pushes them with controlled force against the counter-contact surface 21.
- the counter-system 21 is that part of the surface 17 which surrounds the passage 19 directly.
- FIG. 4 illustrates the tool 3 after completion of the cup-pulling operation.
- the hold-down ring 9 is now inoperative.
- the first drawing punch 7 has moved the resulting cup so far into the passage 19 in that the bottom 24 arrives at the stage 20.
- the pressure ring 10 presses from the inside to the bottom 24 and thus against the stage 20.
- the first drawing punch 7 changes from its drag function to hold-down function.
- the corresponding drive of the drawing punch 7 can be designed so that it can assume different operating modes.
- the first drawing punch 7 is moved away during the drawing process (eg position-controlled). This can be done by a suitable, dependent on a drive gear or by position-controlled drives.
- the drive of the drawing punch 7 switches, for example, to force-controlled (eg force-controlled) operation.
- force-controlled eg force-controlled
- suitable spring means if necessary, be provided in their power controllable or switchable spring means.
- force sensing and force control can be provided if suitable drives are provided.
- the pestle in question is moved by a drive (e.g., servo drive) according to a predetermined path-time curve.
- a drive e.g., servo drive
- force-controlled operation the plunger is acted upon by a force that is brought into conformity with a predetermined force or a predetermined force curve.
- the second drawing punch 8 moves in the same direction as before the now resting drawing punch 7 forward (ie down here).
- the movement of the second drawing punch 8 may also have started earlier, but the second drawing punch 8 does not come into contact with the bottom 24 during the drawing operation of the bowl.
- the FIG. 5 is shown. This affects the kraftbeaufschlagte first drawing punch as hold-down, which controls the material of the cup controlled in the annular gap between the second punch 8 and the narrower part of the passage channel 19 can slide. In this second drawing process, the desired can body is produced.
- the wall thickness of the can body is reduced and adjusted to a desired level.
- the direction of the working stroke of the first drawing punch 7 coincides with the direction of the working stroke of the second drawing punch 8.
- the drawing punches 7 and 8 are thus moved in the same direction.
- the first and the second drawing process thus also take place in the same direction, ie in one and the same tool, one after the other and in the same direction.
- draw rings 25, 26 which are arranged one above the other in an axial distance in the wall of the passage 19.
- the annular gap formed between the drawing rings 25 and 26 and the drawing punch 8 determines the wall thickness of the can body to be formed.
- the draw rings 25, 26 calibrate the outer diameter of the can body. The process is called stripping.
- the can body production takes place in two stages.
- the first drawing punch 7 is active, while the second drawing punch 8 is inactive, so does not act on the material of the can body.
- the first drawing punch 7 acts as a hold-down while the second drawing punch 8 is active and causes the drawing and stripping.
- the material of the board 18 is zigzagged. From the horizontal orientation, which is predetermined by the surface 17, it first passes in parallel in the vertical direction to the central axis 6 to form the cylinder wall. From this, the material flows quasi z-shaped, ie in a right-left bend over the step 20 to form the can wall. Umstülpvor réelle in which the wall material would be bent twice as the diameter decreases in the same direction, are avoided.
- a special tool 2 is created, which combines both the Napfher too well as the transformation of the cup to the can body in a tool 3. It is assumed that preferably round plates 18, which are first drawn to a well in a Abstreckprocess of the tool 2 in a first step to wells and then in a second drawing process, the washerzug- and sliding-drawing-ironing, are stretched to can bodies. The draw directions are the same in both work stages. This results in simple, robust tools and a simple, robust manufacturing process.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Zur Herstellung von Druckbehälterdosen oder Getränkedosen oder ähnlichen Metallhohlkörpern wird üblicherweise von einem flächenhaften Blechrohling ausgegangen, der in mehreren Stufen zu dem gewünschten Dosenkörper umgeformt wird. Dieser Umformvorgang umfasst mehrere Umformstufen, die üblicherweise hintereinander ausgeführt werden. Nur so lassen sich die gewünschten hohen Umformgrade erzielen.For the production of pressure cans or beverage cans or similar metal hollow bodies is usually assumed that a sheet-like sheet metal blank, which is formed in several stages to the desired can body. This forming process comprises several forming stages, which are usually carried out in succession. Only in this way can the desired high degrees of deformation be achieved.
