EP4034466A1

EP4034466A1 - Compressed bale, packaging device and production device for compressed bales

Info

Publication number: EP4034466A1
Application number: EP20785921.6A
Authority: EP
Inventors: Norbert Sauerwein; Dirk Falise
Original assignee: Autefa Solutions Germany GmbH
Current assignee: Autefa Solutions Germany GmbH
Priority date: 2019-09-25
Filing date: 2020-09-23
Publication date: 2022-08-03
Also published as: WO2021058559A1; US20220371759A1; DE202019105299U1; US11945613B2; KR20220065772A; CN114466803A

Abstract

The invention relates to the packaging of compressed bales (1) with packaging (11) surrounding the compressed bale (1), wherein the compressed bale (1) is formed from highly compressed, preferably short-cut, textile fibres and has mutually opposite pressing sides (5, 6), which are acted upon by a pressing means (32) in a pressing direction (10), and circumferential sides (7, 8), which are arranged between the pressing sides (5, 6). The packaging (11) has multipart film packaging (12) resting on the bale body (4) and first strapping (22) with a plurality of parallel endless bands (23) that are laid over the pressing sides (5, 6) of the compressed bale (1). Further strapping (25) having a plurality of, in particular two, endless strapping bands (26, 27) are applied to the compressed bale (1), said strapping bands (26, 27) being laid peripherally only over the circumferential sides (7, 8) and being arranged externally on the film packaging (12) and on the bands (23), wherein the strapping bands (26, 27) cross the bands (23), forming cross strapping (21).

Description

DESCRIPTION

Pressed bales, packaging equipment and production equipment for pressed bales

The invention relates to a pressed bale, a packaging device together with a packaging method and a production device for pressed bales with the features in the preamble of the independent claims.

It is known from practice to provide a pressed bale made of highly compressed and preferably short-cut textile fibers with a multi-part film packaging and a strapping of several parallel endless bands. The straps of the strapping are placed over the pressed sides of the pressed bale or its bale body. The pressing sides lie opposite one another on different body sides, with several circumferential sides being arranged between the pressing sides in the usual cuboidal pressed bale shape. The pressing sides are acted upon by a pressing means in one pressing direction during the production of pressed bales. The strapping is attached to the compressed bale, which is then relieved and expands primarily in the pressing direction against the retaining force of the strapping and its straps. On the pressing sides, the straps can dig deep into the expanded bale body and form constrictions.

It is the object of the invention to provide a better pressed bale and better packaging technology.

The invention solves this problem with the features in the independent claims. The packed pressed bale and the packaging technique, that is, the packaging device, the packaging method and a production device for pressed bales, have various advantages.

The compressed bale is provided with cross strapping using the packaging technology claimed.

This consists of a first strapping with the several parallel endless straps and of a further strapping which has several, in particular two, endless and preferably tensioned strapping. The straps cross the straps of the first strapping. The straps are arranged on the outside of the straps and can touch them if necessary.

The straps of the first strapping are guided over the said pressing sides of the pressed bale or its bale body. They also extend over two of the circumferential sides. These are preferably the broad sides of an essentially cuboid body of the bale. The straps of the further strapping are only laid circumferentially over the several, in particular four, circumferential sides of the pressed bale or its bale body.

You are not listed on the press pages.

The pressed bale can usually have a rectangular parallelepiped shape. It can also have a cuboid-like shape with several peripheral sides in a trapezoidal shape. The parallel sides of the trapezoidal shape can be formed by the pressing sides, with the inclined sides of the trapezoidal shape being arranged on the circumferential sides. The trapezoidal shape widens against the pressing direction, the circumference being greatest on the pressing side acted upon by a driven pressing means. The trapezoidal shape can be caused by frictional resistance on a box wall when filling and pressing the Fiber material is created in a press box.

The said pressing sides of the pressed bale are aligned transversely to the pressing direction. As a rule, they are also arranged parallel to one another. The several circumferential sides are aligned longitudinally or, in the case of a trapezoidal shape, obliquely to the said pressing direction. In the case of a cuboid shape or a cuboid-like shape with corners and edges, there are four circumferential sides.

The straps of the further strapping are arranged parallel to one another and parallel to the pressing sides. The further strapping preferably has two strapping bands which are arranged off-center and close to the said pressing sides. The number of straps can also be larger.

One strapping and the other strapping can be attached to the pressed bale with a time offset and at different process locations. It is advantageous to first apply the preferably multi-part film packaging at least partially to the pressed bale and to apply the one strapping to it. The latter can take place on the still pressed and compressed pressed bale, which then expands after the press is released, in particular in the pressing direction, and is clamped into the relatively loosely laid first strapping. The further strapping is then applied over the first strapping, preferably on the already expanded pressed bale.

The multi-part film packaging can lie directly on the bale body of the pressed bale. It can completely envelop the bale body on all sides. This is advantageous for protecting the pressed bale against external environmental influences. The first strapping can rest on the outside of the film packaging. she can fix the foil packaging to the pressed bale.

The claimed pressed bale and the claimed packaging technology have the advantage that the shape of the pressed bale is stabilized by the cross strapping. As a result, it can be stacked better and higher for storage purposes, which reduces storage and costs.

Furthermore, the multi-part film packaging can be fixed better to the pressed bale or to its bale body by means of the cross strapping. The better fixation can lead to a better tightness of the film packaging. This is advantageous for sensitive fiber material that is used in the hygiene sector, e.g. in diapers or the like.

The film packaging can be formed from several flexible packaging films, which are preferably made of plastic, e.g. PE, PP, or the like. One or more packaging films can be stretchable. One or more packaging films can be designed to be tensile and stretchable, e.g. as a ribbon or fabric film.

The flexible film packaging is sufficient for the secure and tight wrapping of the pressed bale. It is economical and also has advantages for the later unpacking of the pressed bale and for the disposal of the packaging material. Further and possibly stiffening packaging means, such as cardboard lids, cover plates or the like, are not required and can be omitted.

The film packaging can, for example, be designed in two parts with base and cover film or in three parts with base and cover film and an endless jacket film. A three-part film packaging has advantages for the all-round tight wrapping of the bale body and for the film consumption as well as for the unpacking effort. The bottom foil and / or the cover foil can be formed from flat foil blanks. They can be placed on the press side of the bale body and folded over if necessary. The folded bottom sheet and / or

Cover film can cover a press side and, with an edge fold, the edge areas of the adjoining peripheral sides. When folding over, a corner fold can be formed and folded over on a peripheral side, e.g. on a broad side.

