EP1336566B1 - Baler - Google Patents

Abstract

The bale press has a press box (2) with a vertical shaft (2a) and a press area (4) above the base (9) and an upper filling area (3), in which a press plate is movable. The shaft is formed by a rear wall (5) and two opposing side walls, together with at least one front door (8) closing the press area. At least one guide unit is provided on or in the base of the shaft for accommodation/guiding of binding material (16). One end of the guide unit faces the rear wall and the other end faces the front side of the base. Passing through the ends is a groove-type channel. The guide unit is of one-piece construction, or can comprise several parts. The groove-type channel has a dovetail or biconcave cross-section.

Description

The invention relates to a baler, in particular vertical Type, with guide units for Abbindmittel, in the Waste materials, such as used containers and others Material of paper, cardboard, plastic and similar materials or metal cans which are used for storage purposes, packaging and transport, as well as in particular used office supplies from the aforementioned Materials compacted for volume reduction - be compressed. In particular, the Invention on means provided on or in a baler, the improved uptake and / or leadership of Allow bonding agents and also cost-saving on the Manufacturing costs and consumption costs act.

Known is a baler according to US 4,041,856, which has a press box, with a substantially vertical shaft having above its bottom a pressing region and an overlying filling region in which a pressing plate is movable, wherein the shaft of a rear wall and two each other opposite side walls, as well as an at least the pressing area final front door is formed, and in which on the inside of the bottom and partly on the rear wall inside means for guiding of setting means are provided.
In this baler is after pressing of the bale, before the last press stroke, inserted through the existing in the door of the baler slots each one Abbindemittel in the guide channels and nachgeschoben until the same ballenrückseitig appears on the upper surface of the bale. Then this Abbindemittel is pulled forward and made after completion of the last Presshubes, located in the lower pressing position pressing plate, the lashing of the finished pressed bale. The disadvantage here is in particular that the inserted into the guide channels ends of the Abbindemittels can emerge during insertion from the guide channel and get caught in the bale; multiple, time-consuming insertion and partial withdrawal are necessary here.

From US 4,182,236 a baler is also known, at the on the inside of the floor also ledges from the front to Rear are provided extending, each one groove-like groove for receiving Abbindemittel have. In the Rear wall of the press are aligned with the leading grooves Slots provided so that the setting agent during the Carrying around the bale at least in the area of Rear wall not directly along the bale surface must be pushed, what the danger of getting caught End of the setting agent in the bale decreases. The disadvantage is here However, that during the leadership of Abbindemittels to the Bales around, the operator temporarily behind the baler must occur, creating additional footprint (clearance) for a press workstation must be provided.

A baler according to US 4,232,599 is similar to The aforementioned, however, the groove-like grooves for guidance in Ground area in the surface of the bottom of the press shaft incorporated, thereby reducing the cost of a Baler be adversely affected.

Also known and customary in vertical balers is that Bonding agents, such as cord, fiber tape or strapping wire, in the intended number, before the beginning of each Presszyklusses, at least in sections, in the shaft of the Press box are inserted. To position this Setting agents are said to be on or in the soil and / or additional on or in the back wall of the press shaft of the Press box provided means.

The setting agent is characterized by that during the pressing process, especially in the area of the bottom, the press shaft before protected from excessive mechanical stress. A such arrangement is in the baler after the DE 44 46 748 C2. In this baler are outside the back wall of which supply rolls are held with setting agent, causing the baler at the place of installation on the wall can be adjusted, creating the required footprint smaller, than previously known, could be kept.

After DE 298 12 539 U1 is another baler known, in which the setting agent on supply rolls above of the press shaft is mounted to the front side. From here the bonding agent is lowered down to the front of the Press plate out, there deflected, along the press plate to whose rear area led, there again deflected and in Channels of the rear wall of the press to the floor area and from there in channels along the floor to the lower front led the press plate where it is fixed before the press becomes. So that the inserted setting agent during the Pressing process is not tightened, is below the Stock rolls, before entering the press shaft area respectively arranged a band brake. During the movement of Pressing plate undergoes the Abbindemittel a permanent Tensile load. At least during the first time of one Presszyklusses, so if on the bottom area of the Press shaft not yet much pressed waste material is, So the net mass of the not yet finished bale very low is, the deflection of the binding agent in the Transition zone from the back wall to the bottom of the Press shaft due to the upward movement of the Press plate existing tensile stress in the direction of Pressed area pulled. There is a risk that the Abbindemittel from the bottom-side guide means slips out and at the next pressing movement of the Pressing stamp the setting agent unnecessarily mechanically is claimed or at one point on the bottom side Surface of the bale is pressed at the during the Pressing no band channel was formed. Especially with the first pressing strokes this adverse phenomenon is still permanently available.