Beispielsweise ist aus der
Für diese Art der Fertigung sind aufwendige Spezialautoamten erforderlich.For this type of production complex special cars are required.
Außerdem sind Spezialautomaten bekannt, die als Cupper bezeichnet werden und Cup, also napfförmige Zwischenrohlinge ausgehend von einem Blechband erzeugen. Beim Ausstanzen der von kreisförmigen Abschnitten zur Erzeugung von Cups entsteht Schrott, der entsorgt werden muss. Dies stellt für den Betreiber ein Zusatzproblem dar.In addition, special machines are known, which are referred to as Cupper Cup and, so produce cup-shaped intermediate blanks starting from a metal strip. When punching the circular sections for the production of cups creates scrap, which must be disposed of. This represents an additional problem for the operator.
Die
Es ist Aufgabe der Erfindung, eine Vorrichtung und ein Verfahren zum effizienten und verlässlichen Herstellen von Dosenkörpern zu schaffen.It is an object of the invention to provide an apparatus and a method for the efficient and reliable production of can bodies.
Diese Aufgabe wird mit dem Werkzeug nach Anspruch 1 und dem Verfahren nach Anspruch 10 gelöst.This object is achieved with the tool according to claim 1 and the method according to
Das erfindungsgemäße Werkzeug vereinigt die Umformung einer ebenen Platine zu einem Napf und die Umformung des Napfs zu einem Dosenkörper in einem zweistufigen Arbeitsgang in einem Werkzeug. Damit entfällt einerseits das Erfordernis, für die Napfherstellung und für den sich an die Napfherstellung anschließenden Abstreck-Zieh-Vorgang gesonderte Spezialautomaten vorhalten zu müssen. Weil bei dem erfindungsgemäßen Werkzeug und bei dem erfindungsgemäßen Verfahren auf einen Stülpziehvorgang verzichtet wird, wird zudem ein einfacher und verlässlicher Fertigungsprozess erhalten.The tool according to the invention combines the transformation of a planar board into a cup and the forming of the cup into a can body in a two-stage operation in a tool. This eliminates the one hand, the need to hold for the Napfherstellung and for subsequent to the Napfherstellung ironing-pulling process separate special machines. In addition, because the tool according to the invention and the method according to the invention do not require an upthrusting process, a simple and reliable production process is obtained.
Besonders vorteilhaft lässt sich die Erfindung bei der Herstellung von Dosenkörpern aus Materialien umsetzen, die zur Kaltverfestigung neigen. Die Napfherstellung und der sich anschließende Abstreck-Zieh-Vorgang zur Herstellung des Dosenkörpers folgen zeitlich so dicht aufeinander, dass die umformungsbedingte Erwärmung des Napfs für den nachstreckenden Abstreck-Zieh-Vorgang zumindest größtenteils erhalten bleibt. Kaltverfestigungserscheinungen, wie sie beim Transport auf den Weg von einem Napfautomaten zum Abstreckautomaten erfolgen könnten, werden somit ausgeschlossen oder minimiert. Dies trägt zur Schaffung eines robusten und verlässlichen Fertigungsverfahrens bei.The invention can be implemented particularly advantageously in the production of can bodies from materials which tend to work hardening. The Napfherstellung and the subsequent ironing-drawing process for producing the can body follow each other so closely in time that the deformation-induced heating of the cup for the post-stretching ironing-drawing process is at least largely retained. Hardening, as they could be done during transport on the way from a Napfautomaten to Abstreckautomaten, are thus excluded or minimized. This contributes to the creation of a robust and reliable manufacturing process.
