Baler

Abstract

A baling press designed for compressing supplied loose mineral fibers (2) into bales (3), characterized in that the baling press (1) has a feeding device (5), a preferably horizontally arranged filling device (6) and a pressing device (7) with an upright pressing shaft (17) adjoining the filling device (6), with pressing rams (21, 22) therein, with a pressing ram drive (24, 24') and with a pressing box (20, 20') in which the mineral fibers (2) are compressed, wherein the pressing ram drive (24, 24') comprises at least one upright electromechanical linear drive (25, 26).

Description

[0001] The invention relates to a baling press for mineral fibers with the features in the preamble of the main claim.

[0002] US Patent 4,535,537 A discloses a method for compressing mineral fibers in roll form into a bundle using a pressing device and packaging them. This pressing technique requires a bonded form of mineral fibers in the shape of fiber rolls.

[0003] DE 20 2015 102 730 U1, DE 296 09 493 U1 and DE 200 14 583 U1 each disclose a conventional hydraulic baling press for insensitive staple fibers or tow made of synthetic fibers, natural fibers or mixed materials. The press ram drive of the pressing device is designed as a hydraulic cylinder.

[0004] WO 2024 / 056924 A1 concerns an electromechanical drive for horizontal recycling or feed presses, where the pressing force is to exceed 600 kN and the press stroke is to exceed 1500 mm, which is unsuitable for mineral fibers.

[0005] US Patent 3,643,589 A describes a horizontally arranged waste compactor in which the box-shaped press ram is moved by means of a spindle nut mounted at the rear of the ram on a stationary spindle driven by an electric motor. The compactor presses the waste into a horizontal compaction box, with an overload relay preventing overload of the compactor drive in the event of a blockage and clogging by the waste.

[0006] From DE 29 42 227 A1, a press plate drive for baling presses is known, comprising a horizontally arranged spindle, a double-cardanically adjustable spindle nut mounted on the housing, and an electric motor with 1.5 kW and a pressing force of 60 kN. The electromechanical press plate drive is intended to replace conventional hydraulic drives in enclosed spaces such as bank buildings, office buildings, etc.

[0007] German patent DE 10 2020 115 748 A1 discloses a horizontal pressing device for compressing frozen meat products by approximately 10% to 30% down to a predetermined volume. The volume of the frozen meat product is determined via the motor current.

[0008] The DE 10 2019 115 616 A1 deals with a bale opener and the processing of loose bale material using a camera.

[0009] The object of the present invention is to improve the pressing technology and to make it suitable for loose mineral fibers and sensitive mineral fibers.

[0010] The invention solves this problem with the features in the independent claims.

[0011] The claimed baling technology, i.e. the baling press, its use and the method for producing a pressed bale from mineral fibers, has several advantages.

[0012] The baling press according to claim 1 is suitable for compressing loose mineral fibers into bales. The mineral fibers are artificially produced mineral fibers, e.g., glass fibers or glass wool fibers, rock wool fibers, slag wool fibers, etc. The mineral fibers are fragile, and the baling press and the process are adapted accordingly.

[0013] The baler can comprise a feeding device, a preferably horizontally arranged filling device, and a pressing device. The pressing device can have an upright pressing chamber connected to the preferably horizontally arranged filling device. The pressing chamber can, for example, include a pressing box in its lower section. The pressing device has pressing rams arranged in the pressing chamber, between which the mineral fiber material fed from the filling device is compressed in a suitable manner. At least one of the pressing rams is movable. The second of the stacked pressing rams can be stationary or also movable. The one or more movable pressing rams are connected to a pressing ram drive that raises and lowers them in the axial direction of the pressing chamber. The at least one pressing ram drive can be present individually or multiple times.

[0014] The pressing process can be divided into pre-pressing or pre-compaction and final pressing. Pre-pressing can take place during the transfer of the loose mineral fibers from the filling device to the pressing device. Final pressing to form the pressed bale shape can occur in the lower part of the pressing device, particularly in the press box.

[0015] The at least one press ram drive can include at least one upright electric linear actuator. Such an electric linear actuator is also known as an electric cylinder. It is particularly well-suited for compressing delicate mineral fibers. It is especially advantageous compared to a hydraulic press ram drive, such as those used in baling presses for short-cut synthetic textiles and the very high forces of 5,000 kN typical in those applications. With one or more electric linear actuators, the delicate mineral fibers can be compressed into the desired bales more effectively and reliably. Electric linear actuators offer more precise and accurate control, and can also be regulated if necessary. They can be encapsulated and designed for dry running, thus preventing the mineral fibers from being contaminated with lubricants or similar substances.

