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EP0695690B1 - Method and apparatus for compressing and packaging fibrous materials in bales - Google Patents

Method and apparatus for compressing and packaging fibrous materials in bales Download PDF

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Publication number
EP0695690B1
EP0695690B1 EP94119461A EP94119461A EP0695690B1 EP 0695690 B1 EP0695690 B1 EP 0695690B1 EP 94119461 A EP94119461 A EP 94119461A EP 94119461 A EP94119461 A EP 94119461A EP 0695690 B1 EP0695690 B1 EP 0695690B1
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EP
European Patent Office
Prior art keywords
press
bale
iii
central
station
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
Application number
EP94119461A
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German (de)
French (fr)
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EP0695690A1 (en
Inventor
Gerold Fleissner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Nonwovens GmbH
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Fleissner GmbH
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Publication date
Priority claimed from DE4430537A external-priority patent/DE4430537A1/en
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP0695690A1 publication Critical patent/EP0695690A1/en
Application granted granted Critical
Publication of EP0695690B1 publication Critical patent/EP0695690B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/12Baling or bundling compressible fibrous material, e.g. peat
    • B65B27/125Baling or bundling compressible fibrous material, e.g. peat and wrapping or bagging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B9/00Presses specially adapted for particular purposes
    • B30B9/30Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3092Presses specially adapted for particular purposes for baling; Compression boxes therefor with two or more stationary press boxes co-operating alternately with a press ram or simultaneously with press rams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/12Baling or bundling compressible fibrous material, e.g. peat

Definitions

  • the invention relates to a method for packaging fibrous material in bales by multi-stage pressing with multiple pre-presses, in which the pre-pressed in box-shaped, doorless, stable containers is conveyed to a central press, in which the pre-pressed material is pressed into a bale and is then packed by transporting the containers filled with the fibrous material, consisting of a one-piece jacket part and a base plate that can be detached therefrom, from the pre-presses to the central press, which works independently of the working rhythm of these pre-presses, on one or more arbitrarily oriented tracks, possibly with intermediate storage and the containers are taken over by the central press in any order, after the finished pressing of the goods in the container by means of a press ram, the casing part of the container is completely removed from the bale while maintaining the pressing pressure and the bale is then packed, e.g.
  • a method of this type is known from EP 0 014 923 B1. It has the essential advantage that the number of pre-presses which work together with a final pressing station is not limited to a certain number. The pre-pressing and the final pressing station work independently of each other. This also makes it possible to press fiber flake as well as cable material or different fiber types in succession in the central press without the fiber material of the previous batch being able to mix with the following one. The final pressing station can be better utilized.
  • Packing and armoring in a location separate from the pressing station is advantageous because it can increase the performance of the central press, but disadvantageous is the lateral displacement of the bale under pressure into a pure holding station, which involves additional design effort. It is also disadvantageous that the base plate of the press box must be removed from the press station together with a separate end piece of the press ram and must necessarily be moved back into the press station in order to return to the press ram as far as the end piece is concerned and to the press box jacket. as for the bottom plate to be united. This process in the central press takes time and hinders optimal utilization of the central press.
  • the invention is based on the object of first developing a method and then also a suitable device with which a central press can be operated in which the problems listed no longer occur. It is essential to increase the production output of a central press, whereby neither the pressing process may be hindered by the necessary packaging and arming or bandaging time, nor the bale together with a separate part of the press ram that can be detached from the press ram and is transported to a separate, laterally arranged holding position may be.
  • a process of this kind brings about an immense increase in performance.
  • the new process is focused on the process that the once compressed bale always remains in the unchanged, optimal pressing condition under the ram until it is ejected after the bandaging, in any case travels into the bandaging station and possibly also into the packaging station, in a circular path that leads back to the press station.
  • the packaging and bandaging station are thus reached on a circle after bypassing 120 ° or - if the packaging station is not under the press ram - after having been bypassed by 180 °. In this way there is enough space for the device parts that are necessary for bandaging and also for packaging.
  • the central press of FIG. 1 consists of a star-shaped pressing device with the pressing units or pressing stations I - III, which are all the same, and are designed so that they can carry out the final pressing process.
  • Each unit I - III thus consists of a complete press that accepts the press box, lock it, the fiber material filled in the pre-press, not shown, if necessary, also provide a packaging film on the top of the press box, press it in the same press box jacket with a press ram and possibly can finally compress and which can pull the press box casing upwards from the bale in the press state, the press box base plate, of course, having been released beforehand from the casing in its locking.
  • the pressing units I - III stand on a base plate 5, over which the units I - III can be moved in a circular manner in the direction of the arrows 6, 6 ', 6''.
  • z. B the illustrated bearing 3 or other sliding devices.
  • the pressing units I - III are U-shaped in the example with a lateral opening, what z. B. has the advantage that the new, full press box does not have to be inserted radially into the central press, but also laterally, tangentially.
  • FIG. 1 From Fig. 1 it can be seen that the central press according to the invention is approached tangentially from the feeder line (full cans).
  • the pre-pressed fiber material comes from the respective pre-press in a press box 9, 10 and is in any case also covered with a packaging film 1 on the upper side before the central press.
  • the top view of the film placement device is only schematically indicated in FIG. 1, but is known in detail.
  • the press box 9, 10 moves by means of the carriage 35 on the rails 36 further in the direction of arrow 7 and ultimately continues straight into the press unit 1 free from a bale 8, better from an empty press box (jacket 9 + base plate 10)
  • Rails 36 go straight on to the removal rails 36 ', but the carriage 35 will remain next to the press unit I so that the press box can be transferred from there. This is done e.g. B. by means of a chain conveyor, not shown, which alone moves the press box into the pressing position.
  • the now empty carriage 35 travels back to take over a further full press box which is ready. Because of the continuous rails 36, it is advantageously possible to remove a defective press box or an unsatisfactorily filled press box from the press area without disturbing the press work of the entire machine.
  • the bale 8 reaches the packaging station, which is designated II in FIG. 1, after the central press has been rotated through 120 °. It is intended to express that z. B. the removal of the press casing 9 from the bale 8 does not have to take place in the press situation shown in Fig. 1, but z. B. can also be carried out when rotating the central press about the axis 4. This approach is one of the main advantages of new central press, time is saved in each of the absolutely necessary movement processes.
  • the final pressing process can also take place only in part up to a final preliminary pressing state.
  • the press box jacket 9 z. B. when turning the central press about the axis 4 to the packing station II upwards and at the same time the fiber material is pressed by increasing the pressure by means of the cylinder 13 '.
  • This procedure favors the easier removal of the press box casing 9 from the bale 8 and also prevents damage to the fibers of the bale in contact with the casing 9.
  • this careful pressing process advantageously does not increase the treatment time of a bale in the central press.
  • both the base film 2 and the cover film 1 are applied to the side surfaces of the bale 8 'by means of fingers (not shown). These details are known and are therefore not shown or described here. So if the top and bottom films 1, 2 are applied to the bale 8 ', for. B. performed on the way from the pressing station I to station II, the shrouds 15, 16 move parallel to the long sides of the bale 8 'over. For this purpose, rails 15 ', 16' are provided which move parallel to the bale 8 'and are moved back again after packing.
  • the shrouds 15, 16 pull the previously stretched (dashed line 17) film 14 (solid line) from the two film rolls 18, 19, which are rotatably but fixedly arranged tangentially outside the central press. Then, on the radially inner rear side of the bale 8 ', pressure cylinders 20, 21 of the sheathing units 15, 16 move the film holding devices 22 against one another. The sides of the film are welded together so that the jacket is produced. After moving the shrouds 15, 16 back into the starting situation, a new stretched film wall 17 is produced.
  • the bale 8 'packed with it is now still to be bandaged, e.g. B. with wires or strips 28.
  • the central press moves according to FIG. 1 by a further 120 ° in the direction of arrow 6 'in the situation of unit III, the bandaging station.
  • a bandaging device arranged tangentially outside the press, which is also shown in a top view in FIG. 4. It consists of two arms 23, 24 (dash-dotted line) held open tangentially to the press, of which the arm 23 carries the deflection channels 29 for the straps and the arm 24 carries the strapping heads 25. Both arms 23, 24 are pivotable about the axis 27.
  • the arms 23, 24 then open again, the press ram 13, 13 'moves upwards into the rest position and an arm takes the fully packaged bale 8' 'into the tangential line. For space reasons, this is expediently carried out on the arm 23.
  • the transport from the bandaging position to the removal position takes place with a bale clamp construction. It consists of a U-shaped arm 23, which has a holding leg 26 at the free end, which includes the bale 8 '' U-shaped.
  • two pressure stamps 31, 32 which are fastened to the arm 23 and the holding leg 26 in a radially aligned manner with respect to one another, the bale 8 ′′ is held on the end face on both sides and can be pivoted with the arm 23.
  • bale 8 '' '' After swiveling the bale 8 '' into the tangential line, the locking of the bale 8 '' 'is released by the pressure rams 31, 32 and the arm 23 pivots further outwards to completely release the bale 8' ''.
  • a further bale clamp construction 33, 34 then grips the bale 8 ′′ ′′ and moves it suspended to a bale removal path according to FIG. 5.
  • the bale 8 '' '' can also be pushed onto the web 30, depending on the application.
  • the central press moves again through 120 ° into the starting position according to FIG. 1.
  • the base plate 10 is again provided with a new base film 2 and combined with the box jacket 9 to be lowered.
  • the film placement device is chemically indicated in Fig. 1 in the top view.
  • the empty can that is ready for transportation is also conveyed from the press unit I to the by means of a chain conveyor, not shown stand by carriage 35 'further in the direction of tangents 7'. This then brings the empty press box to the pre-presses, not shown, or transfers the press box to another transport device while it moves back into the waiting position at the press.
  • the press unit I is again equipped with a press box full of fibers.
  • the transport of the press boxes by means of a carriage 35, 35 'can also be constructed differently, e.g. B. only with a hanging conveyor, so that the carriage 35 with the rails 36 can be omitted.
  • FIG. 6 shows a further central press, which is smaller than that shown in FIG. 1.
  • the main difference to that of Fig. 1 is the outsourcing of the packaging station II previously provided within the circular path of the central press to the packaging station IV. This is now arranged outside the circular rotating path of the central press and of course only active when the bale 8 '' in the Station III is bandaged.
  • This version is only possible if the bale 8 '' is strapped with a band or wire material that does not react with the bale material, such as man-made fibers. B. rusts.
  • the tape is then essentially made of plastic, for. B. made of polyester or polyamide fibers. If such strapping material, which is also more environmentally friendly, can be used, the packaging is considerably easier to organize.
  • the bale is bathed only under the pressure of the central press and then packed outside the central press at any point and in the manner of packaging, e.g. B. by a simple shrink film.
  • the bathing station III which is only provided in addition to the pressing station I, is reached after the central press has been rotated through 180 °.
  • the bandaging station III functions as described above under FIG. 4.
  • the bale 8 v which can now be displaced, is then moved into position 8 ′′ ′′ after being pivoted out, through a film curtain 17 which is only responsible for the lower third.
  • the film curtain is tensioned between the rollers 18, 19 as described under FIG. 3 and the shroud folding units 15, 16 place and fasten the sheath firmly around the passing bale 8 v .
  • At this or another location can also be arranged another packaging device for the bale, for. B. one that slips over the bale 8 v a shrink film 17 ', 17'', which is then shrunk for tight wrapping by heat generation in the shrink oven 37 on the bale 8 v .
  • FIG. 7 It is also conceivable, according to FIG. 7, to prematurely lay the floor packaging blank 2, which is placed on the base plate 10 with the base plate 10 by the method defined above before finally reconnecting the press box casing 9 (see feature d) of the first claim), and also to save the laying of the blank blank 1 on the bale 8. For this reason, the corresponding devices for the films 1 and 2 are missing in FIG. 7. If the complete packaging can be organized outside of the press after the bandaging according to FIG. 7, the underside of the bale can also be used later in the pressing and packaging process be covered with a blank of packaging. An example of this is shown in FIG. 7. There, the shrink film 17 'is placed around the bale 8 v as before.
  • the same device with the film rolls 18 'and 19' is perpendicular to the device with the film rolls 18, 19 and places a further shrink film 17 '' when the bale 8 v moves forward on the other sides of the bale 8 v and then in the shrink oven 37 to proceed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Basic Packing Technique (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zum Verpacken von faserigem Gut in Ballen durch mehrstufiges Verpressen mit mehreren Vorpressen, bei dem das in kastenförmigen, türlosen, stabilen Behältern vorgepreßte Gut zu einer Zentralpresse befördert wird, in der das vorgepreßte Gut jeweils zu einem Ballen fertig verpreßt und anschließend verpackt wird, indem die mit dem faserigen Gut gefüllten, aus einem einstückigen Mantelteil und einer davon lösbaren Bodenplatte bestehenden Behälter von den Vorpressen zu der vom Arbeitsrhythmus dieser Vorpressen unabhängig arbeitenden Zentralpresse auf einer oder mehreren beliebig gerichteten Bahnen, ggf. unter Zwischenlagerung, befördert und die Behälter von der Zentralpresse in beliebiger Reihenfolge übernommen werden, nach dem Fertigpressen des Gutes im Behälter mittels eines Preßstempels der Mantelteil des Behälters unter Aufrechterhaltung des Preßdruckes von dem Ballen vollständig entfernt und dann der Ballen verpackt wird, z. B. durch Umhüllen des Ballens mit einer Folie und Bandagieren mit einem linienförmigen Schnürmittel, sowie nach Zurückfahren des Preßstempels aus der Zentralpresse entfernt wird, und der positioniert gehaltene Mantelteil noch in der Zentralpresse - zum Rücktransport des Behälters auf einer oder mehreren beliebig gerichteten Bahnen - mit einer Bodenplatte wieder vereinigt wird.The invention relates to a method for packaging fibrous material in bales by multi-stage pressing with multiple pre-presses, in which the pre-pressed in box-shaped, doorless, stable containers is conveyed to a central press, in which the pre-pressed material is pressed into a bale and is then packed by transporting the containers filled with the fibrous material, consisting of a one-piece jacket part and a base plate that can be detached therefrom, from the pre-presses to the central press, which works independently of the working rhythm of these pre-presses, on one or more arbitrarily oriented tracks, possibly with intermediate storage and the containers are taken over by the central press in any order, after the finished pressing of the goods in the container by means of a press ram, the casing part of the container is completely removed from the bale while maintaining the pressing pressure and the bale is then packed, e.g. B. by wrapping the bale with a film and bandaging with a line-shaped lacing, and after moving back the ram from the central press, and the positioned jacket part still in the central press - for returning the container on one or more arbitrarily oriented tracks - with a bottom plate is reunited.