Alternatively, a bottom film and / or construction is possible

Cover film possible as a hood open on one side or as a sack. The hood or sack rests with the circumferential side wall on the circumferential sides of the ball body and covers these at least over part of the body height.

The jacket film encloses all circumferential sides of the bale body in a closed ring shape. The cladding film can be endless or finite with an overlap of its

Be formed film ends. The width of the jacket film is preferably smaller than the height of the bale body.

The longitudinal edges of the jacket film, which is preferably attached symmetrically to the center of the bale body, are then at a distance from the pressing sides of the bale body. The

Longitudinal edges of the jacket film can overlap with an edge fold of the base film and / or cover film or with a circumferential side wall of a hood or a sack.

The further strapping is particularly advantageous for the fixation of folded edge folds and possibly folded corner folds of base and cover foils, which are each applied to a circumferential side of the bale body and are fixed here. Furthermore, an overlap can be fixed and sealed by the additional strapping, which is attached between a cladding film the or the peripheral sides and other parts of the film packaging is formed.

Said other parts of the film packaging can be the mentioned bottom and top films and their edge folds and, if necessary, corner folds. On the other hand, other parts of the film packaging can be used, which e.g. have a spatial and already predetermined shape, e.g. a hood shape or a bag shape.

An endless jacket film can be formed from a finite piece of film, the ends of which are connected to one another with a connecting means, in particular a weld seam. If the jacket film consists of a material that is not or only slightly elastic, the jacket film can have a larger circumference and a protrusion over the pressed bale or its bale body. At least one strapping band of the further strapping can be arranged on the protrusion and fix and seal it.

The multi-part film packaging can be fully or partially applied to the bale body before the strapping is attached. In a first variant, all parts of the film packaging, e.g. a base and cover film in folded form or in the form of a hood and a jacket film, can be applied together before strapping and then strapped together with the first strapping.

In another second variant, individual parts of the film packaging, for example the said bottom and top film, can be applied first, for example in a baling press and on the pressed bale held under compression. These packaging parts can then be strapped with the first strapping, which is also done, for example, in a baling press and on the one below Compression held bale can be done. Another part of the film packaging, in particular a jacket film, can be applied subsequently. It can be placed on the outside over the said parts of the film packaging as well as over the strapping.

The application of the further part or the jacket film can take place outside of a baling press and, if necessary, on the pressed bale which has been relieved of compression and is already provided with parts of the film packaging and is strapped. This saves time, especially the cycle time of the baling press, and can also be done at a central point in a baling press. The further strapping with the two or more strapping bands can then be placed over the further part or the jacket film. The further part or the jacket film is located between the first strapping and the further strapping.

Another advantage of the straps of the further strapping, which are preferably arranged close to the pressing sides, results from the aforementioned cuboid-like shape with trapezoidal peripheral sides. Here, the circumferential length is different in the upper and lower areas of the trapezoidal shape. The straps arranged and tensioned here for the further strapping can stabilize the trapezoidal shape in a special way. They can particularly counteract undesired deformation of the packed pressed bale due to axial forces, for example due to weight forces in a stack of bales. The straps can be tensioned once or several times and, if necessary, re-tensioned, as is possible, for example, for plastic straps and with known strapping units. As a result, the belt tension can be evened out and, if necessary, also regulated. A friction weld closure of the straps can be advantageous here. The claimed compressed bale and the claimed packaging technology have particular advantages if the textile fibers of the compressed bale are designed as thermosensitive synthetic fibers made of a polymer, for example viscose, polyester, polypropylene, polyethylene, polyamide, acetate, acrylic or mixtures of these materials. This applies in particular to multi-component fibers, for example so-called BiCo fibers. The thermosensitive fibers can have a low melting point, for example between 60.degree. C. and 200.degree. The textile fibers are intended and designed for use in the textile sector and for further industrial processing, for example as nonwoven products, as crosslinked products, for example woven, knitted or knitted products.

If the film packaging is formed from a material that can be melted under heat, in particular a plastic such as polyethylene or polypropylene, the packaging technology claimed has particular advantages. It has a purely mechanical effect and does not exert any thermal influence on fusible film packaging or on thermosensitive synthetic fibers. In this way, melting phenomena and contamination of the synthetic fibers can be avoided. This is particularly advantageous in the case of fiber materials for later use in the hygiene area.

The multi-part film packaging can be formed from packaging films made of the same or different materials, in particular plastics. By using different materials, for example, different mechanical loads can be taken into account. To cover the press sides, the corners and an edge area of the peripheral sides, a bottom sheet and / or a cover sheet made of a mechanically resistant and possibly tensile and stretchable material, for example PP, ribbon or fabric sheet or the like, can be used will. The cladding film can be made from a less resistant and possibly stretchable material, for example PE. The stretchable property can be beneficial for minimizing the overhang on the bale body.

The claimed bale and its packaging can have a different design. The bottom film and the cover film of the multi-part film packaging can be arranged on the press sides and cover the adjacent peripheral sides in areas. The bottom film and the cover film can each have the said folded-over shape or the hood or bag shape. The multi-part film packaging can also have a jacket film on the circumferential sides, which overlaps and covers the base film and the cover film on the circumferential sides at least partially on the outside, with at least one strapping band of the further strapping being arranged on the overlap. In a variant, the first strapping can be arranged on the outside directly and with contact on the bottom foil, the cover foil and the jacket foil (15), the further strapping on the outside on the bottom foil, the cover foil and the jacket foil as well as the one strapping preferably directly and with Touch contact is arranged.

In another variant, the one first strapping can be arranged on the outside directly on the bottom foil and the cover foil, the casing foil being arranged on the outside on the bottom foil, the cover foil and the one strapping preferably directly and with physical contact, and the further strapping on the outside on the casing foil is preferably arranged directly and with touch contact. The packaging technology claimed has the particular advantage that it mechanically fixes and seals the film packaging on the pressed bale and stabilizes the pressed bale and thereby efficiently ensures the quality of the fiber material.

