EP1167005B1 - Baling press - Google Patents

Abstract

The press (1) has a closing mechanism for a front door (6) and designed of a lateral bar and a lateral locking bolts provided at the front door in a region, where the bolts are movable in the elongated hole shaped guide. The lateral bar that exhibits an elongated hole shaped guide and a handle. The lateral bar is arranged at a press housing (3) and swivelable around a bearing. The elongated hole shaped guide has an upward directed recess at its end facing the bearing and a downward directed recess at its end facing the front door.

Description

The invention relates to a baling press according to the preamble of claim 1 for compressing - compressing - in particular spent packaging materials or transport and / or storage containers, such as cardboard, films, PET bottles or the like articles and materials.

The prior art discloses a variety of waste compactors of various designs for compacting spent packaging materials and other objects as well as a variety of methods and apparatus for manually or automatically setting bales of material pressed in these waste compactors.

So is out of the DE 197 38 060 A1 a waste press - a so-called vertical baler - with an ejector for the finished pressed bales known in the bottom of the press shaft of the waste press a pivotable lifting plate and a guided substantially in the rear wall, hinged with the lifting plate connected drawbar are provided. The drawbar is releasably connectable to the ejection of the finished material bale by means of a coupling part with the vertically movable pressure plate of the waste press, wherein the coupling part in depending on the position of the closing the shaft of the press Frönntür, mechanically positively coupled switched on or off.

To close the press shaft, the front door rotatably mounted on a side wall of the shaft of the press is applied to the front edge (surface) of the opposite side wall and locked by a safety lock on the latter. Such safety closures are known in various designs, for example, a "handwheel adjusting spindle" closure of the DE 297 21 834 U1 or from the DE 195 45 766 A1 a swiveling "lever" lock in the lateral direction.

An ejector of the aforementioned type is also still from the US-A-3,916,781 known.

In a pressing device according to the DE-A-2 630 906 The ejection device for the pressed material also comprises a pivotable lifting plate, which is connected to a pull rod, the latter being detachably connectable to the pressing plate. However, this pull rod is located in the press shaft of the press. The actuating element for the application and removing this pull rod from the press plate protrudes through the rear wall of the press shaft to the outside and is to operate only from the back of the press.

From the US-A-4,232,599 a baler is known, the ejector has a pivotally mounted in the bottom area lifting plate. In the corresponding area a pull rod is movably mounted in the rear wall of the press room. One end of this tie rod is connected to the respective edge region of the lifting plate. The other end of this pull rod located at the top is hook-shaped and extends into the movement space of the press plate. So that there is no collision, the press plate is provided on its rear side with a corresponding recess. On the press plate of this press a driver is arranged. It consists of a rod, which is angled in its end areas, so that an actuating arm and a driving arm is formed. For the driver bearing points are provided on the press plate, so that the driving arm can be pivoted from a working position to a rest position and vice versa. In the working position of the driving arm is pivoted to a position so that upon an upward movement of the pressure plate of this driving arm engages under the hook-shaped projection of the pull rod and lift the lifting plate on further upward movement of the pressure plate, so that the bale forward from the open wall of the Press shaft is moved out. A disadvantage of this ejector is that to release the driving arm of the driver front pull rod, the press plate must be moved to a low position. For safety reasons, a downward movement of the pressure plate is only possible with closed press shaft door to swing out the driving arm from the working position to a rest position so the press shaft occlusive door must be opened again. In order to be able to work safely, the door of the press shaft must be opened and closed several times to eject the bale and prepare the press for pressing each further bale; In this design of an ejection device, the relevant portion of a cycle for producing a bale of waste material is very time consuming.

Based on this prior art, the present invention seeks to improve the Gesamtkonstrukion the baler so that on the one hand relief for the operator when opening the front door - baling door - or the press shaft door and / or the setting and ejection of the material bale are created and On the other hand, the security when opening and closing the baler door is increased, also the technical effort for the production of the baler should be kept low. This object is achieved in a baler according to the preamble of claim 1 by the means indicated in the characterizing part of claim 1 and measures. The subordinate dependent claims 2 to 6 include advantageous developments and variants of the subject invention.

The invention is based on a baling press, in particular a vertical baling press, for compacting (compressing) in particular spent packaging materials or transport and / or storage containers, such as cardboard boxes, foils, PET bottles or similar objects and materials the closed front door of the press housing is locked with a "lever" closure and / or which has an ejection device for the bale in the lower region of the shaft of the press, the so-called press shaft and / or at least at and / or into the shaft belonging and / or guided in the shaft parts of the press at least one means for guiding the binding material is provided.

