EP0614840B1 - Vibrating table - Google Patents

Vibrating table Download PDF

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Publication number
EP0614840B1
EP0614840B1 EP94102270A EP94102270A EP0614840B1 EP 0614840 B1 EP0614840 B1 EP 0614840B1 EP 94102270 A EP94102270 A EP 94102270A EP 94102270 A EP94102270 A EP 94102270A EP 0614840 B1 EP0614840 B1 EP 0614840B1
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EP
European Patent Office
Prior art keywords
stop
table according
vibrating table
plate
covering plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94102270A
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German (de)
French (fr)
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EP0614840A1 (en
Inventor
Wolfgang Mohr
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Individual
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Individual
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00Pile receivers
    • B65H31/34Apparatus for squaring-up piled articles
    • B65H31/40Separate receivers, troughs, and like apparatus for knocking-up completed piles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20Location in space
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/17Nature of material
    • B65H2701/176Cardboard
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00Material or article handling
    • Y10S414/10Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/12Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including means pressing against top or end of group

Definitions

  • the invention relates to a vibrating table for vibrating material present in sheet layers, with at least two side stops for the material assigned to adjacent sides of a support table, and to a portal frame which can be moved in the plane of the support table, the support table which can be vibrated from a horizontal position is tiltable in the direction of the two stops.
  • the support table With vibrating tables, there is the option of placing the support table in Tilt direction of the side stops, the purpose of aligning the individual sheets lying on the support table with the edges of the stops.
  • the sheet material is lifted before shaking, especially in a separate device.
  • the air is spread out after clamping the material by means of a clamping element by means of an air spreading device which can be moved away from the clamping point to the opposite edge of the sheet material stack.
  • the stack thus presents itself as a compact block after venting and can thus be fed to a subsequent cutting station, for example.
  • the goods are usually shaken by causing the inclined support table to vibrate, and the air is usually spread out by a roller which can be lowered onto the goods and is rolled over the goods, thus squeezing the air out of the stack.
  • a vibrating table of the type mentioned is known for example from German utility model 90 04 711. Since only the two stops hold the material to be shaken in the plane of the support table, the support table can only be tilted from the horizontal position by a certain angle. A relatively small angle of inclination, however, means that the individual sheet layers only lie against the stops with a correspondingly long shaking time and that the goods are thus aligned precisely. This effect is then adversely affected if the material to be shaken has a relatively rough surface.
  • the movable portal frame is used to hold air squeezing rollers that can be lowered and raised by means of pneumatic drives.
  • a ventilation device is not integrated in the vibrating table.
  • the material to be vibrated is completely enclosed at least on one side, the air outlet side, so that when the material is vibrated with the aid of the blown air, the vibrating result can be achieved in a short time with minimal air throughput and thus low energy consumption can.
  • the goods to be shaken are covered at the bottom by the support table and at the top by the top cover plate, the name "cover plate” being intended to express that the goods are in the area the cover plate is largely or completely covered so that no or only minimal or justifiable blown air leakage losses occur.
  • the material to be shaken is enclosed on three of the four sides, namely at least by means of the at least two side stops arranged at right angles to one another and the side cover plate which forms the U-shape therewith.
  • the blowing air essentially enters through the blowing means associated with the first side stop into the space formed between the two stops, the side cover plate, the top cover plate and the support table, and between the sheets forming the stack, around the space to leave the open side of the vibrating table opposite the first stop.
  • other blowing devices can also be integrated in the second lateral stop, possibly also in the cover plate (s).
  • the upper cover plate is constructed in several parts and can be moved apart or moved together in the direction of two specific, opposite sides thereof.
  • the multi-part design of the cover plate makes it possible, in cooperation with the at least one side cover plate, preferably two side cover plates, which are oriented perpendicular to the first lateral stop, that the space specifying the air chamber is adjustable in accordance with the format of the material to be shaken. It is thus ensured that the air is blown into the material to be shaken at an optimal distance from the material to be shaken to the components surrounding it or to the blowing devices accommodated by the components.
  • the side cover plates are preferably held in the upper cover plate and can be moved perpendicularly to this and thus also perpendicular to the support table, so that different stacking heights can also be optimally controlled due to the design of the vibrating table.
  • the upper cover plate it is particularly contemplated that it is rectangular and has three parts, with a T-shaped base plate part mounted in the portal frame, and two further plate parts arranged in the expanded state in the area of the remaining cross-section of the rectangle, the two further plate parts being slidably mounted in the base plate part towards and away from each other.
  • This design also ensures that the upper cover plate largely covers the material to be shaken at the top without any gaps and that this is also ensured if the two further plate parts are positioned towards one another via the T-shaped base plate part.
  • the displacement of the other two plate parts is expediently carried out by means of two pneumatic cylinders arranged on the upper side of the base plate part, the piston rods of which engage the other plate parts.
  • the two side cover plates are preferably positioned on the sides of the two further plate parts facing away from one another and are mounted in the respective further plate part.
  • a plurality of hold-down devices in particular two hold-down devices, can be integrated in the upper cover plate on the side facing away from the first stop.
  • the vibrating table has a third lateral stop, which thus forms the shape of a U with the first and the second stop.
  • the third stop serves the possibility of shaking in two corners of the vibrating table, in order to take this into account, the two side cover plates are also provided, with only the second or third stop always being used and the stop assigned not being used side cover plate.
  • the second and / or the third stop can also be provided with blowing devices integrated into these for blowing air between the sheet layers.
  • the blowing devices of the first stop have fixedly arranged stabilizing nozzles and fan nozzles movable perpendicular to the surface of the first side cover plate, with stabilizing nozzles in the end regions of the first stop.
  • the blowing devices only have fixed stabilizing nozzles.
  • the stabilizing nozzles are arranged essentially in the end regions of the respective stop and the fan nozzles between them.
  • the outer stabilizing nozzles thus continuously replace the air escaping between the sheet layers from the outside, while the inner, movable fan nozzles ventilate only certain sheet layers depending on their position.
  • the outlet opening of the stabilizing nozzles can advantageously be individually adjusted to the quality of the material to be shaken by changing the cross section of the opening. The outlet opening can be adjusted or closed according to the height at which the goods are inserted.
  • the air supply at the outer stabilizing nozzles can be blocked.
  • the fan nozzles should have a slide with outlet openings that are limited in height.
  • the width of the outlet openings is expediently adjustable to the quality of the material to be shaken.
  • the slide is advantageously moved back and forth and controlled so that the outlet openings only ventilate the newly placed position of the material to be shaken.