Das erfindungsgemäße Konzept gestattet außerdem eine klare Trennung zwischen bewegten und unbewegten Werkzeugteilen. Die bewegten Ziehstempel sind beide einem bewegten Werkzeugteil, beispielsweise einem Oberwerkzeug zugeordnet. Die entsprechenden Gegenformen und Gegenanlagenflächen sind im ruhenden Werkzeugteil, beispielsweise einem Unterwerkzeug zugeordnet. Auf diese Weise kann unter Einbeziehung eines geeigneten Pressenkonzepts die jeweilige Positions- und/oder Kraftsteuerung jedes Ziehstempels optimal eingestellt werden. Die Weg- bzw. Kraftsteuerung der Ziehstempel kann bedarfsweise von Komponenten der Presse vorgenommen werden, was die Werkzeugkosten senkt. Bedarfsweise kann nämlich auf aufwendige womöglich steuerbare Federn, Hydraulikvorrichtungen, Pneumatikvorrichtungen, Stellantriebe und dergleichen im Werkzeug verzichtet werden. Diese Komponenten können bei dem erfindungsgemäßen Konzept der Presse zugeordnet und somit pressenseitig realisiert werden. Selbst wenn ein umfangreicherer Werkzeugpark für verschiedenste Dosen vorgehalten wird, stellt dies keinen besonderen Aufwand dar.The inventive concept also allows a clear separation between moving and stationary tool parts. The moving drawing dies are both associated with a moving tool part, for example an upper tool. The corresponding countershapes and counterplant surfaces are assigned in the stationary tool part, for example a lower tool. In this way, the respective position and / or force control of each drawing punch can be optimally adjusted by including a suitable press concept. The displacement or force control of the drawing punch can be made as required by components of the press, which reduces the tool costs. If necessary, can be dispensed with expensive possibly controllable springs, hydraulic devices, pneumatic devices, actuators and the like in the tool. These components can be associated with the inventive concept of the press and thus realized press side. Even if a more extensive tool park for different doses is kept, this is no special effort.
Weitere Einzelheiten von Ausführungsformen der Erfindung sind Gegenstand der Zeichnung, der zugehörigen Beschreibung oder von Ansprüchen. Es zeigen:
-
Figur 1 eine Maschine zur Dosenkörperherstellung mit einem erfindungsgemäßen Werkzeug in aufs äußerste schematisierter Darstellung. -
Figur 2 das Werkzeug nachFigur 1 in sehr schematisierter Vertikalschnittdarstellung, nach Einlegen einer Platine, -
das Werkzeug nachFigur 3Figur 2 , beim Tief-Zieh-Vorgang zur Herstellung des Napfs, -
das Werkzeug nachFigur 4 , mit fertig gestelltem Napf,Figur 3 -
das Werkzeug nachFigur 5Figur 2 bis 4 , beim Abstreck-Gleitziehen.
-
FIG. 1 a machine for can body production with a tool according to the invention in extremely schematisierter representation. -
FIG. 2 the tool afterFIG. 1 in a very schematic vertical section, after inserting a circuit board, -
FIG. 3 the tool afterFIG. 2 in the deep-drawing process for making the bowl, -
FIG. 4 the tool afterFIG. 3 , with finished bowl, -
FIG. 5 the tool afterFIGS. 2 to 4 in the ironing strike.
In
Dem oberen Werkzeugteil 4 ist eine Antriebseinrichtung 5 zugeordnet, die die einzelnen Komponenten des oberen Werkzeugteils 4 in geeigneter Weise bewegt oder mit Kraft beaufschlagt.The
Der erste Ziehstempel 7 ist mit jenem Teil der Antriebseinrichtung 5 verbunden, der geeignet ist, den Ziehstempel 7 positionskontrolliert in Richtung der Mittelachse 6 zu bewegen. Weiter ist die Antriebseinrichtung 5 vorzugsweise so ausgebildet, dass sie die Betätigung des Ziehstempels 7 von einer positionsgeregelten Arbeitsweise auf eine kraftgeregelten Arbeitsweise umschalten kann.The