The claimed packaging device and the packaging method can have at least one strapping device and a strapping method, which are designed to apply said further strapping to the circumferential sides of the pressed bale or bale body. Such a packaging device and packaging method can be used independently. They can be used for retrofitting purposes. The further strapping can thus be subsequently attached to a pressed bale that has already been otherwise provided with film packaging and strapping. Existing conventional packaging technology can be supplemented with the claimed packaging equipment and packaging method by means of retrofitting.

In addition to the strapping device and the strapping process, the claimed packaging device and the packaging method can have further components. This can be, for example, a strapping device for the first strapping and / or an application device for the multi-part film packaging as well as the associated processes. One such completed

Packaging equipment and the packaging process can be used in addition to a production facility

Production processes are used by way of original equipment or retrofitting.

The claimed production facility and the production process can be a packaging facility and a packaging process of the aforementioned type include. The production facility can have one or more baling presses. Alternatively, pressed bales can be produced outside the production facility and delivered to it.

The strapping device can work manually or preferably automatically. It can be with a

Production facility can be arranged outside of the one or more baling presses. It can in particular be arranged in an external strapping station. Several balers can have a common strapping station.

Other components of the packaging device, in particular a strapping device for the first strapping and / or an application device for attaching the film packaging, can be arranged on the baling press or presses. The external strapping station can thus be fed with pressed bales already provided with foil packaging and the first strapping. This separation of the packaging technology has advantages for an optimization of the baling technology and the best possible utilization of the press cycle. In addition, a strapping device can be accommodated in an external strapping station with improved structural options and with better and simpler kinematics than on a baling press. The performance of a packaging facility and a production facility can be significantly increased. In particular, the bale throughput per hour can be high.

In the aforementioned second variant, a strapping device and a first

Application component of the application device can be arranged on the baler. The first application component applies the first one or more Parts of a multi-part film packaging, for example a base and cover film or at least a hood, on the compressed bale. The pressed bale and the first part or parts of a multi-part film packaging can then be strapped and fixed with the first strapping.

A second application component can be arranged outside the baling press and, if necessary, centrally with the operation of several baling presses. It applies at least one more part of the multi-part film packaging, e.g. a jacket film, to the relieved and, if necessary, already strapped pressed bale. The second application component can be assigned to said external strapping station.

It is also advantageous to divide the baling press into a pre-press and a finished press and connect them via a bale transporter. Several prepresses can work on a common finishing press and components of a packaging device there. The arrangement of a preferably automatic strapping device in one or more external strapping stations is also of particular advantage for this embodiment.

Further advantageous refinements of the invention are specified in the subclaims.

The invention is shown schematically and by way of example in the drawings. In detail: Figure 1: a pressed bale with a cross strapping in a side view together with a representation of a pressing means and a press box wall,

Figure 2: an end view of the pressed bale according to arrow II of Figure 1,

FIG. 3: a perspective view of the packed pressed bale from FIG. 1,

FIG. 4: a plan view of a pressed bale according to arrow IV of FIG. 2 together with an arrangement of a strapping device on the pressed bale, FIG. 5: a plan view of a production facility with several baling presses and an external strapping station with a strapping device,

FIG. 6: a side view of the arrangement according to arrow VI of FIG. 5,

Figure 7 to 9: another embodiment of a

Production facility for pressed bales in different perspective views,

FIG. 10: a variant of the arrangement of FIGS. 5 and 6 with a divided application device for the multi-part film packaging, Figure 11: a plan view of a strapped

Press bale with an application component and a connection tool for attaching a jacket film to the press bale and

FIGS. 12 and 13: a variant of a pressed bale and an application component with a different jacket film in a top view and a folded side view.

The invention relates to a pressed bale (1) and a packaging device (3) as well as a packaging method for the pressed bale (1). The invention also includes a production device (2) and a production method with said packaging device (3) and the packaging method. Figures 1 to 4 show a pressed bale (1) with a surrounding packaging (11) in different views. In Figure 1, a pressing means (32), for example a press ram, with strapping grooves (33) is also shown schematically. During the bale production, this is pressed against the pressed bale (1) with a high pressing force (F) in a preferably straight pressing direction (10). Figure 1 also shows schematically a press box wall (35) of a press box (34) which is shown in Figures 6 to 9, for example.

The pressed bale (1) consists of highly compressed and preferably short cut textile fibers. These are preferably the thermosensitive synthetic fibers mentioned in the introduction to the description. The short cut fibers are also known as staple fibers. The fibers are preferably fresh and not yet interwoven or otherwise connected fibers. The The pressed bale (1) is pressed and compacted, for example, with a high pressing force of 10 kN and more.

The pressed bale (1) has a bale body (4) which has two press sides (5, 6) that are spaced apart and opposite one another. The pressing sides (5, 6) are aligned transversely to the pressing direction (10). They are preferably essentially parallel. The pressing means (32) act on the pressing sides (5, 6). The for example essentially cuboid body (4) has four circumferential sides (7, 8) which are arranged between the pressing sides (5, 6) and lie opposite one another in pairs. The peripheral sides (7) are e.g. the broad sides and the peripheral sides (8) are the narrow sides of the bale body (4). The peripheral sides (7, 8) are aligned along the pressing direction (10). The pressing sides (5, 6) and the peripheral sides (7, 8) are aligned essentially at right angles to one another.

The pressed bale (1) or its bale body (4) usually has an essentially rectangular parallelepiped shape. In Figure 1, this is shown in the left half of the picture. The right half of the picture shows an abnormality that sometimes occurs in practice. The pressed bale (1) or its bale body (4) can namely also have a cuboid-like shape with a trapezoidal shape (9) on the peripheral sides (7, 8). The parallel sides of the trapezoidal shape (9) are arranged on the pressing sides (5, 6), the wider of these two trapezoidal sides being arranged on the pressing side (5) which is at the front in the pressing direction (10). The trapezoidal shape (9) can through

Frictional resistance of the fibers on the press box wall (35) arise.

The packaging (11) consists of a multi-part film packaging (12) and cross strapping (21). The cross strapping (21) is carried out by a first strapping (22) and a crossing further strapping (25) is formed.

The first strapping (22) has several parallel endless straps (23) which loop around the bale body (4) and are placed over the pressing sides (5, 6) and the two opposite circumferential sides (7), in particular broad sides . The belts (23) and the tire plane spanned by them are aligned along the pressing direction (10).

