EP0671229B1 - Machines for producing cans - Google Patents
Machines for producing cans Download PDFInfo
- Publication number
- EP0671229B1 EP0671229B1 EP95101528A EP95101528A EP0671229B1 EP 0671229 B1 EP0671229 B1 EP 0671229B1 EP 95101528 A EP95101528 A EP 95101528A EP 95101528 A EP95101528 A EP 95101528A EP 0671229 B1 EP0671229 B1 EP 0671229B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam roller
- cam
- knee joint
- tool part
- joint connection
- 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.)
- Expired - Lifetime
Links
Images
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
- B21D51/2646—Of particular non cylindrical shape, e.g. conical, rectangular, polygonal, bulged
Definitions
- the invention relates to a machine for producing Can bodies, especially of frames for molded cans, with one Rotary body with several stations, each, especially provided with a spreading tool at least one of one with a control curve in the Engaged cam roller can be actuated Tool part is assigned that is parallel to Rotation axis of the rotating body guided and provided for the application of an axial compressive force is.
- a spreading tool is known from US Pat. No. 5,022,254. where one instead of an elastic stamp several segments distributed over the circumference are used, with the spreading segments - on an axial movement hindered - by an axially moving conical mandrel be moved radially outward.
- cam-controlled drives The main disadvantage of cam-controlled drives is that the cam roller has significant forces must record or transfer, these forces with increasing output (can frames / time unit) or corresponding speed and thereby increasing Mass forces are also increasing. Correspondingly high the wear of the components.
- the invention is therefore based on the object Device of the type mentioned at the beginning improve that the susceptibility to wear of the components even with large output reduced and their Life span will extend accordingly.
- the cam roller with the central joint one Knee joint is connected, being from the outer Joint points of the knee joint connection a joint point with the one intended to transmit a compressive force Tool part and the other pivot point with the Rotational body is connected.
- the intended tool parts are those on the cam roller forces acting or to be transmitted by it same load on the tool part is significantly reduced. In this sense, the fact that due to the geometry of the knee joint itself on End of the stroke or at the end of the molding process single can frame if a large force of that Applying the tool part is only proportional absorbing or closing low force from the cam roller is transferred.
- a very space-saving and yet effective Embodiment arises when the cam roller directly on one of the levers or handlebars Knee joint connection, especially on the rotating body articulated lever, is mounted.
- the drive 10 for a molding machine has one Rotating body 11, which is about a vertical axis 12 is rotatably mounted and driven.
- the rotating body 11 has evenly distributed on the circumference, each guides 13, 14 arranged one below the other, in which Quill 15 slidable parallel to the axis of rotation 12 are performed, which are used to operate tools, eg. B. serve to spread the segments of spreading tools.
- Spreading tools are e.g. B. in U.S. Patent 5,022,254 described, the central conical disclosed there Inner shaft instead of at the end of a piston rod on the upper end of the quill 15 is to be thought.
- a double handlebar or a double joint bracket 16 (on each side of the quill 15 is a handlebar or one Articulated strap arranged) articulated via a bolt 17.
- the head 18 At the free end of the double hinge bracket 16 is between the two individual tabs the head 18 one more fork-shaped handlebar or lever 19 on a common Bolt 20 hinged.
- the forked end 21 of the lever 19 is articulated on a bolt 22, which on a Bearing holder 23 is attached.
- the axis of the pin 22 extends tangentially with respect to the axis of rotation 12 and is the same distance from it as that Longitudinal central axis 15 'of the quill 15.
- the bearing holder 23 is firmly connected to the rotating body 11.
- Fig. 1 shows the drive in the lower end position of the Quill 15, while in Fig. 2 its upper end position is shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Description
Die Erfindung betrifft eine Maschine zum Herstellen von Dosenkörpern, insbes. von Zargen für Formdosen, mit einem Rotationskörper mit mehreren Stationen, wobei jeder, insbesondere mit einem Spreizwerkzeug versehenen, Station mindestens ein von einer mit einer Steuerkurve im Eingriff befindlichen Kurvenrolle betätigbaren Werkzeugteil zugeordnet ist, das parallel zur Rotationsachse des Rotationskörpers verschiebbar geführt und zur Aufbringung einer axialen Druckkraft vorgesehen ist.The invention relates to a machine for producing Can bodies, especially of frames for molded cans, with one Rotary body with several stations, each, especially provided with a spreading tool at least one of one with a control curve in the Engaged cam roller can be actuated Tool part is assigned that is parallel to Rotation axis of the rotating body guided and provided for the application of an axial compressive force is.