Dem ersten Ziehstempel 7 ist der Niederhalterring 9 zugeordnet, der über entsprechende Vorspannmittel, beispielsweise eine Federanordnung 11 und Druckstifte 12, 13, 14, 15 (siehe
Der ebenfalls zu dem Oberwerkzeug 4 gehörige zweite Ziehstempel 8 ist in einem Innenkanal des ersten Ziehstempels 7 längs der Mittelachse 6 beweglich angeordnet. Seine untere Stirnfläche 17 entspricht vorzugsweise der gewünschten Innenform des zu erzeugenden Dosenkörpers.The
Zu dem Unterwerkzeug 3 gehören mehrere Teile, die in
Konzentrisch zu der Mittelachse 6 ist in dem Unterwerkzeug 3 ein gestufter Durchgangskanal 19 ausgebildet. Ausgehend von der Fläche 17 weist der Kanal 19 zunächst einen Durchmesser auf, der größer ist als der Außendurchmesser des ersten Ziehstempels 7. An einer Stufe 20 geht der Durchgangskanal 19 auf einen Durchmesser über, der geringer ist, als der Außendurchmesser des ersten Ziehstempels 7, aber größer als der Außendurchmesser des zweiten Ziehstempels 8. Fährt der Ziehstempel 7 in den Durchgangskanal 19 ein, definiert er mit der Kanalwand einen Ringspalt, dessen Weite aus der nachfolgenden Funktionsbeschreibung hervorgeht. Fährt der zweite Ziehstempel 8 in den engeren, unteren Teil des Durchgangskanals 9 ein, definiert er mit der Kanalwand wiederum einen Ringspalt dessen Weite sich ebenfalls aus der nachfolgenden Funktionsbeschreibung ergibt. Gleiches gilt für den abstand zwischen der Stufe 20 und der Fläche 17.Concentric with the central axis 6, a
Mit dem insoweit beschriebenen Werkzeug 2 werden Dosenkörper wie folgt hergestellt:With the tool 2 described so far, can bodies are produced as follows:
Zur Herstellung eines Dosenkörpers wird zunächst die Platine 18, wie in
Bei weiterer Abwärtsbewegung des ersten Ziehstempels 7 setzt dieser mit seinem Druckring 10 auf der Platine 18 auf und zieht diese in einem Tiefziehvorgang in den Durchgangskanal 19 hinein. Dieser Vorgang des Ziehens des Napfes ist in
In positionsgeregeltem Betrieb wird der betreffende Stößel durch einen Antrieb (z.B. Servoantrieb) gemäß einer vorgegebenen Weg-Zeit-Kurve bewegt. In kraftgeregeltem Betrieb wird der Stößel mit einer Kraft beaufschlagt, die mit einer vorgegebenen Kraft oder einem vorgegebenen Kraftverlauf in Übereinstimmung gebracht wird.In position controlled operation, the pestle in question is moved by a drive (e.g., servo drive) according to a predetermined path-time curve. In force-controlled operation, the plunger is acted upon by a force that is brought into conformity with a predetermined force or a predetermined force curve.
Spätestens wenn der erste Ziehstempel 7 und der Boden 24 an der Stufe 20 angekommen sind, bewegt sich der zweite Ziehstempel 8 in gleicher Richtung wie zuvor der nun ruhende Ziehstempel 7 vorwärts (d.h. hier abwärts). Die Bewegung des zweiten Ziehstempels 8 kann auch früher begonnen haben, wobei jedoch der zweite Ziehstempel 8 während des Ziehvorgangs des Napfs nicht in Berührung mit dem Boden 24 kommt. Nun aber setzt der zweite Ziehstempel 8 auf dem Boden 24 auf und beginnt den Abstreck-Gleit-Ziehvorgang, der in
Beim Weiterziehen und Abstrecken wird der Dosenkörper durch Ziehringe 25, 26 geführt, die in einem axialen Abstand zueinander übereinander in der Wandung des Durchgangs 19 angeordnet sind. Der zwischen den Ziehringen 25 bzw. 26 und dem Ziehstempel 8 gebildete Ringspalt legt die Wandstärke des auszubildenden Dosenkörpers fest. Die Ziehringe 25, 26 kalibrieren den Außendurchmesser des Dosenkörpers. Der Vorgang wird als Abstrecken bezeichnet.When moving on and stretching the can body is guided by draw rings 25, 26 which are arranged one above the other in an axial distance in the wall of the