The further strapping (25) has several endless strapping bands (26, 27) which are only placed circumferentially over the circumferential sides (7, 8) of the bale body (4). These straps (26, 27) cross the straps (23) at a preferably right angle. The straps (26, 27) preferably do not extend over the pressing sides (5, 6).

The further strapping (25) has, for example, two strapping bands (26, 27) which are arranged parallel to one another. The strapping plane spanned by the endless strapping bands (26, 27) is oriented transversely to the pressing direction (10). The hoop plane of the straps (23) and the strapping plane of the straps (26, 27) are aligned transversely, preferably perpendicularly, to one another.

The straps (26, 27) of the further strapping (25) are arranged parallel to the pressing sides (5, 6). The further strapping (25) has, for example, at least two strapping bands (26, 27) which are each arranged off-center and close to a pressing side (5, 6). The two straps (26,27) are arranged on both sides of the middle of the bale. The strapping band (26) is adjacent to the upper pressing side (5), for example, and the other strapping band (27) is adjacent to the lower pressing side (6), for example. The further strapping (25) can also be additional Have straps (not shown).

The straps (26,27) of the further strapping (25) are stretched. They are tight against the ball body (4) with pressure. The strap tension is applied in a suitable manner when the straps (26, 27) are put on. The straps (26, 27) each have a connector (28), for example, which connects and secures the strap ends in their tensioned position. The straps (26,27) can have a width of 10-15 mm, for example. They can be made of plastic, alternatively of metal or another material. The connector (28) can be designed, for example, as a friction weld connection of plastic strapping bands (26, 27).

In the embodiment shown, the straps (26, 27) are designed as tensile straps of finite length. When they are placed on the pressed bale (1), they are pulled taut and tensioned, with their strap ends being connected in the tensioned position and fixed by the connector (28).

In another variant, the strapping tapes (26, 27) can be designed as elastic, finite tapes, for example flat adhesive tapes, which are elastically stretched when they are put on. The connector (28) can be designed as a mutual adhesive connection of the overlapping tape ends. The straps (26,27) can also be designed as elastic endless straps with a closed ring shape, which have a smaller circumference than the pressed bale (1), whereby they are widened when they are put on with a stretching frame and are applied to the pressed bale (1), where they then press against the pressed bale (1) elastically. The strapping bands (26, 27) can be designed, for example, as the flat bands shown with a rectangular cross section. Alternatively, they can have a different cross-sectional shape. This includes oval or circular cross-sections. The straps (26,27) can also have the form of ropes.

The one and, for example, upper strapping band (26) is attached to the wider and, for example, upper side of the trapezoidal shape (9). The other and e.g. lower strap (27) is applied to the narrower and e.g. lower side of the trapezoidal shape (9). By tensioning the straps (26, 27), the respective strapping (26, 27) can be adapted to the different circumferential length of the bale body (4) in the case of a trapezoidal shape (9).

The film packaging (12) is made up of several parts. For example, it can have two, three or more parts. In the embodiment shown, it is designed in three parts. The film packaging (12) has a base film (13) and a cover film (14) as well as a jacket film (15). The cover film (14) is attached to the pressing side (5) lying at the front against the pressing direction (10). The bottom film (13) covers the other press side (6). The cover film (14) and the base film (13) lie directly on the pressed bale (1) or on the bale body (4). The endless jacket film (15) wraps around the circumferential sides (7, 8) of the bale body (4). It lies on the outside on the cover sheet (14) and the bottom sheet (13). In the case of two-film packaging, the outer film (15), for example, can be omitted.

The film packaging (12) and the films (13, 14, 15) consist, for example, of a plastic material. This plastic material can melt under heat, for example during a welding process for the connection of foils. The film material can furthermore not be elastic or only slightly elastic. This gives it greater strength and resistance to external loads, especially a bale expansion after the press is relieved. Such a film material can consist, for example, of polyethylene or polypropylene and, if necessary, can also be solidified and stretch-resistant by embedded ribbons, by stretching or the like. Foil material with embedded parallel ribbons or with embedded fabric is referred to as ribbon film or fabric film.

The base film (13) and the cover film (14) are present in the pressed bale production as flat film blanks, which are each placed flat on a pressed side (5, 6) and protrude beyond the bale circumference. These overhangs are each folded over and applied to the circumferential sides (7, 8). This forms edge folds (17). In the three-part film packaging (12) shown according to FIGS. 1 and 2, the edge folds (17) of the top and bottom films (14, 13) are spaced apart from one another. Figures 1 and 2 illustrate the arrangement.

Furthermore, corner folds are formed from the preferably rectangular foil blanks of the top and bottom foil (14, 13) when they are folded over, which are then folded over on a circumferential side (7, 8), for example on the respective narrow side (8), and a corner fold (18) form. The corner folds (18) are shown in FIG. Alternatively, the corner folds can be folded over on the wide circumferential side (7) and, if necessary, held by the first strapping (22).

The jacket film (15), which is also referred to as a belly bandage, is applied to the bale body (4) after the bottom and top film (13, 14) during the production of pressed bales. The jacket film (15) is wrapped around the circumferential side (7, 8) and covers the edge folds (17) and the corner folds (18) to form at least one overlapping in areas (19). The cladding film (15) can be applied before the first strapping (22) is applied.

The at least two straps (26, 27) of the further strapping (25) are arranged on the edge folds (17) and the corner folds (18). In the case of a three-part film packaging (12), they are also arranged on the overlaps (19). Figures 1 and 2 show this arrangement.

The shell film (15), which is endless in the final state, is also formed, for example, from a finite and, for example, rectangular film blank, which is wrapped around all circumferential sides (7, 8) and encloses the circumference of the bale body (4) in a closed ring, the free ends of the Foil blank are then connected with a connecting means (16). This can, for example, be a weld seam shown in FIG. Alternatively, the connecting means (16) can be designed as a clip or adhesive or in some other way. FIGS. 11 to 13 show variants of this embodiment.