[0016] The baler, in particular the pressing device, can have a guide for a movable press ram connected to at least one electric linear drive. A guide reduces the risk of buckling for the electric linear drive. In particular, a single electric linear drive can be used on a correspondingly guided press ram. The guide can be designed in various ways, e.g., axially by upright guide rods between a press frame and the moving press ram, or laterally between the moving press ram and the press chute. It is also possible to connect several, e.g., two, electric linear drives in parallel to a single moving press ram. This reduces buckling loads and may eliminate the need for a guide.

[0017] The at least one electromechanical linear drive can be configured in various ways. A spindle drive configuration is preferred. This can include a controllable or adjustable electric motor and a transmission element for force and displacement, e.g., a spindle drive, which may, for example, have a ball screw. The spindle nut, which is guided non-rotatably in a drive housing and is linearly movable, can be connected to a push rod, possibly tubular, which extends from the drive housing and is attached or supported at its free end on the movable press ram. In another embodiment, an electromechanical linear drive can include said electric motor and a rack or other suitable linear transmission element or output element instead of a spindle or rack.

[0018] The press device can have suitable bearing arrangements for the at least one electric linear drive. Such linear drives can be sensitive to transverse forces. The bearing arrangement can prevent overloading of the at least one electric linear drive during press operation. For this purpose, it can, for example, include a floating bearing and a fixed bearing with a suitably appropriate arrangement.

[0019] The at least one electromechanical linear drive can be designed to compress the mineral fibers, or the fiber material formed from them, into bales in several, in particular two, pressing stages. Multi-stage compression is particularly useful during final pressing. It is advantageous to prevent overloading and breakage of the delicate mineral fibers. Multi-stage compression allows the mineral fibers sufficient time and space to move and shift during compaction without being overloaded.

[0020] The baling press, in particular the pressing device, can include a detection device for the stress on the mineral fibers during compression with the at least one electric linear drive. Detection can occur particularly during the final compression phase. The detection device can be designed and arranged in various ways. In an advantageous embodiment, the detection device is arranged on at least one electric linear drive. It can detect the stress acting on the mineral fibers during compression, for example, by measuring the electrical current of the motor. Alternatively, other detection methods are possible, such as measuring devices for force and / or displacement of components of the at least one electric linear drive, the movable press ram(es), or the like.The contamination of mineral fibers can also be detected indirectly via the movement of the press ram(es) and the resulting compaction of the mineral fibers or fiber material. Furthermore, other detection methods are available.

[0021] The at least one electric linear actuator can advantageously be controlled or regulated according to the measured load on the mineral fibers during compaction, particularly during final compaction. An electric linear actuator is especially well-suited for this purpose because it can be controlled and regulated very precisely. Not excessively high compaction forces are required for the compaction and compaction of mineral fibers. The axial force exerted by the at least one electric linear actuator during compaction can preferably be between 30 kN and 100 kN. Due to their shape, the mineral fibers have a large volume and a relatively low bulk density of, for example, approximately 6 kg / m³. 3 When compressing mineral fibers, long strokes at relatively low forces are advantageous. For this purpose, at least one electromechanical linear drive can provide the aforementioned axial force and a stroke length of preferably 2 m to 3.5 m.

[0022] The at least one electric linear actuator comprises the aforementioned electric motor and a linearly extendable drive element driven by it, e.g., a push rod. The at least one electric linear actuator may further include a seal for dry running of the extendable output element in order to reliably protect it and the other components of the linear actuator against the ingress of mineral fibers, which have aggressive and corrosive properties. A seal may be formed, for example, by a telescopic sleeve, a suitable wiper, or the like.

[0023] For effective and gentle compression of the mineral fibers, the baler can include a pre-compression zone and a final compression zone. In these zones, the mineral fibers are preferably compressed from different directions. The compression directions can be oriented perpendicular to each other. A pre-compression zone can be located, for example, in the feed device and / or at the top of the press chamber. The feed device can open laterally into this zone. Pre-compression can be achieved with a compression and compaction movement oriented perpendicular to the vertical press chamber, for example, during the transfer movement from the feed device into the press chamber. Further pre-compression can occur within the press chamber when the mineral fibers are pushed into the lower section, particularly into the press box.The filling and sliding of the mineral fibers into the press shaft, as well as the pre-pressing or pre-compaction, can take place multiple times and in batches.