The ejection device usually has an on or in the bottom surface of the shaft formed by a press housing hinged lifting plate, and a guided in a rear wall of the press housing, with the lifting plate also hingedly connected drawbar, wherein the pull rod by means of a Carrier optionally with a movable in said shaft press plate is connectable so that when necessary with open front door, which otherwise closes at least the pressing portion of the shaft, by means of the upward moving pressure plate, the ejection device can be actuated.

On the one hand is provided in a novel design of the baler that said entrainment is designed as a pivotable, temporarily coupled to the drawbar driver, consisting of a bearing blocks in bearing shafts on which a pawl and a driver hooks are arranged such that, in particular when the front door is closed at least the catch hook, preferably also the pawl, one facing away from the rear wall, inwardly directed basic position and occupy the open front door, at least temporarily for the phase of bale ejection, pointing to the rear wall, outwardly directed ejection position.

In this ejection position there is at least temporarily a connection of the driving hook with the pull rod of the ejection device during the upward movement of the pressing plate.

Also advantageous is the positioning of the bearing blocks of the driver together with the shaft, pawl together with driving hooks on the pressing plate and that the driving hook can be actuated by the pawl.

It is preferably provided that the driving hook is provided in particular as an L-shaped hook.

Furthermore, it is advantageous that when the front door is open by means of a guided on the press plate slider which is manually operated by a handle element or automatically, the pawl is movable.

Fig. 1

eine Seitenansicht in den aufgeschnittenen Schacht einer Ballenpresse, der Ballen aus Abfallmaterial ist fertig gepresst - jedoch nicht gezeigt -, die Pressplatte bewegt sich aufwärts;

Fig. 2

eine Seitenansicht nach Fig. 1 , der Ballen wird ausgeworfen;

Fig. 2a

eine Seitenansicht nach Fig. 1, mit abwärts bewegter Pressplatte in zwei Momentpositionen;

Fig. 3

eine Seitenansicht einer Pressplatte mit schwenkbarem Mitnehmer in Grundstellung;

Fig. 4

eine Draufsicht auf Fig. 3;

Fig. 5

eine Seitenansicht einer Pressplatte mit schwenkbarem Mitnehmer in Auswurfstellung;

Fig. 6 bis Fig. 9

eine Verschlusseinrichtung für eine Tür des Schachtes, insbesondere des Pressschachtes, einer Ballenpresse in verschiedenen Arbeitsstellungen und

Fig. 10 und Fig. 11

neue Details einer Führung für die Bindemittel im Pressschacht einer Ballenpresse.

A preferred, advantageous embodiment of a baler designed according to the invention, which has all of the aforementioned three basic concepts of the invention, is shown schematically in simplified form in drawings and will be described in more detail below. Show it:

Fig. 1

a side view in the cut open slot of a baler, the bales of waste material is finished pressed - but not shown -, the pressure plate moves upwards;

Fig. 2

a side view of Figure 1, the bale is ejected.

Fig. 2a

a side view of Figure 1, with downwardly moving press plate in two moment positions.

Fig. 3

a side view of a press plate with a pivotable driver in the basic position;

Fig. 4

a plan view of Fig. 3;

Fig. 5

a side view of a press plate with pivotable carrier in the ejection position;

FIG. 6 to FIG. 9

a closure device for a door of the shaft, in particular of the press shaft, a baler in different working positions and

10 and FIG. 11

new details of a guide for the binders in the press shaft of a baler.

Figures 1 to 5 show a baler 1 with a new ejector 2. The baler 1 consists of a press housing 3, with a bottom surface 7, a rear wall 5, a front door 6-s. 6 to 9 with an integrated filling flap, not shown, and side walls 4, and surrounded by the press housing 3 shaft 34, arranged with at least one pressing region 8 and an overlying filling area 9, and one above the latter 9, here in the figures 1 to 2a, not shown, per se known drive for the baler, which is connected to a movable plate 34 in the press plate 15.

