EP3199331A1 - Baling press - Google Patents

Abstract

In a baler (1) for compacting goods (2), in particular waste material from cardboard, films or PET bottles, to a bale (3) covered with at least one wire loop (7), consisting of: - A baler housing (8), in which an opening (13) for introducing the material to be pressed (2) incorporated and in the interior of a pressing space (9) is provided, - A in the baler housing (8) axially displaceably mounted pressing ram (9) which is adjacent to the opening (13) and through which together with the baler housing (8) and a door (11) of the pressure chamber (10) is closed, - One or more wire rollers (5) on which a wire (6) is rolled up and unwound from this, which is arranged in the interior of the baler housing (8) for forming the wire loop (7), - A packaging means (21) through which the wound of the wire rollers (5) unwound wires (6) in the direction of the press ram (9) and connected by the in the region of the press ram (9) the loose ends of the wires (6) are, on the one hand a mechanically operated packaging of the finished pressed good (2) in the press room (9) should be possible and on the other hand, the finished packaged bale (3) by a pivotally mounted on the baler (1) hinged door (11) or by an ejection piston can be pushed through this. This object is achieved in that the packaging device (21) on the baler housing (8) is slidably mounted and that the position of the press ram (9) and the position of the packaging device (21), while the bale (3) by means of the wire loop ( 7) is enveloped, aligned with each other.

Description

The invention relates to a baler according to the preamble of claim 1.

Such balers are for example from the DE 10 2009 053 134 A1 known. The material to be compacted, in particular cardboard, waste paper, films or PET bottles should be compacted as possible space-saving by such balers in order to transport the thus compressed bales cost and store. It is imperative to encase the pressed material before it is removed from the baler by means of one or more wire loops, so that the compressed material can not fall apart.

Usually, the material to be pressed is filled into the filling opening of the baler until the press ram has reached a predetermined position, that is to say the size of the pressed product substantially corresponds to the subsequent bale. Once the compressed material is held compressed in the baling chamber of the baler by means of the press ram, a flap on the baler is open to manually knot the wire loops at the end of the compressed bale, ie between this and the ram.

On the one hand, such work is extremely time-consuming and, on the other hand, faulty, since these are to be carried out manually by an operator. It is not possible for balers, which have a predetermined baling chamber, the For example, on one side of a door that serves the same limit and thus as a stop for the pressed Good is locked in the press room intervene. By pivotally hinged to the baler housing door can be removed from the baling chamber after pressing the packaged bales.

When pressing the filled material in the baling chamber by the ram, namely, the position of the ram depends essentially on how much was pressed to be pressed Good in the baling chamber. If at the last filling, before the end of the compression cycle, namely filled too much or less good, then the punch is in each case at different positions, which may be in a range of about ± 5 cm apart. Although the required for the wrap of the compressed bale wire is automatically drawn during pressing of the goods of the corresponding unwinding rollers and then runs laterally in the longitudinal direction of the baler, however, an automatic or mechanical connection of the wire ends between the ram and the bale can not be done because the ram terminated at different not exactly defined positions the pressing cycle.

For example, another type of balers can be made from the DE 20 2012 004 270 U1 be removed. This is a baler, which is aligned in the direction of the stroke, has an outlet channel through which the compressed and packaged bale is pushed through the subsequently entered to be pressed Good while serving as a counter-stop for the material to be pressed in the baling chamber. In the outlet channel there are several compressed and packed bales, which exert due to the prevailing friction between them and the inner wall of the outlet channel sufficient on the material to be pressed. Advantageously, in such a pressing system, the position of the press ram can be specified exactly, because the pressed and packed bales arranged in the outlet channel are movable relative to the baling chamber, so that the position of the press ram can be aligned independently of the filled quantity of the product. If in fact the pressing force exerted by the press die on the material to be pressed increases, the bale already located in the outlet channel is more or less displaced by it.

Such balers can then be provided by means of a mechanical or automated connection or packaging device which is fixedly arranged on the baler housing and run in alignment or in the same plane as the pressing ram. Accordingly, the final position of the press ram after the end of the last pressing operation is exactly predetermined and the machine-operated packaging device can connect the wire ends in the region of the press ram, so that on the one hand the pressed product is tightly encased with at least one wire loop and, on the other hand, for the next one Pressing Good already a one-sided closed wire loop in the region of the pressing space is present, which is moved by the subsequently entered Good and the lifting movements of the ram in the direction of the outlet or the outlet, so that the pressing process and the packaging or lashing of the finished compressed Ballens repeated.