The object of the invention is therefore, for a Baler vertical design new building materials and their To find arrangement with which the insertion of the binding agent in preparation for the setting of finished pressed bales can be simplified with simultaneous warranty a safer positioning of the bonding agent in the area the bottom of the press shaft, with simultaneous attention the cost optimization for the production costs of Baler, as well as the consumption costs during the Use of the baler.

The object is achieved by a baler with the features of claim 1, in particular by solved its characteristic features. The subordinate ones Claims 2 to 13 disclose further developments and Embodiment variants of the invention. More special details to developments or variants of the invention can be taken from the description and the drawings.

The invention is fundamentally of a baler consisting of a press box, with a substantially vertical shaft, which above its bottom one Pressing area and has an overlying filling area, in which a press plate is movable, the shaft of a back wall and two opposite ones Side walls and one at least the pressing area Closing front door is formed, and at least on or at least one guide unit in the bottom of the shaft is provided for receiving / guiding Abbindemittel whose one end to the rear wall and the other end to the Front of the bottom shows and one the ends passing through groove-like groove, in which the bottom side portion of the setting agent is performed.

The new baler is characterized in particular by that with few structural means a safer positioning Setting agents in the area of the bottom of the shaft is guaranteed. This is done in particular by the special structural arrangement of the guide unit / s in the Area of the bottom of the shaft. At least the groove-like Groove of the guidance unit is punctual and / or partially offset laterally to an imaginary, by the Ends of the guide unit arranged predetermined straight lines. Through these punctual and / or sectional lateral Offset to one through the endpoints of the guide units imaginary straights, at least every curing agent undergoes a, in the horizontal plane transversely acting, bending stress within its elastic limits. This will be a non-positive, but at any time by a defined Tensile stress easily releasable positioning of the Abbindemittels achieved in the guide unit.

After a further training is provided that the Leadership unit itself, together with the provided in her groove-like groove, selectively and / or in sections laterally to said predetermined line is offset, wherein the laterally offset points or sections of Guide unit to the imaginary straight line alternating are arranged.

Each intended guide unit can be made in one piece or be formed in several parts. After the latter type includes the Guide unit preferably at least two strips, the with spaced bars under inclusion each of the soil located between them, the groove-like Forming a groove.

To lock the after inserting the Abbindemittels in the Guide unit protruding from the press area on the door side End of the bonding agent, is at the front of the floor, each associated with a guide unit and laterally of these arranged, a labyrinth having wire holder so provided that the end of the Abbindemittels to be locked during locking and its temporary locking his Does not exceed the elastic limit.

In extension, it is envisaged that the groove-like groove a U-shaped, dovetail-shaped, bi-concave or has the same effect designed cross-section.

The present invention can be used both in the use of cut-off (finite) setting agent and in the removal of setting agent from the baler-mounted supply roll.
The invention preferably applies to baling presses in which the middle section of the shortened setting means in each case passes outwards through a slot in the rear wall, essentially describing an arc, in a compensating space provided behind the rear wall.

The arranged in the region of the bottom guide units So they are designed to be easy to insert handle and inlaid sections of the bonding agent in remain the respective section of the leadership unit and the Bonding agent during pressing much safer than previously lies in the bottom guide units.

The setting agent is a rigid setting agent used appropriate material, preferably Strapping wire, wherein preferably one of the ends in shape an eyelet is formed; the use of plastic tape, with and without reinforcing fibers or filaments, e.g. Metal filaments, or PET tape, is also within the scope of the invention. there is understood to mean rigid that the material used, also referred to the cross section used, although in itself stiff, but at the same time still flexible (bendable).