The new ejector 2 consists of a lifting plate 10 which is rotatably mounted on the bottom surface 7 in the pressing region 8 of the shaft 34 by means of a bearing 11, a pull rod 12 with slider 12 a, which is preferably longitudinal - vertically - in the rear wall 5, with the lifting plate 10 is hingedly connected by a hinge 14 and in the upper end region has a specially angled, projecting into the pressing portion 8 end 24, and arranged from a arranged on the pressing plate entrainment of the temporary parts in the effective range of the end 24 of the drawbar 12 einschwenkbar are.

For this purpose, according to Figure 3 on the pressing plate 15, a driver is provided which consists of a pawl 16 and a driving hook 17 and is pivoted to a basic position so that a movement of the pressing plate 15 can take place; the catch hook 17 is formed in particular L-shaped.

The pivoting of the driving hook 17 in the ejection position takes place when the front door 6 is open by the movement of a guided slide 18 via a handle element 19, while the slider 18 actuates the pawl 16.

The pawl 16 and the catch hook 17 are mounted on a shaft 20 which is mounted in bearing blocks 21 and 22 which are mounted on the press plate 15.

When the front door 6 is open, the slider 18 can manually through Operation of the handle member 19 in the direction of the rear wall 5 of the baler 1 are moved. By means of a slider 18 mounted on the switching element 23, the pawl 16 and the driving hook 17 are pivoted into a working position. If the pressure plate 15 now moves upward, the pull rod 12 is moved upwards via the driver hook 17, which engages in an angled end 24 of the pull rod 12, and the lifting plate 10 is pivoted upwards about the bearing 11 via the hinge 14. As a result of the inclined position of the lifting plate 10 according to FIG. 2, the material bale shown in part is ejected out of the pressing area 8 of the shaft 34 outwards in front of the baler by the front door 6, which is opened by approximately 180 degrees.

During the upwardly directed movement of the pull rod 12, its upper region together with the slider 12a slides along the guide 13 arranged essentially in the rear wall 5 and is pulled outwards by this guide 13, so that its end 24 is pulled down by the catch hook 17 is and the pull rod 12 together with the lifting plate 10 fall back into the starting position.

In the next downward movement of the pressure plate 15, usually the next press stroke, the driving hook 17 strikes with its lower edge to the projecting into the pressing portion end 24 of the tie rod 12 and at the same time pivoted together with its pawl 16 in the said starting position automatically back ,

The front door 6 is locked during the pressing operation by a closure device on one of the side walls of the press housing 3 while it is connected via hinges 6 with the other side wall.

FIGS. 6 to 9 show details of the closure device, a latch 25 which is mounted on the press housing 3 and has a recess 26 in which a bolt 27 arranged on the front door 6 engages. By pivoting the bolt 25 upwards to a bearing 28 by means of movement of a handle 30, the bolt 27 snaps out of the recess 26 of the bolt 25 and the front door 6 can open according to Figure 7 by a defined angle range by the bolt 27th along a leading edge 29a of an opening beginning below the slot-like guide 29 moves until it abuts a guide 29 delimiting nose 31 of the bolt 25. Above this end region of the guide 29, the latch 25 has an outer projection 37 which abuts on further lifting of the bolt 25 in this phase of the opening operation to a above the locking pin 27 arranged securing pin 36 and an unintentional, fast opening - popping of the bolt 25 by the still pressurized front door 6 - prevented.

Only by lifting the bolt 25 again after a short dwell time, in which the pressed, still in the press shaft located bale relaxes and the front door 6 is substantially relieved by force, according to Figure 8, the locking pin 27 by the after slide down exit 29b from the guide 29 and the front door 6 are fully opened.

The pressure plate 40 provided there is provided at its rear side, that is to say the rear wall 5 of the press housing 3, with at least one projecting U-shaped web 41. At the end, the two legs of the U-shaped web 41 are closed by a bolt 42, so that an enclosed gap 43 is formed, in which the binder for setting the finished pressed bale, usually band, is performed.

The web 41 moves in a groove 5b provided in or on the rear wall 5, this groove 5b being formed by mutually spaced, angled limbs 5a 'of profile parts 5a of the rear wall 5. The inside width of this groove 5b is carried out as already described above. This provided in the rear wall 5 of the shaft of the press groove 5b, which is for receiving Provided areas of the binding agent, so that the binder is not unnecessarily stressed during the pressing process, is now kept free by protruding into this groove web 41, so that the binder is not unnecessarily affected by in the groove 5b squeezed during the pressing process waste material.