The cladding film (15) consisting, for example, of a non-stretchable or slightly stretchable material can have a greater circumferential length than the ball body (4). This can be due to the type of connecting means (16) and the connecting tool (52). As a result of this excess length, a protrusion (20) of the jacket film (15) can be formed with respect to the circumferential sides (7, 8). The protrusion (20) is mostly located on the circumferential sides not covered by the strapping (22), for example the narrow circumferential sides (8). Figure 4 illustrates this training. A cladding film (15) made of a stretchable material, for example PE, can possibly be stretched and stretched when it is put on and can then shrink back elastically to the ball body (4) and have less protrusion (20). It can also be taken from the relieved bale body (4) be filled in and, if necessary, stretched a little and also have less protrusion (20).

The straps (26, 27) of the further strapping (25) are placed over the circumferential sides (7, 8) and over the respective protrusion (20). They stretch the overhang (20) and press the jacket film (15) tightly against the bale body (4) and against the edge folds (17) and corner folds (18) located below the overlap (19). The cross strapping (21) ensures that the film packaging (12) sits tightly on all sides on the bale body (4).

In particular, the ball areas lying between the overlaps (19) are sealed.

In one embodiment of the packaging technology, the multi-part film packaging (2) is first applied to the pressed bale (1) or its bale body (4). The pressed bale (1) or bale body (4) is held between pressing means (32) under pressure in the pressing direction (10). The first strapping (22) is then placed over the pressed bale (1) and the film packaging (12). Then the further strapping (25) is attached and the cross strapping (21) is formed. The straps (26, 27) of the further strapping (25) lie on and above the straps (23) of the first strapping (22). The straps (26, 27) do not dig into the already expanded bale (1) as deeply as the straps (23) of the first strapping (22). This is an advantageous implementation. On the other hand, the order in which the first strapping (22) and the further strapping (25) are applied can be reversed when applied in a baling press. Another variant of FIG. 10 is explained below.

The packaging (11) is by means of a

Packing device (3) attached to the pressed bale (1). The further strapping (25) with the one or more Strapping bands (26, 27) are attached to the pressed bale (1) or to the bale body (4) by means of a strapping device (41). The pressed bale (1) has previously been provided with the film packaging (12) and the first strapping (22). The strapping device (41) can be operated and guided manually or it can work automatically and can, if necessary, be arranged in a stationary manner.

The packaging device (3) can comprise at least the strapping device (41). The packaging device (3) can additionally comprise a strapping device (38) for forming the one strapping (22) and / or an application device (46) for attaching the film packaging (12).

In the embodiment shown, the strapping device (41) is arranged in a separate strapping station (45). It preferably works automatically.

The application of the further strapping (25) can thus take place separately from the application of the film packaging (12) and from the application of the one strapping (22) to the pressed bale (1) in terms of location and time.

The strapping device (41) can be designed in different ways. Figure 4 shows a schematic embodiment.

The further strapping (25) can be attached horizontally to a pressed bale (1) lying on a pressing side (6). Alternatively, the pressed bale (1) can be set up and lie or stand on one of its peripheral sides (7, 8). The further strapping (25) can be attached to the pressed bale (1) with a vertical orientation. Several straps (26, 27) can be placed around the pressed bale (1) together and simultaneously or one after the other. The strapping device (41) shown schematically in FIG. 4 has, for example, a strapping head (42), a strap guide (43) for at least one of the straps (26, 27) and a band supply for strapping. At the

Strapping head (42) or elsewhere, a tensioning device (49) for the strapping band (26,27) and a connecting device (50) for the free ends of the strapping band (26,27) and the attachment of the connector (28) can be arranged.

Figures 5 to 9 and 10 each show an example of a production facility (2) with a

Packaging device (3) in different variants.

In the two variants from 5 to 9, the

Production facility (2) has one or more baling presses (29). These each have a prepress (30) and a finishing press (31). In the pre-press (30), the fiber material is filled into a press box (34) with side press-box walls (35) and pre-compressed with a pre-press device. Filling and pre-pressing can be done in batches. In the final press (31), the pre-pressed bale is fully pressed and compacted under the aforementioned high pressing force (F) in the pressing direction (10). Parts of the packaging device (3), in particular a strapping device (38) for attaching the first strapping (22) and / or an application device (46) for attaching the film packaging (12) to the pressed bale (1), can be attached to the finishing press (31), be arranged. The base film (13) and the cover film (14) can be placed on pressing means (32) and temporarily fixed, for example, before pressing. The application device (46) can alternatively be arranged on the prepress (30). In the variant of FIGS. 5 and 6, the prepress (30) and the finished press (31) are combined in a baling press (29). The pre-pressing and final pressing take place at the same point with the same pressing direction (10) and in the same press box (34). Alternatively, the baling press (29) can be designed as a carousel press with separation of the pre-press and finished press (30, 31).

The pressed bale (1), which is fully pressed and provided with the film packaging (12) and the first strapping (22), can be transported away from the one or more baling presses (29) by means of a bale conveyor (37) and one or more assigned or central strapping stations (45 ) for attaching the further strapping (25). Figures 5 and 6 show this design.

The fully packaged pressed bale (1) with the completed packaging (11) including film packaging (12) and cross strapping (21) can be transported away from the strapping station (45) and, if necessary, stored. The pressed bales (1) produced in the claimed manner are particularly suitable for the formation of a pressed bale stack. Here, three or more pressed bales (1) can be arranged on top of one another. Such a stack of bales can be stored in a warehouse or transported away for further use with a suitable means of transport.

FIGS. 7 to 9 show a variant of a baling press (29) in which the pre-press (30) and the finished press (31) are separated from one another. Several pre-presses (30) can be assigned to a common finished press (31), the pre-pressed bales (1) being fed to the finished press (31) by means of a bale transporter (36). Otherwise, the production facility (2) can do the same in the variant Have training as in Figures 5 and 6, in particular with respect to the strapping station and the bale conveyor (37).

The application device (46) for attaching the film packaging (12) can be assigned to the prepress (30). The bale transporter (36) has a tensionable gripping fork with which the pressed bale (1), which is provided with a multi-part film packaging (12), can be removed from the pre-press (30) and fed to the finished press (31) in the pre-pressed state. The bale transporter (36) can be designed, for example, as an overhead conveyor with a rotatable gripping fork that can be moved along and in front of the pre-presses (30). It moves in a free tramline arranged between the prepresses (30) and the distant finishing press (31).