By this fundamentally new conception is asked Task completed. In addition, the required, so-called Footprint of the baler kept low; Strength Deflections and small bending radii become the binding agent avoided. Compared to known solutions is the present new arrangement of setting agents also minimizes costs.

Further advantages in terms of production costs for a Baler of said type as well as for the operating costs this baler and the required so-called Installation surface will be by means of the following extensions achieved to the invention.

According to another development, the range to the inside pointing ends of the strips of the bottom side Guide units each into the slots of the rear wall into it. Preferably, said ends of the strips are included bent or angled upwards; Alternatively, you can For this corner special angle parts are provided. This version provides additional protection for the Setting agent in the transition area from the floor to the back wall and may prevent under extreme conditions occurring pressure loads in this corner area.

Elongated setting agents, such as. B. so-called Ösendraht are after another extension in a preferably in the field the back wall provided for forerunner. This In essence, a forwarder becomes a crosswise one arranged quiver and one at ground level sideways one of the side walls of the press box arranged bracket educated. The one end of each bonding agent is so lying across in the quiver while the other end by means of the said bow turned upwards in about 90 ° is.

Figur 1:

die neue Ballenpresse in einer Seitenansicht im Teilschnitt;

Figur 2:

eine Sicht von vorn in den Schacht der Ballenpresse;

Figur 3:

eine Draufsicht auf den Presskasten gemäß der in Figur 2 markierten Schnittlinie III-III ;

Figur 3a und Figur 3b

Ansichten des Details A aus Figur 3;

Figur 4 und Figur 5

eine Ansicht wie in Figur 3 mit Varianten der neuen bodenseitigen Führungseinheiten;

Figur 6

das neue Prinzip der bodenseitigen Positionierung des Abbindemittels;

Figur 7

eine weitere Variante der besagten Führungseinheiten und

Figur 8a und Figur 8b

eine Schnittdarstellung zur Lage des Abbinde-mittels während des Pressens und während des Abbindevorganges.

The invention is explained in more detail below with reference to exemplary embodiments illustrated schematically in the drawings. Showing:

FIG. 1:

the new baler in a side view in partial section;

FIG. 2:

a view from the front in the bay of the baler;

FIG. 3:

a plan view of the press box according to the marked in Figure 2 section line III-III;

Figure 3a and 3b

Views of the detail A of Figure 3;

FIG. 4 and FIG. 5

a view as in Figure 3 with variants of the new bottom guide units;

FIG. 6

the new principle of the bottom-side positioning of the setting agent;

FIG. 7

another variant of said leadership units and

FIG. 8a and FIG. 8b

a sectional view of the position of the setting means during pressing and during Abbindevorganges.

In the figure 1 is schematically shown in side view and partial section - section II - a baler 1, in which the setting means 16 is partially guided outside the shaft 2a. The baler 1 is placed on a footprint 10. As can also be seen from FIGS. 2 and 3, its press box 2 comprises a base 9 and side walls 6 and 7 erected thereon and upstanding and a rear wall 5, wherein the side walls and the rear wall are preferably made of profiled material.
On the front side, see Figure 1, on the side wall 7, the front door 8 is pivotally supported; For reasons of clarity, the same is not shown in the other figures.
The inner sides 6a, 5a, 7a and 8a, the door 8 is opened here, rewrite the shaft 2a, in which the waste material is filled and compressed. The shaft 2a has a lower pressing region 4 and an upper filling region 3. In the shaft 2a, a pressure plate 36 is shown, here in an upper position, position 'filling', before the beginning of a Presszyklusses, is shown. The pressing plate 36 is driven by a drive unit 31; the control signals come from a control unit 30; this unit 30 may also comprise a hydraulic part, see Figure 2.

In the preferred embodiment of Figure 1 is preferably a cut-off setting agent 16 is used.

