EP1619128A1 - Device for compressing and packaging - Google Patents

Abstract

The pressing and packing device includes a means of closing the spatial clearance (A) between the pressing device and the packing device, and/or the clearance (B) within the pressing device, at least temporarily, particularly during the transfer of the pressed fiber material body or pressed body from the pressing device to the packing device.

Description

The present invention relates to a device for pressing at least one fiber material body with a low density, with a pressing device and with a downstream of the pressing device packaging device.

Fiber materials with low density are found in the construction sector, especially with regard to insulating materials, or in the hygiene sector.

In view of increasing transport and storage costs, fiber material bodies made of loose fibers are not delivered in this form, but are again densely compacted and packaged. It can also be several fiber material body, for example. In the form of a plate stack, pressed and then wrapped. Both individual fiber material body and fiber material packages - wrapped or not wrapped - are in turn transferred to an intermediate, in which case either several possibly already individually packaged individual bodies, such as fiber rolls, or several packs, such as plate stacks are compressed to form a single compact, which after Pressing process, for example, is packaged in a foil bag or banderouliert or strapped.

When fibrous material bodies are compacted with a low density and the resulting compact leaves the forced area between the press plates, the compact always has the tendency to expand. On the way to the packaging device, the compact can be damaged due to its expanding behavior when it encounters resistances such as projections, undercuts, cavities. Especially with regard to prepacked fiber material body, of which several are pressed into a compact, the damage to the prepackaging is problematic. The prepackaging material or even the fiber material itself may be left hanging on resistors when leaving the pressing device within this or on the way to the packaging device or expand in columns and then torn during the advancing movement or otherwise damaged. The user would then no longer receive a quality product.

EP 0 424 718 A1 discloses a device for packaging a good, in particular diapers in a compressed state. Here, voluminous fiber material bodies, specifically diapers, are pressed into a stack in a pressing device and from there into a box and from there into a packaging bag. Of interest in view of the present invention, the transitions of the material to be pressed from the pressing device to the box and from there into the packaging bag. The document in question discloses with regard to the transition from the overroller to the box a gap at which expansion can take place and surface damage can occur. The transition of the material to be pressed from the box into the packaging bag takes place in that the entire box is inserted into the bag and then the slider pushes the goods with the bag to a conveyor belt. The transition of the compact from the pressing device is problematic in the manner described above. There may be disturbances on the fiber material of the compact and / or on its packaging. Although the transition of the box into the bag secures the way to the packaging device, but increases the cost of the device, since a separate means of transport must be provided in the form of a box to get to the packaging device.

DE 2 322878 A1 shows a device for packaging squeezable goods in sheet-like wrapping material. A conveyor pushes the goods in a holding device, so that the product is enclosed above, below and from the front of a U-shaped packaging loop. The conveyor consists of converging conveyor belts. Between the conveyor and the holding device, a welding and separating device is arranged, with jaws which move transversely to the direction of movement of the goods. At the end of the conveyor belt, the wrapping material is fed. Between the conveyor, which compresses the material due to the convergent training and the holding device, in which the compacted material to be transferred together with impact material, there are objects and thus distances. It is already disclosed to use guide plates that are intended to counteract the stretching of the material. However, these guide plates by no means bridge the distance between guide and holding device. On the contrary, the insertion of new impact material is made more difficult by the guide plates. Therefore, the product is pushed together with wrapping material in the holding device. The guide plates may lack Distance bridging does not prevent stretching at the transition to the jaws of the welding and separating device and possibly also damage to the goods. The distance between the welding and separating device and the downstream Förderbändem remains unbridged and is therefore problematic.

From WO 02/10021 A2 a device for packing a compressed material web stack is known. Again, located next to the compression device, a packaging device between which there is a gap. The compression device consists of belt conveyors, as well as the packaging device. Between the compression device and the packaging device extends a film web, which has the purpose to absorb the restoring force.

Based on EP 0 424 718 A1, the object of the invention is to provide a device of the type in question, which is optimized over the prior art and almost completely avoids damage to the compact and / or its pre-packaging and thus to a high level Quality of the compact contributes.

The above object is achieved according to a first alternative of the invention by the features of claim 1. Thereafter, a device of the type in question is configured and further developed such that means for closing the spatial distance between the pressing device and packaging device and / or the distance are provided within the pressing device and that the respective distance at least temporarily, in particular during the application of the compressed fiber material body or of the compact from the pressing device is closed in the packaging device.

