EP0311764A1 - Baler - Google Patents

Baler Download PDF

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Publication number
EP0311764A1
EP0311764A1 EP88112525A EP88112525A EP0311764A1 EP 0311764 A1 EP0311764 A1 EP 0311764A1 EP 88112525 A EP88112525 A EP 88112525A EP 88112525 A EP88112525 A EP 88112525A EP 0311764 A1 EP0311764 A1 EP 0311764A1
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EP
European Patent Office
Prior art keywords
rollers
cover
press
baler
baler according
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.)
Granted
Application number
EP88112525A
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German (de)
French (fr)
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EP0311764B1 (en
Inventor
Manfred Westerfeld
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.)
Paal's Packpressen-Fabrik & Co KG GmbH
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Paal's Packpressen-Fabrik & Co KG GmbH
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Application filed by Paal's Packpressen-Fabrik & Co KG GmbH filed Critical Paal's Packpressen-Fabrik & Co KG GmbH
Priority to AT88112525T priority Critical patent/ATE63498T1/en
Publication of EP0311764A1 publication Critical patent/EP0311764A1/en
Application granted granted Critical
Publication of EP0311764B1 publication Critical patent/EP0311764B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
    • 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
    • B30B9/3021—Press rams

Definitions

  • baling press according to the preamble of claim 1.
  • Baling presses of this type in particular high-performance presses designed as channel baling presses, are to be designed robustly not only because of the required pressing pressures and spreading pressures, but also because of the amount of crushed material, dust and dirt that is difficult to control.
  • the penetration of moist paper dust must be taken into account, in particular in the case of balers for paper, the material to be pressed may be exposed to damp weather.
  • a critical area for this is the intermediate area between the press ram and the press box, which is essentially covered on the front by a press plate, but cannot be completely shielded against the ingress of paper dust.
  • the spaces between the press ram and the press box can absorb paper dust, which can compress and harden to a mass due to moisture and mechanical action of the moving parts, which can only be removed with heavy tools during maintenance.
  • this mass can, if it is not removed in time, enclose the rollers or block them on the underside in the manner of a brake wedge, which makes the press ram heavy becomes common and can be damaged as a result of grinding loads on the rollers and roller conveyors.
  • the object of the invention is to provide a baler which is press-compatible, i.e. Robust means in particular provide reliable protection against blocking and damage to the rollers by ingress of dust.
  • the cover is particularly advantageous for the cover to be guided around the rollers to such an extent that a contact area of the rollers remains free only on the underside.
  • the underneath support rollers near the press plate, which are particularly at risk, will have to be protected, but the cover can also enclose rollers located further back.
  • a preferred embodiment provides the form of a continuous block strip for the cover, which closes at the front with the press plate and which projects laterally opposite the rollers, so that it also has a slide shoe for lateral guidance of the in a version made of a lubricious material such as polyamide plastic Press ram in the press box forms.
  • baler designated 1 in the drawing is shown only in a partial section, in which the side view according to FIG passes with pressed paper material 5.
  • a press ram 6 can be advanced through the press box 3 into the press channel 4, the drive being effected via a piston rod 7 of a pressure medium-actuated actuator (not shown).
  • the press die 6 closes on the front side with a press plate 8 which is largely adapted to the cross section of the press box 3 and the press channel 4.
  • a cutting bar 9 is provided on the cutting line between the feed chute 2 and the press channel 4, which allows material protruding beyond the press plate 8 and the press channel 4 to be sheared off and thus to prevent blocking or jamming.
  • the press ram 6 is usually closed at the top by a cover plate (not shown), which largely prevents the entry of paper and dirt into cavities of the press ram 6.
  • These cavities include, in addition to vertical slits 10 on the front, which are used when strapping the finished bales with wire for the passage of wire and strapping tools are to be provided, lateral gaps between vertical side walls 11, 12 of the press ram and vertical side walls 13, 14 of the press box. On both sides there are clearances between the walls and thus spaces in which lower rollers 15, 16 (at a short distance behind the press plate 8 and 17, 18 at a greater distance from the press plate) are mounted on the plunger.
  • the plunger 6 is supported on the underside on two roller tracks, which are formed in the region of the plunger 3 by a full-surface bottom 19 and further back (not shown) by separate rails, in order to allow loose dust material to fall down there if possible can.
  • rollers 20, 21 are provided, which support the plunger in a downward manner against the upper roller tracks of the press box.
  • the press plate 8 must keep a movement gap to the walls of the press box 3 and the press channel 4 in order to avoid a grinding system and also a risk of jamming when material enters.
  • special recesses are necessary in certain cases if the pressure plate 8, for example, should pass into the press channel 4 retaining fingers 22, 23, 24, which prevent the pressed material from elastically returning to the press box.
  • the movement gap 27 prevents large material masses from sticking because of its narrowness, but at the same time it creates a self-cleaning effect in which any small dust masses are ejected with the rotation of the roller.
  • the block strips consist of a water-repellent and smooth plastic, which counteracts a build-up of dust on the plastic.
  • the block strips are also continued to the rear rollers 17, 18 and cover them at least in the area of the space between the rollers and on the upper side, again with a corresponding narrow movement gap between the block strip and roller.
  • the top of the block strips 25, 26 forms a continuous straight surface on which dirt material is relatively difficult to attach and from which it is easy to remove.
  • the width of the block strips 25, 26 is not only so wide that they completely cover the rollers 15, 16, 17 and 18. They are also provided with a side overhang on the rollers. They are also able to take over the function of sliding shoes or rubbing strips to improve the lateral guidance of the press ram and to reduce material wear, frictional forces and noise with a sliding system.
  • the block strips 25, 26 can also be designed with a lateral protrusion over the edge of the press plate 8, since the block strips to the side walls of the press box 3 and press channel 4 only have one need extremely small movement or sliding gap.
  • a wear-resistant, lubricious material such as polyamide is preferably provided as the plastic. To increase the stability of this material, it can also be made fiber-reinforced, for example with a reinforcement by glass fiber, carbon fiber or metal fibers.
  • the block bar is not fixed to plastic in terms of material.
  • Metal versions are also water-repellent and wear-resistant. Good glowing properties can be achieved with non-ferrous metals, especially bronze alloys, or gray cast iron. Long service lives can be achieved with steel alloys, which moreover allow the cover to be welded on instead of screw mounting or the like.
  • the cover can be formed in several parts or in multiple layers from different materials, for example in order to design an outer cover plate for the function of a sliding or wearing surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Paper (AREA)