On the inside 9a of the bottom 9 of the shaft 2a, see Figures 1 and 3 are guide units 26, here the special Versions 26.1 to 26.4, for the protected admission of Provided sections of Abbindemittel 16. Each one here multi-part guide unit 26.1 to 26.4 is preferred of two next to each other substantially parallel to each other spaced strips 27, 28, between which the Abbindemittel 16 is performed. According to the innovation, the Last 27 and 28 of the guide units 26.1 to 26.4 in sections "A1" to "An" to one through the end points 26a and 26b of the guide units 26 imaginary line "G" laterally offset, preferably alternately arranged, wherein respectively adjacent sections "A1" and "A2" or "A3" and "An" connected to each other and these connection points Anlageund Deflection points "U1" ..., "Un" for the setting agent are. Between the two end points 26a and 26b of each Guide unit 26.1 ..., 26n, which are themselves deflection points, is at least one further deflection point "U1" ..., "Un" provided.

The guide units 26.1 to 26.4 are also arranged on the floor 9 so that they are aligned with provided in the rear wall 5 slots 5c, which are aligned substantially vertically. As can also be seen in FIG. 3, the strips 27, 28 of the guide unit 26 preferably extend into the slots 5c provided in the rear wall 5.
Each of a slot 5c forming, facing portions of the rear wall 5 are directed from the inner side 5a to the outside 5b side legs 5d and 5d ', wherein the slot width is preferably narrower towards the outwardly directed ends of the legs.

The middle areas of the inserted setting agent are in guided behind the rear wall provided compensation chamber 14, which is defined by a panel 15. alternatively you can also individual, arranged laterally from the slots 5c Fenders are provided, the oblique arrangement to the rear wall 5 can also be baffles.

In the guide unit 26.3 is exemplary with the Reference numeral 29 - Verstellrichtungen - still shown that the together with the inside 9a of the bottom 9, the groove-like Groove 26c of the guide unit forming strips 27, 28 at Need also made adjustable in their distance from each other so they can be different on setting means Sizes are adjustable.

For the sake of completeness, it is still shown in FIG. 3 that here at the back of the baler 1 a level of the Bottom 9 arranged quiver 12 and in the middle region attached to the side wall 6 or on the rear wall 5 Brackets 13 are provided, which together a supplier for shortened setting agents 16 form. The storage of Abbindemitteln 16 in such a supplier is still in the Figures 1 and 2 shown. There are examples Abbindemittel 16 shown, which is inserted with one end in the quiver 12 and with their other end with the help of the Brackets 13 held in an approximately vertical position become. The bracket 13 is arranged so that the stocked Abbindemittel 16, seen from the side, not on the Basic dimensions of the baler 1 protrude, see Figure 2.

In the following, the sequence of the insertion of setting agent into the shaft 2a of the baler 1 will be explained in a rough outline of the aforementioned exemplary embodiment shown in FIGS. 1 to 3. By operating the control unit 30 of the baler 1, the press plate 36 moves to a predetermined position. The operator removes the setting agent 16 from a preformer 12, 13 provided in the outer area of the baler, slightly compresses the end areas of the setting means 16, the end area preferably having an eyelet 16c being at the top, and pushes the resulting archwire, the middle area of the setting means a vertical slot 5c in the rear wall 5 - Figure 1 -.
As shown in this figure 1, the eyelet 16 c is completely attached to a arranged on the pressing plate 36 fixing pin.

The portions following the eyelet 16c, the end portion and the near-end portion of the setting means 16 are inserted through a gap provided in the lower side of the pressing plate 36 and inserted in a guide channel extending over the latter and guided to the rear portion of the pressing plate 36 and there in a planned guide member, a preferably downwardly opening spring clip, pressed.
The end portion near the other end of the wire 16d and the end portion of the setting means 16 run along and on the inside 9a of the bottom 9 in the guide unit 26.1. The lower end 16d of the end region is introduced into a labyrinth 21.1 of a wire holder 20.1 arranged on the front side 9c of the bottom 9 to form a laterally guided curve or bend and fixed temporarily, see FIG. 3a. The viewer's gaze here goes from the direction of the left side wall 6 along the front side 9c of the bottom 9 in the direction of the right side wall 7.
This new way of fastening the end of the setting means to the front lower front side 9c of the press box 2 causes no disturbing loops or free ends in the press during which the operator of the baler repeatedly approaches the baler for filling the filling area 3 front foot area of the baler are present, as is often the case with conventional balers.