[0024] The final pressing can take place in the subsequent lower section of the vertical press shaft, particularly in the press box. The aforementioned multi-stage pressing process can be carried out, especially during the final pressing phase, within the press box.

[0025] The baler can contain a single press box and can be designed as a so-called single-box baler. Alternatively, the baler can comprise several, in particular two, press boxes that move between a pre-compression area and a finishing area. It can, for example, be designed as a double-box baler or a so-called carousel baler, in which the pre-compression area and the finishing area are spatially separated. In this case, for example, two press boxes can be moved back and forth alternately between the pre-compression and finishing areas, in particular rotated in a carousel-like fashion with a rotating base.

[0026] The pressing device of such a baler can comprise several movable press rams and several press ram drives, which are arranged separately from one another and are specifically assigned to the pre-pressing and final pressing areas. In the pre-pressing area, pre-pressing or pre-compaction can occur multiple times, for example, firstly in the filling device and / or at the connection point to the pressing device, and secondly when the mineral fibers are inserted into the press box and compressed there with low pressure.

[0027] The filling device can have a filling chute connected to the feeding device and the press shaft. A controlled, reversible, and driven slide gate can be arranged in the filling chute. This slide gate can move the mineral fibers, which have been fed into the filling chute from the feeding device, into the subsequent press shaft and can, if necessary, compress them, in particular pre-compact them. The slide gate can also have an electric motor-driven liner drive of the type mentioned.

[0028] The feeding device of the baler can have a feed chute connected to the filling device, which is, for example, arranged horizontally. It can also be arranged at an angle or vertically. The feeding device can further include a separator arranged on the feed chute, which separates mineral fibers from an externally supplied gas stream. The mineral fibers can, for example, be transported in pipes by means of the gas stream, in particular an air stream, and fed to the separator.

[0029] The baler can include a monitoring device for the behavior of the mineral fibers within the cavities of the baler, particularly in the aforementioned shafts. This allows for the detection of any abnormal behavior of the mineral fibers during feeding, filling, and compression, such as the formation of undesirable fiber accumulations. This can adversely affect and potentially disrupt the compaction process. For example, an insufficient fill level will result in an inadequate quantity of fiber being introduced into the bale and the desired compaction. Furthermore, the monitoring devices can detect fiber migration, which could have adverse effects during fiber changes. The monitoring device can comprise one or more suitable monitoring means. These may preferably be optical monitoring means, particularly cameras. These may, for example,in the area of ​​the feed shaft, the filling shaft and the press shaft, in particular above the upper and preferably movable press ram.

[0030] The baler can further include a packaging device for the bales. The packaging device can be designed and arranged in various suitable ways. Packaging can be formed, for example, by parallel or cross strapping and / or by packaging webs, such as packaging film. Accordingly, a packaging device can include, for example, a strapping device and / or an application device for a film package that may be multi-part, particularly three-part. The strapping of the bale and the application of bottom and top films can, for example, take place inside the baler. A third packaging film in the form of a belly band can be applied inside or outside the baler to the bale, which is already fitted with bottom and top films and strapping, and may be secured with further cross strapping.

[0031] The single or multiple press boxes can be designed to facilitate the removal of the compressed bale. For example, it can have a door or similar feature and can remain stationary and be opened. In another variant, the press box can be movable and can be removed from the compressed bale, e.g., lifted off. The compressed bale can be formed within the press box. The press box can also have retainers that hold back the fibrous material or mineral fibers, preferably introduced from above, and prevent them from swelling. The retainers can be movable and / or be passed over by the upper, moving press ram, which has corresponding recesses or grooves for this purpose.

[0032] The baler may include a control unit to which the aforementioned components of the baler are connected, in particular the detection device and the monitoring device.

[0033] The invention also relates to a use of the baling press and a method for producing bales in a baling press, wherein the bales are formed from loose mineral fibers supplied according to the method claim. The bales can be produced in a baling press with the aforementioned and claimed configuration.

[0034] The device and material features mentioned for the baling press and the bale can also be features of the claimed method or of a use of the baling press for producing bales from loose mineral fibers. Conversely, this also applies to method features, which can also be material features of the claimed baling press and the bale. In particular, functional features of the baling press can be method features and vice versa. The features can therefore be interchanged between method and device claims.