The strapping device (38) can be assigned to the finishing press (31). The strapping device (38) can have a strapping head (39) and a plurality of tire channels (40). FIG. 9 shows the finished press (31) with the partially packaged pressed bale (1) with film packaging (12) and the first strapping (22).

The finishing press (31) has the aforementioned pressing means (32) and a press drive. The pressing means (32) are formed, for example, by pressing punches with strapping grooves (33) arranged vertically one above the other and with horizontal alignment. The press drive moves e.g. the upper press ram (32) against the lower stationary press ram. The pressing side (5) of the pressed bale (1) faces the upper and driven press ram (32).

In the final press (31), the pre-pressed bale (1) provided with the film packaging (12) is completely pressed and compacted, with the first strapping (22) is attached in the pressed state through the strapping grooves (33) on the pressed bale (1). When the press is then released, the pressed bale (1) relaxes in the pressing direction (10) and thereby expands the film packaging (12), the straps (23) of one of the strapping (22) also cutting into the bale body (4) and the constrictions (24) form. The constrictions (24) are deeper on the pressing sides (5, 6) than on the circumferential sides (7), in particular broad sides. The pressing sides (5, 6) can be distinguished from the strapped peripheral sides (7) by means of the different constrictions (24).

Figure 10 shows a further variant of the

Production facility (2). This differs in the design and arrangement of the

Application device (46) from the embodiment of FIGS. 5 and 6.

In the variant of FIG. 10, the application device (46) for attaching the multi-part film packaging (12) is constructed in several parts. It has an application component (47) which is arranged on the baling press (29) and which attaches the first part or parts of the film packaging (12) to the pressed bale (1) or to its bale body (4). These can be, for example, the bottom film (13) and cover film (14) shown, which are attached to the pressed bale (1) held between pressing means (32) by means of a positioning device and folding fingers or the like and with the formation of the edge folds (17) and the corner fold (18) be attached. Alternatively, a first part of the film packaging (12) can be formed by at least one hood or in some other way. The first part or parts of the film packaging (12) are then provided with the first strapping (22) and fixed by the strapping device (38). As FIG. 10 illustrates, the corner fold (18) can be folded onto the wide circumferential side (7) and fixed here by one or more straps of the first strapping (22). The partially packed and strapped pressed bale (1) is then transported away with a bale conveyor (37).

The application device (46) also comprises a second application component (48) which attaches a further part of the film packaging (12), e.g. a jacket film (15), to the partially packaged and strapped pressed bale (1). The application component (48) is, for example, connected upstream of the strapping station (45) or integrated into it.

Figure 11 shows a first variant of

Application component (48). The jacket film (15) can be formed by a film curtain (51) stretched between two film coils and wrapped around the pressed bale (1) transported and moved in the direction of the arrow by a conveyor (54) during the transport movement as a lying abdominal bandage and by cutting and connecting, e.g. welding , the film ends are applied by means of an adjustable connecting tool (52). On the one hand, the connecting means (16) of the cladding film (15) and, on the other hand, a film curtain (51) behind the separation point are formed again. The conveyor (54) can be part of the bale conveyor (37).

FIGS. 12 and 13 disclose a second variant of the application component (48). The jacket film (15) is wrapped around the pressed bale (1) with a connecting tool (52), with its film ends being placed on top of one another on a peripheral side (7, 8) to form an overlap (53). The overlap (53) is located, for example, on a broad side (7). The cladding film (15) also encloses in this variant in a closed one Ring the pressed bale (1) or its bale body. The protrusion (20) can be smaller than in the previous exemplary embodiment or can be omitted. This application variant has advantages when the jacket film (15) is made from a tensile and stretch-resistant material, for example PP or ribbon film or fabric film.

The cladding film (15) can be fixed at the overlap (53) with a connecting means (16). This can be formed, for example, by gluing or a strap placed over the overlap (53). This can extend, for example, parallel to the straps (23) of the first strapping (22).

FIG. 12 shows a connection tool (52) in dashed lines. This has, for example, a swivel arm with a gripping device that can be rotated relative to the currently stationary bale (1), which grips a film end at a feed from a film coil (not shown) of the jacket film (15) and rotates around the circumferential sides (7, 8) of the The pressed bale (1) loops, the initial end of the film being held on the pressed bale (1) with a suitable fixing agent. After the overlap (53) has been formed, the jacket film (15) is separated from the film web fed in from the coil and the connecting means (16) is placed. The severed end of the film web on the feed side remains connected to the connecting tool (52) and is ready for the next application process of a jacket film or a bandage (15). The connecting tool can be designed, for example, according to WO 2005/012098 A1 or WO 2015/114532 A1.

In another variant, not shown, the connecting tool (52) can be designed according to EP 0528 892 B1 and have a film arm with a gripper that can be moved longitudinally and transversely to the pressed bale (1), which pulls the jacket film (15) off a stationary or carried film coil, loops around the pressed bale and connects the film ends with or without overlapping and grabs the film end on the feed side again for the next application process.

The connecting tool (52) described above can also be used, with appropriate adaptation, to apply the jacket film (15) inside the baling press to the pressed bale (1) held between pressing means (32).

EP 0528 892 B1, WO 2005/012098 A1 and WO 2015/114532 A1 are incorporated into the application by reference.

In both variants, the jacket film (15) lies on the outside on the base and cover film (13, 14) and on the first strapping (22).

In the subsequent strapping station (45), the additional strapping (25) is attached in the manner described above and the cross strapping (21) is formed. The additional strapping (25) is attached to the outside of the jacket film (15) and is located in the manner described above on the overlap (19) and possibly on the corner fold (18). The jacket film (15) is located between the straps (22, 25).

Modifications of the embodiments shown and described are possible in various ways.

In the exemplary embodiments shown, the baling presses (29) are designed as vertical presses which have a vertical pressing direction (10) and upper and lower pressing means (32) or press rams. Alternatively, a different design, e.g. as a horizontal press with a lying, in particular horizontal pressing direction (10) and appropriate alignment of the pressing means (32) and the pressing drives possible.

A multi-part film packaging (12) can be in two parts. It can be formed, for example, from two hood-like or bag-like bottom foils (13) and cover foils (14). In the case of a two-part design, the hoods or sacks can overlap one another. In the case of a three-part design of the film packaging (2), the bags or hoods can be enclosed by an annular, endless or overlapped casing film (15) with an overlap analogous to FIG.