First, it has been recognized that quality degradation of the compact is achieved by expanding the compact as it exits the constraining region between the platens and spreading into structural cavities, such as gaps between components of the device. It has also been recognized that during the advancing movement for moving the compact, the compact remains caught in a packaging device and a co-compressed prepackage and / or the fiber material itself is damaged and tears open. According to the invention, spatial distances within the pressing device and closed by suitable means between pressing device and packaging device, so that no expansion of the compact and thus no damage to its surface can be done more. The closing or bridging of the distances is at least temporary, but could also be achieved by a permanent filler, which must meet the requirements of the moving press plates within the pressing device.

According to a particularly preferred embodiment of the first alternative of the device according to the invention, the means for closing the respective spatial distance may comprise at least one transport plate, which bridges the respective distance and passes together with the pressing body from the pressing device into the packaging device. In the frequent application that two opposing press plates belong to the pressing device, each press plate is associated with a transport plate, which participates in the pressing process. In this way, the forced area created during pressing is maintained, right into the packaging device.

Of essential importance for the first alternative of the device according to the invention is that the speed of the compact is the same amount as the speed of the transport plate. Since there is no difference in speed between the transport plate and the compact, surface damage during removal into the packaging device is largely ruled out, the prepackage and / or the fiber material is or are spared, possible electrostatic effects that could impair the packaging are largely avoided. The position of the compact is, while being clamped between the transport plates, calculable and the compact is completely protected between the transport plates, so that it can not lead to a loss of quality.

In terms of design, the press plate could have a guide rail on which a slide arranged on the transport plate can be moved. In order to be able to dispense with guide rails for the carriage within the packaging device, the carriage of the transport plate could be arranged on one side in a region of the transport plate facing away from the packaging device. When the transport plates are extended into the packaging device, the carriage would then cover the area of the pressing plates not leave and the extended in the packaging means areas of the transport plates could slide on plastic sheets within the packaging device with the lowest frictional resistance.

In retraction position or during pressing, the transport plate could be arranged approximately congruent to the press plate, wherein the carriage is then moved relative to the press plate in the direction away from the packaging device area. In the extended position, the transport plate protrudes into the packaging device and thus bridges every distance. The carriage is then moved with respect to the press plate in their pointing to the packaging device area.

As an alternative to the above-described movement-technical variant of the guide rail and slide, other variants come into consideration to produce the translational movement capability of the transport plate. For example, a pin could slide in a groove on the press plate or rollers could roll on the press plate.

So that no damage to the material to be pressed or pressed is caused by the transport plate itself, it could have a fiber material body or pressed body contact surface made of metal with a preferably polished surface. Alternatively, plastic surfaces, composite materials, coated materials, composites come into consideration, which have in common that they have a very low frictional resistance.

In order to keep the weight of the transport plate within limits and still ensure the force required during the pressing process, support means, in particular made of plastic, could be provided, which support the transport plate against the press plate.

With regard to the realization of the extension movement of the transport plates together with the compact to the packaging device and the subsequent retraction of the pressing device could be preceded by a Ausschubeinrichtung, which means for closing the spatial distance between the pressing device and packaging device and / or the spatial distance within the pressing device, in particular the transport plate moves.

For force introduction into the transport plate, the ejection device could act on the end face of the transport plate remote from the packaging device and move it together with the compact to the packaging device.

Of essential importance is the design of the extension device as a telescopic slide, which in addition advantageously the return operation of the transport plate can be made possible in the retracted position. The telescopic slide could have an outer and an inner part, wherein the outer part of the telescopic slide spends the transport plate in the direction of the packaging device in the extended position and the inner part of the telescopic slide spans the transport plate in opposite direction to the packaging device back to the retracted position.

In terms of design, a stop could be provided on the transport plate in the region of the end facing away from the packaging device, on which engages the inner part of the telescopic slide to retrieve the transport plate and to move in the retracted position.

Thus, a gradual, not jerky return operation is realized, the stop could be designed as a profile strip with oblique, expanding towards the packaging device stop surface. A correspondingly appropriate attack surface could have the inner part. The profiled strip could be arranged on the transport plate, facing away from the packaging device, in the region of the carriage, and preferably at the same time enlarge the side facing away from the packaging device end face of the transport plate for improved attack of the outer part of the telescopic slide.

