EP3666515A1 - 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
EP3666515A1
EP3666515A1 EP19209867.1A EP19209867A EP3666515A1 EP 3666515 A1 EP3666515 A1 EP 3666515A1 EP 19209867 A EP19209867 A EP 19209867A EP 3666515 A1 EP3666515 A1 EP 3666515A1
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EP
European Patent Office
Prior art keywords
clamping
loading
squeegee
parallel
emptying
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Granted
Application number
EP19209867.1A
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German (de)
French (fr)
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EP3666515B1 (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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Publication of EP3666515A1 publication Critical patent/EP3666515A1/en
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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 emptying trolley of a single-day press according to the preamble of the main claim.
  • a loading and unloading device for presses, in particular for single-day presses, is known, DE 103 33 574 B4 , which have two mutually parallel side rails and a cross rail connecting them, and pivot levers arranged on the side rails, which are connected to one another in an articulated manner with push rods which are parallel to the side rails and which are equipped at their inwardly directed ends with clamping or squeegee rods, each clamping or squeegee rod has a drive with which it can be pivoted parallel from a rest position approximated to the side rails into an operating position moved inwards in the direction of the opposite side rail.
  • a disadvantage of this known prior art is that the drive motor of the push rod has to accelerate very large masses of the pivoting levers, push rods and clamping or squeegee rods involved, as does the execution by means of pivoting levers for a non-linear movement of the clamping or squeegee rods, which leads to the Control of the device difficult.
  • the object of the invention is to provide a loading or emptying trolley of a one-day press with clamping or suction bar rods, the drives of which are technically and economically optimized.
  • each drive has a slide movable along the crossbar, on which one end of the Clamping or squeegee rod is arranged, linear drives being coupled to the slide.
  • linear drives have the advantage of simple control, just as much of the mass of the clamping or squeegee bars and their movement mechanism, including swivel levers and push rods, can be removed from the movable carriage on the loading or unloading trolley.
  • the linear drive consists of a linear motor with a stator and a rotor, in which the stator with its permanent magnets is arranged on the cross bar of the loading or emptying carriage and the rotor on the slide, so that with this linear motor a much better one Dynamics can be achieved when this can be achieved with conventional linear drives.
  • a linear motor is essentially wear-free because it has no moving parts.
  • Such a linear motor also requires little maintenance, except for the runner's sled on the cross member.
  • Another advantage is the possibility of direct measurement of the clamping or squeegee rod, which enables very precise positioning with a high resolution.
  • the linear drives consist of pneumatic, hydraulic or electrical servo lifting cylinders or also rack or spindle drives which work in the direction of the crossbar and drive the movable slide, such a linear drive also offering significant advantages, such as the removal of Mass forces from the clamping or squeegee bars and the swivel levers through the slide in the crossbar of the loading or unloading trolley.
  • the pivoting levers of the loading or emptying trolley are advantageously formed in one piece, the function levers being connected to linear guides of the clamping or suction bar rods so as to be longitudinally displaceable in order to be able to carry out the required movement.
  • terminal strips with clamps for clamping workpiece stacks to be pressed are arranged on the terminal strip rod, which, after a loading carriage has been driven into a press, the side rails of which extend to the left and right of a press table, by opening the clamps and either simply pivoting out the terminal strip rods or , in another advantageous embodiment, can be placed on the press table by lowering the terminal strip rods beforehand and then pivoting them out.
  • Suction lifters for lifting finished pressed workpieces are arranged on the squeegee bar of the emptying trolley, so that after opening a single-day press and swiveling in the squeegee bars with subsequent lowering and lifting of the squeegee bar, they can be conveyed out of a press.
  • the drive of the clamping or squeegee bars on existing loading or emptying wagons can be retrofitted, so that older loading or emptying wagons can be equipped with the inventive drive almost without major changes.
  • the loading carriage 1 of a deck press like the emptying carriage 2 of such a deck press, consists of two side rails 3 which are parallel to one another and are mounted on rollers 18 and whose distance is greater than the width of a press table.
  • the two side members 3 are connected to one another by means of a cross member 4, so that an essentially U-shaped basic construction is produced, the respective open side being used to be able to be inserted into a single-day press.
  • pivoted levers 5 mounted on vertical axes of rotation are arranged in an articulated manner 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 being articulated to one another via a push rod 8 parallel to the side rail 3 are connected, as are the ends of the function levers 7 which, in a loading carriage 1, have an inner clamping bar rod 9 parallel to the side rail 3 with clamping bars 11 for clamping a workpiece stack 16 and, in one embodiment as an emptying carriage 2, articulately connect a suction bar rod 10 with suction lifters 12 are equipped to be swung in and lowered over a workpiece 17 after the end of a pressing process and the open press, in order to be able to lift it and convey it out of a press.
  • a linear drive is provided on the cross beam 4 of a loading and emptying 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 cross beam 4 and the rotor on the slide 13
  • the one-piece swivel levers 5 have, at the end of their function levers 7, connections to linear guides 15, on which they are fixed in a longitudinally displaceable manner on the clamping or squeegee bars 9; 10, these in turn being mechanically firmly attached to the sled with their ends directed towards the cross bars 4 13 are coupled to the linear motor 14.
  • Linear drives made of pneumatic, hydraulic or electric servo lifting cylinders or rack or spindle drives, which are arranged parallel to the cross bar 4 of the loading or emptying carriage 1; 2, are not shown in the drawing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Es wird ein Beschick- oder Entleerwagen einer Einetagenpresse mit Klemm- oder Saugleistenstangen mit parallelen Seitenholmen (3) und sie verbindendem Querholm (4) sowie mit an den Seitenholmen (3) angeordneten Schwenkhebeln (5) mit jeweils einem kurzen Krafthebel (6) und einem Funktionshebel (7) zur Verfügung gestellt, wobei die Krafthebelenden jeweils eines Seitenholmes (3) mit einer zum Seitenholm (3) parallelen äußeren Schubstange (8) und die Funktionshebelenden mit einer zum Seitenholm (3) parallelen inneren Klemm- oder Saugleistenstange (9; 10) gelenkig verbunden sind, wobei diese über Antriebe aus an den Seitenholmen (3) angenäherten Ruhepositionen parallel in nach innen in Richtung des gegenüberliegenden Seitenholms (3) bewegten Betriebspositionen verschwenkbar sind, deren Antriebe technisch und wirtschaftlich optimiert sind, was dadurch erreicht wird, dass jeder Antrieb einen entlang des Querholmes (4) beweglichen Schlitten (13) aufweist, an dem ein Ende der Klemm- oder Saugleistenstange (9; 10) angeordnet ist und an den Schlitten (13) Linearantriebe zum Ein- und Ausschwenken der Klemm- oder Saugleistenstangen (9; 10) angekoppelt sind.It becomes a loading or emptying trolley of a single-day press with clamping or squeegee bars with parallel side bars (3) and cross bar connecting them (4) as well as with pivoting levers (5) arranged on the side bars (3), each with a short power lever (6) and one Function lever (7) provided, the power lever ends of a side rail (3) with an outer push rod (8) parallel to the side rail (3) and the function lever ends with an inner clamping or squeegee rod (9; 10 ) are articulated, which can be pivoted via drives from rest positions approximated to the side rails (3) in parallel in operating positions moved inward towards the opposite side rail (3), the drives of which are technically and economically optimized, which is achieved in that everyone Drive has a slide (13) movable along the cross bar (4), on which one end of the clamping or suction line rod (9; 10) is arranged and linear drives are coupled to the carriage (13) for pivoting the clamping or suction bar rods (9; 10) in and out.

