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EP0308986B1 - Fibre baling press - Google Patents

Fibre baling press Download PDF

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Publication number
EP0308986B1
EP0308986B1 EP88115821A EP88115821A EP0308986B1 EP 0308986 B1 EP0308986 B1 EP 0308986B1 EP 88115821 A EP88115821 A EP 88115821A EP 88115821 A EP88115821 A EP 88115821A EP 0308986 B1 EP0308986 B1 EP 0308986B1
Authority
EP
European Patent Office
Prior art keywords
film
bale
baling press
base plate
plate
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
EP88115821A
Other languages
German (de)
French (fr)
Other versions
EP0308986A1 (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
Original Assignee
Fleissner GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP0308986A1 publication Critical patent/EP0308986A1/en
Application granted granted Critical
Publication of EP0308986B1 publication Critical patent/EP0308986B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/12—Baling or bundling compressible fibrous material, e.g. peat
    • B65B27/125—Baling or bundling compressible fibrous material, e.g. peat and wrapping or bagging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details

Definitions

  • the invention relates to a fiber baler with at least one press plate which can be covered with a piece of film-like packaging material and which is assigned to a press box casing which is preferably completely closed.
  • a fiber baler of this type is known from DE-A-29 11 958. Since the steel strips or the like must not come into contact with the fibers to tie the bale, the bale must be covered with packaging material all around before the reinforcement. For this purpose, both the lower and the upper press ram are coated with a piece of packaging material before the pressing process, then the bale is pressed, then the press box jacket is removed upwards while maintaining the pressing pressure and finally wrapped horizontally with a wider packaging material piece all around to end the packaging process .
  • a prerequisite for packaging to ensure satisfactory packaging is not only that the film covers the bale all around, but also that the film surrounds the bale without wrinkles, so that both the surfaces and the edges of the bale look neatly packaged.
  • This ram design is very expensive to manufacture. However, it also requires a number of movements only for wrapping the bale all around with a film, which are quite time-consuming and ultimately prone to failure. In this respect, it is more advantageous if the bottom and the press ram are not divided, but consist of one piece.
  • the lower ram i.e. the bottom plate of the press box, made of a flat plate, which is interspersed with lacing grooves for the reinforcement process.
  • devices are arranged in the base plate which are intended to cause the edge portions of the film to bend upwards around the bale after the press box casing has been pulled off. These devices consist of fingers that are supposed to slide upwards around the film edge sections.
  • the invention has for its object to develop a fiber baler, in which the film itself by the design of the press plate itself after removing the press box casing on the bale, whereby stretching, pivoting or upward moving fingers are substantially avoided .
  • the press plate for aligning the film is trough-shaped with wall parts protruding all around from the floor.
  • the edge sections of the film are oriented upwards when the press box is filled with the material to be pressed. A part of the edge sections of the film is thus already directed upwards when the press box casing is removed, so that the remaining edge sections of the film bent downward from the lower end face of the press box casing automatically point upwards after the press box casing has been removed.
  • the film is automatically directed downwards.
  • the pressing pressure that acts vertically downwards also creates a force in the direction of the press box walls. This pressure is released when the press casing is removed, whereupon the fiber material will expand one or two cm outwards, depending on the fiber properties. If the press box casing is now pulled off, the fiber material on the upper edge of the trough will bulge outwards beyond this edge, with the result that the film is pressed horizontally outwards from the tendency directed from the bottom upwards. It is a particular idea of the invention to avoid this horizontal outward bending of the film by making the base plate larger in its trough-shaped cross section than the cross sectional area of the press box casing.
  • the fiber material will not only expand outwards in the area of the press box jacket previously arranged there, but also in the area of the trough-shaped opening of the base plate, in such a way that, after the stretching process, the bale receives exactly the shape that the tub already has in its construction. So that the film lies evenly upwards from the flat surface perpendicular to the bale and can now be easily covered by the film to be wrapped horizontally, without the need for additional directional fingers or the like.
  • the edge sections of the film are not too long and too heavy. This applies in particular to the longer long sides of the bale, which are later held by the steel strips or the like.
  • a longer section of film is necessary on the narrower end faces, which are generally not reinforced, in order to permanently cover the bale with the film.
  • this longer section of film cannot be oriented upwards over its entire length due to the measure according to the invention.
  • the invention provides that a foil sheet metal sheet is attached to the outside of the two narrow sides of the base plate, closely adjacent to the outer wall, so that it can be moved up and down. So there should be no fingers attached to the base plate, but only a pivotable foil sheet which can be moved through an inclined plane, for example when the pressed bale is moved into the reinforcement station.
  • the lower press plate of a central press is also the bottom of a press box.
  • a press box thus consists of the base plate 1 and the all-round closed press box jacket 2, which is detachably connected to the base plate 1.
  • the bottom plate 1 has for pulling the packaging tapes or the like.
  • Fig. 4 visible lacing grooves 3, which are open to the bale 9 so that the threaded tapes lie after lifting the pressure through these openings on the bale.
  • the base plate 1 is trough-like in the area of the receptacle of the fiber material 7, and not only to give the bale 9 a round shape in the area of the longitudinal edges, but also around the piece of packaging material 4 for covering of the bale 9 is placed on its underside before merging with the press box casing 2 on the press plate 1 by means not shown here, to give a pre-orientation upwards in the direction of the bale 9.
  • the inner edges of the tub 6 are expediently provided with an inner radius.
  • the press ram not shown, can also be designed to be open in the manner of a trough.
  • the press box casing 2 moves downward from above and is supported on the base plate 1 in order to be firmly connected to it by folding devices, not shown here.
  • the inner surface of the tub 6 is larger than the cross section of the interior of the press box casing 2.
  • the lower end 5 of the inner wall of the press box casing 2 dips into the tub 6 at a short distance from the tub 6, so that the piece of packaging material 4 is placed evenly on the bottom of the base plate 1 and is well fixed there even when the jug is filled with fiber material 7.
  • the more stable outer wall 8 of the press box casing 2 is supported outside the tub 6 on the base plate 1, so that the weight of the perss box casing 2 is not supported on the narrower wall 6 'of the tub 6. For this reason, the press box jacket extends deeper outside of the tub 6, ie inside the tub 6, and is connected there with grippers to the base plate 1.
  • the press box now migrates together with the press box jacket and press box bottom, that is to say the base plate, to the central press, where the final pressing process of the fiber material 7 to the bale 9 shown in FIG. 3 is carried out. So that the bale 9 can be packed all around with prepacking material, it is necessary to remove the press box casing 2 from the bale 9. This takes place in the fiber baler according to the invention in that the press box casing is pulled upwards in accordance with the arrows shown in FIG. Since the baling pressure acts unchanged by the baling punch, not shown, the fiber material of the bale 9 expands to the sides that are released are. These are the four side surfaces of the bale 9.
  • the fiber material in the trough 6 can also expand on all four sides. This has the advantage that the fiber material of the bale 9 is not pressed over the upper edge of the tub 6 during expansion and the film 4 would otherwise press horizontally outwards there. Due to the construction of the base plate 1, the fiber material of the bale 9 can also expand outwards in the region of the tub 6 and then, after the stretching process, receives exactly the figuration that was previously determined by the tub 6. The bale 9 then extends vertically upward from the side walls of the tub 6, as a result of which the packaging material piece 4 is given an upward orientation. This is also shown in Figure 3.
  • FIG. 4 shows one side of the bale 9 in the area of the front side of the bale 9. For such a long edge section 10 ′ of the packaging material piece 4, the pre-orientation of the film upwards due to the design of the tub 6 would not be sufficient to place the packaging material on the bale 9.
  • a foil sheet metal sheet 11 is attached to the base plate 1 close to the outer wall and is displaceable up and down.
  • the pivot point of the sheet metal sheet 11 is provided on the sliding carriage 12 on the joint 13.
  • a spring 14 in this articulated arm 15 ensures that the foil sheet metal 11 is in constant contact with the bale 9.
  • the articulated arm 15 automatically pivoted upwards when the bale is moved into the packaging station about the joint 13, as a result of which the foil sheet 11 places the edge section 10 'of the packaging material piece 4 upwards, namely against the end face of the bale 9.
  • the foil sheet 11 can also rest against the bale 9 during the reinforcement process without interfering with this reinforcement process.
  • the articulated arm 15 then moves slowly over the downward inclined plane 18 on the opposite side and is thereby pulled out of the space between the film section 10 and the film piece which has meanwhile been wrapped horizontally and re-welded.

