EP0899088B1 - Waste compactor with a bale ejecting apparatus - Google Patents

Abstract

The offcut press has a turning lifting plate (2) in a shaft. A traction rod (3) moves in the rear wall and is pivoted to it. The traction rod can be connected to and disconnected from the press plate (C) to eject the bale (A) using a coupling part in the form of a connecting unit. It can be forcibly mechanically coupled or released, depending on the position of the front door (F) which closes the shaft.

Description

The invention relates to a waste press with ejection device according to the preamble of claim 1, in the cardboard boxes, foils and similar consumed Packaging materials are pressed into bales.

Waste presses are already known with an ejection device, in the bottom area of the shaft of the press have a pivotable to the door opening lifting plate. The drive device for the lifting movement for pivoting said lifting plate is outside in these waste presses arranged on the rear wall of the press housing. The components for connecting the lifting plate to the drive unit are there by one in the back wall of the press housing provided, down to the pressing area reaching slot or slots through to the outside see US-A-4,311,092. This kind of Ejectors are due to the hydraulic and the additionally to be provided safety circuits in the control program cost and maintenance intensive, besides, can through the reaching down into the pressing area Slot to be pressed materials to the outside or Clogging cases often occur through blockages of the slot which reduce the effective utilization of the press.

For other ejectors, such. B. after US-A-4,182,236, are at the front door stop edge in Ground area of the shaft of the press anchored ropes passed through said slots in the rear wall and for rest position on the latter by manual operation individually hung. In preparation for the work step 'Eject Bales' are attached to the rope ends Hook through said slots in the back wall hung in holes of the press plate. When booting the until then acting on the bale press plate are the Ropes stretched towards the door opening and throw the finished bales. This makes it difficult the press plate bottom acting pressed material Insert the hooks of the ropes into the holes of the press plate. In addition, are in the preparations for the next Pressing additional handles for laying the ropes necessary in the prescribed position. Furthermore are also with this solution safety postures in the control program necessary, so that the ejector is not included closed front door is operable to considerable To avoid damage to the press.

US-A-3,916,781 and DE-A-2 630 906 also show ejectors similar construction.

Therefore, the Applicant has in the past, among others Ejection devices provided on balers, the one bottom-side lifting plate, one in the shaft of the press in or on the rear wall substantially vertically movable, with the lifting plate articulated connected traction means, preferably a pull rod, having, after open Front door in the area of the rear wall on the top of the Preßplatte arranged, pivotable or movable Driving part at the upper end of said traction means can be manually hooked into an eye. Between Press plate and rear wall located, compressed packaging material there makes it difficult to hook the entrainment part. In addition, the operator must press the press to operate the said entrainment part attached to the bale Position of the press plate over selbige over and to the with the press plate connected punch laterally over grab, with the operator usually with his upper body gets into the shaft of the press; while of the work step must safety circuits in the Control program unintentional operation of the Absolutely prevent pressure plate. After that takes the driving part during the subsequent upward movement of the Press plate the traction means, preferably the Zustange, with and the bottom-side lifting plate is for ejecting the finished, tied bales in the direction of the released Door opening tilted; in preparation for the next Pressing must the pressing plate to turn off the Ejector for the time being again in the lower position and then be driven up again.

The invention therefore has the task of a waste press to provide with ejector for bales, in which the above disadvantages are essentially no longer are present and in their constructive structure robust, prone to interference and inexpensive and more Improvements in the working conditions of the operator guaranteed.

According to the invention this object solves a waste press with ejection device for bales according to claim 1 or according to claim 2;
the subordinate claims 3 to 12 disclose advantageous developments or variants of these two inventive basic solutions.