Ein Verfahren dieser Art ist durch die EP 0 014 923 B1 bekannt. Es hat den wesentlichen Vorteil, daß die Zahl der Vorpressen, die mit einer Endverpreßstation zusammenarbeiten, nicht auf eine gewisse Zahl beschränkt ist. Vorpressen und Endverpreßstation arbeiten unabhängig voneinander. Damit ist es auch ermöglicht, in der Zentralpresse sowohl Faserflocke, als auch Kabelmaterial oder unterschiedliche Fasertypen hintereinander zu verpressen, ohne daß sich Fasermaterial der vorhergehenden Charge mit der nachfolgenden vermischen kann. Die Endverpreßstation kann besser ausgelastet werden.A method of this type is known from EP 0 014 923 B1. It has the essential advantage that the number of pre-presses which work together with a final pressing station is not limited to a certain number. The pre-pressing and the final pressing station work independently of each other. This also makes it possible to press fiber flake as well as cable material or different fiber types in succession in the central press without the fiber material of the previous batch being able to mix with the following one. The final pressing station can be better utilized.

Aus der gleichen Schrift ist es bekannt, die Verpackung und Armie- oder Bandagierung unter dem Preßstempel durchzuführen. Dies hat den Nachteil, daß die Preßstation während der Verpackungsvorganges für einen weiteren Preßvorgang blockiert ist. Die Leistung Ballen pro Stunde pro Zentralpresse ist stark beschränkt. Um diesen Nachteil zu bessern, ist in der EP 0 029 977 B1 vorgeschlagen, den verpreßten, aber noch unter Preßdruck stehenden Ballen zusammen mit der Bodenplatte des Preßkastens und einem Endstück des Preßstempels in eine seitlich gelagerte Haltestation zu befördern, wobei der Preßdruck, die Preßhöhe des Ballens höchstens geringfügig zunehmen darf. In dieser seitlichen Haltestation kann dann ungehindert der Verpackungsvorgang und auch die Armierung vorgenommen werden, während in der Preßstation ein weiterer Ballen verpreßt werden kann. Die seitlich gelagerte Haltestation kann sich kreisförmig an die Preßstation oder in einem oder zwei seitlich angeordneten Verpackungsarmen anschließen.From the same document it is known to carry out the packaging and arming or bandaging under the press ram. This has the disadvantage that the pressing station is blocked for a further pressing process during the packaging process. The hourly bale output per central press is severely limited. In order to alleviate this disadvantage, it is proposed in EP 0 029 977 B1 to convey the compressed but still pressurized bale together with the base plate of the press box and an end piece of the press ram into a laterally mounted holding station, the pressing pressure being the pressing height of the bale may increase slightly at most. The packaging process and the reinforcement can then be carried out unhindered in this lateral holding station, while another bale can be pressed in the pressing station. The laterally mounted holding station can connect in a circle to the pressing station or in one or two packaging arms arranged on the side.