The pressed bale (1) can have a shape deviating from the preferred cuboid shape and correspondingly differently designed circumferential side (s).

Furthermore, it is possible to combine the features of the exemplary embodiments described above and the modifications mentioned with one another in a different manner and, in particular, to interchange them.

REFERENCE CHARACTERISTICS

1 pressed bale

2 production lines

3 packaging facility

4 ball body

5 Press side up, top side

6 Press side down, underside

7 circumferential side, broad side

8 circumferential side, narrow side

9 trapezoidal shape

10 pressing direction

11 packaging

12 foil packaging

13 bottom foil

14 cover sheet

15 coat foil, belly band

16 Lanyards

17 Edge fold

18 corner fold

19 overlap

20 supernatant

21 Cross strapping

22 strapping

23 volume

24 constriction

25 more strapping

26 strapping tape

27 strapping

28 connector

29 baler

30 prepress

31 Finishing press

32 press means, press ram

33 strapping groove

34 press box

35 Press box wall 36 bale transporters

37 bale conveyors

38 Strapping device

39 strapping head 40 tire channel

41 Strapping tool

42 strapping head

43 Tape guide

44 strap supply 45 strapping station

46 Application device

47 Application component base and cover film

48 Application component, cladding film

49 clamping device 50 connecting device

51 Foil curtain

52 Connection tool

53 Overlap

54 sponsors

F pressing force

Claims

PATENT CLAIMS

1.) Pressed bales with a bale body (4) and a surrounding packaging (11) that preferably completely envelops the bale body (4), the pressed bale (1) being made of highly compressed, short-cut textile fibers and pressing sides (5 , 6) and circumferential sides (7,8) arranged between the pressing sides (5,6), the pressing sides (5,6) being acted upon by a pressing means (32) in a pressing direction (10) during the production of the pressed bales, and the packaging (11) has a multi-part film packaging (12) resting on the bale body (4) and a strapping (22) with several parallel endless straps (23) which are placed over the pressing sides (5, 6) of the pressed bale (1), thereby characterized in that the pressed bale (1) has a cross strapping (21) comprising the one strapping (22) and another strapping (25), the further strapping (25) on the film packaging (12) and on the straps (23) ) is arranged on the outside and has several, in particular two, endless strapping bands (26, 27) which are only placed circumferentially over the circumferential sides (7, 8) and cross the bands (23).

2.) pressed bale according to claim 1, characterized in that the pressing sides (5, 6) are aligned transversely to the pressing direction (10) and the peripheral sides (7, 8) are aligned along the pressing direction (10).

3.) pressed bale according to claim 1 or 2, characterized in that the pressed bale (1) has a rectangular parallelepiped shape or a cuboid-like shape with peripheral sides (7, 8) in trapezoidal shape (9).

4.) pressed bale according to claim 1, 2 or 3, characterized in that the g e k e n n z e i c h n e t

Strapping bands (26, 27) of the further strapping (25) are arranged parallel to one another and parallel to the pressing sides (5, 6).

5.) Press bale according to one of the preceding claims, characterized in that the further strapping (25) has two straps (26,27) which are arranged eccentrically and close to the press sides (5,6).

6.) Pressed bale according to one of the preceding claims, characterized in that the straps (26,27) of the further strapping (25) are tensioned and with pressure and lie tightly against the bale body (4) and the film packaging (12).

7.) pressed bale according to one of the preceding claims, characterized in that the multi-part film packaging (12) comprises a plurality of flexible plastic packaging films.

8.) Pressed bale according to one of the preceding claims, characterized in that the multi-part film packaging (12) rests directly on the bale body (4) with contact.

9.) pressed bale according to one of the preceding claims, characterized in that the multi-part film packaging (12) has a bottom film (13) and a cover film (14), which is attached to the Press sides (5,6) are arranged and cover the adjoining peripheral sides (7,8) in areas, the multi-part film packaging

(12) also has an annularly closed jacket film (15) on the circumferential sides (7, 8), which overlaps (19) and covers the base film (13) and the cover film (14) on the circumferential sides (7, 8) at least in some areas on the outside , wherein at least one strapping band (26,27) of the further strapping (25) is arranged on the overlap (19). Pressed bale according to claim 9, characterized in that the one strapping (22) is arranged on the outside directly on the bottom foil (13), the cover foil (14) and the jacket foil (15), the further strapping (25) on the outside on the bottom foil ( 13), the cover film (14) and the jacket film (15) and the one strapping (22) is arranged. Pressed bale according to claim 9, characterized in that the one strapping (22) is arranged on the outside directly on the bottom foil (13) and the cover foil (14), the jacket foil (15) on the outside on the bottom foil

(13), the cover film (14) and the one strapping (22) is arranged and the further strapping (25) is arranged on the outside of the jacket film (15). Pressed bale according to one of Claims 9 to 11, characterized in that the base film (13) and the cover film (14) each have an edge fold (17) folded over on the peripheral sides (7, 8) and, if necessary, a folded corner fold (18), wherein the straps (26,27) of the further strapping (25) are arranged on the edge fold (17) and possibly the corner fold (18).

13.) Pressed bale according to one of claims 9 to 12, characterized in that the film packaging (12) has an endless or end-overlapped (53) jacket film (15) with a connecting means (16), in particular a weld seam, wherein the jacket film ( 15) has a protrusion (20) with respect to the pressed bale (1) and wherein at least one strapping band (26, 27) of the further strapping (25) is arranged on the protrusion (20). 14.) Pressed bale according to one of the preceding claims, characterized in that the one strapping (22) is arranged on the film packaging (12) and the further strapping (25) is arranged on the one strapping (22).

15.) Pressed bale according to one of the preceding claims, characterized in that the film packaging (12) is formed from a material that can be melted under heat, in particular from plastic.

16.) pressed bale according to one of the preceding claims, characterized in that the fibers of the pressed bale (1) are designed as thermosensitive synthetic fibers made of a polymer.