Abstract

The baler (1) for paper and similar fibre-containing and moisture-absorbing material comprises a press box (3) which can be filled from above and a press ram (6) which can be moved forward in said box from a withdrawn rest position by means of a drive and which possesses, behind a pressing plate (8) which essentially covers the cross-section of the press box (3), laterally concealed rollers (15, 17) for supporting the press ram (6) on roller conveyors (base 19) of the press box (3). To protect the rollers (15, 17) from the risk of blocking as a result of dusty material, which is compressed and hardens in the moist state, the baler (1) is designed in such a way that, of the rollers (15, 17), at least the rollers (15) which lie closest to the press plate are substantially enclosed on their circumferential side by a cover (25) of a smooth, water-rejecting plastic and/or metal, the cover (25) leaving only a narrow gap for movement with respect to the rollers (15, 17). Such a cover preferably has the basic form of a continuous ingot strip which possesses recesses for the rollers, but, moreover, projects laterally with respect to the rollers, in order to form a sliding block between the press ram (6) and the press box (3). <IMAGE>

Description

Die Erfindung betrifft eine Ballenpresse nach dem Oberbegriff des Anspruchs 1. Ballenpressen dieser Art, insbesondere als Kanalballenpresse ausgebildete Hochleistungspressen, sind nicht nur wegen der geforderten Pressdrücke und Spreizdrücke, sondern auch wegen des schwer kontrollierbaren Anfalls an zerkleinertem Material, Staub und Schmutz robust auszulegen. Insbesondere bei Ballenpressen für Papier, deren Preßgut feuchter Witterung ausgesetzt sein kann, ist dem Eindringen feuchten Papierstaubs Rechnung tragen.The invention relates to a baling press according to the preamble of claim 1. Baling presses of this type, in particular high-performance presses designed as channel baling presses, are to be designed robustly not only because of the required pressing pressures and spreading pressures, but also because of the amount of crushed material, dust and dirt that is difficult to control. The penetration of moist paper dust must be taken into account, in particular in the case of balers for paper, the material to be pressed may be exposed to damp weather.