  • the upper cover plate in particular in the region of the base plate part, can have further blowing devices for generating an air cushion between the upper cover plate and the material to be shaken.
  • the upper cover plate in particular in the area of the base plate part, in the area of the support table facing away from the first stop has adjustable auxiliary vibratory stops in the direction of the first stop. After a short ventilation and shaking time, these shaking aid stops are in front of the stack lowered and slowly drawn to the stack with little pressure to the set format size. The sheet layers still protruding are pushed into the ventilated stack.
  • the vibrating table can also have a power-actuated retaining element for clamping a sheet layer, which passes through an opening in the first stop for clamping.
  • a sealing element should be provided which closes this opening at the first stop in the non-operating position of the retaining element.
  • the upper cover plate used in the invention thus represents a boundary surface for the material to be shaken on the side facing away from the support table. It enables the support table to be tilted much more from the horizontal position than would be possible without an upper cover plate, for example by one Angle of 90 ° from the horizontal.
  • the interaction of the upper cover plate with the blowing devices is essential.
  • the fixed stabilization nozzles ventilate the full width of the stack, the air escaping on the non-enclosed side of the stack is continuously replaced.
  • the upper cover plate has to be opened, that is, moved vertically away from the support table.
  • the stabilizing nozzles prevent the stack from lying in an S-shape by opening the top cover plate.
  • the movable fan nozzles are moved back and forth in the depth direction of the stack. This ventilates the area of the stack that is swept by the fan nozzles.
  • the air nozzles can be adapted to the different materials of the goods.
  • the ventilation of the stack is superimposed by the shaking movement of the support table.
  • the fan nozzles slightly lift the ventilated stacking area from the assigned stop. After passing through the fan-out nozzles, the stack area just ventilated rests on the assigned side stop due to its own weight.
  • the upper cover plate must not press its individual sheet layers between itself and the support table while the stack is being ventilated, since otherwise the individual sheet layers would not “float”.
  • a scanning element that is directed into the space between the support table and the upper cover plate and is movable perpendicular to the surface of the upper cover plate is therefore advantageously provided. This scans the top sheet layer and controls the top cover plate according to its position.
  • a belt drive with fan-out brushes can be mounted in the upper covering plate in the region of a side of the upper cover plate having blowing devices.
  • the fanning out of the stack is optimized so that blowing air can be blown between the individual sheet layers even more effectively by means of the blowing devices.
  • the arrangement and design of the upper cover plate are of particular importance in the vibrating table according to the invention. Due to their storage in the portal frame, it is possible to move them from the area above the storage table so that it can be loaded without hindrance. On the other hand, the multi-part design of the upper cover plate allows it to be adjusted to the respective format of the sheet layers to be jogged, whereby it is always guaranteed that the blowing device is arranged in a defined position with respect to the stack to be jogged regardless of the format.
  • the basic design of the vibrating table according to the invention can be seen in the fact that the material to be vibrated and ventilated is completely enclosed except for an outlet area for the blown air.
  • the element enclosing the material on this side being designed such that it also serves to discharge the blown air.
  • a third lateral cover plate can be arranged parallel to the first stop and can be moved in the plate plane and perpendicularly thereto, the third cover plate having at least one air discharge opening. A directional flow within the space occupied by the material is given in particular if, instead of this third cover plate, a funnel-shaped cover element is provided, the air discharge opening of which is at negative pressure.
  • FIGS 1 and 2 show a vibrating table 1 with one a vibrating table base 4 resting console 2 for the support table 3 of the vibrating table 1.
  • the console 2 is fork-shaped, with two lateral guides 6 and a central lifting cylinder 7.
  • a flange section 8 of the console 2 receives a bearing element 10 which can be pivoted about an axis 9.
  • a further, hydraulically acting lifting cylinder 11 acts on the bearing element 10, which is mounted on the guide 6 via an extension 12 and can be moved with the lifting cylinder 7.
  • the reference numeral 13 designates the device, which is designed in a known manner, for generating a shaking movement of the support table 3. This is pivotally mounted about an axis 5 arranged perpendicular to the axis 9.
  • a further hydraulically acting lifting cylinder 14 is used for pivoting, which acts on the one hand at a distance from the pivot point of the support table 3 on its underside and on the other hand on the bearing element 10.
  • a vertical movement of the support table 3 is thus possible by means of the lifting cylinder 7, while the lifting cylinder 11 permits a pivoting movement of the support table 3 about the axis 9 over an angle of 90 ° in its vertical position.
  • the lifting cylinder 14 enables pivoting movements of the support table 3 about the axis 5 through an angle of at least 20 ° to both sides, as is shown by way of example in FIG. 8 for one side.
  • the inclinations of the support table 3 about the axes 5 and 9 can of course be superimposed.
  • two guide rails 15 are arranged laterally for a U-shaped portal frame 16 spanning the support table 3, which can be moved in the plane of the support table 3 by means of a rodless cylinder 18 assigned to the leg 17 of the portal frame 16.
  • Two toothed belt drives 19 arranged on the side of the support table 3, which are connected to one another by means of a synchronous shaft 20, ensure that the portal frame 16 is synchronized.
  • an upper cover plate 21 is movably mounted parallel to the support table 3 and can be displaced by means of a drive unit 22 designed as an electric motor with gear elements and a slip clutch.
  • the upper cover plate 21 has a rectangular shape corresponding to the support table 3, its length and width dimensions essentially matching.
  • the upper cover plate 21 is variable in terms of its cover area. This is achieved in that it is formed from three parts, namely a T-shaped base plate part 21a, which is mounted in the portal frame 16, and two further plate parts 21b and 21c arranged in the expanded state in the region of the residual cross section of the rectangle of the upper cover plate 21, these in the Base plate part 21a are slidably mounted towards or away from each other.
  • FIG. 3 illustrates the upper cover plate 21 when further plate parts 21b and 21c are moved away from one another, that is to say with the maximum cover area of the upper cover plate 21.
  • the dimensions of the base plate part 21a and further plate parts 21b and 21c are dimensioned such that those between the plate parts 21a and 21b or 21a and 21c formed gaps are as small as possible.
  • two pneumatic cylinders 23a and 23b are mounted in it, the piston rods 24a and 24b of which engage the two further plate parts 21b and 21c.
  • the vibrating table 1 is provided with two corresponding sides of the support table 3 associated with two corresponding sides of the support table 3 for shaking the material 40 present in sheet layers in two directions, namely a first stop 25 firmly connected to a longitudinal side of the support table 3, and one second stop 26, which is assigned to a transverse side of the support table 3, further a third stop 27, which is assigned to the other transverse side of the support table 3.
  • the two second and third stops 26 and 27 arranged parallel to one another and supported in the support table 3 can be moved in and out vertically to the support plane of the support table 3, the drives for moving the stops 26 and 27 not being shown in the figures.
  • the respective stop 26 or 27 has a clamping plate 29 for the good 40 which can be moved perpendicularly thereto by means of a lifting cylinder 28.
  • blowing devices are integrated into the three stops 25, 26 and 27, which are formed by stabilizing nozzles 30 and / or fan nozzles 31. Since the main blowing direction is predetermined by the long first stop 25 when the goods are released, the first stop 25 should have both the fixedly arranged stabilizing nozzles 30 and the fan nozzles 31 movable perpendicular to the surface of the support table 3, in particular the stabilizing nozzles 30 in the stops 26 and 27 facing end regions of the stop 25 are arranged. In the case of the two stops 26 and 27 assigned to the transverse sides of the support table 3, it is considered sufficient if only the fixedly arranged stabilizing nozzles 30 are integrated into them.
