EP2978672B1 - Packaging device and packaging method - Google Patents

Description

The invention relates to a packaging device and a packaging method for a baler having the features in the preamble of the method and device main claim.

A packaging device for highly compressed pressed bales on a baler is from the EP 0 294 820 B1 known. The packaging device has a supply device for a film web and a wrapping device for attaching a surrounding film jacket to the press bales held between press dies, which form a spatial and kinematic unit and are arranged together on a transport means. The packaging device tightens a film curtain and places it as a belly band around the press bale.

The EP 0 528 892 B1 shows a variant of such a packaging device with a different structural design of the supply device and the wrapping device.

The EP 0 695 690 A1 discloses another packaging device on a central press. The packaging device has a movable on movable rails wrapping device, which attaches a film coat on the held between press punches pressed bales. The supply device for a film web is arranged on both sides directly next to the wrapping device and leads to the film web of a coil directly and in free clamping.

It is an object of the present invention to show a better packaging technique.

The invention solves this problem with the features in the method and device main claim.
The claimed packaging technology, in particular the packaging device and the packaging method, have the advantage of increased performance and improved safety.

As a result of the spatial separation, the supply device can be arranged at a distance from the pressed bale or to the baler and thus outside a safety area on the baling press. This allows a change or replenishment of packaging material, in particular winding or coils, without disturbing or stopping the baler for safety reasons.

The supply device can be arranged stationary, which facilitates the accessibility, the handling and the change of the packaging material, in particular coils. The stocking capacity can be significantly increased. There is enough space for spare coils. The diameter and weight of the coils and spare coils can be much larger than the prior art. In addition, a connection of the tail of the coil change much easier and faster.

Further advantages are the space and weight savings on the means of transport, which only has to transport the wrapping device. This can also lead to improvements in the acceleration and the driving speed of the means of transport, which also has a performance-enhancing effect. Are cheap In addition, improved accommodation options for one or more auxiliary devices on the means of transport, such as a strapping device.

The claimed packaging technology is particularly suitable for high-performance baling presses. In this case, a baler can also be subdivided into a prepress and main press area. The claimed packaging technique may also be used for attaching additional packaging means, e.g. a Dehnhaube be supplemented. In addition, it is possible to attach to the press bale an upper and / or lower cover sheet, which can be done during the pressing.

In the subclaims further advantageous embodiments of the invention are given.

Figur 1:

eine Seitenansicht einer Ballenpresse mit einer Verpackungseinrichtung mit einer Versorgungseinrichtung und einer Einhüllvorrichtung,

Figur 2:

eine perspektivische Ansicht der Zuführeinrichtung einer Einhüllvorrichtung,

Figur 3:

eine Frontansicht einer Einhüllvorrichtung mit zwei beidseits des Pressballens angeordneten Zuführeinrichtungen gemäß Blickrichtung III von Figur 2,

Figur 4:

eine Seitenansicht einer Zuführvorrichtung gemäß Pfeil IV von Figur 3,

Figur 5:

einen Schnitt durch eine Zuführvorrichtung gemäß Schnittlinie V-V von Figur 4,

Figur 6:

eine perspektivische Ansicht einer Versorgungseinrichtung,

Figur 7:

eine Seitenansicht der Versorgungseinrichtung von Figur 6,

Figur 8:

eine Frontansicht der Versorgungseinrichtung gemäß Pfeil VIII von Figur 7,

Figur 9:

einen Schnitt durch die Versorgungseinrichtung gemäß Schnittlinie IX-IX von Figur 8 und

Figur 10:

eine perspektivische Ansicht der Verpackungseinrichtung von Figur 1 bis 9 und eines Teils der Ballenpresse.

The invention is illustrated by way of example and schematically in the drawings. In detail show:

FIG. 1:

a side view of a baler with a packaging device with a supply device and a wrapping device,

FIG. 2:

a perspective view of the feeder of a wrapping,

FIG. 3:

a front view of a wrapping device with two arranged on both sides of the press bale feeder according to viewing direction III of FIG. 2 .

FIG. 4:

a side view of a feeding device according to arrow IV of FIG. 3 .