Description

Die Erfindung betrifft einen Beschick- oder Entleerwagen einer Einetagenpresse gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a loading or emptying trolley of a single-day 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.A loading and unloading device for presses, in particular for single-day presses, is known, DE 103 33 574 B4 , which have two mutually parallel side rails and a cross rail connecting them, and pivot levers arranged on the side rails, which are connected to one another in an articulated manner with push rods which are parallel to the side rails and which are equipped at their inwardly directed ends with clamping or squeegee rods, each clamping or squeegee rod has a drive with which it can be pivoted parallel from a rest position approximated to the side rails into an operating position moved inwards in the direction of the opposite side rail.

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 disadvantage of this known prior art is that the drive motor of the push rod has to accelerate very large masses of the pivoting levers, push rods and clamping or squeegee rods involved, as does the execution by means of pivoting levers for a non-linear movement of the clamping or squeegee rods, which leads to the Control of the device difficult.

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 emptying trolley of a one-day press with clamping or suction bar rods, 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 jeder Antrieb einen entlang des Querholms beweglichen Schlitten aufweist, an dem ein Ende der Klemm- oder Saugleistenstange angeordnet ist, wobei an den Schlitten Linearantriebe angekoppelt 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 each drive has a slide movable along the crossbar, on which one end of the Clamping or squeegee rod is arranged, linear drives being coupled to the slide.