These two basic solutions of a waste press with ejector for bales are characterized by the proposed mechanical forced coupling of the drive elements of the ejector with the position of the shaft of the press closing front door F and by automatically switching on the ejector when starting the press plate after reaching the working position 'bales finished ', wherein also after ejection of the finished bale, the ejector falls back into the starting position.
The basic solution according to claim 2 differs from the basic solution according to claim 1 by the use of other construction elements, especially in that instead of a multi-part rod guide here the mechanically acting guide means of the connection unit is designed as a two-armed pivoting lever.

Further developments of the invention are that with completely closed front door F or already with closing front door F, but at least before each following the step 'bale ejection', downward movement of the pressing plate C the ejector reset to its original position is or will be. This intended positive control prevents that parts of the connection unit, in particular the Mitnahmebolzen 6, the ejector with the at the Press plate C arranged driver M, M 'collide.

Fig. 1

eine Abfallpresse in teilweise geschnittener Seitenansicht von links mit der neu gestalteten Auswurfeinrichtung für Ballen nach der Basislösung gem. Patentanspruch 1, mit geschlossener Fronttür und ausgeschwenkter Verbindungseinheit (Position Ruhe);

Fig. 2

die Abfallpresse nach Fig. 1 mit geöffneter Fronttür und eingeschwenkter Verbindungseinheit, Preßplatte in Position 'Ballen fertig';

Fig. 3

die Abfallpresse nach Fig. 1 mit geöffneter Fronttür, eingeschwenkter Verbindungseinheit und Position 'Ballen-Auswurf';

Fig. 4

eine Ansicht auf die Rückwand des Pressengehäuses nach Fig. 1 mit Anordnung einer weiteren Ausführungsvariante, einer mehrteiligen Auswurfeinrichtung;

Fig. 5

die Anordnung eines Sicherheitsschalters im Bewegungsbereich der Fronttür und

Fig. 6

eine Sicht in den Schacht der Presse bei einer Ausführung nach der Fig. 4.

Fig. 1'

eine Abfallpresse in teilweise geschnittener Seitenansicht mit der neu gestalteten Auswurfeinrichtung für Ballen nach der Basislösung gem. Patentanspruch 2, mit geschlossener Fronttür sowie in Ruheposition;

Fig. 2'

die Abfallpresse nach Fig. 1' mit geöffneter Fronttür und eingeschwenkter Verbindungseinheit, mit einer Preßplatte in Position "Ballen fertig";

Fig. 3'

die Ahfallpresse nach Fig. 1' mit geöffneter Fronttür, eingeschwenkter Verbindungseinheit und Position "Ballen-Auswurf",

Fig. 4'

eine Ansicht auf die Rückwand des Pressengehäuses einer Abfallpresse gem. Fig. 1' und

Fig. 5'

eine Ansicht von oben in den Schacht einer Abfallpresse nach der vorliegenden Erfindung gem. der Fig. 1'.

The invention will be explained in more detail below with reference to exemplary embodiments illustrated schematically in the drawings.
In detail show:

Fig. 1

a waste press in a partially sectioned side view from the left with the newly designed ejection device for bales after the base solution acc. Claim 1, with the front door closed and pivoted connection unit (position rest);

Fig. 2

the waste press of Figure 1 with open front door and swiveled connection unit, press plate in position 'bale ready'.

Fig. 3

the waste press of Figure 1 with open front door, pivoted connection unit and position 'bale ejection'.

Fig. 4

a view of the rear wall of the press housing of Figure 1 with arrangement of another embodiment, a multi-part ejector.

Fig. 5

the arrangement of a safety switch in the range of movement of the front door and

Fig. 6

a view into the shaft of the press in an embodiment of FIG. 4th

Fig. 1 '

a waste press in a partially sectioned side view with the newly designed ejection device for bales after the base solution acc. Claim 2, with the front door closed and in rest position;

Fig. 2 '

the waste press of Figure 1 'with the front door open and swiveled connection unit, with a press plate in position "bale finished".