FIG. 5:

a section through a feeding device according to section line VV of FIG. 4 .

FIG. 6:

a perspective view of a supply device,

FIG. 7:

a side view of the supply device of FIG. 6 .

FIG. 8:

a front view of the supply device according to arrow VIII of FIG. 7 .

FIG. 9:

a section through the supply device according to section line IX-IX of FIG. 8 and

FIG. 10:

a perspective view of the packaging device of Figure 1 to 9 and part of the baler.

The invention relates to a packaging device (2) and a packaging method for highly compressed pressed bales (3) on a baling press (1). The invention further relates to the baler equipped with a packaging device (2).

The pressed bales (3) are made of textile fibers, in particular natural fibers or synthetic fibers, and then packaged with the packaging device (2).

FIG. 1 shows a side view of a baler (1), which is designed for example as a vertical press and having a filling and possibly pre-pressing and a finished or main pressing area. It can be a in FIG. 1 act shown carousel press, the left has the filling and pre-pressing and right to the finish press area.

FIG. 10 also shows the carousel press (1) in a broken view with the turntable, the lower press dies (31) and a pressed bale (3) in a perspective view with a view from the other side.

The baler (1) has a high press capacity. It can, for example, according to the WO 2012/101250 A1 be formed and two parallel feed chutes for the filling of one or more press boxes (4). In the press box (4), the press bale (3) can be compacted between upper and lower press dies (31) at a high pressure. The baler (1) is associated with a packaging device (2), with which the pressed and between the press dies (31) held pressed bales (3) after removal of the press box (4) is packed.

The pressed bale (3) receives by the packaging means a bale package (5) which covers several or even all sides of the press bale (3) and which consists at least partially of a web-shaped packaging material (8). The bale package (5) is at least formed by a ring-like jacket web (7) made of packaging material (8) which is laid around the lateral ball surfaces (32) and which is also referred to as a belly band. It wraps and covers the lateral ball surfaces (32), which are exposed between the press punches and are accessible. In addition, a cover sheet (6) may be attached to the top and / or bottom of the press bale (3).

The attachment of such cover sheets (6) can, for example, according to the EP 0 528 893 B1 with the introduction of a foil blank on the press ram (31) before the pressing of the bale and subsequent folding and applying the cover foil (6) to the side surfaces of the press bale (3). On one or more cover sheets (6) can be dispensed with alternatively.

The packaging device (2) has a supply device (9) for the web-shaped packaging material (8) and an enveloping device (10) for attaching the annular jacket web (7) to the pressed bale (3) held between the press ram (31). The web-shaped packaging material (8) is preferably a bastastic film web of a plastic material, e.g. made of polyethylene or polypropylene. Alternatively, web-like packaging materials of other materials, e.g. also metallic materials or composites possible.

In the embodiments explained below, film webs and jacket films (7) are present and described. You can also apply to others accordingly web-shaped packaging materials (8), material webs, web curtains and jacket webs (7) are adapted.

The wrapping device (10) is provided with a in FIG. 1 indicated transport (20) relative to the press bale (3) and the stationary baler (1) movably arranged. The supply device (9) is spatially and kinematically separated from the wrapping device (10). Preferably, the supply device (9) is arranged stationary.

The supply device (9) has at least one receptacle (12) for a web supply (11) of packaging material (8). This web supply (11) is formed in the illustrated embodiments as a winding or coil, wherein the receptacle (12) is designed as a rotatable coil receptacle for unwinding the coil. In the exemplary embodiments shown, the supply device (9) has two coil holders (12) for a coil (11) in the operating position and for a spare coil (11) in the ready position. The receptacles (12) are arranged on a frame (14) on which also controllable and driven conveying means (16), e.g. Drum rollers, for the Coilabzug and transport of the packaging material (8) are arranged. In the area of the receptacles (12) can also be arranged a device for connecting the web ends during the coil change.