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

Description

Die Erfindung bezieht sich auf eine Faserballenpresse mit mindestens einer mit einem folienartigen Verpackungsmaterialstück belegbaren Preßplatte, die einem vorzugsweise rundum geschlossenen Preßkastenmantel zugeordnet ist.The invention relates to a fiber baler with at least one press plate which can be covered with a piece of film-like packaging material and which is assigned to a press box casing which is preferably completely closed.

Eine Faserballenpresse dieser Art ist aus der DE-A-29 11 958 bekannt. Da die Stahlbänder od. dgl. zum Verschnüren des Ballens mit den Fasern nicht in Berührung kommen dürfen, ist der Ballen rundum vor der Armierung mit Verpakkungsmaterial zu bedecken. Dazu werden zunächst sowohl der untere als auch der obere Preßstempel vor dem Preßvorgang mit einem Verpackungsmaterialstück belegt, dann der Ballen verpreßt, anschließend der Preßkastenmantel unter Aufrechterhaltung des Preßdruckes nach oben hin abgezogen und schließlich zur Beendigung des Verpackungsvorganges der Ballen rundum mit einem breiteren Verpackungsmaterialstück horizontal umwickelt.A fiber baler of this type is known from DE-A-29 11 958. Since the steel strips or the like must not come into contact with the fibers to tie the bale, the bale must be covered with packaging material all around before the reinforcement. For this purpose, both the lower and the upper press ram are coated with a piece of packaging material before the pressing process, then the bale is pressed, then the press box jacket is removed upwards while maintaining the pressing pressure and finally wrapped horizontally with a wider packaging material piece all around to end the packaging process .