[0035] The invention is illustrated in the drawings in an exemplary and schematic manner. Specifically, the drawings show: Fig. 1: A baler in perspective view with a press frame and attachments, Fig. 2: the baler from Fig. 1 in abstract form without extensions, Fig. 3: the baler from Fig. 1 and Fig. 2 in a partially broken side view, Fig. 4: A front view of the baler according to arrow IV of Fig. 3 and Fig. 5 and Fig. 6: a press box with a press ram and a pressing of the filled mineral fibers or fiber material in several stages, Fig. 7: electromechanical linear drive and Fig. 8: a carousel press.

[0036] The invention relates to a baling press (1) for producing and compressing a bale (3) from loose mineral fibers (2) and an associated method. The invention also relates to the use of the baling press (1) for compressing loose mineral fibers (2) into a bale, which may be packaged, and to the bale (3) produced from mineral fibers (2).

[0037] Fig. Figure 1 shows a baling press (1) in a single-box design for the production and compression of bales (3) made of loose mineral fibers (2) in a perspective view. Fig. Figure 8 schematically shows a baling press (1) in the form of a two-box press or so-called carousel press.

[0038] The mineral fibers (2) are supplied and fed into the baling press (1) from an external fiber supply, e.g. in an air stream or other gas stream. Fig. Figure 1 illustrates this with an arrow.

[0039] The baler (1) comprises, in its various versions, a feed device (5) into which the loose mineral fibers (2) are fed. It further comprises a filling device (6) adjoining the feed device (5) and a pressing device (7) adjoining the filling device (6). The latter has an upright pressing chamber (17) which may include a pressing box (20) at its lower end. In the pressing box (20), the fed loose mineral fibers (2) or the resulting fibrous material (34) are compressed into a Fig. 3 pressed bales (3) shown are compressed and compacted.

[0040] The compressed bale (3) can have packaging (4). This can be formed, for example, by parallel strapping bands, as shown. Alternatively, cross-strapping is also possible. The packaging (4) can also comprise one or more packaging layers, in particular a two- or three-part film packaging, a bag, or a cardboard box. This is not shown in the drawings.

[0041] The baler (1) comprises, in its various versions, a press frame (10) for the aforementioned components of the feeding device (5), the filling device (6), and the pressing device (7). A [missing information] can also be attached to the press frame (10). Fig. 1 arranged and possibly multi-part stage (11) for maintenance and operating purposes and for access from in Fig. 1 works shown relating to the aforementioned press components (5,6,7) include. Fig. Figures 2-4 show the baler (1) without the platform (11) and the parts of the press frame (10) for supporting the feed device (5) and the filling device (6). Fig. Figures 2-4 show only the part of the press frame (10) located on the press device (7), e.g., the frame-like part.

[0042] The feeding device (5) receives the mineral fibers (2) supplied from the outside. It can include a separator (12) at the inlet, which, for example, comprises a rotating separator roller with a perforated roller shell, on which the mineral fibers (2) are separated from the supplied gas stream. The gas can be drawn off from the separator roller via a suction device. In another embodiment, the mineral fibers (2) can be supplied from the outside in a different manner, for example, via a conveyor belt, a chute, or the like.

[0043] The fed mineral fibers (2) are received at one end of a feed shaft (13) of the feeding device (5), which may be arranged horizontally, and transported further. A conveying device (14), such as a circulating conveyor belt, may be arranged at the bottom of the shaft for this purpose. The fiber material formed from the mineral fibers (2) may also be weighed in the feed shaft (13) or at another suitable location. The feed shaft (13) may also be inclined or vertical, with the fed mineral fibers (2) falling or sliding downwards due to their own weight.

[0044] The feed chute (13) is connected at its other end to a preferably horizontally arranged filling chute (15) of the filling device (5), wherein the mineral fibers (2) are fed from the feed chute (13), for example, through an opening in the ceiling of the filling chute (15). The filled fibers are preferably collected in batches at the bottom of the filling chute (15). The baling press (1) can also include a metering device (not shown) which transfers the fibers in batches from the feed device (5) to the filling device (6).

[0045] In the filling shaft (15) there is a Fig. The slide (16) shown in Figure 3 is arranged to be displaceable and reversible in the longitudinal direction of the shaft. The slide (16) has an upright slide wall which displaces the filled mineral fibers (2) or the fiber material (34) formed therefrom in the direction of the press shaft (17). The slide (16) has a controllable drive, e.g., a friction wheel drive, and suitable guide means for the movement of the slide plate. Fig. 3 The direction of movement of the mineral fibers (2) in the shafts (13,15) is indicated by arrows.