Das Verpacken und Armieren in einer von der Preßstation getrennten Örtlichkeit ist von Vorteil, weil dadurch die Leistung der Zentralpresse erhöht werden kann, nachteilig ist aber die seitliche Verschiebung des unter Preßdruck stehenden Ballens in eine reine Haltestation, die zusätzlichen konstruktiven Aufwand beinhaltet. Es ist auch von Nachteil, daß die Bodenplatte des Preßkastens zusammen mit einem gesonderten Endstück des Preßstempels aus der Preßstation entfernt und notgedrungen wieder zurück in die Preßstation gefahren werden muß, um dort wieder mit dem Preßstempel, was das Endstück anbetrifft, und mit dem Preßkastenmantel, was die Bodenplatte anbetrifft, vereinigt zu werden. Dieser Arbeitsvorgang in der Zentralpresse kostet Zeit und behindert eine optimale Auslastung der Zentralpresse.Packing and armoring in a location separate from the pressing station is advantageous because it can increase the performance of the central press, but disadvantageous is the lateral displacement of the bale under pressure into a pure holding station, which involves additional design effort. It is also disadvantageous that the base plate of the press box must be removed from the press station together with a separate end piece of the press ram and must necessarily be moved back into the press station in order to return to the press ram as far as the end piece is concerned and to the press box jacket. as for the bottom plate to be united. This process in the central press takes time and hinders optimal utilization of the central press.

Der Erfindung liegt die Aufgabe zugrunde, zunächst ein Verfahren und dann auch eine dazu passende Vorrichtung zu entwickeln, mit dem eine Zentralpresse betrieben werden kann, in der die aufgezählten Probleme nicht mehr auftreten. Wesentlich ist, die Produktionsleistung einer Zentralpresse zu erhöhen, wobei weder der Preßvorgang durch die notwendige Verpackungs- und Armie- oder Bandagierungszeit behindert werden darf, noch der Ballen zusammen mit einem gesonderten, vom Preßstempel lösbaren Teil des Preßstempels in eine gesonderte, seitlich angeordnete Halteposition transportiert werden darf.The invention is based on the object of first developing a method and then also a suitable device with which a central press can be operated in which the problems listed no longer occur. It is essential to increase the production output of a central press, whereby neither the pressing process may be hindered by the necessary packaging and arming or bandaging time, nor the bale together with a separate part of the press ram that can be detached from the press ram and is transported to a separate, laterally arranged holding position may be.

Ausgehend von dem Verfahren anfangs genannter Art ist zur Lösung der gestellten Aufgabe vorgesehen, daß

  • a) der Behälter in die Preßstation der Zentralpresse verfahren, dort arretiert, spätestens jetzt - im Falle der Verpackung unter dem Preßstempeldruck - die Oberseite des Behälters oder die Unterseite des Preßstempels mit einem Decken-Verpackungsmittelzuschnitt versehen, das faserige Gut mittels des Preßstempels verpreßt und anschließend der Mantelteil von der Bodenplatte und dem Ballen entfernt wird, dann
  • b) die aus mindestens zwei vollständigen gleichmäßig um eine Mittelachse verteilt angeordneten Preßeinheiten bestehende Zentralpresse um ihre Mittelachse gedreht wird und dabei die Verpackungs- und/oder Bandagierungsstation auf einem Kreis nach Umfahren von jeweils einem Winkel von vorzugsweise =>120° erreicht werden, wobei
  • c) der weiterhin unter Preßdruck stehende Ballen zusammen mit dem Preßstempel auf einer kreisförmigen Bahn in die Verpackungs- und/oder Bandagierungsstation verfahren wird, in der einerseits - im Falle der Verpackung unter dem Preßstempeldruck - die Seitenflächen des Ballens zumindest mit den überstehenden Rändern eines Boden- und des Decken-Verpackungsmittelzuschnitts bedeckt und ggf. zusätzlich mit einem Mantel-Verpackungsmittelzuschnitt umwickelt werden, und/oder
  • d) andererseits der unter Preßdruck stehende Ballen mehrfach mit Bändern oder Drähten umwickelt und anschließend der fertig verpackte bzw. der nur bandagierte Ballen von dem Druck des Preßstempels befreit und aus der Zentralpresse hinausbewegt wird, und dann
  • e) innerhalb der Zentralpresse die nun von dem Ballen befreite Bodenplatte ggf. erneut mit dem Boden-Verpackungsmittelzuschnitt versehen, jedenfalls der positioniert gehaltene Mantelteil des Behälters wieder mit der Bodenplatte vereinigt und dabei oder vorher zusammen mit dem Preßstempel auf der kreisförmigen Bahn in der gleichen Drehrichtung in die vorherige Preßstation nach a) verfahren wird, und dann
  • f) außerhalb der Zentralpresse im Falle eines noch nicht verpackten Ballens der Ballen in eine Verpackungsstation verfahren wird.
On the basis of the method mentioned at the outset, it is provided that
  • a) move the container into the press station of the central press, lock it there, at the latest now - in the case of packaging under the ram pressure - provide the top of the container or the underside of the ram with a blanket packaging material blank, press the fibrous material by means of the ram and then the shell part is removed from the base plate and the bale, then
  • b) the central press, consisting of at least two complete press units evenly distributed around a central axis, is rotated about its central axis and the packaging and / or bandaging station are reached on a circle after bypassing an angle of preferably => 120 °, whereby
  • c) the bale, which is still under pressure, is moved together with the ram on a circular path into the packaging and / or bandaging station, in which, in the case of packaging under ram pressure, the side surfaces of the bale, at least with the protruding edges of a base - and the blanket blank of the packaging are covered and, if necessary, additionally wrapped with a blank blank of the packaging, and / or
  • d) on the other hand, the pressurized bale is wrapped several times with tapes or wires and then the completely packed or only bandaged bale is released from the pressure of the press ram and moved out of the central press, and then
  • e) within the central press, the base plate now freed from the bale, if necessary, again provided with the base packaging cut, in any case the positioned jacket part of the container is reunited with the base plate and thereby or previously together with the press ram on the circular path in the same direction of rotation is moved to the previous press station according to a), and then
  • f) the bale is moved to a packing station outside the central press in the case of a bale that has not yet been packed.

Ein Verfahren dieser Art bewirkt eine immense Leistungssteigerung. Es ist zwar - bezüglich der notwendigen Vorrichtung - eine Zentralpresse mit mindestens zwei Preßstationen zu bauen, um das erfindungsgemäße Verfahren durchführen zu können, jedoch entfallen erhebliche Konstruktiondetails der vorbekannten Vorrichtung, die die Vorrichtung verkomplizierten und verteuerten. Das neue Verfahren konzentriert sich auf den Vorgang, daß der einmal verpreßte Ballen bis zum Ausstoß jedenfalls nach der Bandagierung stets in unverändertem, optimalen Preßzustand unter dem Preßstempel verbleibt, dabei jedenfalls in die Bandagierungsstation und ggf. auch in die Verpackungsstation verfährt, und zwar in einem kreisförmigen Weg, der zurück in die Preßstation führt.A process of this kind brings about an immense increase in performance. With regard to the necessary device, it is necessary to build a central press with at least two press stations in order to be able to carry out the method according to the invention, but considerable construction details of the previously known device which make the device complicated and expensive are omitted. The new process is focused on the process that the once compressed bale always remains in the unchanged, optimal pressing condition under the ram until it is ejected after the bandaging, in any case travels into the bandaging station and possibly also into the packaging station, in a circular path that leads back to the press station.

Beim Verfahren nach der Erfindung werden also die Verpackungs- und Bandagierstation auf einem Kreis jeweils nach Umfahren von 120° oder - wenn die Verpackungsstation unter dem Preßstempel entfällt - nach Umfahren von 180° erreicht. Auf diese Weise ist genügend Platz für die Vorrichtungsteile, die zur Bandagierung und auch zur Verpackung notwendig sind.In the method according to the invention, the packaging and bandaging station are thus reached on a circle after bypassing 120 ° or - if the packaging station is not under the press ram - after having been bypassed by 180 °. In this way there is enough space for the device parts that are necessary for bandaging and also for packaging.

