EP3666515B1 - Feeding or discharging dollies for a single-level press - Google Patents

Feeding or discharging dollies for a single-level press Download PDF

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Publication number
EP3666515B1
EP3666515B1 EP19209867.1A EP19209867A EP3666515B1 EP 3666515 B1 EP3666515 B1 EP 3666515B1 EP 19209867 A EP19209867 A EP 19209867A EP 3666515 B1 EP3666515 B1 EP 3666515B1
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Prior art keywords
clamping
bar
discharging
feeding
levers
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EP19209867.1A
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German (de)
French (fr)
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EP3666515A1 (en
Inventor
Peter Friesen
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Wemhoener Surface Technologies GmbH and Co KG
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Wemhoener Surface Technologies GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/20—Moulding or pressing characterised by using platen-presses
    • B27N3/22—Charging or discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses

Definitions

  • the invention relates to a loading or unloading trolley of a single-daylight press according to the preamble of the main claim.
  • a loading and unloading device for presses, in particular for single-daylight presses, is known, DE 103 33 574 B4 which have two mutually parallel side bars and a cross bar connecting them as well as pivoting levers arranged on the side bars, which are articulated to one another with push rods parallel to the side bars and which are equipped at their inwardly directed ends with clamping bars or suction bar bars, each clamping bar or the suction bar has a drive with which it can be pivoted from a rest position approximated to the side bars parallel to an operating position moved inward in the direction of the opposite side bar.
  • DE 35 03 156 C1 Another known device for feeding short-cycle presses, DE 35 03 156 C1 , knows at the beginning and at the end of a trolley arranged parallel guides for supporting tubes of pressed material, which are pretensioned inwards with spring-supported pivot levers to adjust the distance and are equipped with restraint belts that can be wound on belt drums for retrieval, such a mechanism being very complex, maintenance-intensive, imprecise and slow .
  • DE 35 03 156 C1 discloses the preamble of claim 1.
  • the object of the invention is to provide a loading or unloading trolley for a single-daylight press with clamping or suction bar bars, the drives of which are technically and economically optimized.
  • Linear drives have the advantage of simple control, just like a large part of the mass of the clamping or suction bar rods and their movement mechanics, including pivot levers and push rods, can be removed from the moving carriage to the loading or emptying trolley.
  • the linear drive consists of a linear motor with a stator and a runner, in which the stator with its permanent magnets is arranged on the cross bar of the loading or emptying car and the runner is arranged on the slide, so that this linear motor is a much better one Dynamics can be achieved than can be achieved with conventional linear drives. Furthermore, such a linear motor is essentially wear-free since it has no moving parts. Such a linear motor also requires hardly any maintenance, except for the carriage of the rotor on the crossbar. Another advantage is the possibility of a direct path measurement of the clamping or suction bar rod, which enables very precise positioning with a high resolution.
  • any large travel paths of the clamping or suction bar rods can be implemented by means of such a linear motor, since the travel path along the transverse spar can be made as long as desired and the increasing length of the pivot levers and thus their increasing mass have a significantly smaller negative influence than would have been the case in the known prior art.
  • the linear drives consist of pneumatic, hydraulic or electric servo lifting cylinders or rack and pinion or spindle drives that work in the direction of the cross bar and drive the movable carriage, such a linear drive also offering significant advantages, such as the removal of Mass forces from the clamping or suction bar rods and the pivot levers through the slide into the cross bar of the loading or emptying trolley.
  • the pivot levers of the loading or emptying trolley are advantageously designed in one piece, the functional levers being connected to linear guides of the clamping or suction bar rods in a longitudinally displaceable manner in order to be able to carry out the required movement.
  • clamping bar rod On the clamping bar rod, several clamping bars with clamps for clamping the stacks of workpieces to be pressed are arranged , in another advantageous embodiment, can be placed on the press table by lowering the clamping bar rods beforehand and then swiveling them out.
  • suction lifters for lifting ready-pressed workpieces so that they can be conveyed out of a press after opening a single-daylight press and swiveling in the squeegee bars and then lowering and lifting the squeegee bar again.
  • the drive of the clamping or suction bar rods is advantageously designed to be retrofittable on existing loading or emptying trolleys, so that older charging or emptying trolleys can be equipped with the inventive drive with almost no major changes.
  • the loading trolley 1 of a multi-tier press like the emptying trolley 2 of such a multi-tier press, consists of two parallel side members 3 mounted on rollers 18, the distance between which is greater than the width of a press table.
  • the two side bars 3 are connected to one another by means of a transverse bar 4, so that an essentially U-shaped basic structure is created, the open side in each case serving to be able to be inserted into a single-daylight press.
  • Swivel levers 5 mounted on vertical axes of rotation are articulated on the side bars 3 and each have a short outwardly directed power lever 6 and an inwardly directed longer function lever 7, the ends of the power levers 6 each being articulated to one another via a push rod 8 parallel to the side bar 3 are connected, as are the ends of the functional levers 7, which in a loading trolley 1 have an inner clamping bar rod 9 parallel to the side rail 3 with clamping bars 11 for clamping a stack of workpieces 16 and, in one embodiment as an emptying trolley 2, articulately connecting a suction bar 10 with each other, which are connected with suction lifters 12 are equipped to be swiveled in over a workpiece 17 and lowered over it after the completion of a pressing process and the press is open in order to be able to lift it and convey it out of a press.
  • a linear drive is provided on the transverse beam 4 of a loading and unloading carriage 1; 2, which in the embodiment shown as a linear motor 14 consists of a stator and a rotor, in which the stator with its permanent magnets is arranged on the transverse beam 4 and the rotor on the carriage 13
  • the one-piece swivel levers 5 have at the end of their functional levers 7 connections to linear guides 15, on which they are longitudinally displaceable on the clamping or suction bar rods 9; 10, these in turn mechanically fixed to the slide with their ends directed towards the crossbars 4 13 are coupled to the linear motor 14.
  • linear drives composed of pneumatic, hydraulic or electric servo lifting cylinders or rack and pinion drives or spindle drives which are arranged parallel to the transverse beam 4 of the loading or emptying car 1; 2.