[0046] The filling shaft (15) opens laterally onto the upright press shaft (17). The opening can be opened and closed as needed by means of a controllable closure, e.g. a vertically sliding closure plate or the like.

[0047] The baler (1) has a pre-compression section (18) and a subsequent final compression section (19) in which the loose mineral fibers (2) are compressed from different directions oriented transversely to each other. The pre-compression section (18) can be located in or on the filling device (6) and / or on the upper part of the upright press chamber (17). The slide (16) can, for example, move the mineral fibers (2), preferably filled in batches, into the upper part of the press chamber (17) and press them against the opposite wall of the press chamber and compress them. Pre-compression of the loose mineral fibers (2) can also take place within the filling chute (15) at the aforementioned closure at the opening to the press chamber (17). The pre-compression can be carried out with one or more strokes of the reversibly movable slide (16). During the slide movement, the opening to the feed device (5) can be closed.A weighing device, not shown, can also be arranged at the bottom of the filling shaft (15).

[0048] The upright press chamber (17) has the aforementioned press box (20) in its lower section. This can be arranged in a stationary or variable configuration. It can be opened or removed to remove the produced bale (3) and, if necessary, also to attach the packaging (4). For opening purposes, the wall of the press box (20) can be removed, e.g., to form one or more doors or hinged wall sections. In another embodiment, the press box (20) can be removed from the bale (3) and, for example, lifted off. The bale (3) is compressed in the press box (20) between upper and lower press rams (21, 22) and, if necessary, held in place for the attachment of packaging (4).

[0049] The press rams (21, 22) are movable relative to each other. In the illustrated embodiment, the lower press ram (22) is stationary, and the upper press ram (21) is movable and connected to a single press ram drive (24), which moves the press ram (21) reversingly and axially within the upright press shaft (17) and into the press box (20). In another embodiment, the lower press ram (22) can also be moved and driven by a press ram drive (24) not shown.

[0050] Fig. 5 and Fig. Figure 6 shows the arrangement of the press rams (21, 22) in the pressing position within the press box (20). The aforementioned finishing pressing area (19) is preferably located in the lower part of the press shaft (17), particularly within the press box (20). The press box (20) may have one or more retainers (33) at its upper end, which retain the fiber material (34) or mineral fibers (2) that has been filled in and, if applicable, pushed in by the upper press ram (21) within the press box (20).

[0051] How Fig. As illustrated in Figures 1-4, the individual press ram drive (24) comprises at least one upright electromechanical linear drive (25, 26). The baler (1), in particular the pressing device (7), can also be a Fig. 4. Guide device (23) for a movable press ram (21) connected to at least one electromechanical linear drive (25, 26). The guide device (23) can, for example, be located between the upright walls of the press shaft (17) and the side walls of the movable press ram (21). It can also be formed by upright guide rods held on the press frame (10).

[0052] A guide device (23) is preferably arranged if according to Fig. 1-4 only one electric linear drive is present. Fig. Figure 4 also shows, in dashed form, a variant with a second and parallel upright electromechanical linear drive (26). The one or two or more upright electromechanical linear drives (25, 26) move the connected press ram (21) in the axial direction of the press shaft (17) and with a reversing upward and downward movement.

[0053] The one or more electromechanical linear actuators (25, 26) are in Fig. Numbers 1 to 4 and 8 are represented in an abstract way. Fig. Figure 7 shows a schematic representation of an electromechanical linear drive (25, 26), e.g., in the form of a spindle drive. The spindle drive comprises a controllable or adjustable rotating electric motor (27) and a linearly movable transmission element (27') driven by the motor for force and displacement, which is, for example, designed as a spindle drive. Its spindle, e.g., a ball screw (37), is driven by the electric motor (27). The spindle nut (38), which is guided non-rotatably and linearly movable in a drive housing (39), is connected to an output element (28), e.g., a push rod or a push tube, which extends from the drive housing (27") and is provided with a seal (37). Alternatively, the spindle drive can be designed in a different way and move the spindle linearly.

[0054] The abrasive (28) is suitably connected at its free end to the movable press ram (21). The abrasive (28) may have a schematically depicted seal (40) that prevents the entry of loose mineral fibers (2) made of an aggressive material into the interior areas of the electromechanical linear actuator (25, 26).