Die Dosenkörperherstellung erfolgt zweischrittig. In dem ersten Ziehschritt ist der erste Ziehstempel 7 aktiv, während der zweite Ziehstempel 8 inaktiv ist, also nicht auf das Material des Dosenkörpers einwirkt. In einem zweiten Ziehschritt wirkt der erste Ziehstempel 7 als Niederhalter, während der zweite Ziehstempel 8 aktiv ist und das Weiterziehen und Abstrecken bewirkt.The can body production takes place in two stages. In the first drawing step, the
Wie ersichtlicht, wird bei dem zweistufigen Ziehvorgang das Material der Platine 18 im Zickzack geführt. Aus der Horizontalausrichtung, die von der Fläche 17 vorgegeben wird, gelangt es zunächst in die Vertikalrichtung parallel zur Mittelachse 6 um die Zylinderwand zu bilden. Von dieser fließt das Material quasi z-förmig, d.h. in einer Rechts-Links-Biegung über die Stufe 20, um die Dosenwand zu bilden. Umstülpvorgänge, bei denen das Wandmaterial bei kleiner werdendem Durchmesser zweimal in gleicher Richtung gebogen würde, werden vermieden.As can be seen, in the two-stage drawing process, the material of the
Zur Herstellung von Dosenkörper, wie sie zur Herstellung von Aerosoldosen oder Getränkedosen gewünscht werden, wird ein spezielles Werkzeug 2 geschaffen, das sowohl die Napfherstellung wie auch die Umformung des Napfes zum Dosenkörper in einem Werkzeug 3 zusammenfasst. Es wird von vorzugsweise runden Platinen 18 ausgegangen, die in einer Abstreckstufe des Werkzeugs 2 in einem ersten Schritt zunächst zu Näpfen gezogen und dann in einem zweiten Ziehvorgang, dem Weiterzug- und Gleit-Zieh-Abstreckvorgang, zu Dosenkörpern abgestreckt werden. Die Ziehrichtungen sind in beiden Arbeitsstufen gleich. Es ergeben sich einfache robuste Werkzeuge und ein einfacher robuster Herstellungsprozess.For the production of can bodies, as they are desired for the production of aerosol cans or beverage cans, a special tool 2 is created, which combines both the Napfherstellung as well as the transformation of the cup to the can body in a
- 11
- Umformmaschineforming machine
- 22
- WerkzeugTool
- 33
- unterer Werkzeugteillower tool part
- 44
- oberer WerkzeugteilUpper tool part
- 55
- Antriebseinrichtungdriving means
- 66
- Mittelachsecentral axis
- 77
- erster Ziehstempelfirst drawing stamp
- 88th
- zweiter Ziehstempelsecond drawing punch
- 99
- NiederhalterringDown ring
- 1010
- Druckringpressure ring
- 1111
- Federanordnungspring assembly
- 1212
- Druckstifte 13 - 15Push pins 13 - 15
- 1616
- Pfeilarrow
- 1717
- Flächearea
- 1818
- Platinecircuit board
- 1919
- DurchgangskanalThrough channel
- 2020
- Stufestep
- 2121
- GegenanlageflächeAnvil surface
- 2222
- Randedge
- 2323
- Wandwall
- 2424
- Bodenground
- 2525
- oberer Ziehringupper drawing ring
- 2626
- unterer Ziehringlower draw ring
Claims (11)
mit einem ersten Ziehstempel (7) zur Ausbildung eines Napfs aus einer Platine und
mit einem zweiten, zu dem ersten Ziehstempel (7) koaxial angeordneten zweiten Ziehstempel (8) zum Weiterziehen und Abstrecken des Napfs zur Ausbildung des Dosenkörpers,
dadurch gekennzeichnet,
dass der erste Ziehstempel (7) und der zweite Ziehstempel (8) gleichläufig angetrieben sind.Tool (2) for producing can bodies, in particular for pressure vessel cans or beverage cans,
with a first drawing punch (7) for forming a cup from a circuit board and
with a second, to the first drawing punch (7) coaxially arranged second drawing punch (8) for further drawing and stretching of the cup to form the can body,
characterized,
that the first drawing punch (7) and the second drawing punch (8) are driven in the same direction.