Description

Die Erfindung betrifft einen Beschick- oder Entleerwagen einer Einetagenpresse gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a loading or unloading trolley of a single-daylight press according to the preamble of the main claim.

Es ist eine Beschick- und Entleervorrichtung für Pressen, insbesondere für Einetagenpressen bekannt, DE 103 33 574 B4 , die zwei zueinander parallele Seitenholme und einen sie verbindenden Querholm sowie an den Seitenholmen angeordnete Schwenkhebel aufweisen, die mit zu den Seitenholmen parallelen Schubstangen gelenkig miteinander verbunden sind und die an ihren nach innen gerichteten Enden mit Klemm- oder Saugleistenstangen ausgestattet sind, wobei jede Klemm- oder Saugleistenstange über einen Antrieb verfügt, mit dem sie aus einer an den Seitenholmen angenäherten Ruheposition parallel in eine nach innen in Richtung des gegenüberliegenden Seitenholmes bewegte Betriebsposition verschwenkbar ist. Nachteilig an diesem vorbekannten Stand der Technik ist, dass der Antriebsmotor der Schubstange sehr große Massen der beteiligten Schwenkhebel, Schubstangen und Klemm- oder Saugleistenstangen beschleunigen muss, ebenso wie die Ausführung mittels Schwenkhebeln zu einer nicht linearen Bewegung der Klemm- oder Saugleistenstangen führt, was die Steuerung der Vorrichtung erschwert.A loading and unloading device for presses, in particular for single-daylight presses, is known, DE 103 33 574 B4 which have two mutually parallel side bars and a cross bar connecting them as well as pivoting levers arranged on the side bars, which are articulated to one another with push rods parallel to the side bars and which are equipped at their inwardly directed ends with clamping bars or suction bar bars, each clamping bar or the suction bar has a drive with which it can be pivoted from a rest position approximated to the side bars parallel to an operating position moved inward in the direction of the opposite side bar. The disadvantage of this known prior art is that the drive motor of the push rod has to accelerate very large masses of the swiveling levers, push rods and clamping or suction bar bars involved, as well as the execution by means of swiveling levers to a non-linear movement of the clamping or suction bar bars, which leads to the Control of the device made difficult.

Eine andere bekannte Vorrichtung zum Beschicken von Kurztaktpressen, DE 35 03 156 C1 , weißt am Anfang und am Ende eines Transportwagens angeordnete Parallelführungen für Tragrohre von Preßgut auf, die zur Abstandsverstellung nach innen mit federunterstützen Schwenkhebeln vorgespannt und zum Rückholen mit auf Gurttrommeln aufwickelbaren Rückhaltegurten ausgestattet sind, wobei eine solche Mechanik sehr aufwendig, pflegeintensiv, ungenau und langsam ist. DE 35 03 156 C1 offenbart den Oberbegriff von Anspruch 1.Another known device for feeding short-cycle presses, DE 35 03 156 C1 , knows at the beginning and at the end of a trolley arranged parallel guides for supporting tubes of pressed material, which are pretensioned inwards with spring-supported pivot levers to adjust the distance and are equipped with restraint belts that can be wound on belt drums for retrieval, such a mechanism being very complex, maintenance-intensive, imprecise and slow . DE 35 03 156 C1 discloses the preamble of claim 1.