  • the air outlet cross section of the outlet openings of the respective stabilizing nozzle 30 is adjustable and / or the outlet openings of the respective stabilizing nozzle 30 can be closed in the upper or lower region thereof according to the insertion height of the goods 40 and / or individual stabilizing nozzles 30 can be completely blocked.
  • the fan-out nozzles 31 can be provided with reciprocating slides with outlet openings which are limited in height. This detail is also not shown in the drawings.
  • the vibrating table shown in the figures can finally be provided with two side cover plates 33 and 34 which are assigned to the plate parts 21c and 21b of the upper cover plate 21 and can be removed therefrom. Shown in the figures is only the side cover plate 33 assigned to the plate part 21c and required for shaking in the right-hand corner of the table. In the event of shaking in the left-hand corner of the table, the plane of symmetry 32 on the plate part 21b that runs vertically to the surface of the support table 3 would instead be used to mount the other cover plate 34, as shown in broken lines in FIG. 1, for its raised position. The respective side cover plate 33 or 34 is thus always mounted on that plate part 21b or 21c that the corner between the Stops 25 and 26 or 25 and 27, in which the material 40 is shaken, is opposite.
  • the side cover plate 33 can be arranged perpendicular to the first lateral stop 25 and can be moved perpendicular to the plane of the plate part 21c by means of an electric actuator 35 which is mounted in the plate part 21c.
  • the side cover plate 33 is thus assigned to the stop 27 and the side cover plate 34 to the side stop 26, for the latter a corresponding actuator assigned to the plate part 21b is provided.
  • the vibrating table described in terms of the basic structure works as follows: Starting from the position according to FIGS. 1 and 2, but with the dash-dotted position of the portal frame 16 resulting from FIG. 2, the material to be shaken is placed on the support table 3 which is in the horizontal position. If the left corner 36 of the support table 3 is to be shaken, the side cover plate 34 is removed, so that according to the invention only the other side cover plate 33 is used. After the material to be shaken has been applied to the support table 3, the upper cover plate 31 is moved over the material 40 to be shaken and then the stop 26 assigned to the corner 36 is completely extended into the position shown in broken lines. Due to the stationary stop 25 and the extended stop 26, the support table 3 could already be transferred to the laterally inclined position shown in FIG.
  • the vibrating table according to the invention would function like conventional vibrating tables.
  • the upper cover plate 21 is lowered in the direction of the goods 40 by means of the drive unit 22, a movably mounted scanning element 41 mounted in the base plate part 21a and only shown in FIG scans the uppermost sheet layer of the good 40 and controls the drive unit 22 so that it positions the upper cover plate 21 at a predetermined distance from the uppermost sheet layer of the good 40.
  • the side cover plate 33 which is lowered onto the surface of the support table 3 by means of the electric actuator 35, interacts with the side of the stack of sheets 40 opposite the side stop 26, which is formed in particular from individual sheets of paper, cardboard, foil, etc. as shown in Figure 8.
  • the longitudinal dimension of the upper cover plate 21 in the area of the two plate parts 21b and 21c has been adjusted to the longitudinal dimension of the material to be shaken, that is, the plate part 21c is so far proceed so that the side cover plate 33 is positioned adjacent to the associated stack side surface.
  • the stack to be shaken is complete except for the side of the support table 3 opposite the stop 25, that is to say closed on five sides, the ventilation space being automatically adjustable depending on the format size and the insertion height of the goods 40 to be shaken in order to minimize blown air losses.
  • the vibrating mechanism and the stabilizing nozzles 30 and the fan nozzles 31 in the stops 25 and 26 are activated (the nozzles in the stop 27 that is not required are not acted upon), and the desired inclination of the support table 3 is set, the air cushion between the individual sheet layers of the goods 40 that this can swim between the support table 3 and the upper cover plate 21.
  • the stabilizing nozzles 30 provide ventilation of the goods 40 over their full width and prevent the stack from becoming S-shaped sets.
  • the movable fan nozzles 31 cause the stack area just ventilated to be lifted briefly from the associated stops 25 and 26.
  • the aim is that when it is lowered onto the surface of the support table 3, a small gap initially remains, and this cover plate 33 only after Short vibration and ventilation time until the stack is drawn in slowly and with low pressure. This movement can take place by acting on the pneumatic cylinder 23a in the sense of reducing the size of the upper cover plate 21.
  • the side cover plate 33 and, if used appropriately, of course also the side cover plate 34 thus serve the purpose of preventing the lateral escape of the blown air and also of supporting the alignment of the goods.
  • further air nozzles can be provided in the base plate part 21a, which form an air cushion between the material 40 to be shaken and the upper cover plate 21 when shaken. In the illustration in FIG.
  • two hold-downs 37 which are mounted on the side of the upper cover plate 21 facing away from the stop 25 in the base plate part 21 a, are also used, which serve the purpose of clamping the material to be shaken on the support table 3.
  • the gap of about 20 to 40 mm which arises between the upper cover plate 21 and the stack 3 to be shaken, promotes the separation and the "floating" (spreading out) of the individual sheet layers during ventilation.
  • the paper stack is held in place with a small adjustable gap between the stops 25 and 26. It should be prevented that individual sheet layers projecting over.
  • vibrating auxiliary stops 38 in particular two vibrating auxiliary stops, can finally be provided on the side of the base plate part 21a facing away from the stop 25 at a short distance from the plane of symmetry 32 in the direction of the stop 25. These thus cooperate with the stack side facing away from the stop 25.
  • the auxiliary vibrating stops 38 can also be adjusted to the format size and insertion height of the goods 40 to be vibrated. After a short ventilation and shaking time, the stops 38 are lowered approx. 20 mm apart from the stack and slowly with a small auxiliary drive Printing on the set format size included in the stack. Here, the above sheet layers are pushed into the stack to be ventilated.
  • a pneumatic cylinder 39 which is shown in more detail in the representation of FIG Retaining element 42 for use, which can be inserted through an opening 43 in the stop 25 and placed on the lower stacking layer in order to clamp it on the support table 3 when the vibrating table is loaded with a further stacked material layer.
  • a sealing element 44 is provided, which closes the opening 43 in the stop 25 in the rest position of the holding element 42, that is to say when shaking and venting.
  • FIGS. 3 to 5 in particular make it clear that the blown air is fed to the stabilizing nozzles 30 or fan nozzles 31 via a distributor box 45 assigned to the respective stop 25, 26 or 27.
  • the invention is not limited to the fact that pure air flows through the blowing nozzles. If, for example, leafy material has to be shaken that is statically charged, ionized air should be supplied through the blowing nozzles.
  • the support table 3 is moved back into the position shown in FIGS. 1 and 2, that is to say also the portal of the frames 16 into the position shown in broken lines in FIG.
  • the clamping plate 29 assigned to the stop 26 is moved over the facing end of the stack 40 and the stack is clamped in this area when the stop 26 is subsequently lowered.
  • the air can then be pressed out of the stack by means of an air spreading device, not shown, for this purpose, for example, a roller mounted in the portal frame and arranged parallel to the stop 26 is removed from the stop 26 starting, rolled over the surface of the stack.
  • the shaken material can then be pushed over to a receiving table (not shown) or fed to a further processing station, in particular a cutting machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Jigging Conveyors (AREA)