17.) Packaging device for pressed bales (1) for attaching a packaging (11) surrounding the pressed bale (1), the pressed bale (1) being formed from highly compressed, preferably short-cut, textile fibers and opposite pressing sides (5, 6) and between the Having circumferential sides (7,8) arranged on pressing sides (5,6), the pressing sides (5,6) being acted upon by a pressing means (32) in a pressing direction (10) during the production of the pressed bales, and the packaging (11) having one on the Bale body (4) has multi-part film packaging (12) lying on top and a first strapping (22) with several parallel endless straps (23) which are placed over the pressing sides (5, 6) of the pressed bale (1), characterized in that the packaging device (3) has a strapping device (41) which is designed to apply a further strapping (25) to the pressed bale (1) with several, in particular two, endless strapping bands (26, 27) which only extend over the circumferential sides (7, 8) are placed circumferentially and are arranged on the outside of the film packaging (12) and on the straps (23), the straps (26, 27) crossing the straps (23) to form a cross strapping (21) indicates that the

The strapping device (41) has a strapping head (42), a strap guide (43) and a supply of strapping tape (26, 27), a tensioning device (49) for the strapping tape (49) on the strapping device (41), in particular on the strapping head (42). 26,27) and a

Connecting device (50) for the free ends of the strap (26,27) is arranged. Packaging device according to claim 17 or 18, characterized in that the strapping device (41) works manually or automatically and is in particular arranged in a separate strapping station (45). 20.) Packaging device according to claim 17, 18 or 19, characterized in that the packaging device (3) has a strapping device (38) for attaching the one

Has strapping (22) on a pressed bale (1) held under compression.

21.) Packaging device according to one of claims 17 to 20, characterized in that the packaging device (3) has an application device (46) for attaching the film packaging (12) to the pressed bale (1). 22.) Packaging device according to claim 21, characterized in that the multi-part film packaging (12) has a bottom film (13) and a cover film (14) and an annularly closed jacket film (15), wherein the application device (46) is designed to have a To attach the bottom foil (13) and a cover foil (14) to a pressed bale (1) kept under compression and to subsequently attach a jacket foil (15) to the pressed bale (1) relieved of the compression.

23.) Production device for pressed bales (1), which are formed from highly compressed, preferably short-cut, textile fibers and pressing sides (5, 6) opposite one another and between the

Have circumferential sides (7,8) arranged on pressing sides (5,6), the pressing sides (5,6) being acted upon by a pressing means (32) in a pressing direction (10) during the production of the pressed bales, and the production device (2) having a

Has packaging device (3) for the pressed bales (1), characterized in that that the packaging device (3) is designed according to one of claims 17 to 22.

24.) Production device according to claim 23, characterized in that the

Production facility (2) has one or more baling presses (29).

25.) Production facility according to claim 24, characterized in that the manual or automatic strapping device (41) is arranged outside the baler (s) (29), in particular in an external strapping station (45). 26.) Production device according to claim 24 or 25, characterized in that a strapping device (38) for the one strapping (22) of the baler (s) (29) is arranged.

27.) Production device according to claim 24, 25 or 26, characterized in that an application device (46) for attaching the film packaging (12) is at least partially arranged on the baler (s) (29).

28.) Production device according to claim 27, characterized in that the application device (46) is arranged on the baler (s) (29)

Application component (47) for attaching a base film (13) and a cover film (14) to the pressed bale (1) acted upon by the pressing means (32) and an application component (48) arranged outside the baler (s) (29) for attaching a has a ring-shaped closed jacket film (15) on the pressed bale (1). Production device according to Claim 28, characterized in that the one arranged outside the baling press (s) (29)

Application component (48) is connected upstream of the manual or automatic strapping device (41), in particular an external strapping station (45), or is integrated there. Production device according to one of Claims 24 to 29, characterized in that the baling press (29) has a pre-press (30) and a finishing press (31), the finishing press (31) pressing means (32), in particular press rams, with strapping grooves (33) and has a press drive. Production device according to one of Claims 24 to 30, characterized in that the baling press (29) has a bale conveyor (37) for transporting the pressed bales (1) to an external strapping station (45) and possibly to an external application component (48). Method for packing pressed bales (1) with a packaging (11) surrounding the pressed bale (1), the pressed bale (1) being formed from highly compressed, preferably short-cut, textile fibers and opposite pressing sides (5, 6) and between the pressing sides (5,6) arranged circumferential sides (7,8), the pressing sides (5,6) being acted upon by a pressing means (32) in a pressing direction (10) during the production of the pressed bales and the packaging (11) opening one the bale body (4) overlying multi-part film packaging (12) and a first strapping (22) with several parallel endless straps (23), which over the pressing sides (5,6) of the pressed bale (1) are placed, characterized in that a further strapping (25) with several, in particular two, endless strapping bands (26,27) is attached to the pressed bale (1), which straps only over the Circumferential sides (7, 8) are placed circumferentially and are arranged on the outside of the film packaging (12) and on the straps (23), the straps (26, 27) crossing the straps (23) to form a cross strapping (21) Claim 32, characterized in that a base film (13) and a cover film (14) of the multi-part film packaging (12) are preferably attached directly to the press sides (5, 6) and cover the adjoining peripheral sides (7, 8) in areas, and in addition an annularly closed jacket film (15) of the multi-part film packaging (12) is attached to the peripheral sides (7, 8), which overlaps the base sheet (13) and the cover sheet (14) on the peripheral sides (7, 8) at least partially on the outside (19) and covered, with at least one strapping band (26,27) of the further strapping (25) being attached to the overlap (19). Method according to claim 32 or 33, characterized in that the one strapping (22) is attached on the outside directly to the bottom foil (13), the cover foil (14) and the jacket foil (15), after which the further strapping (25) is applied on the outside the bottom film (13), the cover film (14) and the jacket film (15) and the one strapping (22) is attached. The method according to claim 32 or 33, characterized in that the one strapping (22) is attached on the outside directly on the bottom foil (13) and the cover foil (14), after which the jacket foil (15) is attached on the outside of the bottom foil

(13), the cover film (14) and the one strapping (22) is attached and then the further strapping (25) is attached on the outside of the cladding film (15). Method according to one of Claims 32 to 35, characterized in that the jacket film (15) is subsequently attached to a pressed bale (1) outside of a baling press (29), which is already attached to a first part of the multi-part film packaging (12) and to the a strapping (22) is provided. Method according to claim 36, characterized in that on the

Cladding film (15) then the further strapping (25) is attached, the cladding film (15) being arranged between the one strapping (22) and the further strapping (25).