Bekannt ist auch eine Vorrichtung und ein Verfahren zur Herstellung von großformatigen Sandwich-Leichtbauplatten, DE 10 2007 038 674 A1 , deren Vorrichtung einen Beschickwagen einer Presse mit seitlich ein- und ausschwenkbaren Tragarmen von parallel zusammen- und auseinanderfahrbaren Tragleisten aufweist, die an einem Ende des Beschickwagens horizontal querverschieblich geführt sind, wobei deren Bewegung jedoch rein mechanisch erfolgt.Also known is a device and a method for the production of large-format sandwich lightweight panels, DE 10 2007 038 674 A1 , whose The device has a loading trolley of a press with laterally swiveling in and out support arms of parallel collapsible and apart supporting strips which are horizontally transversely displaceable at one end of the loading trolley, but their movement is purely mechanical.

Aufgabe der Erfindung ist es, einen Beschick- oder Entleerwagen einer Einetagenpresse mit Klemm- oder Saugleistenstangen zur Verfügung zu stellen, deren Antriebe technisch und wirtschaftlich optimiert sind.The object of the invention is to provide a loading or unloading trolley for a single-daylight press with clamping or suction bar bars, the drives of which are technically and economically optimized.

Die Lösung dieser Aufgabe erfolgt in Verbindung mit den Merkmalen des Oberbegriffes erfindungsgemäß im Zusammenhang mit den technischen Merkmalen des kennzeichnenden Teils des ersten Hauptanspruches dadurch, dass die Enden der Krafthebel jeweils eines Seitenholmes mit einer zum Seitenholm parallelen äußeren Schubstange verbunden sind.This object is achieved in connection with the features of the preamble according to the invention in connection with the technical features of the characterizing part of the first main claim in that the ends of the power levers of each side spar are connected to an outer push rod parallel to the side spar.

Linearantriebe haben den Vorteil einer einfachen Ansteuerung, ebenso wie ein Großteil der Masse der Klemm- oder Saugleistenstangen und deren Bewegungsmechanik samt Schwenkhebeln und Schubstangen vom beweglichen Schlitten auf den Beschick- oder Entleerwagen abgetragen werden kann.Linear drives have the advantage of simple control, just like a large part of the mass of the clamping or suction bar rods and their movement mechanics, including pivot levers and push rods, can be removed from the moving carriage to the loading or emptying trolley.

Gemäß einer ganz besonders bevorzugten Ausführungsform der Erfindung besteht der Linearantrieb aus einem Linearmotor mit einem Stator und einem Läufer, bei dem der Stator mit seinen Permanentmagneten am Querholm des Beschick- oder Entleerwagens angeordnet ist und der Läufer am Schlitten, sodass mit diesem Linearmotor eine wesentlich bessere Dynamik erzielbar ist, als dies mit herkömmlichen Linearantrieben zu verwirklichen ist. Des Weiteren ist ein solcher Linearmotor im Wesentlichen verschleißfrei, da er keine beweglichen Teile aufweist. Ebenfalls benötigt ein solcher Linearmotor kaum Wartung, bis auf den Schlitten des Läufers auf dem Querholm. Ein weiterer Vorteil besteht in der Möglichkeit einer direkten Wegmessung der Klemm- oder Saugleistenstange, die mit einer hohen Auflösung eine sehr präzise Positionierung ermöglicht. Vorteilhaft ist des Weiteren, dass mittels eines solchen Linearmotors beliebig große Verfahrwege der Klemm- oder Saugleistenstangen realisierbar sind, da der Verfahrweg entlang des Querholms beliebig lang ausgebildet werden kann und die zunehmende Länge der Schwenkhebel und damit deren größer werdende Masse einen wesentlich geringeren negativen Einfluss aufweisen, als dies beim bekannten Stand der Technik der Fall gewesen wäre.According to a particularly preferred embodiment of the invention, the linear drive consists of a linear motor with a stator and a runner, in which the stator with its permanent magnets is arranged on the cross bar of the loading or emptying car and the runner is arranged on the slide, so that this linear motor is a much better one Dynamics can be achieved than can be achieved with conventional linear drives. Furthermore, such a linear motor is essentially wear-free since it has no moving parts. Such a linear motor also requires hardly any maintenance, except for the carriage of the rotor on the crossbar. Another advantage is the possibility of a direct path measurement of the clamping or suction bar rod, which enables very precise positioning with a high resolution. It is also advantageous that any large travel paths of the clamping or suction bar rods can be implemented by means of such a linear motor, since the travel path along the transverse spar can be made as long as desired and the increasing length of the pivot levers and thus their increasing mass have a significantly smaller negative influence than would have been the case in the known prior art.