Description

Die Erfindung betrifft einen Rütteltisch zum Rütteln von in Blattlagen vorliegendem Gut, mit mindestens zwei, benachbarten Seiten eines Auflagetisches zugeordneten, seitlichen Anschlägen für das Gut, sowie einem in der Ebene des Auflagetisches verfahrbaren Portalrahmen, wobei der in eine Vibrationsbewegung versetzbare Auflagetisch aus einer horizontalen Stellung in Richtung der beiden Anschläge neigbar ist.The invention relates to a vibrating table for vibrating material present in sheet layers, with at least two side stops for the material assigned to adjacent sides of a support table, and to a portal frame which can be moved in the plane of the support table, the support table which can be vibrated from a horizontal position is tiltable in the direction of the two stops.

Bei Rütteltischen dient die Möglichkeit, den Auflagetisch in Richtung der seitlichen Anschläge zu neigen, dem Zweck, die auf dem Auflagetisch aufliegenden einzelnen Bögen kantengenau an den Anschlägen auszurichten. Damit sich die Bögen einfach zueinander verschieben können, wird das Blattgut vor dem Rütteln gelüftet, insbesondere in einer separaten Vorrichtung. Um nach dem Rütteln eine unerwünschte Verschiebung des Blattgutes zu verhindern, erfolgt nach dem Klemmen des Gutes mittels eines Klemmelementes das Austreichen der Luft durch eine von der Klemmstelle weg zum gegenüberliegenden Rand des Blattgutstapels verfahrbare Luftaustreicheinrichtung. Der Stapel stellt sich damit nach dem Entlüften als kompakter Block dar und kann so beispielsweise einer nachfolgenden Schneidstation zugeführt werden. Das Rütteln des Gutes erfolgt in aller Regel dadurch, daß der geneigte Auflagetisch in eine Vibrationsbewegung versetzt wird, das Ausstreichen der Luft geschieht üblicherweise durch eine auf das Gut absenkbare Walze, die über das Gut gerollt wird und damit die Luft aus dem Stapel auspreßt.With vibrating tables, there is the option of placing the support table in Tilt direction of the side stops, the purpose of aligning the individual sheets lying on the support table with the edges of the stops. To ensure that the sheets can easily move towards each other, the sheet material is lifted before shaking, especially in a separate device. In order to prevent an undesired displacement of the sheet material after shaking, the air is spread out after clamping the material by means of a clamping element by means of an air spreading device which can be moved away from the clamping point to the opposite edge of the sheet material stack. The stack thus presents itself as a compact block after venting and can thus be fed to a subsequent cutting station, for example. The goods are usually shaken by causing the inclined support table to vibrate, and the air is usually spread out by a roller which can be lowered onto the goods and is rolled over the goods, thus squeezing the air out of the stack.