The inner part of the telescopic slide is in terms of its dual function, namely Rückho! En the transport plate in the retracted position on the one hand and pushing the compact into the packaging on the other hand, arranged advantageously above the outer part, so as to occupy the best position for introducing force into the compact can. To push the compact into the packaging is preferably adapted to the dimensions of the compact ejector plate provided which allows a uniform application of force to the compact and does not affect the quality. According to another, related to the Ausschubeinrichtung embodiment could also be provided two superposed ejector, which also have the same width.

According to a particularly preferred embodiment of the first alternative of the device according to the invention the Ausschubeinrichtung could be driven by servo technology. With regard to the rectified movements of the outer part and inner part of the telescopic slide, it is advantageous if they can be brought about independently of each other. Thus, the transport plate could, for example, be spent on the outer part in the extended position, while the inner part only then pushes the compact from the packaging device into the package and thereby, is moved independently of the outer part. During the return movement to reach the retracted position, the movement of the outer part could be coupled to that of the inner part. For positioning the Ausschubeinrichtung and other components of the device according to the invention also alternative drive and control means could be provided which operate electrically, hydraulically, pneumatically or mechanically.

A further embodiment of the first alternative of the device according to the invention provides that the packaging device comprises a preferably cross-sectionally variable funnel and a packaging material feed with a film, a banderole or a bag, a net or the like. By means of a servomotor, the packaging material feed could be driven so that the film, band, the bag or the net or the like. Are adapted to the dimensions of the compact and have the correct voltage. In addition, an exact projection of the film, banderole can be adjusted via the servo drive, if it is desired that the end face of the compact should also be at least partially covered with packaging material.

If the pressing body is pushed out of the hopper of the packaging device by the inner part and / or also the upper part of the telescopic slide, expansion of the pressed body threatens again and thus the risk of damage to the outer edge of the Funnel. The pre-packaging could break, the fiber material could be severed. Therefore, an advantageous development of the first alternative of the device according to the invention provides to associate the packaging device at least one holding device, which keeps the compact in shape when leaving the packaging device and prevents expansion or a reshaping due to the elastic behavior. The holding device could be approached or pivoted externally to the packaging device, but could also be mounted on the outer surface of the pressing device. In any case, it becomes effective where the compact to be packaged leaves the pressing device or its funnel and where, finally, a fixation of the compact held by the holding device takes place by the packaging material to be scrapped. The holding device could consist of at least two rollers which extend vertically over the height dimension of the compact and counteract a lateral expansion. Also possible are other rollers which extend horizontally, parallel to the cover and base of the compact and counteract expansion in the vertical direction. The use of rollers is advantageous because they oppose the advancing movement of the compact very little resistance. Another, related to the formation of the holding device embodiment could provide instead of the above roles also circulating belts.

In a particularly preferred embodiment of the first alternative of the device according to the invention, a control device is used, which synchronizes at least the movements of the Ausschubeinrichtung and the packaging material supply. This is advantageous in view of the fact that with progressive advance of the compact from the hopper of the packaging device, the packaging material must be supplied in a manner adapted to the exiting compact - in a specific dimension, in a specific tension, etc.

The control device could additionally synchronize movements of further components of the device, wherein, for example, the movements of the holding device with regard to the pivoting away and to call, which are in connection with the exit of the compact from the hopper of the packaging device. Furthermore, the cross-sectional change of the funnel of the packaging device and / or the lowering of a cover plate of the pressing device and / or the height adjustment of the Transport plate to be synchronized. The cross-sectional change of the hopper, the height adjustment of the cover plate and the height adjustment of the transport plate relate to movements that are like the Ausschubeinrichtung and the packaging material supply dependent on the dimensions of the compact. The computer-controlled drives for realizing the coordinated movements of the individual components of the device according to the invention could be driven in accordance with a press-body-specific file which supplies the data for the positioning of each component.

The application of the first alternative of the device according to the invention to pressed material is particularly advantageous, the fiber material body to be pressed or a plurality of fiber material bodies to be pressed having or having a prepackage in the form of an envelope of foil, paper, mesh or the like. Especially with pre-packed pressed material there is a risk that the co-compressed pre-packaging at edges, projections, cracks breaks. The fiber material body to be pressed could be in the form of a fiberboard, a fiberboard stack or a fiber roll or a plurality of fiber material rolls and, for example, be used as insulating material in apparatus, vehicle and house construction.