The feeding of the strip takes place in particular via a tube 33, the lower portion 33 a is directed so that the tape when inserted and pushed through the tube 33 is inevitably inserted into the gap 43 of the web 41. The tube 33 can be fastened either to the rear wall 5 of the press housing 3, or to the supporting structure of the drive unit, not shown above the filling area 9, or to the press plate 40 itself.

The supply of the binder, not shown, to the tube 33 is carried out in a known manner, either from arranged on the back of the press housing or arranged in the front, upper region of the press supply rollers.

The equipment of the baler with one or more control units together with safety circuits or devices, binder storage, binder tensioning device and the like units does not relate to the subject invention and were therefore not further described. This equipment of the baler is at the discretion of the operator or manufacturer of the baler.

LIST OF REFERENCE NUMBERS

1

baler

2

ejection means

3

press housing

4

Side wall

5

rear wall

5a

profile part

5a '

leg

5b

groove

6

front door

7

floor area

8th

Press area

9

filling area

10

lifting plate

11

camp

12

Pull rod with .... 12a slider

13

guide

14

hinge

15

press plate

16

ratchet

17

driving hook

18

pusher

19

handle element

20

wave

21

bearing block

22

bearing block

23

switching element

24

Angled end of the drawbar

25

bars

26

recess

27

bolt

28

camp

29

Guide (slot-like)

29a

leading edge

29b

output

30

Handle

31

nose

32

swivel

33

pipe

33a

lower part

34

shaft

35

common line

36

Security bolt

37

humpback

38

stop pin

40

press plate

41

Bridge (U-shaped)

42

bars

43

gap

Claims (6)

1. Bale press for compacting - pressing together - of, in particular, used packaging materials or transport and/or storage containers, such as cardboard boxes, films, PET bottles or the like articles and materials, comprising at least:

   - a press housing (3) with at least one front door (6) as well as at least one closure device for the latter (6),

   - a shaft (34) which is formed by the press housing (3) and in which a movable press plate (15; 40) is provided,

   - an ejection device (2), which is associated with the press housing (3), for the pressed bales, in which are provided a tie rod (12), which is guided substantially in a rear wall (5) of the press housing (3) and pivotably connected with a stroke plate (10) mounted in the shaft (34) at the base side (7), and an entrainer device for temporary connection of the tie rod (12) with the preferably vertically movable press plate (15; 40), as well as a drive unit which is connected at least with the press plate (15; 40) arranged in the shaft (34),

   characterised in that the entraining device is constructed as a pivotably movable entrainer which can be temporarily coupled with the tie rod (12) and which consists of a shaft (20), which is mounted in bearing blocks (21, 22) and at which a pawl (16) as well as an entrainer hook (17) are arranged in such a manner and the bearing blocks (21, 22) of the entrainer together with shaft (20), pawl (16) and entrainer hook (17) are so positioned on the press plate (15; 40) that particularly when the front door (6) is enclosed at least the entrainer hook (17), but preferably also the pawl (16), adopt a basic setting directed inwardly and pointing away from the rear wall (5) and when the front door (6) is open adopt, at least temporarily for the phase of bale ejection, an ejection setting directed outwardly and pointing towards the rear wall (5), wherein in this ejection setting a connection of the entrainer hook (17) with the tie rod (12) exists at least temporarily during the upward movement of the press plate (15; 40).
2. Bale press according to claim 1, characterised in that in the upper region of the tie rod (12) a slide member (12a) disposed outside the rear wall (5) is fixedly arranged at the tie rod (12) and in addition provided in the movement region of the slide block (12a) at or in the rear wall (5) is a guide (13) which extends at least partly outwardly at the rear wall (5) and has a wedge thickness increasing as seen in rising direction, wherein the surface - edge - contacting the slide member (12a) increasingly slopes away with respect to the rear wall (5).
3. Bale press according to claim 1 or 2, characterised in that the entrainer hook (17) is actuable by the pawl (16).
4. Bale press according to one of claims 1 to 3, characterised in that the entrainer hook (17) is provided as, in particular, a hook of L-shaped construction.
5. Bale press according to one of claims 1 to 4, characterised in that a guided, preferably rod-shaped slide (13) with a grip element (19) at one end thereof and a switching element (23) at the other end thereof is arranged on a press plate (15), wherein when actuated the switching element (23) acts on the pawl (16).
6. Bale press according to one of claims 1 to 5, characterised in that the slide (18) is automatically actuable.

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