Ein Rütteltisch der genannten Art ist beispielsweise aus dem deutschen Gebrauchsmuster 90 04 711 bekannt. Da bei diesem ausschließlich die beiden Anschläge das zu rüttelnde Gut in der Ebene des Auflagetisches halten, kann der Auflagetisch nur um einen bestimmten Winkel aus der horizontalen Stellung geneigt werden. Ein relativ geringer Neigungswinkel bedingt aber, daß sich die einzelnen Blattlagen nur bei entsprechend langer Rütteldauer an die Anschläge anlegen und das Gut damit kantengenau ausgerichtet ist. Dieser Effekt wird dann noch weiter nachteilig beeinflußt, wenn das zu rüttelnde Gut eine relativ rauhe Oberfläche aufweist. Bei dem Rütteltisch dient der verfahrbare Portalrahmen der Aufnahme von Luftauspreßwalzen, die mittels pneumatischer Antriebe senk- und hebbar sind, eine Belüftungseinrichtung ist in den Rütteltisch nicht integriert.A vibrating table of the type mentioned is known for example from German utility model 90 04 711. Since only the two stops hold the material to be shaken in the plane of the support table, the support table can only be tilted from the horizontal position by a certain angle. A relatively small angle of inclination, however, means that the individual sheet layers only lie against the stops with a correspondingly long shaking time and that the goods are thus aligned precisely. This effect is then adversely affected if the material to be shaken has a relatively rough surface. On the vibrating table, the movable portal frame is used to hold air squeezing rollers that can be lowered and raised by means of pneumatic drives. A ventilation device is not integrated in the vibrating table.

Aus dem Prospekt "Herold-Stapelwender" der Maschinenfabrik H. Herold, Bonn, ist ferner ein Stapelwender mit Ausrichtung des Stapels durch Rütteln bekannt, der ein parallel zur Oberfläche des Auflagetisches angeordnetes und senkrecht zu dieser verfahrbares, einteiliges, ebenes Deckelement und auf zwei gegenüberliegenden Seiten Blaseinrichtungen zum seitlichen Einblasen von Luft zwischen die Blattlagen aufweist.From the brochure "Herold pile turner" of the machine factory H. Herold, Bonn, a pile turner with alignment of the pile by shaking is also known, which is arranged parallel to the surface of the table and vertically movable, one-piece, flat cover element and on two opposite Side blowing devices for laterally blowing air between the sheet layers.

Es ist Aufgabe der vorliegenden Erfindung, einen Rütteltisch der genannten Art so weiter zu bilden, daß mit diesem ein schnelles, kantengenaues Ausrichten des zu rüttelnden Gutes, bei geringem Energieeinsatz, möglich ist, und zwar weitgehend unabhängig von der Materialbeschaffenheit des verwendeten Gutes.It is an object of the present invention to develop a vibrating table of the type mentioned in such a way that a quick, edge-precise alignment of the material to be vibrated is possible with little use of energy, largely independently of the material properties of the material used.

Der Rütteltisch der eingangs genannten Art ist erfindungsgemäß gekennzeichnet durch folgende Merkmale:

  • eine im Portalrahmen gelagerte, parallel zur Oberfläche des Auflagetisches angeordnete, obere Abdeckplatte zur Aufnahme des Gutes zwischen dieser und dem Auflagetisch,
  • im Portalrahmen gelagerte Mittel zum Verfahren der oberen Abdeckplatte senkrecht zur Oberfläche des Auflagetisches,
  • Blaseinrichtungen zum Einblasen von Luft zwischen die Blattlagen, wobei zumindest in einen ersten der seitlichen Anschläge die Blaseinrichtungen integriert sind,
  • mindestens eine seitliche Abdeckplatte zum Abdecken des zwischen dem Auflagetisch und der oberen Abdeckplatte gebildeten Spaltes, wobei diese Abdeckplatte senkrecht zu dem ersten Anschlag anordbar ist und Mittel zum Verfahren dieser Abdeckplatte auf den parallel zu dieser angeordneten, zweiten Anschlag zu bzw. von diesem weg vorgesehen sind.
According to the invention, the vibrating table of the type mentioned at the outset is characterized by the following features:
  • an upper cover plate mounted in the portal frame and arranged parallel to the surface of the support table for receiving the goods between it and the support table,
  • means stored in the portal frame for moving the upper cover plate perpendicular to the surface of the support table,
  • Blowing devices for blowing air between the sheet layers, the blowing devices being integrated at least in a first of the lateral stops,
  • at least one side cover plate for covering the gap formed between the support table and the upper cover plate, this cover plate being arranged perpendicular to the first stop and means for moving this cover plate onto the second stop arranged parallel to it and away from it .

Wesentlich ist bei dem erfindungsgemäß gestalteten Rütteltisch, daß das zu rüttelnde Gut zumindest bis auf eine Seite, die Luftaustrittsseite, vollständig umschlossen ist, so daß beim Rütteln des Gutes unter Zuhilfenahme der Blasluft das Rüttelergebnis innerhalb kurzer Zeit bei minimalem Luftdurchsatz, somit geringem Energieeinsatz erzielt werden kann. So wird (auf die Ruheposition des Rütteltisches mit horizontalem Auflagetisch bezogen) das zu rüttelnde Gut unten vom Auflagetisch und oben von der oberen Abdeckplatte abgedeckt, wobei die Bezeichnung "Abdeckplatte" zum Ausdruck bringen soll, daß der Gut im Bereich der Abdeckplatte weitgehend bzw. vollständig abgedeckt ist, damit keine oder nur minimale bzw. vertretbare Blasluftleckverluste auftreten. Ferner ist das zu rüttelnde Gut auf drei der vier Seiten umschlossen, nämlich zumindest mittels der mindestens zwei im rechten Winkel zueinander angeordneten seitlichen Anschläge und der mit diesen die U-Form bildenden seitlichen Abdeckplatte. Bei dieser Gestaltung tritt die Blasluft im wesentlichen durch die dem ersten seitlichen Anschlag zugeordneten Blaseinrichtungen in den zwischen den beiden Anschlägen, der seitlichen Abdeckplatte, der oberen Abdeckplatte und dem Auflagetisch gebildeten Raum ein, und zwischen den den Stapel bildenden Blättern hindurch, um den Raum auf der dem ersten Anschlag gegenüberliegenden offenen Seite des Rütteltisches zu verlassen. Selbstverständlich können weitere Blaseinrichtungen auch in den zweiten seitlichen Anschlag integriert sein, gegebenenfalls auch in die Abdeckplatte(n).It is essential in the vibrating table designed according to the invention that the material to be vibrated is completely enclosed at least on one side, the air outlet side, so that when the material is vibrated with the aid of the blown air, the vibrating result can be achieved in a short time with minimal air throughput and thus low energy consumption can. Thus (based on the resting position of the vibrating table with a horizontal support table) the goods to be shaken are covered at the bottom by the support table and at the top by the top cover plate, the name "cover plate" being intended to express that the goods are in the area the cover plate is largely or completely covered so that no or only minimal or justifiable blown air leakage losses occur. Furthermore, the material to be shaken is enclosed on three of the four sides, namely at least by means of the at least two side stops arranged at right angles to one another and the side cover plate which forms the U-shape therewith. In this configuration, the blowing air essentially enters through the blowing means associated with the first side stop into the space formed between the two stops, the side cover plate, the top cover plate and the support table, and between the sheets forming the stack, around the space to leave the open side of the vibrating table opposite the first stop. Of course, other blowing devices can also be integrated in the second lateral stop, possibly also in the cover plate (s).