Voraussetzung für ein zufreidenstellendes Verpacken ist nicht nur, daß die Folie den Ballen rundum bedeckt, sondern daß auch die Folie den Ballen faltenfrei umgibt, damit sowohl die Flächen als auch die Kanten des Ballens sauber verpackt aussehen. Um dieses zu bewirken, ist es aus der genannten Offenlegungsschrift bekannt, sowohl den Preßstempel als auch den Preßkastenboden aus einem Kernstempel und einen ihn umgebenden Außenstempel zu bilden, damit nach dem Preßvorgang beim Entfernen des Außenstempels die Folienrandstücke gleichmäßig um den Ballen gelegt werden können. Diese Preßstempelkonstruktion ist sehr teuer in der Herstellung. Sie erfordert aber auch eine Anzahl von Bewegungsvorgängen allein nur für das Verpacken des Ballens rundum mit einer Folie, die recht zeitaufwendig sind und letzlich auch störanfällig. Insofern ist es vorteilhafter, wenn der Boden und der Preßstempel nicht unterteilt sind, sondern aus einem Stück bestehen. Dann müssen aber sowohl im oberen als auch im unteren Preßstempel Einrichtungen angeordnet sein, die nach dem Preßvorgang die nach außen abstehenden Randabschnitte der Boden- und Deckenverpackungsmaterialstücke zum Ballen hin umbiegen. Diese dann wunschgemäß am Ballen anliegenden Randabschnitte werden letzlich mit der horizontal umwickelten Folie bedeckt, so daß der Ballen rundum vollständig und glatt verpackt ist.A prerequisite for packaging to ensure satisfactory packaging is not only that the film covers the bale all around, but also that the film surrounds the bale without wrinkles, so that both the surfaces and the edges of the bale look neatly packaged. In order to achieve this, it is known from the cited publication to form both the press ram and the press box base from a core ram and an outer ram surrounding it, so that after removing the outer ram the foil edge pieces can be placed evenly around the bale. This ram design is very expensive to manufacture. However, it also requires a number of movements only for wrapping the bale all around with a film, which are quite time-consuming and ultimately prone to failure. In this respect, it is more advantageous if the bottom and the press ram are not divided, but consist of one piece. Then, however, devices must be arranged both in the upper and in the lower press ram which, after the pressing process, bend the outwardly protruding edge sections of the pieces of floor and ceiling packaging material into bales. These edge sections, which then lie against the bale as desired, are finally covered with the horizontally wrapped film, so that the bale is completely and smoothly packed all around.

Wie aus der DE-A-29 11958 bekannt, besteht der untere Preßstempel, d.h. die Bodenplatte des Preßkastens, aus einer ebenen Platte, die mit Schnürnuten für den Armierungsvorgang durchsetzt ist. Außerhalb des Querschnitts des verpreßten Ballens, also im Bereich des auf der Bodenplatte abgesetzten Preßkastenmantels, sind in der Bodenplatte Einrichtungen angeordnet, die das Umbiegen der Randabschnitte der Folie nach oben um den Ballen, nach Abziehen des Preßkastenmantels nach oben, bewirken sollen. Diese Einrichtungen bestehen aus Fingern, die rundum die Folienrandabschnitte nach oben schieben sollen. Es hat sich gezeigt, daß diese Randabschnitte der Folie, die während des Preßvorganges des Ballens von der unteren Stirnkante des Preßkastenmantels fest gegen die Bodenplatte gedrückt wurden, nur schwer durch diese Finger nach oben an den Ballen gelegt werden können. Dies ist ggf. möglich im Bereich der längeren Seitenflächen des Ballens, wenn es auch dort vorkommt, daß, die von unten nach oben aus der Bodenplatte hervorstechenden Finger. die Folie durchstoßen, was ein Ausrichten der Randabschnitte verunmöglicht. Jedenfalls im Bereich der Ecken können diese Finger die dort im Überfluß vorhandene Folie nicht an den Ballen anlegen. Es kommt immer wieder vor, daß gerade in den Ecken die Folie eine Art Ohr bildet, das entgegengesetzt der Anlagerichtung vom Ballen nach unten absteht.As is known from DE-A-29 11958, the lower ram, i.e. the bottom plate of the press box, made of a flat plate, which is interspersed with lacing grooves for the reinforcement process. Outside the cross-section of the pressed bale, that is to say in the region of the press box casing placed on the base plate, devices are arranged in the base plate which are intended to cause the edge portions of the film to bend upwards around the bale after the press box casing has been pulled off. These devices consist of fingers that are supposed to slide upwards around the film edge sections. It has been shown that these edge sections of the film, which were pressed firmly against the base plate from the lower end edge of the press box casing during the pressing process of the bale, can only be placed on the bale by these fingers with difficulty. This may be possible in the area of the longer side surfaces of the bale, if it also happens there that the fingers protruding from the bottom plate upward from the bottom plate. pierce the film, making it impossible to align the edge sections. In any case in the area of the corners, these fingers cannot apply the excess film there to the bales. It often happens that the film forms a kind of ear in the corners, which protrudes from the bale in the opposite direction to the plant.