The receptacle (s) (12) is / are arranged at a spatial distance from the pressed bale (3) and optionally to the baler (1) and preferably in a stationary manner. For the supply of the packaging material (8) from the receptacle (12) to the wrapping device (10), a web guide (13) is provided. This bridges the distance to the held pressed bale (3) and has a raised and above the held press bale (3) and the wrapping device (10) arranged guide arm (15) for the packaging material (8). On the guide arm (15) supporting and guiding means (33), eg freely rotatable rollers, and possibly conveying means (16) may be arranged. The web guide (13), in particular the guide arm (15), on the one hand part of the frame (14) or arranged on this and has on the other hand at the front free end a connection for attachment to a support member of the baler (1), in particular on a press stand (17), on. At the free end also pulleys (33) for the packaging material (8) may be present. From the stationary free end, the film web (8) is fed to an inlet (29) of the movable wrapping device (10).

The coils (11) are lying, in particular horizontal, arranged, wherein the withdrawn packaging material (8) occupies a lying position on the preferably horizontally oriented guide arm (15). In this position, it is fed to the wrapping device (10). The elevated arrangement of the guide arm (15) and the packaging material (8) in this area leaves on the baler (1) a lateral access to the held pressed bale (3) free. This access can be used on the one hand for manual handling or for other manual work on the pressed bale (3). On the other hand, a removal device (not shown) or other automatic equipment for bale handling can also be arranged here. The transport (20) can also be moved from this access area in a rest position and give access free.

The wrapping device (10) has a variable web storage (23) for the supplied packaging material (8). In this way, the travel movement of the transport means (20) and the supply of the packaging material (8) from the supply device (9) can be balanced against each other, so that a low-stress, safe transport of the packaging material (8) is possible. This applies in particular if, as in the embodiment shown by FIG. 1 the direction of travel of the transport means (20) when applying the jacket film (7) and the feed direction of the packaging material (8) are directed opposite.

The web memory (23) takes e.g. the required for the associated jacket film area sheet length and is emptied when creating the jacket film (7). This happens during the forward movement of the wrapping device (10) and its transport means (20). During this movement, packaging material (8) can be fed from the supply device (9), which is refilled during the backward movement into the web storage (23).

The web memory (23) is formed in the preferred embodiment as a controllable dancer (24) with relatively adjustable tension rollers (25,26) for the packaging material (8). FIG. 5 illustrates this arrangement in a section and with a view from above. In the dancer (24) a plurality of tensioning loops of the web-shaped packaging material (8) are formed between the stationary tension rollers (25) and the movable tensioning rollers (26) arranged on a controllable tensioning carriage.

On the input side of the web memory (23), in particular the dancer (24), a web deflection (22) upstream, with which the horizontally supplied film web (8) is rotated by 90 ° in an upright position with which the jacket film (7) to the Pressballen (3) is placed. The tension rollers (25,26) also have an upright position. The web deflection (22) can eg via a in FIG. 3 shown oblique and rounded guardrail done.

Above the web deflection (22), the inlet (29) of the wrapping device (10) is arranged with deflection rollers which take over the web-shaped packaging material (8) from the front end of the guide arm (15). FIG. 1 and 4 show this arrangement.

The wrapping device (10) can also have controllable and driven conveying means (27) for the web-shaped packaging material (8). On the output side of the web memory (23), in particular dancer (24), the packaging material (8) is guided in a loop to pulleys on a rear support arm and from there back to an outlet (30) of the wrapping device (10) on which the packaging material (8) in the direction of the pressed bale (3) according to FIG. 2 and 3 exit. The outlet (10) can according to FIG. 5 be movable transversely to the pressed bale (3) and have a controlled extendable and driven for example by a cylinder carriage with upright guide rollers.

As FIG. 3 illustrates the Einhüllvorrichtung (10) span a film curtain (21) which extends across the held pressed bales (3) and the rear end side and then during a driving movement of the wrapping device (10) U-shaped around the pressed bales held (3) placed and closed at the other front end to a ring. For this purpose, the wrapping device (10) has a separating and welding device (28), which is arranged at the movable outlet (30) or in its vicinity. The separating and welding device (28) can be arranged deliverable to the pressed bale (3), wherein it is located, for example, on the carriage of the outlet (30).