Gemäß einer besonderen Ausführungsform der Erfindung ist vorgesehen, daß die obere Abdeckplatte mehrteilig ausgebildet ist und in Richtung zweier bestimmter, einander gegenüberliegender ihrer Seiten auseinander- bzw. zusammenfahrbar ist. Die mehrteilige Ausbildung der Abdeckplatte ermöglicht es, im Zusammenwirken mit der mindestens einen seitlichen Abdeckplatte, wobei bevorzugt zwei seitliche Abdeckplatten vorgesehen sind, die senkrecht zum ersten seitlichen Anschlag orientiert sind, daß der die Luftkammer vorgebende Raum entsprechend dem Format des zu rüttelnden Gutes verstellbar ist. Es ist damit sichergestellt, daß das Einblasen der Luft in das zu rüttelnde Gut bei optimalem Abstand des zu rüttelnden Gutes zu den dieses umgebenden Bauteilen bzw. den von den Bauteilen aufgenommenen Blaseinrichtungen erfolgt. Die seitlichen Abdeckplatten sind dabei bevorzugt in der oberen Abdeckplatte gehalten und senkrecht zu dieser und damit auch senkrecht zum Auflagetisch verfahrbar, so daß auch unterschiedliche Stapelhöhen aufgrund der erfindungsgemäßen Gestaltung des Rütteltisches optimal beherrschbar sind.According to a special embodiment of the invention, it is provided that the upper cover plate is constructed in several parts and can be moved apart or moved together in the direction of two specific, opposite sides thereof. The multi-part design of the cover plate makes it possible, in cooperation with the at least one side cover plate, preferably two side cover plates, which are oriented perpendicular to the first lateral stop, that the space specifying the air chamber is adjustable in accordance with the format of the material to be shaken. It is thus ensured that the air is blown into the material to be shaken at an optimal distance from the material to be shaken to the components surrounding it or to the blowing devices accommodated by the components. The side cover plates are preferably held in the upper cover plate and can be moved perpendicularly to this and thus also perpendicular to the support table, so that different stacking heights can also be optimally controlled due to the design of the vibrating table.

Bezüglich der oberen Abdeckplatte ist insbesondere daran gedacht, daß diese rechteckig und dreiteilig ausgebildet ist, mit einem T-förmigen, im Portalrahmen gelagerten Basisplattenteil, sowie zwei in auseinandergefahrenem Zustand im Bereich des Restquerschnittes des Rechteckes angeordneten weiteren Plattenteilen, wobei die beiden weiteren Plattenteile im Basisplattenteil aufeinander zu bzw. voneinander weg verschieblich gelagert sind. Auch bei dieser Gestaltung ist sichergestellt, daß die obere Abdeckplatte weitgehend spaltfrei das zu rüttelnde Gut oben abdeckt und daß dies auch dann gewährleistet ist, wenn die beiden weiteren Plattenteile über das T-förmige Basisplattenteil aufeinander zu geschoben positioniert sind. Die Verschiebung der beiden weiteren Plattenteile erfolgt zweckmäßig mittels zweier auf der Oberseite des Basisplattenteiles angeordneter Pneumatikzylinder, deren Kolbenstangen an den weiteren Plattenteilen angreifen. Auf den einander abgewandten Seiten der beiden weiteren Plattenteile sind bevorzugt die beiden seitlichen Abdeckplatten positioniert und im jeweiligen weiteren Plattenteil gelagert. Zusätzlich können in der oberen Abdeckplatte auf der dem ersten Anschlag abgewandten Seite mehrere Niederhalter, insbesondere zwei Niederhalter, für das Gut integriert sein.With regard to the upper cover plate, it is particularly contemplated that it is rectangular and has three parts, with a T-shaped base plate part mounted in the portal frame, and two further plate parts arranged in the expanded state in the area of the remaining cross-section of the rectangle, the two further plate parts being slidably mounted in the base plate part towards and away from each other. This design also ensures that the upper cover plate largely covers the material to be shaken at the top without any gaps and that this is also ensured if the two further plate parts are positioned towards one another via the T-shaped base plate part. The displacement of the other two plate parts is expediently carried out by means of two pneumatic cylinders arranged on the upper side of the base plate part, the piston rods of which engage the other plate parts. The two side cover plates are preferably positioned on the sides of the two further plate parts facing away from one another and are mounted in the respective further plate part. In addition, a plurality of hold-down devices, in particular two hold-down devices, can be integrated in the upper cover plate on the side facing away from the first stop.

Gemäß einer weiterhin bevorzugten Gestaltung des Rütteltisches weist dieser einen dritten seitlichen Anschlag auf, der somit mit dem ersten und dem zweiten Anschlag die Form eines U bildet. Der dritte Anschlag dient der Möglichkeit, in zwei Ecken des Rütteltisches zu rütteln, um diesem Umstand Rechnung zu tragen sind auch die beiden seitlichen Abdeckplatten vorgesehen, wobei immer nur der zweite oder der dritte Anschlag zum Einsatz gelangt und die dem nicht zum Einsatz gelangenden Anschlag zugeordnete seitliche Abdeckplatte. Dabei kann neben dem ersten Anschlag auch der zweite und/oder der dritte Anschlag mit in diese integrierten Blaseinrichtungen zum Einblasen von Luft zwischen die Blattlagen versehen sein.According to a further preferred configuration of the vibrating table, it has a third lateral stop, which thus forms the shape of a U with the first and the second stop. The third stop serves the possibility of shaking in two corners of the vibrating table, in order to take this into account, the two side cover plates are also provided, with only the second or third stop always being used and the stop assigned not being used side cover plate. In addition to the first stop, the second and / or the third stop can also be provided with blowing devices integrated into these for blowing air between the sheet layers.