Besonders günstig ist es, wenn die Zentralpresse tangential von den mit dem vorgepreßten faserigem Gut gefüllten Preßbehältern angefahren und die leeren Behälter (Mantelteil + Bodenplatte) in derselben Tangentialen von der Zentralpresse abtransportiert werden. Dies bewirkt eine einfache, platzsparende und klare Linienführung beim Transport der Preßkästen.It is particularly favorable if the central press is approached tangentially by the press containers filled with the pre-pressed fibrous material and the empty containers (jacket part + base plate) are transported away from the central press in the same tangent. This results in simple, space-saving and clear lines when transporting the press boxes.

Die zur Durchführung des Verfahrens notwendige Vorrichtung geht aus von dem Pressensystem, wie es in der EP 0 014 923 B1 beschrieben ist. Es besteht im wesentlichen aus mehreren mit je einer Ablageeinrichtung versehenen Vorpressen und einer unabhängig aufgestellten und unabhängig von deren Arbeitsrhythmus betreibbaren Zentralpresse, die mit einem Preßstempel und Bewegungseinrichtungen zum Abziehen des türlosen Preßkastenmantels vom Ballen versehen ist. Bei diesem System wird mit Vorteil das Gut in je einem kastenförmigen Behälter vorgepreßt, von der Vorpresse abgeliefert und mittels Transportmitteln zum Fertigpressen und Verpacken auf einer beliebig gerichteten Bahn der Zentralpresse zugeführt und die leeren Behälter werden nach Abliefern der Ballen zu den Vorpressen zurückgeführt. Die Zentralpresse besteht erfindungsgemäß dann aus mindestens zwei, ggf. drei vollständigen gleichmäßig um eine Mittelachse verteilt angeordneten Preßeinheiten, die radial von der Mittelachse nach außen gerichtet angeordnet und um diese Mittelachse drehbar gelagert sind, und wobei die eigentliche Preßstation, die Bandagierungsstation und ggf. die Verpackungsstation um jeweils einen Winkel von 120° oder 180° entfernt um die Mittelachse angeordnet sind. Diese Zentralpresse ermöglicht ein schnelles, unkompliziertes, automatisch durchgeführtes Bandagieren und auch Verpacken. Es ist damit eine Taktzeit erreichbar, die bei der Vorrichtung nach dem Stande der Technik unvorstellbar ist.

Fig. 1
die Zentralpresse in der Draufsicht mit drei Bearbeitungsstationen, sprich Preßeinheiten,
Fig. 2
die Zentralpresse in der Seitenansicht entlang der Schnittlinie A - A der Fig. 1 in der Preßstation (oder auch in der Verpackungsstation), nachdem der Preßkastenmantel von dem verpreßten Ballen nach oben abgezogen ist,
Fig. 3
in vergrößerter Darstellung die Zentralpresse in der Einzelheit der Verpackungsstation beim Umlegen der Mantelfolie,
Fig. 4
in vergrößerter Darstellung die Zentralpresse in der Einzelheit der Armierungsstation mit auch der Auswurfsituation des verpackten Ballens,
Fig. 5
eine Greifvorrichtung für den Abtransport des verpackten Ballens mit Hängetransport,
Fig. 6
eine gegenüber der Zentralpresse nach Fig. 1 unterschiedliche Zentralpresse in der Draufsicht mit nur zwei Bearbeitungsstationen, sprich Preßeinheiten und
Fig. 7
eine Zentralpresse wie in Fig. 6 mit einer anderen Verpackungsstation.
The device required to carry out the method is based on the press system as described in EP 0 014 923 B1. It essentially consists of several pre-presses, each with a storage device, and an independently installed central press, which can be operated independently of its working rhythm, and which is provided with a press ram and movement devices for removing the doorless press box casing from the bale. With this system, the goods are advantageously pre-pressed in a box-shaped container, delivered by the pre-press and conveyed to the central press by means of transport for pre-pressing and packaging in any directional path, and the empty containers are returned to the pre-press after delivery of the bales. According to the invention, the central press then consists of at least two, possibly three, complete press units which are evenly distributed around a central axis, are arranged radially outward from the central axis and are rotatably mounted about this central axis, and the actual press station, the bandaging station and possibly the Packaging station are arranged at an angle of 120 ° or 180 ° away around the central axis. This central press enables fast, uncomplicated, automatically carried out bandaging and packaging. A cycle time can thus be achieved which is inconceivable with the device according to the prior art.
Fig. 1
the central press in plan view with three processing stations, i.e. press units,
Fig. 2
1 in the press station (or also in the packaging station) after the press box casing has been pulled off the pressed bale upwards,
Fig. 3
in an enlarged view the central press in the detail of the packaging station when folding the jacket film,
Fig. 4
in an enlarged view the central press in the detail of the reinforcement station with the ejection situation of the packed bale,
Fig. 5
a gripping device for the removal of the packed bale with hanging transport,
Fig. 6
a compared to the central press of FIG. 1 different central press in plan view with only two processing stations, that is press units and
Fig. 7
a central press as in Fig. 6 with another packaging station.

Die Zentralpresse nach Fig. 1 besteht aus einer sternförmig ausgerichteten Preßvorrichtung mit den Preßeinheiten bzw. Preßstationen I - III, die alle gleich, und zwar so ausgebildet sind, daß sie den Endpreßvorgang durchführen können. Jede Einheit I - III besteht also aus einer vollständigen Presse, die den Preßkasten annehmen, arretieren, das in der nicht dargestellten -Vorpresse eingefüllte Fasermaterial ggf. auch auf der Oberseite des Preßkastens mit einer Verpackungsfolie versehen, in demselben Preßkastenmantel mit einem Preßstempel verpressen und evtl. endverpressen kann und die den Preßkastenmantel von dem im Preßzustand befindlichen Ballen nach oben abziehen kann, wobei selbstverständlich die Preßkasten-Bodenplatte vorher vom Mantel in ihrer Arretierung gelöst worden ist.The central press of FIG. 1 consists of a star-shaped pressing device with the pressing units or pressing stations I - III, which are all the same, and are designed so that they can carry out the final pressing process. Each unit I - III thus consists of a complete press that accepts the press box, lock it, the fiber material filled in the pre-press, not shown, if necessary, also provide a packaging film on the top of the press box, press it in the same press box jacket with a press ram and possibly can finally compress and which can pull the press box casing upwards from the bale in the press state, the press box base plate, of course, having been released beforehand from the casing in its locking.

Von diesen Einheiten, von denen aus Fig. 2 eine in der Seitenansicht zu sehen ist, sind also drei sternförmig um eine Drehachse 4 mit gleichem Abstand angeordnet, so daß sich zwischen den Bearbeitungsstationen ein Fahrwinkel von 120° ergibt. Die Preßeinheiten I - III stehen auf einer Grundplatte 5, über die die Einheiten I - III in Richtung der Pfeile 6, 6', 6'' kreisförmig verfahren werden können. Dazu dient z. B. das dargestellte Lager 3 oder andere Gleiteinrichtungen. Die Preßeinheiten I - III sind im Beispiel mit seitlicher Öffnung U-förmig ausgebildet, was z. B. den Vorteil hat, daß der neue, volle Preßkasten nicht radial in die Zentralpresse eingefahren werden muß, sondern auch seitlich, tangential.Of these units, one of which can be seen in the side view from FIG. 2, three are arranged in a star shape around an axis of rotation 4 at the same distance, so that there is a travel angle of 120 ° between the processing stations. The pressing units I - III stand on a base plate 5, over which the units I - III can be moved in a circular manner in the direction of the arrows 6, 6 ', 6''. For this purpose, z. B. the illustrated bearing 3 or other sliding devices. The pressing units I - III are U-shaped in the example with a lateral opening, what z. B. has the advantage that the new, full press box does not have to be inserted radially into the central press, but also laterally, tangentially.