[0055] The at least one electromechanical linear drive (25, 26) is connected to the press frame (10) via a suitable bearing (29), e.g. a in Fig. The crosshead shown in section 2 is connected on the one hand to the associated movable press ram (21) on the other. The connection to the press ram (21) can, for example, be designed as a fixed bearing and the connection to the press frame (10) as a floating bearing. The bearing design can also be implemented in other ways.

[0056] The baling press (1), in particular the pressing device (7), can in the various variants also have a detection device (31) for the loading of the mineral fibers (2) during pressing with the at least one electromechanical linear drive (25,26).

[0057] One variant of the recording device (31) is in Fig. Figure 7 is shown schematically. It includes, for example, a detection device that detects and measures the electric motor current drawn by the electric motor (27) of the respective linear drive (25, 26). Alternatively or additionally, other detection devices, such as one or more force sensors and / or one or more displacement sensors, may be present, which record the forces and / or compaction paths exerted by the movable press ram (21) on the mineral fibers (2) or the fiber material (34) during pressing.

[0058] The baler (1) can also have one in each of the different versions. Fig. 3 and Fig. The monitoring device (8) shown in section 4 is for the behavior of the mineral fibers (2) within cavities in the baler (1). This can particularly relate to fiber monitoring in the feed chute (13), filling chute (15), and pressing chute (17). The monitoring device (8) can include one or more monitoring means (9). These are preferably optical monitoring means, e.g., those shown in Fig. 3 and Fig. 4 cameras indicated. These can be electronic cameras or other image recording systems along with image analysis. In addition, the surveillance equipment (9) can also include lighting equipment that illuminates the detection and viewing area.

[0059] One or more monitoring devices (9) are arranged, for example, on the roof and / or on the side walls of the feed shaft (13), particularly in the area at the transition to the filling shaft (15). One or more monitoring devices (9) may also be arranged in the filling shaft (15), preferably on the roof and / or on the side walls. A monitoring device (9) may be located, in particular, near the shaft opening on the upright press shaft (17) and may observe any pre-compaction of the mineral fibers (2) with the slide gate (16).

[0060] According to Fig. 4. A monitoring device (9) can, for example, also be arranged at the upper end of the upright press shaft (17). It can be located above the movable press ram (21). This allows, for example, the correct compression of the fibrous material (34) or the mineral fibers (2) located in the press shaft (17) to be observed. It can also be determined whether mineral fibers (2) are accumulating on the upper side of the movable press ram (21). These can be removed, if necessary, by a suitably controlled blowing device or the like.

[0061] The baler (1) can also have one in each of the different versions. Fig. The control unit (30) is schematically represented as a control system to which the various components and drives of the baler (1), in particular the detection device (31) and the monitoring device (8), are connected. The detection device (31) allows the control or regulation of at least one electromechanical linear drive (25, 26) according to the load on the mineral fibers (2) detected by the detection device (31) during compression. In the case of multiple electromechanical linear drives (25, 26), these can be controlled or regulated individually or together. Defects in fiber behavior, e.g., undesirable fiber accumulation or insufficient density or quantity of fiber flow, which are detected by the monitoring device (8), can be remedied by selectively controlling components of the baler (1), e.g., conveying devices, metering devices, etc.

[0062] The at least one electromechanical linear drive (25, 26) develops, for example, an axial force of 70 kN to 100 kN in a single arrangement. In the Fig. In the double arrangement of two electromechanical linear actuators (25, 26) shown in Figure 4, each actuator can develop an axial force of approximately 30 kN. For moving and compacting the loose mineral fibers (2) in the vertical press shaft (17), the one or more electromechanical linear actuators (25, 26) each have a stroke length of, for example, 2 m to 3.5 m, in particular 3.1 m.

[0063] The compression of the loose mineral fibers (2) in the finished pressing area (19) can, for example, take place in two pressing stages (35, 36), which are in Fig. 5 and Fig. 6 are shown. In the first pressing stage (35) of Fig. 5. The fiber material (34) consisting of mineral fibers (2) filled into the press box (20) is compacted to an initial dimension by means of a limited upright pressing stroke of the at least one movable press ram (21). The pressing stroke and the pressing force of the at least one upright electromechanical linear drive (25, 26) can be controlled according to the aforementioned detected load on the fiber material (34).

[0064] The further press stroke to reach the second and in Fig. The second, more highly compacted pressing stage (36) shown in section 6 can be carried out directly afterwards or after an intermediate recovery period for the fiber material (34). In the second pressing stage (36), the fiber material (34) is compacted and compressed to the desired final dimensions of the press bale (3). At the end of the second or final pressing stage (36), the aforementioned packaging of the press bale (3), now compacted and held between the press rams (21, 22), can also take place.