Gemäß einer besonderen Gestaltung weisen die Blaseinrichtungen des ersten Anschlages fest angeordnete Stabilisierungsdüsen und senkrecht zur Oberfläche der ersten seitlichen Abdeckplatte bewegliche Auffächerdüsen auf, mit Stabilisierungsdüsen in den Endbereichen des ersten Anschlages. Für den zweiten und dritten Anschlag ist es ausreichend, wenn deren Blaseinrichtungen nur fest angeordnete Stabilisierungsdüsen aufweisen.According to a special design, the blowing devices of the first stop have fixedly arranged stabilizing nozzles and fan nozzles movable perpendicular to the surface of the first side cover plate, with stabilizing nozzles in the end regions of the first stop. For the second and third It is sufficient if the blowing devices only have fixed stabilizing nozzles.

Besonders gute Ergebnisse hinsichtlich der Belüftung des zu rüttelnden Stapels auf dessen voller Breite ergeben sich, wenn die, auf den jeweiligen seitlichen Anschlag bezogen, die Stabilisierungsdüsen im wesentlichen in den Endbereichen des jeweiligen Anschlages und die Auffächerdüsen zwischen diesen angeordnet sind. Die äußeren Stabilisierungsdüsen ersetzen damit die zwischen den Blattlagen entweichende Luft kontinuierlich von außen, während die inneren, beweglichen Auffächerdüsen entsprechend deren Position nur bestimmte Blattlagen belüften. Die Austrittsöffnung der Stabilisierungsdüsen ist vorteilhaft individuell auf die Qualität des zu rüttelnden Gutes einstellbar, in dem der Querschnitt der Öffnung veränderbar ist. Die Austrittsöffnung ist nach Einlagehöhe des Gutes nach unten und oben einstellbar bzw. verschließbar. Je nach Formatgröße und Rüttelrichtung, das heißt, Anlage am ersten seitlichen Anschlag und am zweiten seitlichen Anschlag bzw. am ersten seitlichen Anschlag und am dritten seitlichen Anschlag kann die Luftzufuhr an den äußeren Stabilisierungsdüsen gesperrt werden. Die Auffächerdüsen sollten einen Schieber mit Austrittsöffnungen aufweisen, die in der Höhe begrenzt sind. Die Austrittsöffnungen sind zweckmäßig nur in der Breite individuell auf die Qualität des zu rüttelnden Gutes einstellbar. Der Schieber wird vorteilhaft hin- und herbewegt und so gesteuert, daß die Austrittsöffnungen nur die neu aufgelegte Lage des zu rüttelnden Gutes belüften.Particularly good results with regard to the ventilation of the stack to be shaken over its full width are obtained if, based on the respective lateral stop, the stabilizing nozzles are arranged essentially in the end regions of the respective stop and the fan nozzles between them. The outer stabilizing nozzles thus continuously replace the air escaping between the sheet layers from the outside, while the inner, movable fan nozzles ventilate only certain sheet layers depending on their position. The outlet opening of the stabilizing nozzles can advantageously be individually adjusted to the quality of the material to be shaken by changing the cross section of the opening. The outlet opening can be adjusted or closed according to the height at which the goods are inserted. Depending on the size of the format and the direction of jogging, that is, the system on the first side stop and on the second side stop or on the first side stop and on the third side stop, the air supply at the outer stabilizing nozzles can be blocked. The fan nozzles should have a slide with outlet openings that are limited in height. The width of the outlet openings is expediently adjustable to the quality of the material to be shaken. The slide is advantageously moved back and forth and controlled so that the outlet openings only ventilate the newly placed position of the material to be shaken.

Zusätzlich kann die obere Abdeckplatte, insbesondere im Bereich des Basisplattenteiles, weitere Blaseinrichtungen zum Erzeugen eines Luftpolsters zwischen der oberen Abdeckplatte und dem zu rüttelnden Gut aufweisen. Ferner kann vorgesehen sein, daß die obere Abdeckplatte, insbesondere im Bereich des Basisplattenteiles, in dem dem ersten Anschlag abgewandten Bereich des Auflagetisches in Richtung des ersten Anschlages verstellbare Rüttelhilfsanschläge aufweist. Nach kurzer Belüftungs- und Rüttelzeit werden diese Rüttelhilfsanschläge vor dem Stapel gesenkt und langsam mit geringem Druck auf die eingestellte Formatgröße zum Stapel beigezogen. Hierbei werden die noch vorstehenden Blattlagen in den belüfteten Stapel hineingeschoben.In addition, the upper cover plate, in particular in the region of the base plate part, can have further blowing devices for generating an air cushion between the upper cover plate and the material to be shaken. Furthermore, it can be provided that the upper cover plate, in particular in the area of the base plate part, in the area of the support table facing away from the first stop has adjustable auxiliary vibratory stops in the direction of the first stop. After a short ventilation and shaking time, these shaking aid stops are in front of the stack lowered and slowly drawn to the stack with little pressure to the set format size. The sheet layers still protruding are pushed into the ventilated stack.

Der Rütteltisch kann ferner ein kraftmittelbetätigbares Festhalteelement zum Klemmen einer Blattlage aufweisen, das zum Klemmen eine Öffnung im ersten Anschlag durchsetzt. Um Luftlekkagen im Bereich dieser Öffnung auszuschließen bzw. weitgehend zu verhindern, sollte ein Abdichtelement vorgesehen sein, das in der Nichtbetriebsstellung des Festhalteelements diese Öffnung im ersten Anschlag verschließt.The vibrating table can also have a power-actuated retaining element for clamping a sheet layer, which passes through an opening in the first stop for clamping. In order to exclude or largely prevent air leakage in the area of this opening, a sealing element should be provided which closes this opening at the first stop in the non-operating position of the retaining element.