Aus der DE-A- 20 61 109 ist eine solche Vorrichtung zum partiellen Aufweiten der Seitenwand einer zuvor zylindrischen Dosenzarge bekannt, bei der jede Station ein mantelförmiges, innen profiliertes Außenwerkzeug, eine untere kurvengesteuerte Pinole mit einem Teller zum Aufnehmen einer Dosenzarge und Einfahren derselben in das Außenwerkzeug und einen von oben einfahrbaren, kurvengesteuerten elastischen Dorn aufweist, der die Dosenwand bei genügendem axialen Druck der Werkzeugteile gegen die Innenwand des Außenwerkzeugs preßt und die Dosenzarge entsprechend ausbildet.From DE-A-20 61 109 such a device for partial expansion of the side wall of a previously cylindrical can frame known at each station a jacket-shaped, internally profiled outer tool, a lower cam controlled quill with a plate for Picking up a can frame and moving it into the External tool and a retractable from above, cam-controlled elastic mandrel that the Can wall with sufficient axial pressure of the tool parts presses against the inner wall of the outer tool and the Forms the can frame accordingly.
Aus der US-A- 5 022 254 ist ein Spreizwerkzeug bekannt, bei dem statt eines elastischen Stempels eine aus mehreren am Umfang verteilten Segmente verwendet werden, wobei die Spreizsegmente - an einer axialen Bewegung gehindert - durch einen axial bewegten konischen Dorn radial nach außen bewegt werden.A spreading tool is known from US Pat. No. 5,022,254. where one instead of an elastic stamp several segments distributed over the circumference are used, with the spreading segments - on an axial movement hindered - by an axially moving conical mandrel be moved radially outward.
Der wesentliche Nachteil der kurvengesteuerten Antriebe besteht darin, daß die Kurvenrolle erhebliche Kräfte aufnehmen bzw. übertragen muß, wobei diese Kräfte mit zunehmender Ausbringung (Dosenzargen/Zeiteinheit) bzw. entsprechender Geschwindigkeit und dadurch steigenden Massenkräften ebenfalls größer werden. Entsprechend hoch wird der Verschleiß der Bauteile.The main disadvantage of cam-controlled drives is that the cam roller has significant forces must record or transfer, these forces with increasing output (can frames / time unit) or corresponding speed and thereby increasing Mass forces are also increasing. Correspondingly high the wear of the components.
Wie der US-A- 5 022 254 weiter entnehmbar ist, sind zum Betätigen des zentralen Teils des Formwerkzeugs insbesondere eines konischen Schaftes, Hydraulikzylinder verwendbar. Diese sind zwar zur Aufbringung bzw. Übertragung von großen Kräften geeignet, jedoch ist für sie - insbesondere bei Maschinen mit Vielfachwerkzeugen - ein erhöhter Steuerungsaufwand erforderlich, und außerdem lassen sich mit Hydraulikzylindern nur begrenzte Hubzahlen ausführen, wodurch die Ausbringung der Maschine ebenfalls begrenzt ist.How the US-A-5 022 254 can be further removed are to Actuate the central part of the mold especially a conical shaft, hydraulic cylinder usable. These are for application or Transfer of large forces is suitable, however, for they - especially on machines with multiple tools - increased control effort required, and moreover can only be limited with hydraulic cylinders Execute stroke rates, thereby increasing the machine's output is also limited.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art derart zu verbessern, daß die Verschleißanfälligkeit der Bauteile auch bei großer Ausbringung reduziert und ihre Lebensdauer entsprechend verlängern wird.The invention is therefore based on the object Device of the type mentioned at the beginning improve that the susceptibility to wear of the components even with large output reduced and their Life span will extend accordingly.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kurvenrolle mit der zentralen Gelenkstelle einer Kniegelenkverbindung verbunden ist, wobei von den äußeren Gelenkpunkten der Kniegelenkverbindung ein Gelenkpunkt mit dem zur Übertragung einer Druckkraft vorgesehenen Werkzeugteil und der andere Gelenkpunkt mit dem Rotationskörper verbunden ist. Durch die Zwischenschaltung einer Kniegelenkverbindung zwischen der Kurvenrolle und dem zur Übertragung einer Druckkraft vorgesehenen Werkzeugteil sind die auf die Kurvenrolle einwirkenden bzw. von ihr zu übertragenden Kräfte bei gleicher Belastung des Werkzeugteils erheblich reduziert. In diesem Sinne wirkt sich weiter günstig aus, daß aufgrund der Geometrie der Kniegelenkverbindung selbst am Ende des Hubes bzw. am Ende des Formvorgangs einer einzelnen Dosenzarge, wenn eine große Kraft von dem Werkzeugteil aufzubringen ist, nur eine verhältnismäßig geringe Kraft von der Kurvenrolle aufzunehmen bzw. zu übertragen ist.This object is achieved in that the cam roller with the central joint one Knee joint is connected, being from the outer Joint points of the knee joint connection a joint point with the one intended to transmit a compressive force Tool part and the other pivot point with the Rotational body is connected. Through the Interposition of a knee joint connection between the Cam roller and that for transmitting a compressive force The intended tool parts are those on the cam roller forces acting or to be transmitted by it same load on the tool part is significantly reduced. In this sense, the fact that due to the geometry of the knee joint itself on End of the stroke or at the end of the molding process single can frame if a large force of that Applying the tool part is only proportional absorbing or closing low force from the cam roller is transferred.