[0065] The fully compressed and, if applicable, packaged bale (3) can then be unloaded and removed from the press box (20) and the baler (1) in a suitable manner. This can be done, for example, with an unloading device (not shown) and a loading fork. This can engage, if necessary, in the strapping grooves (not shown) of the press rams (21, 22), which are provided, for example, for packaging (4) in the form of strapping bands.

[0066] Fig. Figure 8 shows another variant of the baler (1), which comprises several, e.g., two, press boxes (20, 20') and is designed as a two-box baler or carousel baler. In another variant, not shown, the baler (1) can comprise three or more press boxes (20, 20').

[0067] The carousel press of Fig. 8, like the previously described single-box press, features Fig. Figures 1-6 show a feeding device (5), a filling device (6), and a pressing device (7), of which only the filling device (6) and the pressing device (7) are shown. In the second variant, the pressing device (7) also comprises an upright pressing shaft (17) to which the preferably horizontally arranged filling device (6) connects in the manner described above.

[0068] In the version of Fig. 8 The press device (7) comprises several, e.g. two, pairs of movable and stationary press rams (21, 22, 21', 22') and several, e.g. two, press ram drives (24, 24'). The stationary press rams (22, 22') are arranged together on a support (42), which is e.g. designed as a rotary plate and is movable, in particular rotatable, about an upright axis of rotation (41) between a pre-pressing area (18) and a finishing pressing area (19) spatially separated from it.

[0069] The two press boxes (20, 20') are distributed between the two pairs of press rams and are also rotatable about the axis of rotation (41). They can be moved, in particular rotated, from a pre-pressing area (18) located on the press shaft (17) to the separate and spaced finishing press area (19). One press ram drive (24) is located in the pre-pressing area (18) and the other press ram drive (24') is located in the finishing press area (19). The filling of the mineral fibers (2) from the filling device (6) into the press shaft (17) and the preferably pre-compaction of the mineral fibers (2) in the filling shaft (15) and / or in the upper area of ​​the upright press shaft (17) can take place in the manner described above. The press ram drive (24) pushes the filled fiber material downwards in the press shaft (17) into the press box (20) therein with the movable press ram (21).

[0070] Through a rotational movement of the carrier (42), the filled press box (20) then enters the final pressing area (19). Here, the fibrous material (34) or the mineral fibers (2) are fully compressed by the second movable press ram (21') and the second press ram drive (24), forming the press bale (3). This can be done in the manner described above with several, e.g., two, pressing stages (35, 36).

[0071] In the baler (1) of Fig.8. The filling and possible pre-compaction of the mineral fibers (2) or the fibrous material (34) in the pre-compression area (18) and in one press box (20) can take place simultaneously with the final compression of the fibrous material (34) or mineral fibers (2) located in the second press box (20'). For possible packaging and unloading of the finished bale (3), the press box (20') can be raised vertically with a lifting device (not shown) and can be lowered again after unloading the bale (3). In this variant of the baler (1), raising or opening the press box (20) is not necessary in the pre-compression area (18).

[0072] Variations of the embodiments shown and described are possible in various ways within the scope of the claims. In particular, the features of the embodiments described above and their variants can be combined and interchanged in different ways. REFERENCE MARK LIST 1 baler 2 Mineral fiber 3 bales 4 Packaging 5 Feeding device 6 Filling device 7 Pressing device 8 Monitoring device 9 surveillance equipment, camera 10 press frames Stage 11 12 separators 13 Feed shaft 14 funding opportunities 15 Filling chute 16 sliders 17 Press shaft 18 Pre-pressing area 19 Finishing press area 20 press boxes 20' Press box 21 movable press dies 21' movable press die 22 stationary press dies 22' stationary press die 23 Guide system 24 Press ram drive 24' Press ram drive 25 Linear actuator, electric motor, electric cylinder 26 Linear drive 27 Electric motor 27' Transmission means, spindle drive 28 Driven means, push rod 29 Storage 30 Control 31 Recording device 32 Packaging equipment 33 retainers 34 Fiber material 35 Pressing stage I 36 Pressing stage II 37 Spindle, ball screw 38 Spindle nut 39 Drive housings 40 Sealing 41 axis of rotation 42 supports, turntable QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 4 535 537 A