Fig. 3 '

the delivery press according to FIG. 1 'with the front door open, the connection unit pivoted in and the position "bale ejection",

4 '

a view of the rear wall of the press housing of a waste press acc. Fig. 1 'and

Fig. 5 '

a view from above into the shaft of a waste press according to the present invention acc. of Fig. 1 '.

In the embodiment shown in Figures 1 to 3 a waste press after the first basic solution, a press housing G, with a left side wall S1, a right side wall S2, a rear wall R, a Front door F, with integrated filler flap, and one Bottom surface B, and one surrounded by the press housing Shaft S, with at least one pressing area P and a above filling area E, is on the bottom surface B a tiltable lifting plate 2 and in the pressing area P of the shaft S, in the up to the bottom surface B reaching vertical groove N of the rear wall R, one with the Lifting plate 2 articulated by a hinge 3b Pull rod 3 arranged according to the present new Type with its upper end into the filling area E ranges and there with an outwardly projecting leg 3d equipped and fortified by a 3d in the latter Bar 16 is secured against falling into the shaft.

The pull rod 3 of the ejector 1 temporarily with the pressing plate C connecting, otherwise tilted in a known manner on the top of the press plate C arranged so-called Coupling, is in the present embodiment by the novel connection unit of the ejection device 1 replaced. This new connection unit exists from a pivoting piece 4, that with a shaft 5 at the top End of the drawbar 3 hinged and with a Mitnahmebolzen 6 and a pressure pin 7 is provided from an upper U-shaped guide member 8 with preferably long thighs 8a and 8b, the one upper Section 10a form, and a lower also U-shaped Guide member 9 with preferably short legs 9a and 9b forming a lower portion 10b, wherein the Ends of the legs 8a, 8b and 9a, 9b of the two guide parts 8 and 9 facing each other and slightly overlapping one jointly closed, mobile guide 10 for form the pressure pin 7 secured in the swivel piece 4. The guide members 8 and 9 are each provided with a shaft 8c or 9c on the outside of the rear wall R hinged. In addition, to increase the stability of the outer Legs 8a and 9a in the overlapping end portions with interlocking pin 9e or slot 8d equipped become.

Novel and still essential in the present application, moreover, that an operable by the front door F actuating means acting on the guide means 8 and 9 of the new connection unit 4 to 10b. Specifically, here a push rod 12 is guided with compression spring 13 on the left side wall S1 under spring pressure and connected by a strut 14 with the outer leg 9a of the lower guide member 9; a forcefully designed pin 9d holds the outer leg 9a to the strut 14 firmly.
Fig. 1 shows that with the front door F closed, the push rod 12 is engaged in the direction of arrow Z and the guide means 8 and 9 of the new connection unit of the ejector 1 in the direction of arrow Z1 position 'rest' held. In this case, the pivoting piece 4 is pulled by the guided pressure pin 7 to the rear; which is also provided on the pivot piece 4 driving pin 6 is swung out of the in the rear wall R vertically extending groove N. The pressing plate C is freely movable in the direction of arrows U and V in the shaft S. The arranged on the top of the press plate C driver M, the end portion M 'is moved within the groove N, runs on the driving pin 6 over.
2, the pressing plate C is in the position 'bale ready' in the pressing area P. The front door F is open, the push rod 12 moves in the direction of arrow O and pushes the guide members 8 and 9 in the direction of the rear wall R, the guided Pressure pin 7 pivots simultaneously the pivoting piece 4 together with the driving pin 6 in the direction of arrow Y through the opening D in the rear wall R, in the position -Auswerfen-, a. The laterally from the opening D on the outside of the rear wall R provided track 15 limits the pivotal movement of the pivoting piece 4 so that the driving pin 6 in the groove N along the line of movement MB of the end portion M 'of the driver M is located.
In Fig. 3, the step 'ejection' is shown. The press plate C together with the driver M moves in the direction of arrow U upwards. The end portion M 'of the driver M engages under the driving pin 6, whereby the pull rod 3 are raised including the lifting plate 2. The lifting plate 2 pivots in the direction of door opening and the bale A is ejected in the direction of arrow W from the pressing region P of the shaft S and tilts to a previously positioned, not shown here transport pallet. In a special embodiment, here the lower end of the drawbar 3 is equipped with a nose 3c pointing horizontally and in the direction of the lifting plate 2, which substantially accelerates the ejection of the bale A.
The during the upward movement of the press plate C on the guide track 15 along sliding pressure pin 7 is pressed by the obliquely outwardly extending upper portion of the guideway 15 in the direction of arrow Z2 and simultaneously pulls the driving pin 6 of the end portion M 'of the driver M and also presses the upper guide member 8 together with the lower guide member 9 to the rear in its initial position Z1. The lifting plate 2 with drawbar 3 and attached to the latter 3 pivoting part 4 fall down in their initial position shown in FIG. 1 back, while it can act on one of the parts of said connection unit damping element, preferably a connected to the Druckbolzen7 gas spring 18, the Fall speed and impact slow down or dampen.