Aus Fig 1 ist insofern ersichtlich, daß die Zentralpresse nach der Erfindung von der Zubringerstraße (volle Kannen) tangential angefahren wird. Von der jeweiligen Vorpresse kommt also das vorgepreßte Fasermaterial in einem Preßkasten 9, 10 und wird jedenfalls vor der Zentralpresse auch auf der Oberseite mit einer Verpackungsfolie 1 bedeckt. Die Folienbestückungsvorrichtung ist in Fig. 1 in der Aufsicht nur 5 schematisch angedeutet, im einzelnen aber bekannt. Dann fährt der Preßkasten 9, 10 mittels des Wagens 35 auf den Schienen 36 weiter in Richtung des Pfeiles 7 und gelangt geradlinig weiter letztlich in die von einem Ballen 8, besser von einem leeren Preßkasten (Mantel 9 + Bodenplatte 10) freie Preßeinheit I. Die Schienen 36 gehen zwar ununterbrochen gerade weiter bis zu den Abtransportschienen 36', jedoch wird der Wagen 35 neben der Preßeinheit I verweilen, damit von dort der Preßkasten übergeben werden kann. Dies erfolgt z. B. mittels einer nicht dargestellten Kettenförderung, die allein den Preßkasten in die Preßposition bewegt. Der nunmehr leere Wagen 35 fährt zurück zur Übernahme eines bereitstehenden weiteren vollen Preßkastens. Aufgrund der durchlaufenden Schienen 36 ist es mit Vorteil möglich, auch mal einen defekten Preßkasten oder einen nicht zufriedenstellend gefüllten Preßkasten wieder aus dem Preßbereich zu entfernen, ohne daß die Preßarbeit der Gesamtmaschine gestört wird.From Fig. 1 it can be seen that the central press according to the invention is approached tangentially from the feeder line (full cans). The pre-pressed fiber material comes from the respective pre-press in a press box 9, 10 and is in any case also covered with a packaging film 1 on the upper side before the central press. The top view of the film placement device is only schematically indicated in FIG. 1, but is known in detail. Then the press box 9, 10 moves by means of the carriage 35 on the rails 36 further in the direction of arrow 7 and ultimately continues straight into the press unit 1 free from a bale 8, better from an empty press box (jacket 9 + base plate 10) Rails 36 go straight on to the removal rails 36 ', but the carriage 35 will remain next to the press unit I so that the press box can be transferred from there. This is done e.g. B. by means of a chain conveyor, not shown, which alone moves the press box into the pressing position. The now empty carriage 35 travels back to take over a further full press box which is ready. Because of the continuous rails 36, it is advantageously possible to remove a defective press box or an unsatisfactorily filled press box from the press area without disturbing the press work of the entire machine.

Es folgt nun der Preßvorgang mittels des Preßstempel 13 und seinen Druckzylindern 13'. Nach dem Verpressen wird der Preßkastenmantel 9 gemäß Fig. 2 von seitlich an jeder Preßeinheit I - III angeordneten, auch aus Fig. 1 ersichtlichen Zugzylindern 11, 12 nach oben abgezogen, so daß der Ballen 8 nur von oben mit dem Preßstempel 13 und unten mit der Bodenplatte 10 bedeckt, aber ansonsten frei zugänglich ist.There follows the pressing process by means of the press ram 13 and its pressure cylinders 13 '. After pressing, the press box casing 9 according to FIG. 2 is pulled upwards from the side of each press unit I - III, also shown in FIG. 1, pulling cylinders 11, 12, so that the bale 8 only from above with the press ram 13 and below the bottom plate 10 covered, but is otherwise freely accessible.

In diesem Zustand erreicht der Ballen 8 nach Drehen der Zentralpresse um 120° die Verpackungsstation, die in der Fig. 1 mit II bezeichnet ist. Es soll damit zum Ausdruck gebracht werden, daß z. B. das Abziehen des Preßkastenmantels 9 vom Ballen 8 nicht in der in Fig. 1 dargestellten Pressen-Situation erfolgen muß, sondern z. B. auch beim Drehen der Zentralpresse um die Achse 4 durchgeführt werden kann. Diese Vorgehensweise ist einer der wesentlichen Vorteile der neuen Zentralpresse, es wird Zeit in jeder der unbedingt notwendigen Bewegungsvorgänge eingespart.In this state, the bale 8 reaches the packaging station, which is designated II in FIG. 1, after the central press has been rotated through 120 °. It is intended to express that z. B. the removal of the press casing 9 from the bale 8 does not have to take place in the press situation shown in Fig. 1, but z. B. can also be carried out when rotating the central press about the axis 4. This approach is one of the main advantages of new central press, time is saved in each of the absolutely necessary movement processes.

Es ist auch möglich, den Hauptpreßvorgang zu unterteilen. In der Preßstation I kann der Endpreßvorgang auch nur zu einem Teil bis zu einem Vorpreß-Endzustand erfolgen. Dann wird der Preßkastenmantel 9 z. B. beim Drehen der Zentralpresse um die Achse 4 zur Verpackungsstation II nach oben abgezogen und gleichzeitig das Fasermaterial durch Erhöhen des Preßdruckes mittels der Zylinder 13' verstärkt verpreßt. Diese Vorgehensweise begünstigt den leichteren Abzug des Preßkastenmantels 9 vom Ballen 8 und verhindert auch eine Beschädigung der mit dem Mantel 9 in Berührung befindlichen Fasern des Ballens. Jedenfalls erhöht mit Vorteil dieser vorsichtige Preßvorgang nicht die Behandlungszeit eines Ballens in der Zentralpresse.It is also possible to divide the main pressing process. In the pressing station I, the final pressing process can also take place only in part up to a final preliminary pressing state. Then the press box jacket 9 z. B. when turning the central press about the axis 4 to the packing station II upwards and at the same time the fiber material is pressed by increasing the pressure by means of the cylinder 13 '. This procedure favors the easier removal of the press box casing 9 from the bale 8 and also prevents damage to the fibers of the bale in contact with the casing 9. In any case, this careful pressing process advantageously does not increase the treatment time of a bale in the central press.

In der Verpackungsstation - hier vorgesehen an der Einheit II - ist gemäß Fig. 3 eine Vorrichtung stationär angeordnet, die für das Umlegen einer Mantelfolie 14 um den endverpreßten Ballen 8' vorgesehen ist. Vorher sind mittels nicht dargestellter Finger sowohl die Bodenfolie 2 und auch die Deckfolie 1 an die Seitenflächen des Ballens 8' angelegt. Diese Einzelheiten sind bekannt und deshalb hier nicht weiter dargestellt bzw. zu beschreiben. Wenn also die Deck- und Bodenfolien 1, 2 an den Ballen 8' angelegt sind, z. B. auf dem Wege von der Preßstation I zur Station II durchgeführt, verfahren die Mantelumlegungseinheiten 15, 16 parallel an den Längsseiten des Ballens 8' vorbei. Dazu sind Schienen 15', 16' vorgesehen, die parallel zum Ballen 8' verfahren und nach dem Verpacken wieder zurückgefahren werden. Die Mantelumlegungseinheiten 15, 16 ziehen die zuvor gestreckt gehaltene (gestrichelte Linie 17) Folie 14 (durchgezogene Linie) von den beiden Folienrollen 18, 19 ab, die drehbar, aber ortsfest tangential außerhalb der Zentralpresse angeordnet sind. Auf der radial innen liegenden Rückseite des Ballens 8' verfahren dann Druckzylinder 20, 21 der Mantelumlegungseinheiten 15, 16 die Folienhalteeinrichtungen 22 gegeneinander. Es erfolgt eine Verschweißung der Folienseiten miteinander, so daß der Mantel hergestellt ist. Nach Zurückverfahren der Mantelumlegungseinheiten 15, 16 in die Ausgangssituation wird eine neue gestreckt gehaltene Folienwand 17 hergestellt.In the packing station - provided here on the unit II - a device is arranged in a stationary manner according to FIG. Before this, both the base film 2 and the cover film 1 are applied to the side surfaces of the bale 8 'by means of fingers (not shown). These details are known and are therefore not shown or described here. So if the top and bottom films 1, 2 are applied to the bale 8 ', for. B. performed on the way from the pressing station I to station II, the shrouds 15, 16 move parallel to the long sides of the bale 8 'over. For this purpose, rails 15 ', 16' are provided which move parallel to the bale 8 'and are moved back again after packing. The shrouds 15, 16 pull the previously stretched (dashed line 17) film 14 (solid line) from the two film rolls 18, 19, which are rotatably but fixedly arranged tangentially outside the central press. Then, on the radially inner rear side of the bale 8 ', pressure cylinders 20, 21 of the sheathing units 15, 16 move the film holding devices 22 against one another. The sides of the film are welded together so that the jacket is produced. After moving the shrouds 15, 16 back into the starting situation, a new stretched film wall 17 is produced.