Ein hierfür kritischer Bereich ist der Zwischenbereich zwischen Preßstempel und Preßkasten, der zwar im wesentlichen vordersei­tig durch eine Preßplatte abgedeckt ist, jedoch nicht vollstän­dig gegen das Eindringen von Papierstaub abgeschirmt werden kann.A critical area for this is the intermediate area between the press ram and the press box, which is essentially covered on the front by a press plate, but cannot be completely shielded against the ingress of paper dust.

In ungünstigen Fällen, insbesondere bei feuchter Witterung, können die Zwischenräume zwischen Preßstempel und Preßkasten Papierstaub aufnehmen, der sich durch Feuchtigkeit und mecha­nische Einwirkung der bewegten Teile zu einer Masse verdichten und verhärten kann, die im Wartungsfall nur noch mit schweren Werkzeugen zu beseitigen ist.In unfavorable cases, especially in damp weather, the spaces between the press ram and the press box can absorb paper dust, which can compress and harden to a mass due to moisture and mechanical action of the moving parts, which can only be removed with heavy tools during maintenance.

Diese Masse kann aber andererseits, wenn sie nicht rechtzeitig entfernt wird, die Rollen umschließen oder unterseitig nach Art eines Bremskeils blockieren, wodurch der Preßstempel schwer­ gängig wird und infolge schleifender Beanspruchungen an den Rollen und Rollenbahnen Schaden nehmen kann.On the other hand, this mass can, if it is not removed in time, enclose the rollers or block them on the underside in the manner of a brake wedge, which makes the press ram heavy becomes common and can be damaged as a result of grinding loads on the rollers and roller conveyors.

Aufgabe der Erfindung ist es, eine Ballenpresse zu schaffen, die mit pressengemäßen, d.h. insbesondere robusten Mitteln einen zuverlässigen Schutz gegen eine Blockierung und Beschädi­gung der Rollen durch eindringenden Staub schafft.The object of the invention is to provide a baler which is press-compatible, i.e. Robust means in particular provide reliable protection against blocking and damage to the rollers by ingress of dust.

Gemäß der Erfindung für diese Aufgabe von einer Ballenpresse nach dem Oberbegriff des Anspruchs 1 ausgehend mit den kenn­zeichnenden Merkmalen des Anspruchs 1 gelöst. Maßgeblich für die erfindungsgemäße Lösung ist die Erkenntnis, daß das Ein­dringen von Staub in den Zwischenbereich zwischen Preßstempel und Preßkasten auch mit aufwendigen Mitteln nicht verhindert werden kann. Dementsprechend ist die Wirkung der Abdeckung zunächst einmal darauf gerichtet, die Einwirkung (feuchten) Staubs auf die Rollen abzublocken und andererseits auch eine Reibeinwirkung auf Staub-Nester oder Staub-Pfropfen zu vermei­den, um eine gefährliche Verdichtung und Verhärtung dieser Pfropfen zu unterbinden. Indem die Abdeckung die jeweilige Rolle eng umschließt, verhindert sie eine Massierung von Staub­material und erzeugt zwischen Abdeckung und Rolle einen schlei­fenden Mitnahmeeffekt, der eine Selbstreinigungswirkung erzielt. Hierzu ist es von Vorteil, wenn das Material der Abdeckung glatt und wasserabweisend ist, so daß ein Anhaften von Schmutz nicht vom Material her gefördert wird.According to the invention for this task from a baler according to the preamble of claim 1 starting with the characterizing features of claim 1 solved. Decisive for the solution according to the invention is the knowledge that the penetration of dust into the intermediate area between the press ram and the press box cannot be prevented even with complex means. Accordingly, the effect of the cover is initially aimed at blocking the action of (moist) dust on the rollers and, on the other hand, also avoiding rubbing on dust nests or dust plugs in order to prevent dangerous compression and hardening of these plugs. By tightly enclosing the respective roll, it prevents massaging of dust material and creates a dragging effect between the cover and the roll, which achieves a self-cleaning effect. For this purpose, it is advantageous if the material of the cover is smooth and water-repellent, so that dirt does not adhere to the material.

Besonders vorteilhaft wird die Abdeckung um die Rollen so weit herumgeführt, daß lediglich an der Unterseite noch ein Auf­standsbereich der Rollen freibleibt. In erster Linie werden die besonders gefährdeten nahe der Preßplatte gelegenen unter­seitigen Stützrollen zu schützen sein, jedoch kann die Abdeckung auch weiter hinten gelegene Rollen umschließen.It is particularly advantageous for the cover to be guided around the rollers to such an extent that a contact area of the rollers remains free only on the underside. Primarily, the underneath support rollers near the press plate, which are particularly at risk, will have to be protected, but the cover can also enclose rollers located further back.