As already described, the transport plates are in direct contact with the compact during pressing. After the press plates and the transport plates have moved together and the desired compression thickness of the compact has been reached, the compact is transported by means of the transport plates and the ejection device from the press device into the hopper of the packaging device. Preferably, the transport plates remain in their contracted position or are moved apart only slightly so that the compact does not deform or as little as possible to the completion of the package. In theory, the packaging material or even the fiber material of a non-prepacked compact could theoretically get stuck on the transport plates, in particular with regard to already enveloped compacts. So that this eventuality is taken into account and a replacement of the compact from the transport plates can still be done easily, two alternative structural measures could be made to the transport plates or at least on a transport plate.

A structural measure could be to provide a circulating belt on the transport plate. The band could rotate on the transport plate in the transverse direction, with a running direction parallel to the ground and with an orientation directed towards the packaging device or its funnel. The circulating belt could not only cause the detachment of the possibly enveloped compact from the transport plates, but also the transport out of the hopper. In this respect, the Ausschiebefunktion of the inner part of the telescopic slide would be optional in such a measure. Also, in the application of a rotating belt on the transport plates, the inner part of the Ausschubeinrichtung could be in a different design, which is limited solely to the return function. The each associated with a transport plate circulating belts could be controlled coordinated. It could be a speed adjustment corresponding to the surface of the transported body. In addition, the surface of the belt could be adapted to the compact.

Alternatively, or in addition to the circulating belt, the transport plate could be provided in the contact area to the pressing body with air passages can be provided on the pressing body contact surface facing the pressing body. By the inflowing air in each case an air cushion between the compact and the transport plates is formed, thus facilitating the detachment of the compact. When pressurized through openings are used in connection with a circulating belt, the air cushion counteracts a concern of the band on the transport plate. The present due to the openings at least partially as a hollow body transport plate still has a sufficiently high stability for performing the pressing operation. The passage openings could be distributed homogeneously over the entire transport plate surface or even recognized problem areas. The connections for a compressor could be assigned to a part of the transport plate facing away from the contact area to the pressing body.

The above object is achieved according to a second alternative of the invention by the features of claim 25. Thereafter, a device of the type in question is configured and further developed such that the packaging device at least a holding device is associated, which holds the compact in leaving the packaging device in the form and prevents expansion of the compact.

Regardless of whether a known device is provided with a clearance gap with regard to the gap between the press plate and the pressing device and / or pressing device and packaging device, it has been recognized that when the pressed article is pushed out of the packaging device again expansion of the compact and thus the risk of damaging the casing and / or of the compact, for example, threatens at the outer edge of the hopper of the packaging device. According to the invention it has been recognized that damage to the compact and / or its pre-packaging can be almost completely avoided if the packaging device is associated with a holding device.

With regard to constructive embodiments of the holding device, reference is made to the description of the first alternative erfindungsgernäßen device. It is essential that the holding device can be assigned separately as an accessory part of existing devices without gap or distance bridging means.

Fig. 1

in schematischer Darstellung, teilweise geschnitten, eine Aufsicht auf die erfindungsgemäße Vorrichtung, in Einfahrstellung der Transportplatten,

Fig. 2

in schematischer Darstellung, ein vergrößertes Detail des Gegenstandes aus Fig. 1,

Fig. 3

in schematischer Darstellung, teilweise geschnitten, den Gegenstand aus Fig. 1, während des Ausfahrens der Transportplatten,

Fig. 4

in schematischer Darstellung, den Gegenstand aus Fig. 3, in vollständig ausgeschobener Stellung der Transportplatten,

Fig. 5

in schematischer Darstellung, eine Aufsicht auf den Gegenstand aus Fig. 3, während des Ausschiebens des Presskörpers aus dem Trichter durch den Innenteil des Teleskopschiebers,

Fig. 6

in schematischer Darstellung, eine Aufsicht auf den Gegenstand aus Fig. 3, während des Zurückziehens der Transportplatten zum Erreichen der Einfahrstellung,

Fig. 7

in schematischer Darstellung, vergrößert, teilweise geschnitten, eine Vorderansicht des Gegenstandes aus Fig. 1, mit in den Trichter der Verpackungseinrichtung ausgeschobenen Transportplatten und Presskörper,