On the one hand, the separating and welding device (28) closes the jacket film (7) formed by means of the film curtain (21) at the front end, thereby separating the jacket film (7) from supplied packaging material (8) from. It connects, in particular welded, while the ends of the jacket film (7) with each other. At the same time the resulting during the separation process free ends of the supplied packaging material (8) are connected to each other, again a closed film curtain (21) is formed. After removal of the jacket (7) provided with the press bale (3) from the baler (1), the wrapping device (10) back into an in FIG. 1 Return home position shown.

The wrapping device (10) can be designed constructively in different ways. In particular, it may be formed in one or more parts.

In the embodiment shown, a multi-part wrapping apparatus (10) has two feed devices (18, 19) which are arranged on both sides of the press bale (3) and the baler (1) and which in each case has its own transport means (20) designed as a trolley. exhibit. The feed devices (18, 19) in each case have the aforementioned design of the wrapping device (10) with the web deflection (22), the web store (23) and the conveying means (27), said film curtain (21) being arranged in mirror image opposite one another and synchronously moved feed devices (18,19) is clamped. FIG. 3 shows this arrangement. The separating and welding device (28) can be assigned in whole or in part to one or both feed devices (18, 19).

The welding device (28) is designed in any suitable manner. It can work with heating bars or heating wires with higher temperature, which are suitable eg for PE films. For temperature-sensitive PP films, in particular so-called ribbon films, the Welding device (28) work with ultrasound. The separating and welding device (28) can in one of EP 0 294 820 B1 and / or the EP 0 528 892 B1 appropriate manner be constructive and work.

The two feed devices (18, 19) are also each connected to their own supply device (9) of the type described above, so that the packaging material (8) is fed to both sides of the press bale (3) or the baler (1).

In another variant of the packaging device (2), not shown, a single and one-sided arrangement of a supply device (9) may be provided in connection with a single wrapping device (10), with only one web (8) of packaging material on a bale side from the stationary one Supply device (9) of the wrapping device (10) is supplied. The latter can be multi-part and eg according to the EP 0 528 892 B1 be formed, wherein on one side of a bale a film feeder and on the other a transversely extendable film arm are arranged and are each on a means of transport (20).

Variations of the embodiments shown and described are possible in various ways. This concerns the structural design and arrangement of the supply device (s) (9) and the wrapping device (10) and the baler (1). In particular, the features of the above-described embodiments and their modifications can be arbitrarily combined with each other and also reversed.

The bale package (5) or the press bale (3) provided with a jacket film (7) can then be supplemented with a stretch hood or another packaging material.

The baler (1) may have a different structural design. It may be formed, for example, as a horizontal press and having vertically aligned press punches. The packaging device (2) is designed and arranged accordingly in adaptation thereto. In this case, the jacket (7) is placed around horizontal and vertical free side surfaces (32) of the press bale (3). Furthermore, the baler (1) may have locally and functionally separate pre-press and finish press areas. It can be designed in particular as a press plant with several pre-presses and a common finish press. The packaging device (2) is arranged on a possibly stand-alone finishing press (1). The sheet-like packaging material (8) can be stored and provided in other forms than in coils or coils, for example folded or laid and packed in cartons or the like.

LIST OF REFERENCE NUMBERS

1

baler

2

packaging device

3

bales

4

Press box

5

ball packaging

6

cover sheet

7

Jacket web, jacket film, jacket

8th

Packaging material, foil web

9

supply

10

wrapping apparatus

11

Railway stock, film supply, coil

12

Recording, coil recording stationary

13

web guide

14

frame

15

guide

16

funding

17

press stand

18

feeding

19

feeding

20

Means of transport, trolley

21

Foil curtain, railway curtain

22

web turning

23

web store

24

dancer

25

Tensioning roller stationary

26

Tension pulley movable

27

funding

28

Separating and welding device

29

inlet

30

outlet

31

press die

32

side surface

33

Guide means, pulley

Claims (15)