Der damit verpackte Ballen 8' ist nun noch zu bandagieren, z. B. mit Drähten oder Bändern 28. Dazu verfährt die Zentralpresse nach Fig. 1 um weitere 120° in Richtung des Pfeiles 6' in die Situation der Einheit III, der Bandagierungsstation. Dort wartet ebenfalls tangential außerhalb der Presse angeordnet eine Bandagierungsvorrichtung, die in der Fig. 4 ebenfalls in der Draufsicht dargestellt ist. Sie besteht aus zwei tangential zur Presse offen gehaltenen Armen 23, 24 (strichpunktierte Linie), von denen der Arm 23 die Umlenkkanäle 29 für die Bänder und der Arm 24 die Umreifungsköpfe 25 trägt. Beide Arme 23, 24 sind um die Achse 27 verschwenkbar. Nach Positionierung des Ballens 8'' in der Stellung der dargestellten Einheit III, nach Verschwenkung des Ballens um 120° um die Achse 4, klappen die Arme 23, 24 aus der gestreckten Ruhelage in die mit durchgezogenen Linien dargestellte Arbeitsstellung. Der Bandagierungsvorgang beginnt.The bale 8 'packed with it is now still to be bandaged, e.g. B. with wires or strips 28. For this purpose, the central press moves according to FIG. 1 by a further 120 ° in the direction of arrow 6 'in the situation of unit III, the bandaging station. There is also a bandaging device arranged tangentially outside the press, which is also shown in a top view in FIG. 4. It consists of two arms 23, 24 (dash-dotted line) held open tangentially to the press, of which the arm 23 carries the deflection channels 29 for the straps and the arm 24 carries the strapping heads 25. Both arms 23, 24 are pivotable about the axis 27. After positioning the bale 8 '' in the position of the unit III shown, after pivoting the bale by 120 ° about the axis 4, the arms 23, 24 fold out of the extended rest position into the working position shown with solid lines. The bandaging process begins.

Anschließend öffnen die Arme 23, 24 wieder, der Preßstempel 13, 13' verfährt in die Ruhestellung nach oben und ein Arm nimmt den fertig verpackten Ballen 8'' in die Tangentiale mit. Dies erfolgt aus Platzgründen zweckmäßigerweise am Arm 23 erfolgen. Der Transport aus der Bandagierungsstellung in die Abtransportstellung erfolgt mit einer Ballenklammerkonstruktion. Sie besteht aus einem U-förmigen Arm 23, der am freien Ende einen Halteschenkel 26 aufweist, der den Ballen 8'' U-förmig umfaßt. Mittels zweier Druckstempel 31, 32, die am Arm 23 und am Halteschenkel 26 radial gegeneinander ausgerichtet befestigt sind, ist der Ballen 8'' beidseitig stirnseitig festgehalten und mit dem Arm 23 verschwenkbar.The arms 23, 24 then open again, the press ram 13, 13 'moves upwards into the rest position and an arm takes the fully packaged bale 8' 'into the tangential line. For space reasons, this is expediently carried out on the arm 23. The transport from the bandaging position to the removal position takes place with a bale clamp construction. It consists of a U-shaped arm 23, which has a holding leg 26 at the free end, which includes the bale 8 '' U-shaped. By means of two pressure stamps 31, 32, which are fastened to the arm 23 and the holding leg 26 in a radially aligned manner with respect to one another, the bale 8 ″ is held on the end face on both sides and can be pivoted with the arm 23.

Nach Ausschwenken des Ballens 8'' in die Tangentiale wird die Arretierung des Ballens 8''' durch die Druckstempel 31, 32 gelöst und der Arm 23 verschwenkt weiter auswärts zur völligen Freigabe des Ballens 8'''. Dann ergreift eine weitere Ballen-Klammerkonstruktion 33, 34 den Ballen 8'''' hebt ihn an und verfährt ihn hängend gemäß der Fig. 5 zu einer Ballen-Abtransportbahn. Der Ballen 8'''' ist auch gleich auf die Bahn 30 schiebbar, je nach Anwendungsfall.After swiveling the bale 8 '' into the tangential line, the locking of the bale 8 '' 'is released by the pressure rams 31, 32 and the arm 23 pivots further outwards to completely release the bale 8' ''. A further bale clamp construction 33, 34 then grips the bale 8 ″ ″ and moves it suspended to a bale removal path according to FIG. 5. The bale 8 '' '' can also be pushed onto the web 30, depending on the application.

Während dieses Arbeitsvorganges verfährt die Zentralpresse wieder um 120° in die Ausgangsstellung gemäß Fig. 1. Es wird die Bodenplatte 10 wieder mit einer neuen Bodenfolie 2 versehen und mit dem abzusenkenden Kastenmantel 9 vereinigt werden. Die Folienbestückungsvorrichtung ist in Fig. 1 in der Aufsicht chematisch angedeutet. Die damit abtransportreife leere Kanne wird ebenfalls mittels einer nicht dargestellten Kettenförderung aus der Preßeinheit I zu dem bereitstehenden Wagen 35' weiter in Richtung der Tangentialen 7' verfahren. Dieser bringt dann den leeren Preßkasten zu den nicht dargestellten Vorpressen oder übergibt den Preßkasten an eine andere Transporteinrichtung, während er wieder zurück in die Warteposition an die Presse verfährt. Gleichzeitig wird die Preßeinheit I erneut mit einem mit Fasern vollen Preßkasten bestückt. Der Transport der Preßkästen mittels eine Wagens 35, 35' kann auch anders konstruiert sein, z. B. nur mit einer Hängeförderung, so daß der Wagen 35 mit den Schienen 36 entfallen können.During this operation, the central press moves again through 120 ° into the starting position according to FIG. 1. The base plate 10 is again provided with a new base film 2 and combined with the box jacket 9 to be lowered. The film placement device is chemically indicated in Fig. 1 in the top view. The empty can that is ready for transportation is also conveyed from the press unit I to the by means of a chain conveyor, not shown stand by carriage 35 'further in the direction of tangents 7'. This then brings the empty press box to the pre-presses, not shown, or transfers the press box to another transport device while it moves back into the waiting position at the press. At the same time, the press unit I is again equipped with a press box full of fibers. The transport of the press boxes by means of a carriage 35, 35 'can also be constructed differently, e.g. B. only with a hanging conveyor, so that the carriage 35 with the rails 36 can be omitted.

Dieser Gesammtarbeitsvorgang wird bei der erfindungsgemäßen Zentralpresse dreimal zur gleichen Zeit durchgeführt. Die Arbeitsleistung einer Presse ist damit so hoch wie bisher unerreicht.This overall operation is carried out three times at the same time in the central press according to the invention. The work performance of a press is thus unprecedented.

In Fig. 6 ist eine weitere, gegenüber der nach Fig. 1 verkleinerte Zentralpresse dargestellt. Der wesentliche Unterschied zu der nach Fig. 1 ist die Auslagerung der bisher innerhalb der kreisförmigen Bahn der Zentralpresse vorgesehenen Verpackungsstation II zur Verpackungsstation IV. Diese ist jetzt außerhalb der kreisförmigen Drehbahn der Zentralpresse angeordnet und natürlich erst tätig, wenn der Ballen 8'' in der Station III bandagiert ist. Diese Version ist nur möglich, wenn der Ballen 8'' mit einem Band- oder Drathmaterial umreift wird, das mit dem Ballenmaterial, wie Chemiefasern, keine Reaktion eingeht, also z. B. rostet. Im wesentlichen ist das Band dann aus Kunststoff, z. B. aus Polyester- oder Polyamidfasern hergestellt. Im Falle der Verwendbarkeit von solchem auch umweltschonenderen Umreifungsmaterial ist die Verpackung erheblich einfacher zu organisieren. Jetzt wird der Ballen nur unter dem Preßdruck der Zentralpresse badagiert und dann außerhalb der Zentralpresse an beliebiger Stelle und in der Art der Verpackung beliebig verpackt, z. B. durch eine einfache Schrumpffolie.6 shows a further central press, which is smaller than that shown in FIG. 1. The main difference to that of Fig. 1 is the outsourcing of the packaging station II previously provided within the circular path of the central press to the packaging station IV. This is now arranged outside the circular rotating path of the central press and of course only active when the bale 8 '' in the Station III is bandaged. This version is only possible if the bale 8 '' is strapped with a band or wire material that does not react with the bale material, such as man-made fibers. B. rusts. The tape is then essentially made of plastic, for. B. made of polyester or polyamide fibers. If such strapping material, which is also more environmentally friendly, can be used, the packaging is considerably easier to organize. Now the bale is bathed only under the pressure of the central press and then packed outside the central press at any point and in the manner of packaging, e.g. B. by a simple shrink film.