In the figure 3b is the detail shown in Figure 3a in a Shown top view. On the here shown in detail Floor 9 is on the inside 9a of the guide unit 26.1, consisting of a bar 27 and 28 arranged. Of the Wire holder 20.1 is left side in this embodiment provided by the guide unit 26.1, so that in the Guide unit 26.1 inserted setting means 16 during threading and holding in the wire holder 20.1, guided in the bow, against the front inner edge of the bar 27 is pressed and thus a Bending stress is obtained, leaving a section of the inward, in the press box, along the bottom 9a in the Guide unit 26.1 Guided Abbindemittels 16 to the nearest break point - the turning point "U 3" - also under tension.

The setting agent will, according to the respective Baler type provided number, one or more times, such as described above, inserted.

The process for setting a finish-pressed bale "B" will be briefly described below. After the shaft 2 a of the press box 2 closing front door 8 is brought into an open position, the one, the lower end 16 d of the strapping wire 16 is released from the wire holder 20.1 and pulled forward. The portions of the setting means positioned in a guide unit 26 before and during pressing, shown in FIG. 8a, are pulled out of the latter 26 by the pulling movement, into the grooves produced in the bale "B" during pressing, shown in FIG. 8b. As can be seen from the illustrations in these two figures, the choice of a bi-concave cross section for the groove-like groove 26c is particularly advantageous.
The pulled forward portions of the bonding agent 16 are joined together. The wire end 16d of the strapping wire 16 shown is pushed through the eyelet 16c and pulled until the relevant section of the strapping wire 16 rests on all sides of the finished bale. Subsequently, under bending of the still behind the eyelet still free portion, so the remaining end portion of the strapping wire, to form one or more loops, with the located on the front of the bale portion of the strapping wire 16 is twisted.

FIGS. 4 and 5 show variants of the punctiform or sectionally offset arrangement of the groove-like groove 26c. In FIG. 4, each guide unit 26.5 has two sections and three bearing points, namely the points "Uo", "U1" and "Un". The lateral offset of the middle investment or deflection point "U1" of the line "G" is directed in each case to the side walls.
In the figure 5 are shown by the reference numerals 26.6 and 26.7 possible variants of the sectional side offset of the groove-like groove 26c.

In the figure 6 is the positioning of the in one Guide unit 26.1 inserted Abbindemittels 16 shown with 9a is called the inside of the floor. By the Deflection at the investment or deflection points "Uo" to "Un" is this area of the bonding agent 16 in several Sections "A1" to "An" divided, the investment or Turning points "Uo" to "Un" alternating with the imaginary one Straight lines "G" are arranged. The in this entire area occurring bending stresses hold the setting agent 16 safer than previous solutions in its bottom side Guide unit 26.

In the schematically shown in the figure 7 Embodiment variant is the groove-like groove 26c a Guide unit 26.8 to said straight line "G" only occasionally "P1" ..., "Pn" laterally offset. This solution will preferably in rigid, flexible material, e.g. at Plastic bands, used.

reference numeral

1

baler

2

Press box 2a shaft in Pos.2

3

filling area

4

Press area

5

rear wall

5a

Inside (from pos. 5)

5b

Outside (from pos. 5)

5c

Slots (in pos. 5)

5d, 5d '

leg

6

left side wall

6a

Inside (from pos. 6)

7

right side wall

7a

Inside (from pos. 7)

8th

front door

8a

Inside (from pos. 8)

9

ground

9a

Inside (from pos. 9)

9c

Front side (from pos. 9)

10

footprint

12

Quiver (pre-shredder for item 16)

13

Bracket (pre-holder for item 16)

14

Compensation room (dwell room)

15

paneling

16

setting agent

16c

Wire ends (eyelets, from item 16)

16d

Wire ends (from pos. 16)

20.1

wire holder

21.1

labyrinth

26.1 ..., 26.n

guide units

26a

an end (from pos. 26.1 ..., 26.n)

26b

other end (from pos. 26.1 ..., 26.n)

26c

groove-like groove (from pos. 26.1 ..., 26.n)

27, 28

Strips (from pos. 26.1 ..., 26.n)

29

adjusting directions

30

Control units (control units)

31

drive unit

36

press plate

G

imaginary straight line

A1 ..., An

Sections (from pos. 26.1 ..., 26.n)