Diese 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.These linear drives have the advantage of simple control, just as much of the mass of the clamping or squeegee bars and their movement mechanism, including swivel levers and push rods, can be removed from the movable carriage on the loading or unloading 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 very particularly preferred embodiment of the invention, the linear drive consists of a linear motor with a stator and a rotor, in which the stator with its permanent magnets is arranged on the cross bar of the loading or emptying carriage and the rotor on the slide, so that with this linear motor a much better one Dynamics can be achieved when this can be achieved with conventional linear drives. Furthermore, such a linear motor is essentially wear-free because it has no moving parts. Such a linear motor also requires little maintenance, except for the runner's sled on the cross member. Another advantage is the possibility of direct measurement of the clamping or squeegee rod, which enables very precise positioning with a high resolution. It is also advantageous that such a linear motor can be used to achieve arbitrarily large travels of the clamping or squeegee bars, since the traversing path along the crossbar can be of any length and the increasing length of the swivel levers and thus their increasing mass have a significantly smaller negative influence than would have been the case with 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 electrical servo lifting cylinders or also rack or spindle drives which work in the direction of the crossbar and drive the movable slide, such a linear drive also offering significant advantages, such as the removal of Mass forces from the clamping or squeegee bars and the swivel levers through the slide in the crossbar of the loading or unloading 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 pivoting levers of the loading or emptying trolley are advantageously formed in one piece, the function levers being connected to linear guides of the clamping or suction bar rods so as to be longitudinally displaceable 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.Several terminal strips with clamps for clamping workpiece stacks to be pressed are arranged on the terminal strip rod, which, after a loading carriage has been driven into a press, the side rails of which extend to the left and right of a press table, by opening the clamps and either simply pivoting out the terminal strip rods or , in another advantageous embodiment, can be placed on the press table by lowering the terminal strip rods beforehand and then pivoting 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.Suction lifters for lifting finished pressed workpieces are arranged on the squeegee bar of the emptying trolley, so that after opening a single-day press and swiveling in the squeegee bars with subsequent lowering and lifting of the squeegee bar, they can be conveyed out of a press.

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.Advantageously, the drive of the clamping or squeegee bars on existing loading or emptying wagons can be retrofitted, so that older loading or emptying wagons can be equipped with the inventive drive almost without 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 one-day press,
Fig. 2
a sketched top view of an emptying car of a one-day press and
Fig. 3
a side view of the empty wagon 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 carriage 1 of a deck press, like the emptying carriage 2 of such a deck press, consists of two side rails 3 which are parallel to one another and are mounted on rollers 18 and whose distance is greater than the width of a press table. The two side members 3 are connected to one another by means of a cross member 4, so that an essentially U-shaped basic construction is produced, the respective open side being used to be able to be inserted into a single-day 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.On the side rails 3, pivoted levers 5 mounted on vertical axes of rotation are arranged in an articulated manner 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 being articulated to one another via a push rod 8 parallel to the side rail 3 are connected, as are the ends of the function levers 7 which, in a loading carriage 1, have an inner clamping bar rod 9 parallel to the side rail 3 with clamping bars 11 for clamping a workpiece stack 16 and, in one embodiment as an emptying carriage 2, articulately connect a suction bar rod 10 with suction lifters 12 are equipped to be swung in and lowered over a workpiece 17 after the end of a pressing process and the open press, 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 cross beam 4 of a loading and emptying 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 cross beam 4 and the rotor on the slide 13 The one-piece swivel levers 5 have, at the end of their function levers 7, connections to linear guides 15, on which they are fixed in a longitudinally displaceable manner on the clamping or squeegee bars 9; 10, these in turn being mechanically firmly attached to the sled with their ends directed towards the cross bars 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.Linear drives made of pneumatic, hydraulic or electric servo lifting cylinders or rack or spindle drives, which are arranged parallel to the cross bar 4 of the loading or emptying carriage 1; 2, are not shown in the drawing.

Claims (7)