Der Erfindung liegt die Aufgabe zugrunde, eine Faserballenpresse zu entwickeln, bei der die Folie durch die Ausgestaltung der Preßplatte selber sich nach dem Abziehen des Preßkastenmantels selbsttätig an den Ballen legt, wodurch sich strekkende, zu verschwenkende oder nach oben zu verschiebende Finger im wesentlichen vermieden sind.The invention has for its object to develop a fiber baler, in which the film itself by the design of the press plate itself after removing the press box casing on the bale, whereby stretching, pivoting or upward moving fingers are substantially avoided .

Ausgehend von der Faserballenpresse anfangs genannter Art liegt die Lösung der gestellten Aufgabe darin, daß die Preßplatte zur Ausrichtung der Folie wannenartig mit rundum gegenüber dem Boden vorstehenden Wandungsteilen ausgebildet ist.Starting from the fiber baler of the type mentioned at the beginning, the solution to the problem is that the press plate for aligning the film is trough-shaped with wall parts protruding all around from the floor.

Durch diese Maßnahme orientieren sich die Randabschnitte der Folie beim Füllen des Preßkastens mit dem zu verpressenden Material nach oben. Ein Teil der Randabschnitte der Folie ist also schon beim Abziehen des Preßkastenmantels nach oben gerichtet, so daß sich die übrigen von der unteren Stirnfläche des Preßkastenmantels nach unten umgebogenen Randabschnitte der Folie nach dem Abziehen des Preßkastenmantels von selbst nach oben richten. Gleiches gilt auch für den oberen Preßstempel, hier jedoch richtet sich die Folie selbsttätig nach unten aus.As a result of this measure, the edge sections of the film are oriented upwards when the press box is filled with the material to be pressed. A part of the edge sections of the film is thus already directed upwards when the press box casing is removed, so that the remaining edge sections of the film bent downward from the lower end face of the press box casing automatically point upwards after the press box casing has been removed. The same applies to the upper press ram, but here the film is automatically directed downwards.

Beim Verpressen des Fasermaterials entsteht durch den lotrecht nach unten hin sich auswirkende Preßdruck auch eine Kraft in Richtung der Preßkastenwände. Dieser Druck löst sich beim Abziehen des Preßkastenmantels, woraufhin sich das Fasermaterial je nach den Fasereigenschaften ein oder zwei cm nach außen ausdehnen wird. Wenn nun der Preßkastenmantel abgezogen wird, so wird sich das Fasermaterial an der oberen Kante der Wanne über diese Kante hinaus nach außen wölben, womit die Folie von der von unten nach oben gerichteten Tendenz horizontal nach außen gedrückt wird. Es ist eine besondere Idee der Erfindung, dieses horizontale nach außen Verbiegen der Folie zu vermeiden, indem die Bodenplatte in ihrem wannenförmigen Querschnitt größer als die Querschnittsfläche des Preßkastenmantels ausgebildet ist. Wenn jetzt der Preßkastenmantel abgezogen wird, wird sich das Fasermaterial nicht nur im Bereich des vorher dort angeordneten Preßkastenmantels nach außen ausdehnen, sondern auch im Bereich der wannenförmigen Öffnung der Bodenplatte, und zwar gerade derart, daß nach Beendigung des Dehnvorganges der Ballen exakt die Form erhält, die die Wanne in ihrer Konstruktion bereits hat. Damit liegt die Folie von der ebenen Fläche aus gleichmäßig nach oben gerichtet lotrecht am Ballen an und kann jetzt von der horizontal zu wickelnden Folie leicht bedeckt werden, ohne daß zusätzliche Richtfinger od. dgl. notwendig sind.When the fiber material is pressed, the pressing pressure that acts vertically downwards also creates a force in the direction of the press box walls. This pressure is released when the press casing is removed, whereupon the fiber material will expand one or two cm outwards, depending on the fiber properties. If the press box casing is now pulled off, the fiber material on the upper edge of the trough will bulge outwards beyond this edge, with the result that the film is pressed horizontally outwards from the tendency directed from the bottom upwards. It is a particular idea of the invention to avoid this horizontal outward bending of the film by making the base plate larger in its trough-shaped cross section than the cross sectional area of the press box casing. If the press box jacket is now removed, the fiber material will not only expand outwards in the area of the press box jacket previously arranged there, but also in the area of the trough-shaped opening of the base plate, in such a way that, after the stretching process, the bale receives exactly the shape that the tub already has in its construction. So that the film lies evenly upwards from the flat surface perpendicular to the bale and can now be easily covered by the film to be wrapped horizontally, without the need for additional directional fingers or the like.