In der Fig. 6 ist die neben der Preßstation I nur noch vorgesehene Badagierstation III nach Drehung der Zentralpresse um 180° erreicht. Die Bandagierstation III funktioniert so wie oben unter Fig. 4 beschrieben. Anschließend wird der jetzt verschiebbare Ballen 8v nach Ausschwenken in die Stellung 8''' durch einen Folienvorhang 17 gefahren, der nur für die Bauchbinde zuständig ist. Der Folienvorhang ist wie unter Fig. 3 beschrieben zwischen den Rollen 18, 19 gespannt gehalten und die Mantelumlegungseinheiten 15, 16 legen und befestigen den Mantel fest um den vorbeifahrenden Ballen 8v. An dieser oder einer anderen Stelle kann auch eine andere Verpackungsvorrichtung für den Ballen angeordnet sein, z. B. eine solche, die über den Ballen 8v eine Schrumpffolie 17', 17'' stülpt, die anschließend zur festen Umschlingung durch Wärmeerzeugung in dem Schrumpfofen 37 auf den Ballen 8v geschrumpft wird.6, the bathing station III, which is only provided in addition to the pressing station I, is reached after the central press has been rotated through 180 °. The bandaging station III functions as described above under FIG. 4. The bale 8 v , which can now be displaced, is then moved into position 8 ″ ″ after being pivoted out, through a film curtain 17 which is only responsible for the lower third. The film curtain is tensioned between the rollers 18, 19 as described under FIG. 3 and the shroud folding units 15, 16 place and fasten the sheath firmly around the passing bale 8 v . At this or another location can also be arranged another packaging device for the bale, for. B. one that slips over the bale 8 v a shrink film 17 ', 17'', which is then shrunk for tight wrapping by heat generation in the shrink oven 37 on the bale 8 v .

Je nach Verpackungsart ist es gemäß Fig. 7 auch denkbar, das vorzeitige Verlegen des Boden-Verpackungsmittelzuschnitts 2, das nach dem oben definierten Verfahren vor dem abschließenden erneuten Verbinden des abzusenkenden Preßkastenmantels 9 mit der Bodenplatte 10 auf diese gelegt wird (siehe Merkmal d) des ersten Anspruchs), und auch das Verlegen des Deckenzuschnitts 1 auf den Ballen 8 zu ersparen. Aus diesem Grunde fehlen in der Fig. 7 die entsprechenden Vorrichtungen für die Folien 1 und 2. Wenn das vollständige Verpacken außerhalb der Presse nach dem Bandagieren gemäß Fig. 7 organisierbar ist, kann auch später im Verfahren des Preß-und Verpackungsvorganges die Unterseite des Ballens mit einem Verpackungsmittelzuschnitt bedeckt werden. Ein Beispiel dazu zeigt die Fig. 7. Dort wird die Schrumpffolie 17' wie gehabt um den Ballen 8v gelegt. Die gleiche Vorrichtung mit den Folienrollen 18' und 19' steht senkrecht zur Vorrichtung mit den Folienrollen 18, 19 und legt eine weitere Schrumpffolie 17'' beim Vorwärtsfahren des Ballens 8v auf die anderen Seiten des Ballens 8v, um anschließend in den Schrumpfofen 37 zu verfahren.Depending on the type of packaging, it is also conceivable, according to FIG. 7, to prematurely lay the floor packaging blank 2, which is placed on the base plate 10 with the base plate 10 by the method defined above before finally reconnecting the press box casing 9 (see feature d) of the first claim), and also to save the laying of the blank blank 1 on the bale 8. For this reason, the corresponding devices for the films 1 and 2 are missing in FIG. 7. If the complete packaging can be organized outside of the press after the bandaging according to FIG. 7, the underside of the bale can also be used later in the pressing and packaging process be covered with a blank of packaging. An example of this is shown in FIG. 7. There, the shrink film 17 'is placed around the bale 8 v as before. The same device with the film rolls 18 'and 19' is perpendicular to the device with the film rolls 18, 19 and places a further shrink film 17 '' when the bale 8 v moves forward on the other sides of the bale 8 v and then in the shrink oven 37 to proceed.

Claims (29)