Fig. 8

in schematischer Darstellung, teilweise geschnitten, eine Seitenansicht des Gegenstandes aus Fig. 1 mit in den Trichter der Verpackungseinrichtung ausgeschobenen Transportplatten, erweitert um die Verpackungsmaterialzuführung,

Fig. 9

in schematischer Darstellung, teilweise geschnitten, eine Vorderansicht des Gegenstandes aus Fig. 1 mit Halteeinrichtung,

Fig. 10

in schematischer Darstellung, teilweise geschnitten, den Gegenstand aus Fig. 1, mit Halteeinrichtung und

Fig. 11

in schematischer Darstellung, eine Prinzipskizze der erfindungsgemäßen Vorrichtung unter steuertechnischem Aspekt.

There are now various possibilities for designing and developing the teaching of the present invention in an advantageous manner. For this purpose, on the one hand to the claims subordinate to claim 1, on the other hand, to refer to the following explanation of an embodiment together with embodiments of the invention with reference to the drawings. In conjunction with the explanation of the cited embodiment of the invention with reference to the drawings, generally preferred embodiments and developments of the teaching are explained. In the drawing show

Fig. 1

in a schematic representation, partially in section, a plan view of the device according to the invention, in the retracted position of the transport plates,

Fig. 2

in a schematic representation, an enlarged detail of the article of FIG. 1,

Fig. 3

in a schematic representation, partially in section, the article of FIG. 1, during the extension of the transport plates,

Fig. 4

in a schematic representation, the article of FIG. 3, in the fully extended position of the transport plates,

Fig. 5

3, during the pushing out of the compact from the funnel through the inner part of the telescopic slide, FIG.

Fig. 6

in a schematic representation, a plan view of the article of FIG. 3, during the retraction of the transport plates to reach the retracted position,

Fig. 7

1 in a schematic representation, enlarged, partly in section, with transport plates and compacts pushed out into the hopper of the packaging device, FIG.

Fig. 8

1 in a schematic representation, partially in section, a side view of the article from FIG. 1 with transport plates pushed out into the hopper of the packaging device, expanded by the packaging material feed,

Fig. 9

in a schematic representation, partially in section, a front view of the article of Figure 1 with holding device,

Fig. 10

in a schematic representation, partially in section, the article of FIG. 1, with holding device and

Fig. 11

in a schematic representation, a schematic diagram of the device according to the invention under tax technical aspect.

The figures show a device for pressing at least one fibrous material body with a low density, with a pressing device 1 and with a packaging device 2 arranged downstream of the pressing device 1.

According to the first alternative of the device according to the invention means for closing 3 of the spatial distance A between the pressing device 1 and packaging device 2 and the distance B are provided within the pressing device 1, the distance A, B during the application of the compressed fiber material body or of the compact 4 from Cover the pressing device 1 in the packaging device 2, as shown in Figs. 3, 4, 5, 6 and 11.

In Fig. 2, the spatial distances A, B can be seen particularly well. Distance A relates to the gap between the hopper 5 of the packaging device 2 and the outer wall 6 of the pressing device 1, wherein this is fixed by means of flange 37 on the outer wall 6. Distance B relates to the gap between the end face of the pressing plate 7 and the inner wall 8 of the pressing device 1. The means 3 for closing the spatial distances A, B comprise two transport plates 9, which bridge the distances A, B and with which the compact 4 together the pressing device 1 enters the packaging device 2.

There are two opposite pressing plates 7 are provided in the present embodiment, each of which a transport plate 9 is assigned. The two transport plates 9 participate in the pressing process. The press body 4 is held in shape by the transport plates 9 and the speed of the press body 4 is equal to the speed of the transport plates 9. Since the speed difference is zero, no relative speed occurs and the risk of surface damage during transport from the pressing device are largely excluded ,

The press plates 7 each have a guide rail, not shown here, which cooperates with the respective carriage 10 of the transport plates 9. The carriage 10 is movable on the guide rail of the press plate 7 and is arranged on one side in a direction away from the packaging device 2 region of the transport plate 7.

1, 2 and 12 show that the transport plates 9 is arranged in the retracted position or during the pressing in approximately congruent to the press plates 7, wherein the carriage 10 then moved relative to the press plates 7 in the direction away from the packaging device 2 area is. The absolute zero position of the transport plates 9 is not shown in the figures. In the absolute zero position, the carriage 10 rests with its front side 11 facing away from the packaging device 2 against the inner wall 8 of the pressing device 1, which is further away from the packaging device 2.