Eine weitere sehr vorteilhafte Maßnahme ist gegeben, wenn das untere Ende der inneren Wandung des Preßkastenmantels in die Wanne eintaucht. In diesem Falle wird nach Legen der Folie auf die Bodenplatte, beim Verbinden des Preßkastenmantels mit der Bodenplatte, die Folie schon jetzt gleichmäßig rundum in die Tiefe der Bodenplatte hineingedrückt, so daß sich auch beim Abtransport des mit der Bodenplatte wieder vereinigten Preßkastenmantels ein Verschieben des Folienabschnittes nicht mehr möglich ist.Another very advantageous measure is given when the lower end of the inner wall of the press box casing dips into the tub. In this case, after placing the film on the base plate, when connecting the press box casing to the base plate, the film is now pressed evenly all the way into the depth of the base plate, so that even when the press box cover combined with the base plate is removed, the film section is displaced is no longer possible.

Ein selbsttätiges Ausrichten der Folienrandabschnitte an den Ballen ist natürlich durch die erfindungsgemäße Maßnahme nur dann möglich, wenn die Randabschnitte der Folie nicht zu lang und zu schwer sind. Dies gilt insbesondere für die längeren Längsseiten des Ballens, die später von den Stahlbändern od. dgl. gehalten sind. An den schmaleren Stirnseiten, die im allgemeinen nicht armiert werden, ist jedoch ein längerer Folienabschnitt notwendig, um den Ballen auf die Dauer mit der Folie zu bedecken. Dieser längere Folienabschnitt läßt sich aber durch die erfindungsgemäße Maßnahme wegen seines Gewichtes nicht über sein ganze Länge nach oben ausrichten. Um dies bei der Konstruktion nach der Erfindung dennoch zu ermöglichen, sieht die Erfindung vor, daß an der Außenseite der beiden Schmalseiten der Bodenplatte, dicht benachbart zur Außenwandung, ein Folienlegeblech nach oben und unten verschiebbar befestigt ist. Es sollen also keine Finger an der Bodenplatte befestigt sein, sondern lediglich ein verschwenkbares Folienlegeblech, das beispielsweise beim Verschieben des verpreßten Ballens in die Armierungsstation durch eine schiefe Ebene bewegt werden kann.An automatic alignment of the film edge sections on the bales is of course only possible through the measure according to the invention if the edge sections of the film are not too long and too heavy. This applies in particular to the longer long sides of the bale, which are later held by the steel strips or the like. However, a longer section of film is necessary on the narrower end faces, which are generally not reinforced, in order to permanently cover the bale with the film. However, due to its weight, this longer section of film cannot be oriented upwards over its entire length due to the measure according to the invention. In order to make this possible in the construction according to the invention, the invention provides that a foil sheet metal sheet is attached to the outside of the two narrow sides of the base plate, closely adjacent to the outer wall, so that it can be moved up and down. So there should be no fingers attached to the base plate, but only a pivotable foil sheet which can be moved through an inclined plane, for example when the pressed bale is moved into the reinforcement station.

In der Zeichnung ist ein Ausführungsbeispiel der Konstruktion der unteren Preßplatte dargestellt, die gleichzeitig der Boden des Preßkastens einer Faserballenpresse ist. Es zeigen:

  • Figur 1: die Preßplatte im Schnitt quer zur Längerstreckung des Ballens mit dem darüber schwebenden Preßkastenmantel,
  • Figur 2: die Preßplatte gemäß Figur 1 mit verbundenem Preßkastenmantel, z.B. nach dem Füllen mit einem noch zu verpressenden Fasermaterial,
  • Figur 3: die Preßplatte nach Figur 1 nach dem Verpressen des Fasermaterials, wobei der Ballen nach wie vor unter Preßdruck steht, jedoch beim Abziehen des Preßkastenmantels und
  • Figur 4: die Preßplatte beim seitlichen Verschieben in eine benachbarte Verpackungsstation.
In the drawing, an embodiment of the construction of the lower press plate is shown, which is also the bottom of the press box of a fiber baler. Show it:
  • FIG. 1: the press plate in cross-section to the longitudinal extension of the bale with the press box casing floating above it,
  • FIG. 2: the press plate according to FIG. 1 with the press box casing connected, for example after filling with a fiber material still to be pressed,
  • Figure 3: the press plate of Figure 1 after pressing the fiber material, the bale is still under pressure, but when pulling the press box jacket and
  • Figure 4: the press plate when moving laterally into an adjacent packaging station.