Entsprechend einer anderen vorteilhaften Ausführungsform der Erfindung bestehen die Linearantriebe aus pneumatischen, hydraulischen oder elektrischen Servohubzylindern oder auch Zahnstangen- oder Spindelantrieben, die in Richtung des Querholmes arbeiten und den beweglichen Schlitten antreiben, wobei auch ein solcher Linearantrieb wesentliche Vorteile bietet, wie beispielsweise die Abtragung von Massenkräften aus den Klemm- oder Saugleistenstangen und den Schwenkhebeln durch den Schlitten in den Querholm des Beschick- oder Entleerwagens.According to another advantageous embodiment of the invention, the linear drives consist of pneumatic, hydraulic or electric servo lifting cylinders or rack and pinion or spindle drives that work in the direction of the cross bar and drive the movable carriage, such a linear drive also offering significant advantages, such as the removal of Mass forces from the clamping or suction bar rods and the pivot levers through the slide into the cross bar of the loading or emptying trolley.

Die Schwenkhebel des Beschick-oder Entleerwagens sind vorteilhafterweise einteilig ausgebildet, wobei die Funktionshebel an Linearführungen der Klemm- oder Saugleistenstangen längsverschieblich angeschlossen sind, um die geforderte Bewegung durchführen zu können.The pivot levers of the loading or emptying trolley are advantageously designed in one piece, the functional levers being connected to linear guides of the clamping or suction bar rods in a longitudinally displaceable manner in order to be able to carry out the required movement.

An der Klemmleistenstange sind dabei mehrere Klemmleisten mit Klammern zur Klemmung von zu verpressenden Werkstückstapeln angeordnet, die nach dem Einfahren eines Beschickwagens in eine Presse, dessen Seitenholme sich links und rechts eines Pressentisches erstrecken, durch ein Öffnen der Klammern und entweder ein einfaches Ausschwenken der Klemmleistenstangen oder, bei einer anderen vorteilhaften Ausführungsform, durch ein vorheriges Absenken der Klemmleistenstangen und deren nachfolgendem Ausschwenken auf dem Pressentisch abgelegt werden können.On the clamping bar rod, several clamping bars with clamps for clamping the stacks of workpieces to be pressed are arranged , in another advantageous embodiment, can be placed on the press table by lowering the clamping bar rods beforehand and then swiveling them out.

An der Saugleistenstange des Entleerwagens sind Saugheber zum Anheben fertigverpresster Werkstücke angeordnet, sodass diese nach einem Öffnen einer Einetagenpresse und Einschwenken der Saugleistenstangen mit nachfolgendem Absenken und Wiederanheben der Saugleistenstange aus einer Presse herausgefördert werden können.On the squeegee bar of the emptying car there are suction lifters for lifting ready-pressed workpieces so that they can be conveyed out of a press after opening a single-daylight press and swiveling in the squeegee bars and then lowering and lifting the squeegee bar again.

Vorteilhafterweise ist der Antrieb der Klemm- oder Saugleistenstangen an bestehenden Beschick- oder Entleerwagen nachrüstbar ausgebildet, sodass ältere Beschick- oder Entleerwagen nahezu ohne große Änderungen mit dem erfinderischen Antrieb ausgestattet werden können.The drive of the clamping or suction bar rods is advantageously designed to be retrofittable on existing loading or emptying trolleys, so that older charging or emptying trolleys can be equipped with the inventive drive with almost no major changes.