Eine bevorzugte Ausführungsform sieht die Form einer durchlau­fenden Blockleiste für die Abdeckung vor, die vorderseitig mit der Preßplatte abschließt und die seitlich gegenüber den Rollen vorsteht, so daß sie in einer Ausführung aus einem gleit­fähigen Material wie etwa Polyamid-Kunststoff auch einen Gleit­schuh zur seitlichen Führung des Preßstempels im Preßkasten bildet.A preferred embodiment provides the form of a continuous block strip for the cover, which closes at the front with the press plate and which projects laterally opposite the rollers, so that it also has a slide shoe for lateral guidance of the in a version made of a lubricious material such as polyamide plastic Press ram in the press box forms.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der nachfolgenden Beschreibung, in der ein Ausführungsbeispiel des Gegenstands der Erfindung anhand einer Zeichnung näher erläutert ist. In der Zeichnung zeigen in je­weils schematisierter schnittbildlicher Darstellung

  • Fig. 1 Seitenansicht von Preßkasten und Preßstempel einer Ballenpresse (im Schnitt nach Linie I-I in Fig.2) und
  • Fig. 2 schnittbildliche Draufsicht nach Linie II-II in Fig. 1.
Further features and advantages of the invention result from the claims and the following description, in which an embodiment of the object of the invention is explained in more detail with reference to a drawing. The drawings show a schematic sectional illustration in each case
  • Fig. 1 side view of the press box and ram of a baler (in section along line II in Fig.2) and
  • FIG. 2 shows a sectional top view along line II-II in FIG. 1.

Die in der Zeichnung insgesamt mit 1 bezeichnete Ballenpresse ist zur Vereinfachung nur in einem Teilausschnitt dargestellt, bei dem die Seitenansicht nach Fig. 1 einen Einfüllschacht 2 erkennen läßt, an den sich unterseitig ein Preßkasten 3 an­schließt, der seinerseits horizontal nach vorne in einen Preß­kanal 4 mit gepreßt anstehendem Papiermaterial 5 übergeht. Durch den Preßkasten 3 hindurch ist ein Preßstempel 6 bis in den Preßkanal 4 hinein vorfahrbar, wobei der Antrieb über eine Kolbenstange 7 eines druckmittelbetätigten Stellgliedes (nicht dargestellt) erfolgt. Der Preßstempel 6 schließt vorderseitig mit einer Preßplatte 8 ab, die dem Querschnitt des Preßkastens 3 und des Preßkanals 4 weitgehend angepaßt ist.For the sake of simplicity, the baler designated 1 in the drawing is shown only in a partial section, in which the side view according to FIG passes with pressed paper material 5. A press ram 6 can be advanced through the press box 3 into the press channel 4, the drive being effected via a piston rod 7 of a pressure medium-actuated actuator (not shown). The press die 6 closes on the front side with a press plate 8 which is largely adapted to the cross section of the press box 3 and the press channel 4.

An der Schnittlinie zwischen Einfüllschacht 2 und Preßkanal 4 ist ein Schneidbalken 9 vorgesehen, der es erlaubt, über die Preßplatte 8 und den Preßkanal 4 hinausstehendes Material abzuscheren und damit ein Verblocken bzw. Verklemmen zu vermei­den.A cutting bar 9 is provided on the cutting line between the feed chute 2 and the press channel 4, which allows material protruding beyond the press plate 8 and the press channel 4 to be sheared off and thus to prevent blocking or jamming.