  1. Method of packing fibrous material into bales (8) by means of a multiple-stage compacting process using a plurality of preliminary presses, wherein the material, which has been prepressed into box-shaped, doorless, stable containers (9, 10), is conveyed to a central press (I - III), in which the prepressed material is finally compacted to form a bale (8) and subsequently packaged, in that the containers (9, 10), which are filled with the fibrous material and comprise a one-piece cover portion (9) and a base plate (10), which is detachable therefrom, are conveyed from the preliminary presses to the central press (I - III), which operates independently of the working rhythm of these preliminary presses, along one or more optionally orientated paths, possibly with some interposition, and the containers (9, 10) are accepted by the central press (I - III) in any desirable sequence, the cover portion (9) of the container (9, 10) is completely removed from the bale (8) after the material in the container (9, 10) has been finally pressed by means of a press punch (13) whilst maintaining the pressure, and then the bale (8'') is packaged, e.g. by wrapping the bale (8'') with a film (1, 2, 14, 17) and binding it with a linear binding means (28), and said bale is removed from the central press (I - III) after the press punch (13) has been retracted, and the cover portion (9), which is held in position still in the central press (I - III), is again joined to a base plate (10) - for the return conveyance of the container (9, 10) along one or more optionally orientated paths -
    characterised in that
    a) the container (9, 10) is moved into the pressing station (I) of the central press (I - III) and secured there, the upper surface of the container (9, 10) or the underside of the press punch (13) is now at the latest provided with a top blank of packaging material (1) - in the event of the packaging being effected under the pressure of the press punch - the fibrous material is compacted by means of the press punch (13), and the cover portion (9) is subsequently removed from the base plate (10) and the bale (8), then
    b) the central press (I - III), which comprises at least two complete pressing units distributed uniformly about a central axle (4), is rotated about its central axle (4), and the packaging station (II) and/or binding station (III) are thereby reached around a circle after passing through an angle preferably > 120°,
    c) the bale (8), which continues to be under pressure, being moved, together with the press punch (13), along a circular path (6) into the packaging station (II) and/or binding station (III), in which, on the one hand - in the event of the packaging being effected under the pressure of the press punch - the lateral faces of the bale (8) are at least covered with the protruding edges of a bottom blank of packaging material (2) and of the top blank of packaging material (1) and are possibly additionally wrapped with a cover blank of packaging material (14), and/or,
    d) on the other hand, the bale (8''), which is under pressure, is wrapped several times with tapes (23) or wires, and the finally packaged or only bound bale (8'') is subsequently relieved of the pressure of the press punch (13) and moved from the central press (I - III), and then
    e) internally of the central press (I - III) the base plate (10), which is now free of the bale (8'''), is possibly again provided with the bottom blank of packaging material (2), at any rate the cover portion (9) of the container (9, 10), which portion is kept in position, is again joined to the base plate (10) and thereby or previously moved, together with the press punch (13), along the circular path (6'') in the same direction of rotation into the previous pressing station (I) of a), and then
    f) the bale is moved into a packaging station (IV) externally of the central press (I - III) in the event of a bale (8v) not yet being packaged.
  2. Method according to claim 1, characterised in that
    a) the bale (8) is compacted as defined in claim 1, a), and the cover portion (9) is likewise removed from the base plate (10) and the bale (8), then
    b) the bale (8), which continues to be under pressure, is moved, together with the press punch (13), along the circular path (6) into, initially, one packaging station (II), and then
    c) the bale (8'), which continues to be under pressure, is moved, together with the press punch (13), along the circular path (6') into a subsequent binding station (III), when viewed with respect to the same direction of rotation.
  3. Method according to claim 1 or 2, characterised in that, if there are three pressing units (I - III), the packaging station (II) and then the binding station (III) are reached around a circle (6,6') after passing through 120°.
  4. Method according to one of claims 1 to 3, characterised in that the central press (I - III) is tangentially encountered by the press containers (9, 10), which are filled with the prepressed fibrous material, and the empty containers (cover portion (9) plus base plate (10)) are conveyed from the central press (I - III) in the same tangential.
  5. Method according to one of claims 1 to 4, characterised in that - as known - the top and bottom blanks of packaging material in the packaging station are placed against the lateral faces of the bale at least partially by means of vertically displaceable fingers, and the cover blank of packaging material (14) is wrapped round the bale relative to the bale (8').
  6. Method according to claim 5, characterised in that the bale (8v) is moved relative to a stretched wall of film (17) and through said wall for the cover blank of packaging material (14) to be wrapped therearound, and the blank is thereby placed around the bale (8v).
  7. Method according to claim 5, characterised in that the cover blank of packaging material (14) is passed around the bale (8') relative to the stationary bale (8') radially to the circular path (6) of the central press (I - III).
  8. Method according to one of claims 1 to 4, characterised in that the bound bale (8''') is wrapped with a shrinkable film (17', 17'') externally of the circular path (6) of the central press (I, III) and is thus packaged in all directions.
  9. Method according to one of claims 1 to 8, characterised in that, in the binding station (III), the binding heads (25) are pivoted relative to the bale (8'') from a position of rest, disposed tangentially relative to the circular path (6), into a binding arrangement, which is disposed parallel to the lateral faces of the bale (8'').
  10. Method according to claim 9, characterised in that, for conveyance from the central press (I, III), the finally packaged or only finally bound bale (8''') is pivoted outwardly, together with an arm (26) of the binding device, into a position, e.g. tangential, relative to the circular path (6) and moved from the central press (I, III) from such position.
  11. Press system for the multiple-stage compacting of fibrous material in the form of bales and packaging these bales (8) with flat packaging material (1, 2, 14, 17) and binding for accomplishing the method according to one of claims 1 to 10, comprising a plurality of preliminary presses, which are each provided with a depositing means, and an independently installed central press (I, II, III), which is operable independently of their working rhythm and is provided with a press punch (13) and displacement means for drawing the doorless press box cover (9) from the bale (8), the material being prepressed in a respective box-shaped container (9, 10), delivered from the preliminary press and supplied to the central press (I, II, III) by conveyor means for final pressing and final packaging on an optionally orientated path, and the empty containers (9, 10) are guided back to the preliminary presses after delivery of the bales (8''''), characterised in that the central press comprises at least two, possibly three complete pressing units (I, II, III), which are uniformly distributed around a central axle (4), said units being radially orientated outwardly from the central axle (4) and being rotatably mounted around this central axle (4), and the actual pressing station (I), the binding station (III) and possibly the packaging station (II) are disposed around the central axle and remote therefrom by an angle of 120° or 180°.
  12. Press system according to claim 11, characterised in that the central press (I, II, III) has associated therewith a press box supply line (36) and preferably also a press box discharge line (36'), which is disposed tangentially relative to the rotary circle (6, 6', 6'') of the pressing units (I, II, III).
  13. Press system according to claim 12, characterised in that the tangential is in alignment with the centre of the pressing position of each pressing unit (I, II, III).
  14. Press system according to claim 12 or 13, characterised in that the supply and discharge lines (36, 36') extend continuously in a rectilinear manner through the path of rotary movement of the pressing units (I, II, III).
  15. Press system according to one of claims 11 to 14, characterised in that a radially externally associated arrangement (Fig. 3) is disposed in the packaging station (II) of the central press (I - III) for positioning the covering film (14,17).
  16. Press system according to one of claims 11 to 14, characterised in that an arrangement (Fig. 6), which is tangentially associated with the central press externally of the circular path (6), is disposed in the packaging station (IV) externally of the displacement path of the central press (I,III) for positioning a packaging film, such as a covering film (14, 17), around the bale (8v).
  17. Press system according to claim 15, characterised in that a rotatably retained roll of film (18, 19) is disposed in the packaging station (II) of the central press (I, II, III) on each side of the bale (8'), which is kept stationary, externally of the circular path (6), said rolls of film carrying the covering film (17) tensioned therebetween in a wound-up manner, and in that a cover positioning unit (15, 16; 15', 16'), which is longitudinally displaceable on each side of the bale (8'), is provided for placing the cover around the bale (8').
  18. Press system according to claim 17, characterised in that, to produce the cover (14), which is closed around the bale (8'), at least one cover positioning unit (15, 16) is mounted on the radially inward side of the bale (8') so as to be displaceable to the other side.
  19. Press system according to claim 16, characterised in that a rotatably retained roll of film (18, 19) is preferably disposed in the packaging station (IV) externally of the displacement path of the central press (I, III) on each side of the displaceably retained bale (8v) tangentially externally of the circular path (6) of the central press (I, III), and said rolls carry the cover film (17) tensioned therebetween in a rolled-up manner, and in that the bale (8v) is displaceable through the curtain of film (17) for the placing of the cover.
  20. Press system according to claim 19, characterised in that, to produce the cover (14), which is closed around the bale (8v), at least one of two cover positioning units (15, 16), which are retained in stationary manner relative to the central press (I, III), is mounted on the rear side of the bale (8v) so as to be displaceable to the side situated opposite.
  21. Press system according to claim 16, characterised in that an arrangement for positioning a shrinkable film around the bale (8v) is disposed in the packaging station (IV) externally of the displacement path of the central press (I, III).
  22. Press system according to one of claims 11 to 14, characterised in that a binding arm (23, 24), provided with a binding head (25), and an additional arm, provided with tape guide rails (29), are mounted in the binding station (III) on each side of the secured bale (8'') externally of the circular path (6) so as to be tangentially orientated and inwardly pivotable about an axle (27).
  23. Press system according to claim 22, characterised in that an arrangement (23, 26, 31, 32; 33, 34) for the removal of the finally bound bale (8'') is disposed in the binding station (III).
  24. Press system according to claim 23, characterised in that the arrangement is configured as a supporting structure (33, 34).
  25. Press system according to claim 22 or/and 24, characterised in that the arrangement (23, 26, 31, 32) is co-ordinated with the movement of one of the binding arms (23).
  26. Press system according to claim 25, characterised in that a device (31, 32) is provided on one of the binding arms (23) for retaining and outwardly pivoting the finally bound bale (8'') from the binding station (III) into the position for conveying-away the bale (8''').
  27. Press system according to claim 25, characterised in that a device (31, 32) is provided on one of the binding arms (23) for retaining and outwardly pivoting the finally bound bale (8'') from the binding station (III) into the packaging station (IV).
  28. Press system according to claim 26 or 27, characterised in that the binding arm (23) has a U-shaped configuration by means of a retaining flange (26), with which it surrounds the bale (8'') in the binding station (III) on three sides, and in that a press punch (31, 32) is disposed on the arm (23, 26) so as to be displaceable towards the bale (8'') radially inwardly relative to the bale (8'').
  29. Press system according to claims 16, 27 and 28, characterised in that the packaging station (IV), which is disposed externally of the displacement path of the central press (I, II), is disposed in a straight line immediately subsequent to the position for conveying-away the bale (8''').
EP94119461A 1994-07-13 1994-12-09 Method and apparatus for compressing and packaging fibrous materials in bales Expired - Lifetime EP0695690B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4424616 1994-07-13
DE4424616 1994-07-13
DE4430537 1994-08-27
DE4430537A DE4430537A1 (en) 1994-07-13 1994-08-27 Method and device for compressing and packing fibrous material in bales

Publications (2)

Publication Number Publication Date
EP0695690A1 EP0695690A1 (en) 1996-02-07
EP0695690B1 true EP0695690B1 (en) 1997-06-04

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Application Number Title Priority Date Filing Date
EP94119461A Expired - Lifetime EP0695690B1 (en) 1994-07-13 1994-12-09 Method and apparatus for compressing and packaging fibrous materials in bales

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EP (1) EP0695690B1 (en)
JP (1) JPH0826215A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107839925A (en) * 2013-03-26 2018-03-27 奥特发德国科技有限公司 Packing device and packing method and baling press

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE202008003760U1 (en) * 2008-03-18 2009-07-23 Autefa Automation Gmbh packaging device
DE202011051610U1 (en) 2011-09-02 2012-12-06 Autefa Solutions Germany Gmbh Transport device for pressed bales
DE102012112804A1 (en) * 2012-12-20 2014-06-26 Krones Ag Manufacturing and packaging system and method for producing and packaging pressed bodies of biological material
DE202017104766U1 (en) 2017-08-09 2018-11-12 Autefa Solutions Germany Gmbh packaging device
CN118665768B (en) * 2024-07-25 2025-09-19 江阴瑞特泰科包装设备有限公司 Surrounding type binding and film enclosing integrated machine based on packer

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Publication number Priority date Publication date Assignee Title
DE3072015D1 (en) * 1979-02-17 1987-10-01 Vepa Ag Method for baling fibrous material and a baling press therefor
DE2948237A1 (en) * 1979-11-30 1981-06-04 Hoechst Ag, 6000 Frankfurt METHOD AND DEVICE FOR PRESSING, PACKING AND STRAPPING FIBROUS GOODS IN BALE SHAPE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107839925A (en) * 2013-03-26 2018-03-27 奥特发德国科技有限公司 Packing device and packing method and baling press

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JPH0826215A (en) 1996-01-30

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