Bei der Faserballenpresse nach der Erfindung ist die untere Preßplatte einer Zentralpresse gleichzeitig der Boden eines Preßkastens. Ein Preßkasten besteht also aus der Bodenplatte 1 und dem rundum geschlossenen Preßkastenmantel 2, der mit der Bodenplatte 1 lösbar verbunden ist. Die Bodenplatte 1 weist zum Durchziehen der Verpakkungsbänder od. dgl. aus Fig. 4 ersichtliche Schnürnuten 3 auf, die zum Ballen 9 hin offen sind, so daß sich die eingefädelten Bänder nach Aufheben des Preßdruckes durch diese Öffnungen an den Ballen legen. Wie aus den Figuren 1-3 ersichtlich, ist die Bodenplatte 1 im Bereich der Aufnahme des Fasermaterials 7 wannenartig ausgebildet, und zwar nicht nur um dem Ballen 9 im Bereich der Längsränder eine runde Form zu geben, sondern um dem Verpackungsmaterialstück 4, das zum Bedecken des Ballens 9 an seiner Unterseite vor dem Vereinigen mit dem Preßkastenmantel 2 auf die Preßplatte 1 durch hier nicht dargestellte Vorrichtungen gelegt ist, eine Vororientierung nach oben in Richtung zum Ballen 9 zu geben. Zweckmäßig sind die Innenränder der Wanne 6 mit einem Innenradius versehen. Der nicht dargestellte Preßstempel kann ebenfalls wannenartig nach unten offen ausgebildet sein.In the fiber baler according to the invention, the lower press plate of a central press is also the bottom of a press box. A press box thus consists of the base plate 1 and the all-round closed press box jacket 2, which is detachably connected to the base plate 1. The bottom plate 1 has for pulling the packaging tapes or the like. From Fig. 4 visible lacing grooves 3, which are open to the bale 9 so that the threaded tapes lie after lifting the pressure through these openings on the bale. As can be seen from FIGS. 1-3, the base plate 1 is trough-like in the area of the receptacle of the fiber material 7, and not only to give the bale 9 a round shape in the area of the longitudinal edges, but also around the piece of packaging material 4 for covering of the bale 9 is placed on its underside before merging with the press box casing 2 on the press plate 1 by means not shown here, to give a pre-orientation upwards in the direction of the bale 9. The inner edges of the tub 6 are expediently provided with an inner radius. The press ram, not shown, can also be designed to be open in the manner of a trough.

Nachdem also die Bodenplatte 1 mit dem Verpackungsmaterialstück 4, gemäß der Darstellung in Figur 1 belegt ist, verfährt der Preßkastenmantel 2 von oben kommend nach unten und stützt sich auf die Bodenplatte 1 ab, um durch hier nicht dargestellte Klappeinrichtungen fest mit ihr verbunden zu werden. Wie insbesondere aus Fig. 2 ersichtlich, ist die Innenfläche der Wanne 6 größer als der Querschnitt des Innenraums des Preßkastenmantels 2. Gleichzeitig taucht mit geringem Abstand zur Wanne 6 das untere Ende 5 der Innenwandung des Preßkastenmantels 2 in die Wanne 6 ein, so daß sich das Verpackungsmaterialstück 4 gleichmäßig auf den Boden der Bodenplatte 1 legt und dort auch beim Füllen der Kanne mit Fasermaterial 7 gut fixier ist. Die stabiler ausgebildete Außenwandung 8 des Preßkastenmantels 2 ist außerhalb der Wanne 6 auf der Bodenplatte 1 abgestützt, so daß das Gewicht des Perßkastenmantels 2 nicht auf die schmäler ausgebildete Wandung 6' der Wanne 6 abgestützt ist. Aus diesem Grunde erstreckt sich also der Preßkastenmantel außerhalb der Wanne 6 tiefer also innerhalb der Wanne 6 und ist dort mit Greifern mit der Bodenplatte 1 verbunden.After the base plate 1 has been occupied with the packaging material piece 4, as shown in FIG. 1, the press box casing 2 moves downward from above and is supported on the base plate 1 in order to be firmly connected to it by folding devices, not shown here. As can be seen in particular from Fig. 2, the inner surface of the tub 6 is larger than the cross section of the interior of the press box casing 2. At the same time, the lower end 5 of the inner wall of the press box casing 2 dips into the tub 6 at a short distance from the tub 6, so that the piece of packaging material 4 is placed evenly on the bottom of the base plate 1 and is well fixed there even when the jug is filled with fiber material 7. The more stable outer wall 8 of the press box casing 2 is supported outside the tub 6 on the base plate 1, so that the weight of the perss box casing 2 is not supported on the narrower wall 6 'of the tub 6. For this reason, the press box jacket extends deeper outside of the tub 6, ie inside the tub 6, and is connected there with grippers to the base plate 1.