Nachfolgend sind zwei Ausführungsbeispiele der Erfindung anhand von Zeichnungen näher beschrieben. Es zeigen:

Fig. 1
eine skizzierte Draufsicht auf einen Beschickwagen einer Einetagenpresse,
Fig. 2
eine skizzierte Draufsicht auf einen Entleerwagen einer Einetagenpresse und
Fig. 3
eine Seitenansicht des Entleerwagens gemäß Fig. 2.
Two exemplary embodiments of the invention are described in more detail below with reference to drawings. Show it:
Fig. 1
a sketched top view of a loading carriage of a single-daylight press,
Fig. 2
a sketched top view of an emptying carriage of a single-daylight press and
Fig. 3
a side view of the emptying vehicle according to Fig. 2 .

Der Beschickwagen 1 einer Etagenpresse besteht ebenso wie der Entleerwagen 2 einer solchen Etagenpresse aus zwei zueinander parallelen und auf Rollen 18 gelagerten Seitenholmen 3, deren Abstand ein größeres Maß aufweist als die Breite eines Pressentisches. Die beiden Seitenholme 3 sind mittels eines Querholms 4 miteinander verbunden, sodass eine im wesentlichen U-förmige Grundkonstruktion erzeugt ist, wobei die jeweils offene Seite dazu dient in eine Einetagenpresse eingefahren werden zu können.The loading trolley 1 of a multi-tier press, like the emptying trolley 2 of such a multi-tier press, consists of two parallel side members 3 mounted on rollers 18, the distance between which is greater than the width of a press table. The two side bars 3 are connected to one another by means of a transverse bar 4, so that an essentially U-shaped basic structure is created, the open side in each case serving to be able to be inserted into a single-daylight press.

An den Seitenholmen 3 sind auf vertikalen Drehachsen gelagerte Schwenkhebel 5 gelenkig angeordnet und weisen jeweils einen kurzen nach außen gerichteten Krafthebel 6 und einen nach innen gerichteten längeren Funktionshebel 7 auf, wobei die Enden der Krafthebel 6 jeweils über eine zum Seitenholm 3 parallelen Schubstange 8 gelenkig miteinander verbunden sind, ebenso wie die Enden der Funktionshebel 7, die bei einem Beschickwagen 1 eine zum Seitenholm 3 parallele innere Klemmleistenstange 9 mit Klemmleisten 11 zum Klemmen eines Werkstückstapels 16 aufweisen und bei einer Ausführungsform als Entleerwagen 2 eine Saugleistenstange 10 gelenkig miteinander verbinden, die mit Saughebern 12 ausgestattet sind, um nach der Beendigung eines Pressvorganges und geöffneter Presse über ein Werkstück 17 eingeschwenkt und darüber abgesenkt zu werden, um dieses anzuheben und aus einer Presse herausbefördern zu können.Swivel levers 5 mounted on vertical axes of rotation are articulated on the side bars 3 and each have a short outwardly directed power lever 6 and an inwardly directed longer function lever 7, the ends of the power levers 6 each being articulated to one another via a push rod 8 parallel to the side bar 3 are connected, as are the ends of the functional levers 7, which in a loading trolley 1 have an inner clamping bar rod 9 parallel to the side rail 3 with clamping bars 11 for clamping a stack of workpieces 16 and, in one embodiment as an emptying trolley 2, articulately connecting a suction bar 10 with each other, which are connected with suction lifters 12 are equipped to be swiveled in over a workpiece 17 and lowered over it after the completion of a pressing process and the press is open in order to be able to lift it and convey it out of a press.

Am Querholm 4 eines Beschick- und Entleerwagens 1;2 ist ein Linearantrieb vorgesehen, der bei der dargestellten Ausführungsform als Linearmotor 14 aus einem Stator und einem Läufer besteht, bei dem der Stator mit seinen Permanentmagneten am Querholm 4 angeordnet ist und der Läufer am Schlitten 13. Die einteilig ausgebildeten Schwenkhebel 5 weisen am Ende ihrer Funktionshebel 7 Anschlüsse an Linearführungen 15 auf, an denen sie längsverschieblich an den Klemm- oder Saugleistenstangen 9;10 festgelegt sind, wobei diese ihrerseits mit ihren zu den Querholmen 4 gerichteten Enden mechanisch fest an den Schlitten 13 mit dem Linearmotor 14 angekoppelt sind.A linear drive is provided on the transverse beam 4 of a loading and unloading carriage 1; 2, which in the embodiment shown as a linear motor 14 consists of a stator and a rotor, in which the stator with its permanent magnets is arranged on the transverse beam 4 and the rotor on the carriage 13 The one-piece swivel levers 5 have at the end of their functional levers 7 connections to linear guides 15, on which they are longitudinally displaceable on the clamping or suction bar rods 9; 10, these in turn mechanically fixed to the slide with their ends directed towards the crossbars 4 13 are coupled to the linear motor 14.