Der Preßstempel 6 ist üblicherweise oberseitig durch ein Deck­blech (nicht dargestellt) abgeschlossen, welches den Eintritt von Papier und Schmutz in Hohlräume des Preßstempels 6 weitge­hend verhindert. Zu diesen Hohlräumen gehören neben vordersei­tigen vertikalen Schlitzen 10, die beim Umschnüren der fertigen Ballen mit Draht für den Durchtritt von Draht und Umschnürungs­ werkzeugen vorzusehen sind, seitliche Zwischenräume zwischen vertikalen Seitenwänden 11,12 des Preßstempels und vertikalen Seitenwänden 13,14 des Preßkastens. Beidseitig sind hier Ab­stände zwischen den Wänden und damit Zwischenräume geschaffen, in denen untere Rollen 15,16 (in kurzem Abstand hinter der Preßplatte 8 und 17,18 in größerem Abstand zur Preßplatte) am Preßkolben gelagert sind. Mit diesen vier Rollen stützt sich der Preßkolben 6 unterseitig auf zwei Rollenbahnen ab, die im Bereich des Preßkolbens 3 durch einen vollflächigen Boden 19 und weiter hinten (nicht dargestellt) durch getrennte Schienen gebildet werden, um dort nach Möglichkeit loses Staub­material nach unten ausfallen lassen zu können.The press ram 6 is usually closed at the top by a cover plate (not shown), which largely prevents the entry of paper and dirt into cavities of the press ram 6. These cavities include, in addition to vertical slits 10 on the front, which are used when strapping the finished bales with wire for the passage of wire and strapping tools are to be provided, lateral gaps between vertical side walls 11, 12 of the press ram and vertical side walls 13, 14 of the press box. On both sides there are clearances between the walls and thus spaces in which lower rollers 15, 16 (at a short distance behind the press plate 8 and 17, 18 at a greater distance from the press plate) are mounted on the plunger. With these four rollers, the plunger 6 is supported on the underside on two roller tracks, which are formed in the region of the plunger 3 by a full-surface bottom 19 and further back (not shown) by separate rails, in order to allow loose dust material to fall down there if possible can.

An der Oberseite des Preßkolbens 6 sind weitere Rollen 20,21 vorgesehen, die den Preßkolben bei Anlage gegen oberseitige Rollenbahnen des Preßkastens niederhaltend abstützen.On the upper side of the plunger 6, further rollers 20, 21 are provided, which support the plunger in a downward manner against the upper roller tracks of the press box.

Es versteht sich ohne weiteres, daß die Preßplatte 8 zu den Wänden des Preßkastens 3 und des Preßkanals 4 einen Bewegungs­spalt freihalten muß, um eine schleifende Anlage und auch eine Verklemmungsgefahr bei eintretendem Material zu vermeiden. Darüber hinaus sind besondere Ausnehmungen in bestimmten Fällen nötig, wenn die Preßplatte 8 beispielsweise in den Preßkanal 4 hineinragende Rückhaltefinger 22,23,24 passieren soll, die das gepreßte Material daran hindern, elastisch in den Preßkasten zurückzukehren.It goes without saying that the press plate 8 must keep a movement gap to the walls of the press box 3 and the press channel 4 in order to avoid a grinding system and also a risk of jamming when material enters. In addition, special recesses are necessary in certain cases if the pressure plate 8, for example, should pass into the press channel 4 retaining fingers 22, 23, 24, which prevent the pressed material from elastically returning to the press box.

Die so entstehenden Spalte und Öffnungen zwischen Preßplatte 8 und den Wandungen von Preßkasten 3 und Preßkanal 4 erlauben notgedrungenermaßen den Durchtritt von Staub oder feuchter Papiermassen in den für die Rollen freizuhaltenden Zwischen­raum. Unter Feuchtigkeitseinwirkung kann sich dabei Papiermasse oder sonstiges faserhaltiges und feuchtigkeitsaufnehmendes Material während der Arbeit der Ballenpresse verdichten und verfestigen und eine steinharte Konsistenz annehmen, die die Rollen blockiert. Gefährdet sind dabei die untenliegenden Rollen 15,16,17 und 18.The resulting gaps and openings between the press plate 8 and the walls of the press box 3 and press channel 4 inevitably allow the passage of dust or moist paper mass into the space to be kept free for the rolls. When exposed to moisture, paper pulp or other fibrous and moisture-absorbing material can condense and solidify during the work of the baler and assume a rock-hard consistency that blocks the rollers. The rollers 15, 16, 17 and 18 below are at risk.