In FIGS. 3 to 6, 7, 10 and 11 it is shown that the transport plates 9 are extendable into the hopper 5 of the packaging device 2, protrude into the latter and cover the distances A, B in the process. In Fig. 3 are the transport plates 9 with the clamped between them press body 4 on the way to the maximum extension position. The carriage 10 of the transport plates 9 then passes with respect to the pressing plates 7 always in their direction to the packaging device 2 area. 4, 5 and 11, the maximum extended position is shown, wherein the transport plates 9 extend to the free end of the hopper 5 and flush with this.

The transport plates 9 each have a pressed body contact surface 12 made of metal with a polished surface in order to keep the friction as low as possible when the compact enters the transport plate area in relative movement to the transport plates and is pushed out into the packaging material.

The transport plates 9 are not only on the carriage 10 with the press plates 7 in contact. Because of the schematic representation of the embodiment of the device according to the invention described here, an explanation of supporting devices which support the transport plate 9 against the pressing plate 7 has been dispensed with. The support means are made of plastic, to load the press plates with only light weight.

With a 13 Ausschubeinrichtung is referred to, which is hineinverfahren in the press device 1, after the pressing operation, the transport plates 9, between which the pressing body 4 sits, from the pressing device 1 to the packaging 2 deploy and thereby cover the two spatial distances A and B. , For example. from Fig. 3 It can be seen that the Ausschubeinrichtung 13 engages the side facing away from the packaging device 2 end faces 14 of the transport plates 9 to spend this together with the compact 4 to the packaging device 2.

The Ausschubeinrichtung 13 in the form of a telescopic slide 15 is formed, wherein the outer part 16 of the telescopic slide 15, the transport plates 9 spends in the direction of the packaging device 2. The inner part 17 of the telescopic slide 15 spends the transport plates 9 in opposite direction to the packaging device 2, brings them quasi back to the retracted position. The retraction of the telescopic slide 15 is shown in Fig. 6. In this case, the inner part 17 of the telescopic slide 15 engages a stop 18 of the respective transport plate 9 in one of the regions facing away from the packaging device 2. The stop 18 is formed as a profile strip with oblique, towards the packaging device 2 towards expanding stop surface 19 which is arranged on the transport plate 9 and at the same time the side facing away from the packaging device 2 end face 14 of the transport plate 9 increases.

From FIGS. 8, 9 it follows that the inner part 17 of the telescopic slide 15 is arranged above the outer part 16 and has a discharge plate 20 adapted to the dimensions of the pressed body 4. At 21, the bearings for the Ausschubeinrichtung 13 and for the outer and inner part 16, 17 of the telescopic slide are marked, which are arranged on a base 22. Furthermore, a cover plate 23 is shown in Figs. 8, 9, which is arranged in the pressing device 1 - shown here without front pressing plate 7 - and holds the pressed body 4 during pressing from above in the form. From Fig. 8 is still an unspecified conveyor belt can be seen, with which the packed compact 4 is removed.

The Ausschubeinrichtung 13 is driven by servo technology and the movements of the outer part 16 and the inner part 17 of the telescopic slide 15 can be made independently. Thus, the ejection movement of the inner part 17 shown in FIGS. 4 and 5 for pushing out the pressed body 4 from the hopper 5 in the direction of the arrow C is independent of the movement of the outer part 16 of the telescopic slide. For this, outer and inner parts 16, 17 are coupled together in the direction of the arrow D in the return movement shown in FIG. Also, the feed movement of external, shown in Fig. 3 and inner part 16, 17 according to arrow E, wherein transport plates 9 and 4 press bodies are pushed out together, are coupled together.

From Fig. 7 it is clear that the funnel 5 of the packaging device 2 has a cross-sectional variable split design and according to arrow F in height - can be adjusted according to the size of the compact 4 -. The packaging device 2 also comprises a packaging material feed 24, which is shown in FIGS. 1, 7, 8, 10, 11 and 12 and comprises tapes which are not described in greater detail, the foil 25 - cf. Fig. 1, 11 - feed and push over the emerging from the hopper 5 pressing body 4. The packaging material feed 24 can be driven to adapt to the pressed body 4, setting a specific foil tension and for setting an exact projection of the foil via servo technology illustrated here by a servomotor 26. On the inner surface of the funnel 5 plastic rails 36 are provided which reduce the friction of the transport plates 9.