Disadvantageously, however, such balers are dimensioned extremely large, since the outlet often has a length of three and more meters. Such a length of the outlet channel is absolutely necessary for the reliable operation or the positioning of the press ram exactly in the plane of the packaging device.

It is therefore an object of the invention to provide a baler of the type mentioned, on the one hand allows a machine-operated packaging of the finished compressed material in the baling chamber and on the other hand has a hinged hinged door on the baler, through the packaged bales removed or pushed out by an ejector piston.

These objects are achieved by the features of the characterizing part of claim 1.

Further advantageous developments of the invention will become apparent from the dependent claims.

Characterized in that the packaging device is slidably mounted on the baler housing and that the position of the press ram and the position of the packaging device, while the bale is sheathed by means of the wire loop, are aligned with each other, it is ensured that regardless of the position of the ram of wire wound on the wire rolls is guided into the interior of the baler housing by means of the packaging device and into the press die to form the wire loop around the bale. Thus, it is achieved that the fastening of the wire loop is carried out automatically by the lifting movement of the packaging device and that regardless of the position of the press ram after completion of the pressing process, the formation of the wire loop by means of the packaging device is possible.

Both the strokes of the ram and the final position of the ram after the end of the pressing process can be detected by means of sensors, so that subsequently the hinged relative to the baler housing packaging device can be moved exactly aligned with the position of the ram and aligned to the respective Insert wire from the wire reel into the inside of the press ram.

In addition, a long-sized export opening in the form of a channel is no longer necessary, so that the size of the baler is considerably reduced. The compressed bale can namely be removed by the pivotally mounted on the baler housing door.

Figur 1

eine Ballenpresse mit einem Ballenpressengehäuse, in dem ein Pressstempel axial verschiebbar bewegt ist und in die eine Öffnung zur Einfüllung von zu verpresstem Gut vorgesehen ist und mit einer Verpackungseinrichtung, durch die gemeinsam mit dem Pressstempel das verpresste Gut mittels einer Drahtschlinge zu einem quaderförmigen Ballen geformt bzw. verbunden ist, im Schnitt,

Figur 2a

die Ballenpresse gemäß Figur 1 um 90 Grad verdreht und in der Ausgangsposition der Verpackungseinrichtung,

Figur 2b

die Ballenpresse gemäß Figur 2a, in der die Verpackungseinrichtung die Endposition zur Bildung der Drahtschlinge erreicht und

Figur 3

den Pressstempels gemäß Figur 1, in perspektivischer Ansicht und den mit der Drahtschlinge umschlossenen Ballen.

In the drawing, a baler is shown, which is explained in more detail below. In detail shows:

FIG. 1

a baler with a baler housing, in which a ram is moved axially displaceable and in which an opening for filling of material to be pressed is provided and with a packaging device, molded together with the press ram the pressed material by means of a wire loop to a cuboid bale or is connected, on average,

FIG. 2a

the baler according to FIG. 1 rotated 90 degrees and in the starting position of the packaging device,

FIG. 2b

the baler according to FIG. 2a in which the packaging device reaches the final position for forming the wire loop and

FIG. 3

according to the press stamp FIG. 1 , in perspective view and the bale enclosed with the wire loop.

An in FIG. 1 illustrated baler 1 is used to produce a compressed bales 3 from individual goods 2, which is strapped by a wire loop 7, so that the generated shape of the bale 3 is not changed during the further transport and storage process. By means of the baling press 1, for example, waste products made of cardboard, films or PET bottles can be formed into the bale 3.

The baler 1 has a longitudinal axis 4, which may be aligned horizontally, vertically or inclined; depending on the application and intended use of the baler 1.

The baler 1 consists of a rectangular baler housing 8, which encases an interior. In the baler housing 8, a ram 9 is provided, which is movable by a lifting device or other pneumatic, electrical, mechanical drive in an axial movement, parallel to the longitudinal axis 4 back and forth. Furthermore, a filling opening 13 is incorporated in the baler housing 8, through which the material to be pressed 2 in the baler housing 8 can be filled. In the initial state or before each pressing operation, the pressing ram 9 is positioned laterally next to the filling opening 13 in the starting position, so that the material to be compacted can be filled into the baling housing 8 without the pressing ram 9 hindering this filling process.