Der Gefahr ist gemäß der Erfindung dadurch wirksam begegnet, daß die Rollen 15,17 und 16,18 jeweils paarweise durch eine Blockleiste 25 bzw. 26 abgedeckt sind. Diese blockleistenförmige Abdeckung 25 bzw. 26 umschließt insbesondere die vornliegenden, der Preßplatte 8 benachbarten Rollen 15,16 bis auf einen schma­len Bewegungsspalt 27. Damit werden die Rollen nicht lediglich gegen einen Staubbefall abgedeckt, es wird insbesondere verhin­dert, daß sich Pfropfen von Staubmasse bilden und im Zusammen­spiel mit der Rolle verdichten. In dieser Hinsicht sind die Blockleisten 25,26 bis an die Preßplatte 8, an deren Rückseite anschließend, durchgezogen.The danger is effectively countered according to the invention in that the rollers 15, 17 and 16, 18 each in pairs by one Block bar 25 and 26 are covered. This block strip-shaped cover 25 and 26, in particular, encloses the rollers 15, 16 adjacent to the pressing plate 8 except for a narrow movement gap 27. The rollers are therefore not only covered against dust, it in particular prevents the formation of plugs of dust and densify in interaction with the role. In this regard, the block strips 25, 26 are pulled through to the pressure plate 8, on the rear side of which.

Der Bewegungsspalt 27 verhindert schon aufgrund seiner Enge, daß sich größere Materialmassen festsetzen, er schafft aber gleichzeitig einen Selbstreinigungseffekt, bei dem etwaige kleine Staubmassen mit der Umdrehung der Rolle ausgeworfen werden.The movement gap 27 prevents large material masses from sticking because of its narrowness, but at the same time it creates a self-cleaning effect in which any small dust masses are ejected with the rotation of the roller.

Hierzu ist es vorteilhaft, daß die Blockleisten aus einem was­serabweisenden und glatten Kunststoff bestehen, was einem Anh=f­ten von Staubmasse an dem Kunststoff entgegenwirkt.For this purpose, it is advantageous that the block strips consist of a water-repellent and smooth plastic, which counteracts a build-up of dust on the plastic.

Die Blockleisten sind auch zu den hintenliegenden Rollen 17,18 weitergeführt und decken diese zumindest im Bereich des Zwi­schenraumes zwischen den Rollen und oberseitig ab, wobei wieder­um ein entsprechender schmaler Bewegungsspalt zwischen Block­leiste und Rolle vorgesehen ist. Die Oberseite der Blockleisten 25,26 bildet eine durchgehende gerade Fläche, an der sich Schmutzmaterial relativ schwer festsetzt und von der es leicht zu entfernen ist.The block strips are also continued to the rear rollers 17, 18 and cover them at least in the area of the space between the rollers and on the upper side, again with a corresponding narrow movement gap between the block strip and roller. The top of the block strips 25, 26 forms a continuous straight surface on which dirt material is relatively difficult to attach and from which it is easy to remove.

Die Blockleisten 25,26 sind in ihrer Breite nicht nur so weit ausgelegt, daß sie die Rollen 15,16,17 und 18 vollständig über­decken. Sie sind darüber hinaus mit einem seitlichen Überstand über die Rollen versehen. Damit sind sie gleichzeitig in der Lage, die Funktion von Gleitschuhen oder Scheuerleisten zu übernehmen, um die seitliche Führung des Preßstempels zu verbes­sern und mit einer gleitenden Anlage Materialabnutzung, Rei­bungskräfte und Geräusche herabzusetzen. Die Blockleisten 25,26 können dazu auch mit einem seitlichen Überstand über den Rand der Preßplatte 8 ausgelegt werden, da die Blockleisten zu den Seitenwänden des Preßkastens 3 und Preßkanals 4 nur noch einen äußerst geringen Bewegungs- oder Gleitspalt benötigen. Für diese Funktion ist als Kunststoff vorzugsweise ein verschleiß­festes, gleitfähiges Material wie Polyamid vorgesehen. Zur Erhöhung der Standfestigkeit dieses Materials kann dieses dar­über hinaus faserverstärkt ausgebildet sein, etwa mit einer Verstärkung durch Glasfaser, Kohlefaser oder Metallfasern.The width of the block strips 25, 26 is not only so wide that they completely cover the rollers 15, 16, 17 and 18. They are also provided with a side overhang on the rollers. They are also able to take over the function of sliding shoes or rubbing strips to improve the lateral guidance of the press ram and to reduce material wear, frictional forces and noise with a sliding system. For this purpose, the block strips 25, 26 can also be designed with a lateral protrusion over the edge of the press plate 8, since the block strips to the side walls of the press box 3 and press channel 4 only have one need extremely small movement or sliding gap. For this function, a wear-resistant, lubricious material such as polyamide is preferably provided as the plastic. To increase the stability of this material, it can also be made fiber-reinforced, for example with a reinforcement by glass fiber, carbon fiber or metal fibers.