Figs. 4 and 6 show a modified embodiment of the subject of the application. The ejection device 1 is with several, smaller lifting plates 2, each with one said drawbar 3 and each having a range of each a breakthrough D to D 'arranged connection unit 4 to 10b, equipped by the front door F operated adjusting means 12 and 14 by means of a Lever 19 on a common shaft 9c rotate, on 9c, the respective lower guide parts 9 fixedly arranged are.

A development of the invention still consists in that the front door F of the press housing G in fully open Position is applied to a safety switch 20, this safety switch 20 is the switch for the Press plate stroke releases, in the way, that only when fully open front door F a Release for the activation of the work step 'Bale ejection' can take place.

Hereinafter, with reference to the figures 1 'to 5', the second Basic solution of the invention together with further developments described.

In the one shown in Figs. 1 'to 4', the first Basic solution analogue execution form of a waste press, a press housing G, with a left side wall S1, a right side wall S2, a rear wall R, a front door F, with integrated filler flap and a Bottom surface B, and one of the press housing G surrounded Shaft S, with at least one pressing area P and a overlying filling area E, has also on the bottom surface B a tiltable lifting plate. 2 and in the pressing region P of the shaft S, in the up to the Bottom surface B reaching vertical groove N of the rear wall R, one hinged to the lifting plate 2 by a hinge 3b connected drawbar 3 arranged according to the present another new design with its upper end reaches into the filling area E and there with one after externally projecting mechanical guide means is connected. The essence of this second new design variant, the second basic solution according to claim 2, lies mainly in the fact that instead of a rod guide now only the mechanically acting guide designed as two-armed pivot lever 21 and via the coupling rod 23 of the push rod 12 in conjunction with a cross bar (connecting rod 25), the rear wall stop 22 and the guideways 15 on the press rear wall R controllable in its entry and exit movement is. The bale ejection process also works in principle in the second new solution alike, as in the first new basic solution and also results from the associated figures 1 to 5 in conjunction with the preceding, associated description parts and the relevant items from the list of reference numerals.

Another very important feature is the second basic solution of the invention is that the unwanted Vorkippen the plunger plate with open Front door under the train of the ball ejection, now is first prevented by that accordingly Fig. 4 'and 5' on both sides of the inner walls S1 and S2 of the press shaft S guide rails 26 and corresponding thereto Gleitklötze 27 arranged on the pressing plate C. are. As a result, receives the closed front door F on whose lateral frame parts F1 supported press plate C now also a safe guide towards the open Front door F out when the latter to eject the finished Bale is swung open.

This development is also in a waste press after the first basic solution described earlier applicable. Likewise, with the first mentioned Embodiment described safety switch 20 also on after the second base solution constructed waste presses be used.

In the above description part no further described position information from the drawings or the List of reference numerals are to be identical to the information on to look at the first basic solution described above.