Von einer nicht dargestellten Vorpresse wandert nunmehr der Preßkasten zusammen mit Preßkastenmantel und Preßkastenboden, sprich Bodenplatte, zur Zentralpresse, wo der endgültige Preßvorgang des Fasermaterials 7 zum aus Fig. 3 ersichtlichen Ballen 9 durchgeführt wird. Damit der Ballen 9 rundum mit Vorpackungsmaterial verpackt werden kann, ist es notwendig, den Preßkastenmantel 2 vom Ballen 9 zu entfernen. Dies erfolgt bei der Faserballenpresse nach der Erfindung dadurch, daß der Preßkastenmantel entsprechend der in Figur 3 dargestellten Pfeile nach oben hin abgezogen wird. Da der Preßdruck durch den nicht dargestellten Preßstempel unverändert wirkt, dehnt sich das Fasermaterial des Ballens 9 zu den Seiten hin aus, die frei gegeben sind. Dies sind hier die vier Seitenflächen des Ballens 9. Da der Querschnitt der wannenartig ausgebildeten Bodenplatte 1 größer ist als der Querschnitt des Preßkastenmantels 2, kann sich das Fasermaterial auch in der Wanne 6 nach allen vier Seiten ausdehen. Dies hat den Vorteil, daß das Fasermaterial des Ballens 9 beim Ausdehnen nicht über die obere Kante der Wanne 6 gedrückt wird und ansonsten dort die Folie 4 horizontal nach außen drücken würde. Durch die Konstruktion der Bodenplatte 1 vielmehr kann sich das Fasermaterial des Ballens 9 auch im Bereich der Wanne 6 nach außen ausdehnen und erhält dann nach dem Dehnvorgang genau die Figuration, die durch die Wanne 6 vorher bestimmt ist. Von den Seitenwandungen der Wanne 6 erstreckt sich dann also der Ballen 9 lotrecht nach oben, wodurch das Verpackungsmaterialstück 4 eine nach oben gerichtet Vororientierung erhält. Dies ist ebenfalls in Figur 3 dargestellt.From a pre-press, not shown, the press box now migrates together with the press box jacket and press box bottom, that is to say the base plate, to the central press, where the final pressing process of the fiber material 7 to the bale 9 shown in FIG. 3 is carried out. So that the bale 9 can be packed all around with prepacking material, it is necessary to remove the press box casing 2 from the bale 9. This takes place in the fiber baler according to the invention in that the press box casing is pulled upwards in accordance with the arrows shown in FIG. Since the baling pressure acts unchanged by the baling punch, not shown, the fiber material of the bale 9 expands to the sides that are released are. These are the four side surfaces of the bale 9. Since the cross section of the trough-shaped base plate 1 is larger than the cross section of the press box casing 2, the fiber material in the trough 6 can also expand on all four sides. This has the advantage that the fiber material of the bale 9 is not pressed over the upper edge of the tub 6 during expansion and the film 4 would otherwise press horizontally outwards there. Due to the construction of the base plate 1, the fiber material of the bale 9 can also expand outwards in the region of the tub 6 and then, after the stretching process, receives exactly the figuration that was previously determined by the tub 6. The bale 9 then extends vertically upward from the side walls of the tub 6, as a result of which the packaging material piece 4 is given an upward orientation. This is also shown in Figure 3.