Grundsätzlich ist die Blockleiste allerdings nicht vom Material her auf Kunststoff festgelegt. Ausführungen in Metall sind gleichfalls wasserabweisend und verschleißfest. Gute Gluteigen­schaften sind mit Buntmetallen, insbesondere Bronzelegierungen, oder Grauguß erzielbar. Hohe Standzeiten lassen sich mit Stahl­legierungen erzielen, die überdies ein Anschweißen der Abdeckung statt einer Schraubmontage oder dgl. Verbindungstechnik zulas­sen. Ferner kann die Abdeckung mehrteilig bzw. mehrschichtig aus verschiedenen Materialien gebildet sein, um etwa eine außen­liegende Deckplatte auf die Funktion einer Gleit- oder Schleiß­fläche auszulegen.In principle, however, the block bar is not fixed to plastic in terms of material. Metal versions are also water-repellent and wear-resistant. Good glowing properties can be achieved with non-ferrous metals, especially bronze alloys, or gray cast iron. Long service lives can be achieved with steel alloys, which moreover allow the cover to be welded on instead of screw mounting or the like. Furthermore, the cover can be formed in several parts or in multiple layers from different materials, for example in order to design an outer cover plate for the function of a sliding or wearing surface.

Claims (13)

1. Ballenpresse für Papier und dergleichen faserhaltiges und feuchtigkeitsaufnehmendes Material mit einem von oben be­füllbaren Preßkasten und einem in diesem aus einer zurückgezoge­nen Ruhestellung mittels eines Antriebs vorbeweglichen Preßstem­pel, der hinter einer den Querschnitt des Preßkastens im wesent­lichen abdeckenden Preßplatte seitlich verdeckt angeordnete Rollen zur Abstützung des Preßstempels auf Rollenbahnen des Preßkastens aufweist, dadurch gekennzeichnet, daß von den Rollen (15,16,17,18) zumindest die der Preßplatte nächstliegenden Rollen (15,16) umfangsseitig durch eine Abdeckung (25,26) weit­gehend umschlossen sind, wobei die Abdeckung zu den Rollen (15,16) lediglich einen schmalen Bewegungsspalt (27) freiläßt.1. Baler for paper and the like fibrous and moisture-absorbing material with a press box that can be filled from above and a press die that can be moved in this from a retracted rest position by means of a drive, the press plate arranged behind the cross section of the press box, essentially concealed rollers for supporting the press die on roller conveyors of the press box, characterized in that at least the rollers (15, 16, 17, 18) closest to the press plate are largely enclosed on the circumference by a cover (25, 26), the cover being closed leaves the rollers (15, 16) only a narrow movement gap (27). 2. Ballenpresse nach Anspruch 1, dadurch gekennzeichnet, daß die Abdeckung (25,26) die Rollen (15,16) allseitig mit Ausnahme des unterseitigen Aufstandsbereichs umschließt.2. Baling press according to claim 1, characterized in that the cover (25, 26) surrounds the rollers (15, 16) on all sides with the exception of the contact area on the underside. 3. Ballenpresse nach Anspruch 1 oder 2, dadurch gekennzeich­net, daß die Abdeckung (25,26) auch jeweils der Preßplatte (8) weiter abliegende Rollen (17,18) umschließt.3. Baling press according to claim 1 or 2, characterized in that the cover (25, 26) also surrounds the press plate (8) further away rollers (17, 18). 4. Ballenpresse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Abdeckung (25,26) in der Grundform einer durchlaufenden Blockleiste ausgebildet ist, die Ausspa­rungen für die Rollen (15,16,17,18) aufweist.4. Baler according to one of claims 1 to 3, characterized in that the cover (25,26) is formed in the basic shape of a continuous block strip which has cutouts for the rollers (15,16,17,18). 5. Ballenpresse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Abdeckung (25,26) vorderseitig mit der Preßplatte (8) abschließt.5. Baler according to one of claims 1 to 4, characterized in that the cover (25, 26) on the front side the press plate (8) completes. 6. Ballenpresse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Abdeckung (25,26) seitlich gegenüber den Rollen als Gleitschuh vorsteht.6. Baler according to one of claims 1 to 5, characterized in that the cover (25, 26) projects laterally with respect to the rollers as a sliding shoe. 7. Ballenpresse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Abdeckung (25,26) aus einem verschleiß­festen, gleitfähigen Kunststoff besteht.7. Baler according to one of claims 1 to 6, characterized in that the cover (25,26) consists of a wear-resistant, lubricious plastic. 8. Ballenpresse nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Abdeckung (25,26) aus einem faserver­stärkten Kunststoff besteht.8. Baler according to one of claims 1 to 7, characterized in that the cover (25,26) consists of a fiber-reinforced plastic. 9. Ballenpresse nach Anspruch 7 oder 8, dadurch gekennzeich­net, daß der Kunststoff ein Polyamid ist.9. Baler according to claim 7 or 8, characterized in that the plastic is a polyamide. 10. Ballenpresse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Abdeckung zumindest teilweise aus Metall besteht.10. Baler according to one of claims 1 to 6, characterized in that the cover consists at least partially of metal. 11. Ballenpresse nach Anspruch 10, dadurch gekennzeichnet, daß die Abdeckung zumindest an einer nach außen gewandten Ober­fläche aus einer Bronzelegierung besteht.11. Baler according to claim 10, characterized in that the cover consists of a bronze alloy at least on an outwardly facing surface. 12. Ballenpresse nach Anspruch 10, dadurch gekennzeichnet, daß die Abdeckung zumindest an einer nach außen gewandten Ober­fläche aus Grauguß besteht.12. Baler according to claim 10, characterized in that the cover consists of gray cast iron at least on an outwardly facing surface. 13. Ballenpresse nach Anspruch 10, dadurch gekennzeichnet, daß das Metall eine Stahllegierung ist.13. Baler according to claim 10, characterized in that the metal is a steel alloy.
EP88112525A 1987-10-15 1988-08-02 Baler Expired - Lifetime EP0311764B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88112525T ATE63498T1 (en) 1987-10-15 1988-08-02 BALER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873734936 DE3734936A1 (en) 1987-10-15 1987-10-15 BALING PRESS
DE3734936 1987-10-15