9 to 11 show that the packaging device 2 are associated with two holding devices 27 according to the second alternative of the device according to the invention, which keep the pressed body 4 in shape on leaving the funnel 5 and prevent expansion of the compact 4. The holding devices 27 are in accordance with the arrow G to the packaging device 2 approachable and removable and are available as vertical rollers with horizontal direction of rotation, wherein the height of the rollers are tuned to the height dimension of the compact 4. The holding devices 27 can also be assigned to other packaging devices. The embodiment described here combines both alternatives of the invention.

All movements of the individual components of the device according to the invention are synchronized via a control device 28 shown schematically in FIG. 11. The control operations depend in a purely schematically indicated manner on the drive 29 for the holding devices 27, on the servo drive 30 for film loading with respect to the packaging material supply 24, the drive 31 for cross-section adjustment of the hopper 5, the drive 32 for height adjustment of the transport plates 9 on the drive 33 for height adjustment of the cover plate 23 shown in Fig. 8, on the servo Drive 34 for the outer part 16 of the telescopic slide 15 and the servo drive 35 for the inner part 17 of the telescopic slide 15.

In the present embodiment, a plurality of fiber material body are pressed to the pressing body 4, which already have a prepackage in the form of a wrapping of foil.

With regard to further features, not shown in the figures, reference is made to the general part of the description.

Finally, it should be noted that the teaching of the invention is not limited to the embodiment discussed above. Rather, the most diverse structural embodiments of the means for closing distances, the transport plate guide, various types of control are possible. Also, other types of bumps, gaps, distances can be covered, resulting in other connection situations of other components. In this case, in particular, the cover plate should be mentioned within the pressing device, which may allow unwanted expansion. In this respect, the means described here primarily as two opposite vertical transport plates for closing distances could also be used in further planes, so that they hold the compact in all directions. With regard to the holding device according to the second alternative of the device according to the invention also several structural alternatives are possible here - in the form of rollers, belts, plates.

LIST OF REFERENCE NUMBERS

1 pressing device 23 cover plate 2 packaging device 24 packaging material feed 3 means for closing distances 25 foil 4 compacts 26 servo drive 5 funnels 27 holding device 6 outer wall of 1 28 control device 7 press plate 29 drive for 27 8 inside wall of 1 30 servo drive for 24 9 transport plate 31 to 35 diverse drives - schematic 10 sleds 36 plastic rails 11 front side of 10 37 flange for 5 12 compact contact surface 13 extension device A distance between 1 and 2 14 front side of 9 B distance between 7 and 8 15 telescopic slides C extension direction of 4 16 outer part D Return direction - 13, 15, 16, 17 17 inner part E movement direction 9, 4 18 stop F Cross-section change 5 19 stop surface G movement direction 27 20 ejector plate 21 bearings for 13 22 substructure

Claims (25)