Eine sehr raumsparende und trotzdem wirkungsvolle Ausführungsform ergibt sich, wenn die Kurvenrolle unmittelbar an einem der Hebel oder Lenker der Kniegelenkverbindung, insbes. an dem am Rotationskörper angelenkten Hebel, gelagert ist.A very space-saving and yet effective Embodiment arises when the cam roller directly on one of the levers or handlebars Knee joint connection, especially on the rotating body articulated lever, is mounted.
Eine weitere Vereinfachung des Antriebs - sowohl hinsichtlich seiner Herstellung als auch seiner Anordnung - ergibt sich, wenn die Kurvenrolle nur einseitig an einer "offenen" Steuerkurve anliegt und von einem Federspeicher, z. B. einer Schraubenfeder, gegen diese gedrückt bzw. gezogen wird.Another simplification of the drive - both in terms of its manufacture as well as its arrangement - results if the cam roller only on one side an "open" control curve and one Spring accumulator, e.g. B. a coil spring against this is pressed or pulled.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung weitgehend vereinfacht dargestellt und im folgenden näher erläutert. Es zeigen
- Fig. 1
- einen Antrieb für eine Maschine zum Herstellen von Formdosen in einem auszugsweisen Querschnitt durch die Rotationsachse,
- Fig. 2
- den Antrieb in einem anderen auszugsweisen Querschnitt durch die Rotationsachse und
- Fig. 3
- den Antrieb in einem Schnitt längs der Linie III-III in Fig. 2.
- Fig. 1
- a drive for a machine for producing molded cans in a partial cross-section through the axis of rotation,
- Fig. 2
- the drive in another excerpt cross section through the axis of rotation and
- Fig. 3
- the drive in a section along the line III-III in Fig. 2nd
Der Antrieb 10 für eine Formmaschine weist einen
Rotationskörper 11 auf, der um eine vertikale Achse 12
drehbar gelagert und antreibbar ist. Der Rotationskörper
11 weist gleichmäßig am Umfang verteilte, jeweils
untereinander angeordnete Führungen 13, 14 auf, in denen
Pinolen 15 parallel zur Rotationsachse 12 gleitbar
geführt sind, die zur Betätigung von Werkzeugen, z. B.
zum Spreizen der Segmente von Spreizwerkzeugen dienen.
Spreizwerkzeuge sind z. B. in der US-PS 5 022 254
beschrieben, wobei der dort offenbarte zentrale konische
Innenschaft statt an dem Ende einer Kolbenstange auf dem
oberen Ende der Pinolen 15 zu denken ist.The
Zwischen den Führungen 13 und 14 ist an die Pinolen 15
ein Doppellenker oder eine Doppelgelenklasche 16 (auf
jeder Seite der Pinolen 15 ist ein Lenker bzw. eine
Gelenklasche angeordnet) über einen Bolzen 17 angelenkt.