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EP0311764A1 true EP0311764A1 (en) 1989-04-19
EP0311764B1 EP0311764B1 (en) 1991-05-15

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EP (1) EP0311764B1 (en)
AT (1) ATE63498T1 (en)
DE (2) DE3734936A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0718094A3 (en) * 1994-12-21 1997-03-05 Hermann Schwelling Plunger guiding in waste compactor
US7707932B1 (en) 2009-05-05 2010-05-04 Cnh America Llc Staggered plunger tail with improved wear surface for a small square baler
US10051792B2 (en) 2014-01-30 2018-08-21 Cnh Industrial America Llc Agricultural baler with a plunger slot belt

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445632C2 (en) * 1994-12-21 1999-09-30 Hermann Schwelling Waste press
DE19600039C2 (en) * 1996-01-02 1999-05-06 Hermann Schwelling Waste - baler

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813393A (en) * 1955-12-17 1959-05-13 Bamfords Ltd Improvements in or relating to agricultural balers
GB2145968A (en) * 1983-09-05 1985-04-11 Fortschritt Veb K Baling press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813393A (en) * 1955-12-17 1959-05-13 Bamfords Ltd Improvements in or relating to agricultural balers
GB2145968A (en) * 1983-09-05 1985-04-11 Fortschritt Veb K Baling press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Unexamined Applications, Field M, Band 7, Nr. 159, 13. Juli 1983 The Patent Office Japanese Government page 37 M 228 *Kokai-No. 58-65 951 (Bandou Kikou)* *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0718094A3 (en) * 1994-12-21 1997-03-05 Hermann Schwelling Plunger guiding in waste compactor
US7707932B1 (en) 2009-05-05 2010-05-04 Cnh America Llc Staggered plunger tail with improved wear surface for a small square baler
CN102395261A (en) * 2009-05-05 2012-03-28 Cnh比利时股份有限公司 Agricultural baler with improved plunger guide
CN102395261B (en) * 2009-05-05 2014-03-12 Cnh比利时股份有限公司 Agricultural baler with improved plunger guide
US10051792B2 (en) 2014-01-30 2018-08-21 Cnh Industrial America Llc Agricultural baler with a plunger slot belt

Also Published As

Publication number Publication date
ATE63498T1 (en) 1991-06-15
DE3734936A1 (en) 1989-05-03
DE3862844D1 (en) 1991-06-20
EP0311764B1 (en) 1991-05-15

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