All mentioned in the above description as well as the features that can only be seen from the drawings are further components of the invention, even if they not particularly highlighted and especially not in the claims are mentioned.

LIST OF REFERENCE NUMBERS

1

ejection means

2

Lifting plate (lifting plates)

3

pull bar

3a

lower end (hinged to Pos. 2)

3b

hinge

3c

nose

3d

leg

4

swivel mount

5

wave

5a

Linkage point (from Pos. 3 to Pos. 21)

6

driving pins

7

pushpin

8th

Upper management part

8a, 8b

leg

8c

wave

8d

Long hole

9

lower part of the management

9a, 9b

leg

9c

wave

9d

pen

9e

spigot

10

guide

10a

upper section

10b

lower section

12

pushrod

13

compression spring

14

strut

15

guideway

16

Rod

17

Mechanical locking unit

17a

Front door closure

18

Damping element (preferably gas spring)

18a

housing-side linkage

19

lever

20

safety switch

21

pivoting lever

21a

Approach (for articulation of item 18)

22

Rear wall stop and driver

23

coupling rod

23a

storage

24

rigid lever arm

25

Connecting rod (from pos. 18 and pos. 21a)

26

guide rails

27

slide block

A

Bales (finished pressed and tied)

B

floor area

C

press plate

D, D '

breakthroughs

e

filling area

F

Front door (with integrated filler flap)

F1

Frame of the door

G

press housing

M

takeaway

M '

end

MB

Line of movement of the end portion M 'of the driver M

N

groove

O

Arrow direction (front door open)

P

press area

S

Shaft of the press

R

rear wall

S1, S2

side walls

AND MANY MORE

arrow directions

Y

Arrow direction (position 'Eject')

Z

Arrow direction (closed)

Z1

Arrow direction (position 'rest')

Z2

arrow

Claims (12)