An dem freien Ende der Doppelgelenklasche 16 ist zwischen
den beiden einzelnen Laschen der Kopf 18 eines im übrigen
gabelförmigen Lenkers oder Hebels 19 an einem gemeinsamen
Bolzen 20 angelenkt. Das gabelförmige Ende 21 des Hebels
19 ist an einem Bolzen 22 angelenkt, der an einem
Lagerhalter 23 befestigt ist. Die Achse des Bolzens 22
verläuft tangential in bezug auf die Rotationsachse 12
und weist von dieser die gleiche Entfernung auf wie die
Längsmittelachse 15' der Pinolen 15. Der Lagerhalter 23
ist fest mit dem Rotationskörper 11 verbunden.Between the
Am Kopf 18 des Hebels 19 ist eine Kurvenrolle 25
gelagert, deren Achse parallel zu der gemeinsamen
gedachten Ebene durch die Achsen der Bolzen 20 und 22
geht. Die Rolle 25 steht im Eingriff mit einer - absolut
gesehen - feststehenden, um die Rotationsachse 12
angeordneten Steuerkurve 26. Damit die Kurvenrolle 25
immer an der Steuerkurve 26 anliegt, ist ein aus
Zugfedern gebildete Federspeicher 27 vorgesehen, der
einerseits an Zapfen 28 an den Lenkern der
Doppelgelenklasche 16 angreift und andererseits bei 29 am
Rotationskörper 11 befestigt ist.At the
Fig. 1 zeigt den Antrieb in der unteren Endposition der
Pinole 15, während in Fig. 2 ihre obere Endposition
dargestellt ist.Fig. 1 shows the drive in the lower end position of the
Claims (3)
- Machine - for producing can bodies - with a rotary body (11) with several stations, whereby at least one tool part (15), which is controlled by a cam roller (25) in engagement with a cam (26) and is provided for transfer of a pressure force, is allocated to each station, said tool part being guided to be able to slide parallel to the rotational axis (12) of the rotary body (11), characterised in that the cam roller (25) is connected to the central articulation area (20) of a knee joint connection (16, 19), whereby of the outer articulation points (17, 22) of the knee joint connection, one articulation point (17) is connected to the tool part (15) provided for transferring a pressure force and the other articulation point (22) is connected to the rotary body (11).
- Machine according to Claim 1, characterised in that the cam roller (25) is mounted directly on one of the levers (19) of the knee joint connection.
- Machine according to one of Claims 1 or 2, characterised in that the cam roller (25) abuts against an open cam (26) on one side, and may be pressed against this by a spring-loaded means (27).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4408150A DE4408150A1 (en) | 1994-03-11 | 1994-03-11 | Can making machine |
DE4408150 | 1994-03-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0671229A1 EP0671229A1 (en) | 1995-09-13 |
EP0671229B1 true EP0671229B1 (en) | 1998-09-16 |
Family
ID=6512447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95101528A Expired - Lifetime EP0671229B1 (en) | 1994-03-11 | 1995-02-04 | Machines for producing cans |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0671229B1 (en) |
DE (2) | DE4408150A1 (en) |
TW (1) | TW266169B (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2803343A (en) * | 1953-06-03 | 1957-08-20 | Continental Can Co | Can end sorting apparatus |
US3704619A (en) * | 1971-06-14 | 1972-12-05 | Standun | Redraw blankholder positioning mechanism for cup-shaped article formers such as metallic can body formers and the like |
BE789371A (en) * | 1971-09-29 | 1973-01-15 | Peltzer & Ehlers | DEVICE FOR TRANSPORTING PARTS FROM ONE DIE TO THE NEXT IN MULTI-STAGE PRESSES. |
DE2519557C3 (en) * | 1975-05-02 | 1979-10-25 | L. Schuler Gmbh, 7320 Goeppingen | Control of a device for drawing-in and internal calibration |
US4856316A (en) * | 1987-07-08 | 1989-08-15 | Weldex, Inc. | Apparatus for forming joints |
CH676210A5 (en) * | 1988-07-19 | 1990-12-28 | Elpatronic Ag |
-
1994
- 1994-03-11 DE DE4408150A patent/DE4408150A1/en not_active Withdrawn
- 1994-12-29 TW TW083112342A patent/TW266169B/zh active
-
1995
- 1995-02-04 DE DE59503562T patent/DE59503562D1/en not_active Expired - Fee Related
- 1995-02-04 EP EP95101528A patent/EP0671229B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
TW266169B (en) | 1995-12-21 |
EP0671229A1 (en) | 1995-09-13 |
DE59503562D1 (en) | 1998-10-22 |
DE4408150A1 (en) | 1995-09-14 |
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