[0002] DE 20 2015 102 730 U1

[0003] DE 296 09 493 U1

[0003] DE 200 14 583 U1

[0003] WO 2024 / 056924 A1

[0004] US 3,643,589 A

[0005] DE 29 42 227 A1

[0006] DE 10 2020 115 748 A1

[0007] DE 10 2019 115 616 A1

[0008]

Claims

[1] Baling press designed for compressing supplied loose mineral fibers (2) into bales (3), characterized by , that the baling press (1) has a feeding device (5), a preferably horizontally arranged filling device (6) and a pressing device (7) with an upright pressing shaft (17) adjoining the filling device (6), with pressing rams (21, 22) therein, with a pressing ram drive (24, 24') and with a pressing box (20, 20') in which the mineral fibers (2) are compressed, wherein the pressing ram drive (24, 24') comprises at least one upright electromechanical linear drive (25, 26). [2] Baler according to claim 1, characterized by , that the baling press (1), in particular the pressing device (7), has a guide device (23) for a movable press ram (21) connected to the at least one electromechanical linear drive (25,26). [3] Baler according to claim 1 or 2, characterized by, that the at least one electromechanical linear drive (25,26) is designed as a spindle drive. [4] Baler according to claim 1, 2 or 3, characterized by , that the press device (7) has a bearing (29) for the at least one electromechanical linear drive (25,26). [5] Baling press according to any one of the preceding claims, characterized by , that the at least one electromechanical linear drive (25,26) is designed to compress the mineral fibers (2) in several, in particular two, pressing stages (35,36), in particular in the press box (20,20'). [6] Baler according to any one of the preceding claims, characterized by , that the baling press (1), in particular the pressing device (7), has a detection device (31) for the loading of the mineral fibers (2) during pressing with the at least one electromechanical linear drive (25,26). [7] Baling press according to any one of the preceding claims, characterized by, that the detection device (31) is arranged on at least one electromechanical linear drive (25,26) and preferably detects the recorded motor current. [8] Baler according to any one of the preceding claims, characterized by , that the at least one electromechanical linear drive (25,26) is controlled or regulated according to the detected load on the mineral fibers (2). [9] Baler according to any one of the preceding claims, characterized by , that the at least one electromechanical linear drive (25,26) has an electric motor (27) and a linearly extendable output element (28) driven by it with a seal against ingress of mineral fibers (2) and preferably for dry running. [10] Baler according to any one of the preceding claims, characterized by , that the at least one electromechanical linear drive (25,26) develops an axial force of 30kN to 100kN. [11] Baling press according to any one of the preceding claims, characterized by , that the at least one electromechanical linear drive (25,26) has a stroke length of 2m to 3.5m. [12] Baler according to any one of the preceding claims, characterized by , that the baling press (1) comprises a pre-pressing area (18) and a finishing pressing area (19) in which the mineral fibers (2) are preferably pressed from different directions oriented transversely to each other. [13] Baler according to any one of the preceding claims, characterized by , that the pre-compression area (18) is located in the filling device (6) and / or at the upper part of the press shaft (17). [14] Baler according to any one of the preceding claims, characterized by , that the finishing press area (19) is located in the area of ​​the press box (20,20'). [15] Baler according to any one of the preceding claims, characterized by, that the baler (1) comprises a single press box (20) or several, in particular two, press boxes (20,20') movable between a pre-compression area (18) and a final compression area (19). [16] Baler according to any one of the preceding claims, characterized by , that the filling device (6) has a filling chute (15) connected to the feeding device (5) and to the press chute (17) with a slide (16) arranged therein, which is driven in a controlled reversing manner and which moves the filled mineral fibers (2) into the subsequent press chute (17) and, if necessary, presses them together. [17] Baling press according to any one of the preceding claims, characterized by , that the feed device (5) has a feed shaft (13) connected to the filling device (6) and preferably a separator (12) therein for mineral fibers (2) supplied from the outside in a gas stream. [18] Baler according to any one of the preceding claims, characterized by , that the baler (1) includes a monitoring device (8) for the mineral fiber behavior within the cavities in the baler (1), in particular in the shafts (13,15,17). [19] Baler according to any one of the preceding claims, characterized by that the monitoring device (8) includes one or more optical monitoring means (9), in particular cameras. [20] Baler according to any one of the preceding claims, characterized by that the baler (1) has a packaging device (32) for the baled bales (3). [21] Baler according to any one of the preceding claims, characterized by , that the press box (20,20') has retainers (33) for the absorbed mineral fibers (2) and is designed to be opened and / or removed for the removal of the press bale (3).

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