P1 ..., Pn

point offset (from pos. 26.1 ..., 26.n)

Uo ..., Un

Investment or deflection points

Claims (13)

1. Bale press, which comprises a press box (2), with a substantially vertical shaft (2a) which has above its base (9) a press region (4) and a filling region (3), which is disposed thereabove and in which regions (4, 3) a press plate (36) is movable, wherein the shaft (2a) is formed by a back wall (5) and two mutually opposite side walls (6, 7) as well as a front door (8) closing at least the press region (4), and in which there is provided at least on or in the base (9) of the shaft (2a) at least one guide unit (26.1 ..., 26.n) for reception/guidance of binding means (16), one end (26a) of the unit (26.1 ..., 26.n) facing towards the rear wall (5) and the other end (26b) of the unit facing towards the front side (9c) of the base (9) and containing a continuous groove-like channel (26c) going through the ends (26a, 26b), characterised in that at least the groove-like channel (26c) of the guide unit (26.1 ..., 26.n) is arranged at points (P1 ..., Pn) and/or in sections (A1 ..., An) to be laterally offset relative to a notional straight line (G), wherein this straight line (G) is predetermined substantially by axis of symmetry points of the respective area of the ends (26a and 26b) of the same unit (26.1 ..., 26.n) or an axis parallel to the said straight line (G).
2. Bale press according to claim 1, characterised in that the guide unit (26.1 ..., 26.n) is itself arranged to be offset at points (P1 ..., Pn) and/or in sections (A1 ..., An) laterally with respect to the said predetermined straight line (G).
3. Claim according to claim 1 or 2, characterised in that the laterally offset points (P1 ..., Pn) or sections (A1 ..., An) of the guide unit (26.1 ..., 26.n) or the groove-like channel (26c) are arranged in alternation with respect to the notional straight line (G).
4. Bale press according to at least one of the preceding claims 1 to 3, characterised in that the guide unit (26.2 ..., 26.n) is of integral construction.
5. Bale press according to at least one of the preceding claims 1 to 3, characterised in that the guide unit (26.1 ..., 26.n) is of multi-part construction, preferably comprises two strips (27, 28), wherein the strips (27, 28) arranged at a spacing from one another each form, with inclusion of the base (9, 9a) disposed therebetween, the groove-like channel (26c).
6. Bale press according to at least one of the preceding claims 1 to 5, characterised in that a wire holder (20.1), which is respectively associated with a guide unit (26.1 ..., 26.n) and arranged laterally thereof and which has a labyrinth (21.1), is provided at the front side (9c) of the base (9) in such a manner that ends (16d) of the binding means (16) which are to be locked do not exceed the elastic limit thereof during the locking process and during the locking thereof.
7. Bale press according to at least one of the preceding claims 1 to 6, characterised in that the groove-like channel (26c) has a U-shaped, dovetail-shaped or bi-concave cross-section.
8. Bale press according to at least one of claims 5 and 7, characterised in that the strips (27 and 28), which are provided on the inner side (9a) of the base (9) of the shaft (2a), of the guide units (26.1 ..., 26.n) are arranged to be displaceable for setting the spacing thereof relative to one another and to be lockable.
9. Bale press according to at least one of the preceding claims 5 to 8, characterised in that the ends of the strips (27, 28), which face the rear wall (5), of the guide units (26) at the base side each reach as far as the slot (5c) of the base wall (5).
10. Bale press according to at least one of the preceding claims 5 to 9, characterised in that the ends (26a), which are at the rear wall side, of the strips (27, 28) are bent upwardly or bent over.
11. Bale press according to at least one of the preceding claims 5 to 10, characterised in that a compensating space (14) for the sections (16e) of the binding means (16) reaching through the rear wall (5) are provided at the outer side (5b) of the rear wall (5).
12. Bale press according to claim 11, characterised in that the compensating space (14) is secured, preferably at all sides, by a covering (15).
13. Bale press according to at least one of the preceding claims 5 to 12, characterised in that a storage means for binding means (16) in the form of a bag (12) is provided preferably in the region of the rear wall (5) to be transversely lying below the cover (15), wherein this storage means is supplemented by a yoke (13) arranged laterally at one of the side walls (6 or 7).

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