The press die 9 is then actuated while being moved in the direction of a pressure chamber 10. The pressure chamber 10 is on the one hand on four sides by the walls of the baler housing 8 and by the ram 9 and one on the Baler housing 8 closed by means of hinges 12 11 door closed. The door 11 is accordingly arranged opposite the press die 9 and can be opened from the outside in order to remove the pressed bale 3 from the baler housing 8. Consequently, the door 11 serves as a stop or abutment for the ram 9 and on the other hand, this provides access to the interior of the baler housing 8 to remove the bale 3 from this.

On the outside of the baler housing 8 two wire rollers 5 are provided, on each of which a wire 6 is rolled up and, as described below, is unwound from the wire rollers 5, while the ram 9 promotes the filled material 2 in the pressure chamber 10. The separated wires 6 are first led into the interior of the baler housing 8 and are to be connected together to produce the initial state of the wire loop 7. As soon as the product 2 is filled through the filling opening 13 into the interior of the baler housing 8 and the press ram 9 has conveyed this product 2 into the pressure chamber 10, the wire loop 7 and thus the respective wire 6 are unwound from the wire reel 5 and the wire 6 or the still unilaterally open wire loop 7 is located between one of the inner walls of the baler housing 8 and the already compressed portion of the bale 3.

Reference numeral 15 designates the region 15 in which the packaging device 21 can be arranged and in which the pressing die 9 can run as soon as sufficient good 2 has been introduced into the pressure chamber 10. In this case, the stroke of the press ram 9 or the position is measured by means of sensors and other electrical or mechanical aids, so that conclusions can be derived from these measurements, which amount of compressed material 2 is already in the pressure chamber 10 to the size of the finished compressed Ballens 3 as uniform as possible. Accordingly, if the press die 9 is in its end position in the region 15, which can vary in the order of ± 10 cm, a packaging device 21 is delivered to the position of the press die 9.

The packaging device 21 is supported by a rail 22 or linear guide, which is fixedly connected to the baler housing 8, parallel and spaced from the longitudinal axis 4 of the baler 1 slidably mounted. In particular the characters 2a and 2b It can be seen that the packaging device 21 by means of a drive 24 in operative operative connection via a spindle 23. As soon as the drive 24 therefore moves, the spindle 23 rotates about its own axis, so that the packaging device 21 is moved in the manner of a linear drive relative to the baler housing 8 parallel to the longitudinal axis in the direction of the position of the press ram 9. The direction of rotation of the spindle 23 and the drive 24 can be adjusted in or opposite to the clockwise direction.

In order to achieve the production of the wire loop 7 by means of the packaging device 21, it is necessary that on the one hand the position of the press ram 9 is maintained in order to fix the pressed product 2 to the bale 3 and, on the other hand, the respective wire 6 from the wire roll 5 into the interior of the press ram 9 with the help of the packaging device 21 immerse. Namely, a loop of the wire 6 is formed by the packaging device 21, which in the interior of the press ram 9 according to FIG. 2a runs.

Consequently, it is imperative that the press ram 9 is aligned with the packaging device 21. For this purpose, a sensor 26 is provided both on the press ram 9 and on the packaging device 21, which detect the position of the ram 9 and the packaging device 21, for example by means of light beams, magnetic fields, electrically or in another physical way, and communicate with each other. Accordingly, the packaging device 21 can be moved along the longitudinal axis 4 in the direction of the ram 9 until it is moved in alignment with the ram 9. The packaging device 21 has a piston 29 which is aligned perpendicular to the longitudinal axis 4 and which can dip into the press ram 9. For this purpose, the ram 9 has a gap 16 which is introduced perpendicular to the longitudinal axis 4 in this and extending groove-like along an axis over the entire ram.

The piston 29 of the packaging device 21 can be introduced by way of stroke into the interior of the press ram 9 through the intermediate space 16. The piston 29 takes in the one wire 6 and unwinds it from the corresponding wire reel 5, so that the wire 6 forms a strapping, which in the intermediate space 16 of the ram 9 runs. The piston 29 of the packaging device 21 can be moved hydraulically or pneumatically by means of an electric or mechanical drive. The drive 24 can also be used to generate the lifting movement of the piston 29 of the packaging device 21.

Once the piston 29 of the packaging device 21 has arrived on the opposite side of the baler housing 8, the strapping of the bale 3 is formed by the loop of the wire 6 is separated and the opposite wire 6 is pulled into the space 16 of the ram 9 and severed. The loose end of the wire 6 wound around the bale 3 is connected to the one end of the loop of the upper wire 6 by the packaging means 21, so that the wire loop 7 strapping the bale 3 is formed, and the others both loose ends of the opposite wires 6 are connected together by the packaging device 21 to again produce a part of a new wire loop 7.