1. Waste material press with ejector equipment for bales, in which at least one tiltable stroke plate (2) is arranged on or in a base surface (B) of a shaft (S) formed by a press housing (G) and at least one pull rod (3), which is pivotably connected with the stroke plate (2), of the ejector equipment (1) is arranged in the press region (P) of the shaft (S) at or in a rear wall (R), as well as a coupling member at least temporarily connecting the pull rod (3) and the press plate (C) and a setting means actuable by the front door (F) of the press housing (G) and acting indirectly or directly on the coupling member are provided, characterised in that the coupling member temporarily transmitting the movement of the press plate (C, M, M') to the tiltable stroke plate (2) of the ejector equipment (1) is constructed as a constrainedly inwardly and outwardly pivotable connecting unit (4 to 10b) which is disposed externally at the rear wall (R) of the press housing (G) and projects partly through a passage (D) formed in the rear wall (R) and which temporarily engages the press plate (C, M, M') and additionally comprises mechanically acting guide means and pivotably engages at the upper end of the pull rod (3) and that the connecting unit (4 to 10b) inclusive of guide means is formed as a linkage guide, wherein the connecting unit (4 to 10b) consists of at least one pivot member (4), which is pivotably connected by means of a shaft (5) with the pull rod (3) and at which an entrainer pin (6) and a pressure pin (7) are additionally provided, and of a lower U-shaped guide part (9) and an upper U-shaped guide part (8), which in the region of the passage (D) are respectively pivotably mounted at the outer side of the rear wall (R) by way of a shaft (9c or 8c) and which together form a closed, positionally variable guide (10) for the pressure pin (7).
2. Waste material press with ejector equipment for bales, in which at least one tiltable stroke plate (2) is arranged on or in a base surface (B) of a shaft (S) formed by a press housing (G) and at least one pull rod (3), which is pivotably connected with the stroke plate (2), of the ejector equipment (1) is arranged in the press region (P) of the shaft (S) at or in a rear wall (R), as well as a coupling member at least temporarily connecting the pull rod (3) and the press plate (C) and a setting means actuable by the front door (F) of the press housing (G) and acting indirectly or directly on the coupling member are provided, characterised in that the coupling member temporarily transmitting the movement of the press plate (C, M, M') to the tiltable stroke plate (2) of the ejector equipment (1) is constructed as a constrainedly inwardly and outwardly pivotable connecting unit (4 to 10b) which is disposed externally at the rear wall (R) of the press housing (G) and projects partly through a passage (D) formed in the rear wall (R) and which temporarily engages the press plate (C, M, M') and additionally comprises mechanically acting guide means and pivotably engages at the upper end of the pull rod (3) and the coupling member is provided as a pivot lever mechanism, wherein the mechanically acting guide means is constructed as a double-arm pivot lever (21) and is so arranged that the lever (21) is controllable in its inward and outward movement by way of the coupling rod (23) of the push rod (12) in conjunction with a transverse lock (connecting rod 25), the rear wall abutment (22) and the guide tracks (15) at the press rear wall (R).
3. Waste material press with ejector equipment for bales according to claim 1, characterised in that the said connecting unit (4 to 10b) and passage (D) are arranged above the press region (P) in the filling region (E) of the shaft (S) externally at or partly in the rear wall (R) and that at least one guide track (15) acting on parts of the connecting unit (4 to 10b) and extending at an inclination outwardly in its upper part region as seen in upward direction is provided laterally of the passage (D) externally at the rear wall (R).
4. Waste material press with ejector equipment for bales according to at least one of claims 1 to 3, characterised in that the setting means influenced by the movement of the front door (F) are constructed as a push rod (12) guided in or at a side wall (S1 or S2) of the press housing (G) and disposed under spring pressure (13) and a strut (14) or lever arm (24) connecting the push rod (12) with one of the guide means of the connecting unit.
5. Waste material press with ejector equipment for bales; according to at least one of claims 1 to 4, characterised in that the setting means influenced by the movement of the front door (F) are constructed as a push rod (12) guided in or at a side wall (S1 or S2) of the press housing (G) and disposed under spring pressure (13) and a strut (14) or lever arm (24) connecting the push rod (12) with one of the guide means of the connecting unit.
6. Waste material press with ejector equipment for bales according to at least one of claims 1, 3, 4 and 5, characterised in that the ejector equipment (1) comprises several smaller stroke plates (2') each with a respective said pull rod (3) and a respective connecting unit arranged in the region of a respective passage (D, D', ...), wherein the setting means (12 and 14) actuated by the front door (F) rotationally act by means of a lever (19) on a common shaft (9c), on which shaft (9c) the respective lower guide parts (9) are fixedly arranged.
7. Waste material press with ejector equipment for bales according to at least one of claims 1 to 5, characterised in that the lower end of the pull rod (3) is equipped with a horizontal lug (3c) directed towards the stroke plate (2).
8. Waste material press with ejector equipment for bales according to at least one of claims 1 to 7, characterised in that a damping element, preferably a gas pressure spring (18), which is supported relative to the rear wall (R) of the press housing (G), engages at one of the parts of the said connecting unit, particularly at the pressure pin (6) or at the connecting rod (25).
9. Waste material press with ejector equipment for bales according to at least one of claims 1 to 8, characterised in that guide rails (26) and slide blocks (27) corresponding therewith are arranged at the press plate (C) at both sides at the inner walls (S1 and S2) of the press shaft (S).
10. Waste material press according to claim 9, characterised in that the guide rails (26) are constructed as flat bar webs, which extend in press direction and are welded in place, and are seated in the rear shaft third as seen from the front door (F).
11. Waste material press with ejector equipment for bales according to at least one of claims 1 to 10, characterised in that the front door (F) of the press housing (G) bears against a safety switch (20) in the completely open position.
12. Waste material press with ejector equipment for bales according to claim 2, characterised by a constructional design in correspondence with Figs. 1' to 5' in connection with the detail definition data of the reference numeral list.

Images