Selbstverständlich gilt dies nur, wenn das Verpackungsmaterialstück 4 in seinen nach außen überstehenden Randbereichen nicht zu lang ist. Für die längeren Seitenflächen des Ballens 9 brauchen die Randabschnitte 10 nicht breit zu sein, weil in diesem Bereich das Fasermaterial durch die Bänder oder Drähte gehalten ist. Auf den beiden Stirnseiten des Ballens sind dagegen die Folienrandabschnitte länger auszubilden, da hier im allgemeinen eine Armierung nicht erfolgt. In Figur 4 ist die eine Seite des Ballens 9 im Bereich der Stirnseite des Ballens 9 dargestellt. Für einen derart langen Randabschnitt 10' des Verpackungsmaterialstücks 4 würde die Vororientierung der Folie nach oben durch die Ausbildung der Wanne 6 nicht ausreichen, um das Verpakkungsmaterial an den Ballen 9 zu legen. Es ist zweckmäßig, das Legen dieses Randabschnitts 10' an den Ballen dadurch zu bewirken, daß an der Außenseite der beiden nicht zu armierenden Schmalseiten des Ballens an der Bodenplatte 1 dicht benachbart zur Außenwandung ein Folienlegeblech 11 nach oben und unten verschiebbar befestigt ist. Der Schwenkpunkt des Folienlegeblechs 11 ist an dem Verschiebewagen 12 an dem Gelenk 13 vorgesehen. Eine Feder 14 in diesem Gelenkarm 15 sorgt für die ständige Anlage des Folienlegeblechs 11 an dem Ballen 9. Beim seitlichen Verschieben des Preßkastens 1, 2 in Richtung des Pfeiles 16 überfährt der Gelenkarm 15 auch die ortsfest angeordnete schiefe Ebene 17. Damit wird der Gelenkarm 15 automatisch beim Verschieben des Ballens in die Verpackungsstation um das Gelenk 13 nach oben verschwenkt, wodurch das Folienlegeblech 11 den Randabschnitt 10' des Verpackungsmaterialstücks 4 nach oben, und zwar gegen die Stirnfläche des Ballens 9 legt. Das Folienlegeblech 11 kann auch während des Armierungsvorganges an dem Ballen 9 anliegen, ohne diesen Armierungsvorgang zu stören. Nach Beendigung dieses Verpackungsvorganges fährt dann der Gelenkarm 15 langsam über die abwärts laufende schiefe Ebene 18 auf der gegenüberliegenden Seite und wird dadurch aus dem Raum zwischen dem Folienabschnitt 10 und dem zwischenzeitlich horizontal herumgewickelten und wieder verschweißten Folienstück herausgezogen.Of course, this only applies if the packaging material piece 4 is not too long in its outwardly protruding edge regions. For the longer side surfaces of the bale 9, the edge sections 10 do not need to be wide because the fiber material is held in this area by the bands or wires. On the other hand, the film edge sections are to be made longer on the two end faces of the bale, since in general there is no reinforcement. FIG. 4 shows one side of the bale 9 in the area of the front side of the bale 9. For such a long edge section 10 ′ of the packaging material piece 4, the pre-orientation of the film upwards due to the design of the tub 6 would not be sufficient to place the packaging material on the bale 9. It is expedient to effect the laying of this edge section 10 'on the bale in that on the outside of the two narrow sides of the bale which are not to be reinforced, a foil sheet metal sheet 11 is attached to the base plate 1 close to the outer wall and is displaceable up and down. The pivot point of the sheet metal sheet 11 is provided on the sliding carriage 12 on the joint 13. A spring 14 in this articulated arm 15 ensures that the foil sheet metal 11 is in constant contact with the bale 9. When the press box 1, 2 is moved laterally in the direction of the arrow 16, the articulated arm 15 also passes over the stationary, inclined plane 17. This makes the articulated arm 15 automatically pivoted upwards when the bale is moved into the packaging station about the joint 13, as a result of which the foil sheet 11 places the edge section 10 'of the packaging material piece 4 upwards, namely against the end face of the bale 9. The foil sheet 11 can also rest against the bale 9 during the reinforcement process without interfering with this reinforcement process. After completion of this packaging process, the articulated arm 15 then moves slowly over the downward inclined plane 18 on the opposite side and is thereby pulled out of the space between the film section 10 and the film piece which has meanwhile been wrapped horizontally and re-welded.

Claims (7)

1. Fibre baling press having at lesat one pressure plate (1), which can be covered with a piece of film-like packaging material and has associated therewith a pressure box cover (2), which is preferably closed on all sides, characterised in that, for the alignment of the film (4), the pressure plate (1) has a trough-like configuration with wall portions (6') which protrude all round relative to the base.
2. Fibre baling press according to Claim 1, characterised in that, at the four inner lateral flanges (6') of the trough (6), the pressure plate (1) is provided with an inner radius which is used for the alignment of the film.
3. Fibre baling press according to Claim 1, having a pressure box, the base plate of which is in the form of a pressure plate and is detachably connected to the pressure box cover, characterised in that the base plate (1) has a trough-like cross-section which is greater than the cross- sectional area of the pressure box cover (2).
4. Fibre baling press according to Claim 3, characterised in that the lower end (5) of the internal wall of the pressure box cover (2) extends into the trough (6).
5. Fibre baling press according to Claim 4, characterised in that the lower end (5) of the internal wall of the pressure box cover (2) is disposed at a lateral and vertical distance from the trough-like base plate (1) when the pressure box cover (2) is connected to the base plate (1).
6. Fibre baling press according to Claims 1-5, characterised in that a film laying plate (11) is upwardly and downwardly displaceable on the external surface of the two narrow sides of the bale (9), which sides are not to be reinforced, when disposed on the base plate (1) closely adjacent the external wall.
7. Fibre baling press according to Claim 6, having a compressed bale (9), which is laterally displaceable into a packaging station in its compressed state for the subsequent all-round packaging with film (4) and retaining strips or the like, characterised in that the film laying plate (11) is pivotably retained on the underside of a displacement vehicle (12) through the intermediary of a pivotal lever (15), and its upward and downward movements are influenced by an inclined plane surface (17, 18) which is fixedly disposed on the displacement path.
EP88115821A 1987-09-25 1988-09-26 Fibre baling press Expired - Lifetime EP0308986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873732390 DE3732390A1 (en) 1987-09-25 1987-09-25 FIBER BALE PRESS
DE3732390 1987-09-25

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EP0308986A1 EP0308986A1 (en) 1989-03-29
EP0308986B1 true EP0308986B1 (en) 1991-01-16

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EP88115821A Expired - Lifetime EP0308986B1 (en) 1987-09-25 1988-09-26 Fibre baling press

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DE (2) DE3732390A1 (en)

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US4959948A (en) 1990-10-02
JPH01148496A (en) 1989-06-09
DE3732390A1 (en) 1989-04-06
DE3861577D1 (en) 1991-02-21
EP0308986A1 (en) 1989-03-29

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