1. Packaging device for highly compressed bales (3) on a baling press (1), wherein the packaging device (2) has a supply device (9) for a web-like packaging material (8), in particular a film web, and a wrapping apparatus (10) for applying an annular surrounding sleeve web (7), in particular a film sleeve, to the free lateral faces (32) of the compressed bale (3) held between press rams (31), wherein the wrapping apparatus (10) is arranged so as to be movable by way of a transport means (20) relative to the compressed bale (3) and the supply device (9) is arranged in a manner separated spatially and kinematically from the wrapping apparatus (10), wherein the supply device (9) is arranged in a stationary manner and has a receptacle (12) for a web supply (11), in particular a coil, wherein the receptacle (12) and the web supply (11) are arranged with a gap in relation to the held compressed bale (3), characterized in that the supply device (9) has a web guide (13) for feeding the packaging material (8) to the wrapping apparatus (10), wherein the web guide (13) bridges the gap.
2. Packaging device according to Claim 1, characterized in that the supply device (9) has at least one further receptacle (12) for a replacement coil.
3. Packaging device according to Claim 1 or 2, characterized in that the receptacle (s) (12) and the web guide (13) are arranged in a lying manner.
4. Packaging device according to Claim 1, 2 or 3, characterized in that the web guide (13) has a high guide arm (15) for the packaging material (8), said high guide arm (15) being arranged above the held compressed bale (3).
5. Packaging device according to one of the preceding claims, characterized in that the web guide (13), in particular the guide arm (15), has a connection for fastening to a press column (17).
6. Packaging device according to one of the preceding claims, characterized in that the supply device (9) and/or the wrapping apparatus (10) has controllable conveying means (16) for the packaging material (8).
7. Packaging device according to one of the preceding claims, characterized in that the wrapping apparatus (10) has a variable web store (23) for the packaging material (8).
8. Packaging device according to Claim 7, characterized in that the web store (23) is configured as a controllable dancer (24) having tensioning rollers (25, 26) for the packaging material (8) that are adjustable relative to one another.
9. Packaging device according to one of the preceding claims, characterized in that the wrapping apparatus (10) has a web deflector (22) for the packaging material (8).
10. Packaging device according to one of the preceding claims, characterized in that the wrapping apparatus (10) has a cutting and welding apparatus (28) for the packaging material (8).
11. Packaging device according to one of the preceding claims, characterized in that the packaging device (2) has two supply devices (9) and the wrapping apparatus (10) has two feed devices (18, 19) that are arranged on either side of the compressed bale (3) on in each case one transport means (20) and are each connected to a supply device (9) and that are provided and configured to tauten an upright web curtain (21), in particular a film curtain, between one another and to lay the latter laterally around the compressed bale (3).
12. Packaging device according to one of Claims 1 to 10, characterized in that the packaging device (2) has a single and one-sided arrangement of a supply device (9) in conjunction with a single wrapping apparatus (10), wherein only one web (8) of packaging material (8) is fed on one bale side from the stationary supply device (9) of the wrapping apparatus (10).
13. Packaging device according to Claim 11, characterized in that the feed devices (18, 19) each have a web deflector (22), a web store (23), conveying means (27) and a cutting and welding apparatus (28).
14. Baling press for highly compressed bales (3), having a packaging device (2) which has a supply device (9) for a web-like packaging material (8), in particular a film web, and a wrapping apparatus (10) for applying a surrounding sleeve web (7) to the compressed bale (3) held between press rams (31), characterized in that the packaging device (2) is configured according to at least one of Claims 1 to 13.
15. Method for packaging highly compressed bales (3) on a baling press (1) by means of a packaging device (2), wherein a wrapping apparatus (10) is moved relative to the compressed bale (3) by way of a transport means (20) and applies an annular sleeve (7) made of a web-like packaging material (8), in particular a film web, to the free lateral faces (32) of the compressed bale (3) held between the press rams (31), wherein the web-like packaging material (8) is fed to the wrapping apparatus (10) from a supply device (9) which is arranged in a manner separated spatially and kinematically from the wrapping apparatus (10), wherein the supply device (9) is arranged in a stationary manner and has a receptacle (12) for a web supply (11), in particular a coil, and a web guide (13) for feeding the packaging material (8) to the wrapping apparatus (10), wherein the receptacle (12) and the web supply (11) are arranged with a gap in relation to the held compressed bale (3), wherein the web guide (13) bridges the gap.

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