Zeichnerisch nicht dargestellt sind Linearantriebe aus pneumatischen, hydraulischen oder elektrischen Servohubzylindern oder Zahnstangen- oder Spindelantrieben, die parallel zum Querholm 4 des Beschick- oder Entleerwagens 1;2 angeordnet sind.Not shown in the drawing are linear drives composed of pneumatic, hydraulic or electric servo lifting cylinders or rack and pinion drives or spindle drives which are arranged parallel to the transverse beam 4 of the loading or emptying car 1; 2.

Claims (7)

  1. Feeding or discharging dollies for a single-level press with two side bars (3) parallel to each other and a cross bar (4) connecting them as well as with pivot levers (5) arranged on the side bars (3) in each case with a short force lever (6) directed outward and a function lever (7) directed inward, wherein the force levers are shorter than the function levers (7) and the ends of the function levers (7) are connected to one another in articulated manner with an inner clamping or squeegee bar (9; 10) parallel to the side bar (3), wherein the ends of the function levers (7) have connections to linear guides (15), at which they are fixed in longitudinally displaceable manner to the clamping or squeegee bars (9; 10) and wherein the clamping or squeegee bars (9; 10) are pivotable via drives from resting positions approximated to the side bars (3) parallel operating positions moved inward in the direction of the opposing side bar (3), wherein each drive has a carriage (13) movable along the cross bar (4), at which an end of the clamping or squeegee bar (9; 10) is arranged and wherein linear drives for movement of the clamping or squeegee bars (9; 10) are coupled to the carriage (13), characterized in that the ends of the force levers (6) of a respective side bar (3) are connected to an outer push rod (8) parallel to the side bar (3).
  2. The feeding or discharging dollies according to claim 1, characterized in that the linear drive consists of a linear motor (14) made up of stator and rotor, in which the stator is arranged with its permanent magnet on the cross bar (4) and the rotor is arranged on the carriage (13).
  3. The feeding or discharging dollies according to claim 1, characterized in that the linear drive consists of a pneumatic, hydraulic or electrical servo piston cylinder arranged parallel to the direction of movement of the carriage (13) or a rack and pinion or spindle drive arranged parallel to the direction of movement of the carriage (13).
  4. The feeding or discharging dollies according to any of the aforementioned claims, characterized in that the pivot levers (5) are embodied in one piece.
  5. The feeding or discharging dollies according to any of the aforementioned claims, characterized in that clamping strips (11) with clamps for clamping the workpiece stacks (16) to be pressed are arranged on the clamping bar (9).
  6. The feeding or discharging dollies according to any of the aforementioned claims, characterized in that suction lifters (12) for lifting pressed workpieces (17) are arranged on the squeegee bar (10).
  7. The feeding or discharging dollies according to claim 2, characterized in that the drive of the clamping or squeegee bar (9; 10) is embodied with a linear motor as a retrofit kit for conventional feeding or discharging dollies (1; 2).
EP19209867.1A 2018-12-12 2019-11-18 Feeding or discharging dollies for a single-level press Active EP3666515B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018131932.0A DE102018131932B3 (en) 2018-12-12 2018-12-12 Loading or unloading trolleys

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Publication Number Publication Date
EP3666515A1 EP3666515A1 (en) 2020-06-17
EP3666515B1 true EP3666515B1 (en) 2021-08-25

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DE (1) DE102018131932B3 (en)
ES (1) ES2887234T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503156C1 (en) * 1985-01-31 1987-01-02 Wemhoener Heinrich Gmbh Co Process and device for feeding short-cycle presses
JP2002102964A (en) * 2000-10-03 2002-04-09 Hitachi Zosen Fukui Corp Driving device for feed bar of transfer press
DE10247782A1 (en) * 2002-10-14 2004-04-22 Otto Kaiser Gmbh Press or punch
DE10333574B4 (en) 2003-07-24 2006-02-09 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Charging and emptying device for presses, in particular one-floor presses
DE102007038674B4 (en) * 2007-08-15 2009-08-20 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for the production of large-sized sandwich lightweight panels
DE102015118603B4 (en) * 2015-10-30 2018-01-25 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for press feeding

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DE102018131932B3 (en) 2020-06-10
EP3666515A1 (en) 2020-06-17
ES2887234T3 (en) 2021-12-22

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