Beschick- oder Entleerwagen einer Einetagenpresse mit zwei zueinander parallelen Seitenholmen (3) und einem sie verbindenden Querholm (4) sowie mit an den Seitenholmen (3) angeordneten Schwenkhebeln (5) mit jeweils einem kurzen nach außen gerichteten Krafthebel (6) und einem nach innen gerichteten Funktionshebel (7), wobei die Enden der Krafthebel (6) jeweils eines Seitenholmes (3) mit einer zum Seitenholm (3) parallelen äußeren Schubstange (8) und die Enden der Funktionshebel (7) mit einer zum Seitenholm (3) parallelen inneren Klemm- oder Saugleistenstange (9;10) gelenkig miteinander verbunden sind, wobei die Klemm- oder Saugleistenstangen (9; 10) über Antriebe aus an den Seitenholmen (3) angenäherten Ruhepositionen parallel in nach innen in Richtung des gegenüberliegenden Seitenholms (3) bewegten Betriebspositionen verschwenkbar sind, dadurch gekennzeichnet, dass jeder Antrieb einen entlang des Querholmes (4) beweglichen Schlitten (13) aufweist, an dem ein Ende der Klemm- oder Saugleistenstange (8;9) angeordnet ist und dass an den Schlitten (13) Linearantriebe zum Ein- und Ausschwenken der Klemm- oder Saugleistenstangen (9; 10) angekoppelt sind.Loading or emptying trolleys of a single-day press with two parallel side rails (3) and a cross rail (4) connecting them, and with swivel levers (5) arranged on the side rails (3), each with a short outward force lever (6) and one inwards Functional lever (7), the ends of the power levers (6) each having a side rail (3) with an outer push rod (8) parallel to the side rail (3) and the ends of the function levers (7) having an inner one parallel to the side rail (3) Clamping or squeegee bars (9; 10) are connected to one another in an articulated manner, the clamping or squeegee bars (9; 10) being driven in parallel in operating positions moved inward in the direction of the opposite side bar (3) via drives from rest positions approximated to the side bars (3) are pivotable, characterized in that each drive has a slide (13) which can be moved along the cross member (4) and on which one end of the clamping or suction element Isten rod (8; 9) is arranged and that on the slide (13) linear drives for pivoting the clamping or squeegee rods (9; 10) are coupled. Beschick- oder Entleerwagen nach Anspruch 1, dadurch gekennzeichnet, dass der Linearantrieb aus einem Linearmotor (14) aus Stator und Läufer besteht, bei dem der Stator mit seinen Permanentmagneten am Querholm (4) angeordnet ist und der Läufer am Schlitten (13)Feeding or emptying trolley according to claim 1, characterized in that the linear drive consists of a linear motor (14) consisting of a stator and rotor, in which the stator with its permanent magnets is arranged on the cross member (4) and the rotor on the carriage (13) Beschick- oder Entleerwagen nach Anspruch 1, dadurch gekennzeichnet, dass der Linearantrieb aus einem parallel zur Bewegungsrichtung des Schlittens (13) angeordneten pneumatischen, hydraulischen oder elektrischen Servohubzylinder oder aus einem parallel zur Bewegungsrichtung des Schlittens (13) angeordneten Zahnstangen- oder Spindelantrieb besteht.Loading or emptying trolley according to claim 1, characterized in that the linear drive consists of a pneumatic, hydraulic or electric servo lifting cylinder arranged parallel to the direction of movement of the slide (13) or of a rack or spindle drive arranged parallel to the direction of movement of the slide (13). Beschick- oder Entleerwagen nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Schwenkhebel (5) einteilig ausgebildet sind und die Funktionshebel (7) an Linearführungen (15) längsverschieblich an den Klemm- oder Saugleistenstangen (9;10) festgelegt sind.Loading or emptying trolley according to one of the preceding claims, characterized in that the swivel levers (5) are formed in one piece and the function levers (7) are fixed on linear guides (15) in a longitudinally displaceable manner on the clamping or squeegee bars (9; 10). Beschick- oder Entleerwagen nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass an der Klemmleistenstange (9) Klemmleisten (11) mit Klammern zur Klemmung von zu verpressenden Werkstückstapeln (16) angeordnet sind.Loading or emptying trolley according to one of the preceding claims, characterized in that clamping strips (11) with clamps for clamping workpiece stacks to be pressed (16) are arranged on the clamping strip rod (9). Beschick- oder Entleerwagen nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass an seiner Saugleistenstange (10) Saugheber (12) zum Anheben fertig gepresster Werkstücke (17) angeordnet sind.Loading or emptying trolley according to one of the preceding claims, characterized in that suction lifters (12) for lifting finished pressed workpieces (17) are arranged on its squeegee rod (10). Beschick- oder Entleerwagen nach Anspruch 2, dadurch gekennzeichnet, dass der Antrieb der Klemm- oder Saugleistenstange (9;10) mit einem Linearmotor als Nachrüstsatz für herkömmliche Beschick- oder Entleerwagen (1;2) ausgebildet ist.Loading or emptying trolley according to claim 2, characterized in that the drive of the clamping or squeegee rod (9; 10) is designed with a linear motor as a retrofit kit for conventional loading or emptying trolleys (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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EP3666515A1 true EP3666515A1 (en) 2020-06-17
EP3666515B1 EP3666515B1 (en) 2021-08-25

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DE (1) DE102018131932B3 (en)
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Citations (3)

* 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
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
DE102007038674A1 (en) * 2007-08-15 2009-02-19 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for the production of large-sized sandwich lightweight panels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102015118603B4 (en) * 2015-10-30 2018-01-25 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for press feeding

Patent Citations (3)

* 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
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
DE102007038674A1 (en) * 2007-08-15 2009-02-19 Wemhöner Surface Technologies GmbH & Co. KG Apparatus and method for the production of large-sized sandwich lightweight panels

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EP3666515B1 (en) 2021-08-25
DE102018131932B3 (en) 2020-06-10

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