Device for pressing at least one fiber material body with a low density, with a pressing device (1) and with a packaging device (2) located downstream of the pressing device (1),
characterized,
in that means for closing (3) the spatial distance (A) between the pressing device (1) and the packaging device (2) and / or the distance (B) are provided within the pressing device (1) and that the distance (A) and / or the Distance (B) at least temporarily, in particular during the discharge of the compressed fiber material body or of the pressed body (4) from the pressing device (1) in the packaging device (2) is closed. Apparatus according to claim 1, characterized in that the means for closing (3) the spatial distance (A) and / or the spatial distance (B) comprise at least one transport plate (9), which bridges the distance (A, B) and with of the pressing body (4) passes together from the pressing device (1) in the packaging device (2). Apparatus according to claim 2, characterized in that the speed of the compact (4) on the way into the packaging device (2) is equal to the speed of the transport plate (9). Apparatus according to claim 2 or 3, characterized in that in two opposite pressing plates (7) of a pressing device (1) of each pressing plate (7) is associated with a transport plate (9). Device according to one of claims 2 to 4, characterized in that the transport plate (9) participates in the pressing process. Apparatus according to claim 4 or 5, characterized in that the pressing plate (7) has a guide rail and that the transport plate (9) has a carriage (10) which is movable on the guide rail of the pressing plate (7). Apparatus according to claim 6, characterized in that the carriage (10) on one side, in a direction away from the packaging device (2) region of the transport plate (9) is arranged. Device according to one of claims 4 to 7, characterized in that the transport plate (9) in Einfahrstellung or during pressing is approximately congruent to the press plate (7), wherein the carriage (10) then based on the press plate (7) in which of the packaging device (2) pioneering area is moved. Device according to one of claims 4 to 8, characterized in that the transport plate (9) in the extended position in the packaging device (2) protrudes and so bridges the distance (A, B), wherein the carriage (10) then based on the press plate ( 7) in which the packaging device (2) indicative area is moved. Device according to one of claims 2 to 9, characterized in that the transport plate (9) has a pressed body contact surface (12) made of metal with a preferably polished surface. Device according to one of claims 2 to 10, characterized in that support means, in particular of plastic, are provided, which support the transport plate against the press plate. Device according to one of claims 1 to 11, characterized in that the pressing device (1) is preceded by a Ausschubeinrichtung (13) having the means for closing (3) the spatial distance (A) between the pressing device (1) and packaging device (2). and / or the spatial distance (B) within the pressing device (1), in particular the transport plate (9), after the pressing process with the compact (4) from the pressing device (1) in the packaging device (2) spends. Apparatus according to claim 12, characterized in that the Ausschubeinrichtung (13) on the side facing away from the packaging device (2) end face (14) of the transport plate (9) engages to spend this together with the pressing body (4) to the packaging device (2) , Apparatus according to claim 12 or 13, characterized in that the Ausschubeinrichtung (16) in the form of a telescopic slide (15) is formed, wherein the outer part (16) of the telescopic slide (15) the transport plate (9) in the direction of the packaging device (2) spends and the inner part (17) of the telescopic slide (15) spends the transport plate (9) in the opposite direction to the packaging device (2). Apparatus according to claim 14, characterized in that the inner part (17) of the telescopic slide (15) on a stop (18) of the transport plate (9) engages in order to move back the transport plate (9) to the retracted position. Apparatus according to claim 15, characterized in that the stop (18) is designed as a profile strip with inclined, to the packaging device (2) towards expanding stop surface (19) which is arranged on the press-body contact surface (12) of the transport plate (9) and preferably at the same time the end face (14) of the transport plate (9) facing away from the packaging device (2) increases, Device according to one of claims 14 to 16, characterized in that the inner part (17) of the Teieskopschiebers (15) above the outer part (16) is arranged and preferably to the dimensions of the pressed body (4) adapted Ausschubplatte (20). Device according to one of claims 12 to 17, characterized in that the Ausschubeinrichtung (13) is driven by servo technology and that the movements of the outer part (16) and the inner part (17) of the telescopic slide (15) are independently brought about. Device according to one of claims 1 to 18, characterized in that the packaging device (2) comprises a preferably cross-section variable hopper (5) and a packaging material supply (24) with a film (25), a banderole or a bag, a net or the like , which can be driven via servo technology for adaptation to the compact (4), for tensioning and for setting an exact projection of the film (25), band, etc. Device according to one of claims 1 to 19, characterized in that the packaging device (2) at least one holding device (27) is assigned, which holds the pressed body (4) when leaving the packaging device (2) in shape and an expansion of the compact (2 ). Apparatus as claimed in any one of claims 18 to 20, that a control device (28) is provided which controls the movements of the ejector device (13) and the packaging material feed (24) and / or the movements of the holding means (27) and / or the packaging device (2) and / or a cover plate (23) of the pressing device (1) and / or the height adjustment of the transport plate (9) synchronized. Device according to one of claims 1 to 21, characterized in that the fiber material body to be pressed or more to be pressed fiber material body has a prepackage in the form of an envelope of foil, paper, mesh or the like. Device according to one of claims 1 to 22, characterized in that the transport plate has at least one circulating belt for improved detachment of the compact from the transport plate. Device according to one of claims 1 to 23, characterized in that the transport plate for improved detachment of the compact with - in particular druckluftbeaufschlagbaren - passage openings on the pressed material - or pressed body contact layer is provided. Device for pressing at least one fiber material body with a low density, with a pressing device (1) and with a packaging device (2) located downstream of the pressing device (1),
characterized,
in that at least one holding device (27) can be assigned to the packaging device (2), which keeps the pressed body (4) in shape when leaving the packaging device (2) and prevents expansion of the compact (4).

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