As soon as this connection process between the loose ends of the wires 6 is completed, the piston 29 of the packaging device 21 is pulled out of the press ram 9 and the ram 9 is moved back in the direction of the starting position. In order to release the movement of the ram 9, since in this the loose ends of the new wire loop 7 are present, in this a Ausführschlitz 30 is incorporated, through which the new wire loop 7 passes when the ram 9 is retracted. The Ausführschlitz 30 is connected to the intermediate space 16 and together form a kind of T-groove. Advantageously, the Ausführschlitz should be configured V-shaped to promote a passage of the new wire loop.

Accordingly, for the further filling operation, the pressing punch 9 is located to the left of the filling opening 13 and the new wire loop 7 to the right of the opening 13 according to FIGS Figures 1 to 2b , The pressing process and the packaging of the compressed bale 3 are therefore repeated without manual generation of the wire loop 7.

Regardless of the position of the press ram 9, the wire loop 7 can be placed around the bale 3 in an automated manner. In addition, the press ram 9 can be located in an arbitrary position in the region 15, which substantially corresponds to the adjustment path of the packaging device 21, so that the filled into the baler housing 8 amount of goods 2 is designed variable. This is particularly advantageous during the last pressing process, because the user of the baler 1 can fill 2 good without causing the pressing process of the press ram 9 is disturbed.

The in the FIGS. 2a and 2 B illustrated embodiment of the spindle 23 can be readily replaced by a chain or V-belt drive or by an electrically, hydraulically or pneumatically actuated pressure piston.

The bale 3 can be strapped by a plurality of wire loops 7. For this purpose, a plurality of wires 6 can be placed around the bale by one or more pistons 29. The piston 29 may also be formed as a telescopic arm or rod to achieve the smallest possible design.

Claims (7)

Baling press (1) for compacting goods (2), in particular waste material from cardboard, films or PET bottles, to form a bale (3) surrounded by at least one wire loop (7),
consisting of: - A baler housing (8), in which an opening (13) for introducing the material to be pressed (2) incorporated and in the interior of a pressing space (9) is provided, - A in the baler housing (8) axially displaceably mounted pressing ram (9) which is adjacent to the opening (13) and through which together with the baler housing (8) and a door (11) of the pressure chamber (10) is closed, - One or more wire rollers (5) on which a wire (6) is rolled up and unwound from this, which is arranged in the interior of the baler housing (8) for forming the wire loop (7), - A packaging means (21) through which the wound of the wire rollers (5) unwound wires (6) in the direction of the press ram (9) and by the in the region of the Preissstempels (9) the loose ends of the wires (6) connected to each other are, characterized,
in that the packaging device (21) is displaceably mounted on the baler housing (8) and that the position of the press ram (9) and the position of the packaging device (21) while the bale (3) is sheathed by means of the wire loop (7) are in alignment aligned with each other. Baler (1) according to claim 1,
characterized,
in that at least one insertion opening (28) aligned perpendicular to the direction of displacement of the press ram (9) is provided in the press ram (9), which runs in alignment with the position of the packaging device (21), while the wire loop (7) passes through the bale (7). 3) is placed and that in the press ram (9) an outlet slot (30) is provided, through which the respective wire loop (7) is pulled through upon retraction of the press ram (9). Baler (1) according to claim 1 or 2,
characterized,
in that a respective sensor (26 or 27), by means of which the positions of the press ram (9) and the packaging device (21) are controllable, is arranged on the press ram (9) and on the packaging device (21). Baler (1) according to one of the preceding claims,
characterized,
that the stroke paths of the press ram (9) are measured and that by the measured movements of the press ram (9) the completion of the respective pressing process can be determined. Baler (1) according to one of the preceding claims,
characterized,
in that the packaging device (21) is supported on a rail (22) and in that the packaging device (21) is relatively movable by means of a drive (24) to the baler housing (8). Baler according to claim 5,
characterized,
in that a spindle (23), a revolving chain or a revolving V-belt or a pneumatically or hydraulically actuable pressure piston is provided between the packaging device (21) and the drive (24), by which the respective drive torque of the drive (24) for relative movement the packaging device (21) is transferable to this. Baler (1) according to one of the preceding claims,
characterized,
in that the movement device of the packaging device (21) is aligned perpendicular to the longitudinal axis of the baler (1).

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