mit einem zweiten, zu dem ersten Ziehstempel (7) koaxial angeordneten Ziehstempel (8) der Napf zur Ausbildung des Dosenkörpers in gleicher Ziehrichtung weitergezogen und abgestreckt wird.A method for producing can bodies, in particular for pressure cans or beverage cans, wherein in a tool (2) with a first drawing punch (7) in a given drawing direction from a cut board (17) first pulled a cup and
with a second, to the first drawing punch (7) coaxially arranged drawing punch (8) of the cup for the formation of the can body in the same pulling direction is further drawn and stretched.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010000094 DE102010000094B4 (en) | 2010-01-15 | 2010-01-15 | Tool and method for producing can bodies |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2353745A2 true EP2353745A2 (en) | 2011-08-10 |
EP2353745A3 EP2353745A3 (en) | 2014-05-14 |
EP2353745B1 EP2353745B1 (en) | 2016-04-20 |
Family
ID=44085298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11150226.6A Not-in-force EP2353745B1 (en) | 2010-01-15 | 2011-01-05 | Tool and method for producing can bodies |
Country Status (4)
Country | Link |
---|---|
US (1) | US9016101B2 (en) |
EP (1) | EP2353745B1 (en) |
JP (1) | JP5728236B2 (en) |
DE (1) | DE102010000094B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011056462B4 (en) | 2011-12-15 | 2014-08-28 | Schuler Pressen Gmbh | Method for producing a container body |
DE102012206297A1 (en) | 2012-04-17 | 2013-10-17 | Krones Ag | Method and device for can production and can filling |
CN106513484B (en) * | 2016-12-23 | 2019-01-04 | 佛山市永恒液压机械有限公司 | Filter casing stretching-machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008067522A1 (en) | 2006-11-30 | 2008-06-05 | Rexam Beverage Can Company | Method and apparatus for making two-piece beverage can components |
WO2009052608A1 (en) | 2007-10-22 | 2009-04-30 | Novelis Inc. | Method and apparatus for producing untrimmed container bodies |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US353439A (en) * | 1886-11-30 | Half to archibald w | ||
USRE20009E (en) * | 1936-06-16 | Art of drawing | ||
US1602411A (en) * | 1924-02-09 | 1926-10-12 | Marquette Tool & Mfg Co | Die and blank holding means |
US3855862A (en) * | 1973-04-23 | 1974-12-24 | Continental Can Co | Draw and wall iron process for metal cans |
US4183238A (en) * | 1975-01-24 | 1980-01-15 | Agence Nationale De Valorisation De La Recherche (Anvar) | Double acting precision deep-stamping press |
US4095544A (en) * | 1976-10-26 | 1978-06-20 | National Steel Corporation | Production of corrosion resistant seam-free can bodies from tinplate |
US5357779A (en) * | 1990-09-07 | 1994-10-25 | Coors Brewing Company | Can body maker with magnetic ram bearing and redraw actuator |
JP3758133B2 (en) * | 2000-10-10 | 2006-03-22 | トヨタ自動車株式会社 | Drawing method |
JP5019720B2 (en) * | 2005-05-24 | 2012-09-05 | 小島プレス工業株式会社 | Battery case manufacturing equipment |
TW201125658A (en) * | 2006-12-06 | 2011-08-01 | Ihara Science Corp | Elbow material, and production device and production method thereof |
-
2010
- 2010-01-15 DE DE201010000094 patent/DE102010000094B4/en not_active Expired - Fee Related
-
2011
- 2011-01-05 EP EP11150226.6A patent/EP2353745B1/en not_active Not-in-force
- 2011-01-14 US US12/930,785 patent/US9016101B2/en not_active Expired - Fee Related
- 2011-01-14 JP JP2011005550A patent/JP5728236B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008067522A1 (en) | 2006-11-30 | 2008-06-05 | Rexam Beverage Can Company | Method and apparatus for making two-piece beverage can components |
WO2009052608A1 (en) | 2007-10-22 | 2009-04-30 | Novelis Inc. | Method and apparatus for producing untrimmed container bodies |
Also Published As
Publication number | Publication date |
---|---|
DE102010000094A1 (en) | 2011-07-21 |
EP2353745B1 (en) | 2016-04-20 |
DE102010000094B4 (en) | 2012-12-13 |
JP2011143472A (en) | 2011-07-28 |
JP5728236B2 (en) | 2015-06-03 |
US9016101B2 (en) | 2015-04-28 |
EP2353745A3 (en) | 2014-05-14 |
US20110174045A1 (en) | 2011-07-21 |
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