Die bei der Erfindung Verwendung findende obere Abdeckplatte stellt damit eine Begrenzungsfläche für das zu rüttelnde Gut auf der dem Auflagetisch abgewandten Seite dar. Sie ermöglicht, den Auflagetisch wesentlich stärker aus der horizontalen Stellung zu neigen, als dies ohne obere Abdeckplatte möglich wäre, beispielsweise um einen Winkel von 90° aus der Horizontalen. Wesentlich ist dabei das Zusammenwirken der oberen Abdeckplatte mit den Blaseinrichtungen. Die fest angeordneten Stabilisierungsdüsen belüften den Stapel auf voller Breite, die auf der nicht umschlossenen Seite des Stapels entweichende Luft wird kontinuierlich ersetzt. Entsprechend dem "Aufschwimmen" der einzelnen Blattlagen ist die obere Abdeckplatte zu öffnen, das heißt, senkrecht vom Auflagetisch weg zu bewegen. Die Stabilisierungsdüsen verhindern dabei, daß der Stapel sich durch das Öffnen der oberen Abdeckplatte in eine S-Form legen kann. Zusätzlich werden die beweglichen Auffächerdüsen in Tiefenerstreckung des Stapels hin- und herbewegt. Hierdurch wird der von den Auffächerdüsen bestrichene Bereich des Stapels belüftet. Die Luftdüsen können den unterschiedlichsten Materialien des Gutes angepaßt werden. Überlagert wird die Belüftung des Stapels von der Rüttelbewegung des Auflagetisches. Die Auffächerdüsen heben den belüfteten Stapelbereich vom zugeordneten Anschlag leicht ab. Nach dem Passieren der Auffächerdüsen setzt sich der soeben belüftete Stapelbereich durch sein Eigengewicht wieder an den zugeordneten seitlichen Anschlag an.The upper cover plate used in the invention thus represents a boundary surface for the material to be shaken on the side facing away from the support table. It enables the support table to be tilted much more from the horizontal position than would be possible without an upper cover plate, for example by one Angle of 90 ° from the horizontal. The interaction of the upper cover plate with the blowing devices is essential. The fixed stabilization nozzles ventilate the full width of the stack, the air escaping on the non-enclosed side of the stack is continuously replaced. In accordance with the "floating" of the individual sheet layers, the upper cover plate has to be opened, that is, moved vertically away from the support table. The stabilizing nozzles prevent the stack from lying in an S-shape by opening the top cover plate. In addition, the movable fan nozzles are moved back and forth in the depth direction of the stack. This ventilates the area of the stack that is swept by the fan nozzles. The air nozzles can be adapted to the different materials of the goods. The ventilation of the stack is superimposed by the shaking movement of the support table. The fan nozzles slightly lift the ventilated stacking area from the assigned stop. After passing through the fan-out nozzles, the stack area just ventilated rests on the assigned side stop due to its own weight.

Wie zuvor beschrieben, darf die obere Abdeckplatte während des Belüftens des Stapels dessen einzelne Blattlagen nicht zwischen sich und dem Auflagetisch pressen, da sonst ein "Schwimmen" der einzelnen Blattlagen nicht möglich wäre. Um die jeweilig optimale Position der oberen Abdeckplatte zu steuern, ist deshalb vorteilhaft ein in den Raum zwischen den Auflagetisch und die obere Abdeckplatte gerichtetes, senkrecht zur Oberfläche der oberen Abdeckplatte bewegliches Abtastelement vorgesehen. Dieses tastet jeweils die oberste Blattlage ab und steuert die obere Abdeckplatte entsprechend dessen Stellung.As described above, the upper cover plate must not press its individual sheet layers between itself and the support table while the stack is being ventilated, since otherwise the individual sheet layers would not “float”. In order to control the respectively optimal position of the upper cover plate, a scanning element that is directed into the space between the support table and the upper cover plate and is movable perpendicular to the surface of the upper cover plate is therefore advantageously provided. This scans the top sheet layer and controls the top cover plate according to its position.

Zusätzlich zu den bei dem Rütteltisch Verwendung findenden Blaseinrichtungen kann im Bereich einer Blaseinrichtungen aufweisenden Seite der oberen Abdeckplatte ein Riementrieb mit Auffächerbürsten in der oberen Abdeckplatte gelagert sein. Durch einen fortlaufenden Antrieb des Riemens in einer solchen Drehrichtung, daß die auf der dem Stapel zugewandten Seite befindlichen Bürsten sich nach oben bewegen, wird das Auffächern des Stapels optimiert, so daß mittels der Blaseinrichtungen noch wirkungsvoller Blasluft zwischen die einzelnen Blattlagen geblasen werden kann.In addition to the blowing devices used in the vibrating table, a belt drive with fan-out brushes can be mounted in the upper covering plate in the region of a side of the upper cover plate having blowing devices. By continuously driving the belt in such a direction of rotation that the brushes located on the side facing the stack move upward, the fanning out of the stack is optimized so that blowing air can be blown between the individual sheet layers even more effectively by means of the blowing devices.

Besondere Bedeutung kommt bei dem erfindungsgemäßen Rütteltisch der Anordnung und Ausbildung der oberen Abdeckplatte zu. Aufgrund deren Lagerung im Portalrahmen besteht die Möglichkeit, diese aus dem Bereich oberhalb des Ablagetisches zu verfahren, so daß dieser ohne Behinderung beschickt werden kann. Andererseits gestattet es die mehrteilige Ausbildung der oberen Abdeckplatte, diese auf das jeweilige Format der zu rüttelnden Blattlagen einzustellen, wobei immer gewährleistet ist, daß die Blaseinrichtung formatunabhängig in einem definierten Stand zu dem zu rüttelnden Stapel angeordnet sind.The arrangement and design of the upper cover plate are of particular importance in the vibrating table according to the invention. Due to their storage in the portal frame, it is possible to move them from the area above the storage table so that it can be loaded without hindrance. On the other hand, the multi-part design of the upper cover plate allows it to be adjusted to the respective format of the sheet layers to be jogged, whereby it is always guaranteed that the blowing device is arranged in a defined position with respect to the stack to be jogged regardless of the format.

Wie vorstehend verdeutlicht ist die grundsätzliche Gestaltung des erfindungsgemäßen Rütteltisches darin zu sehen, daß das zu rüttelnde und zu belüftende Gut, bis auf einen Auslaßbereich für die Blasluft, vollständig umschlossen ist. Bei einem in Quaderform vorliegenden Gut bedeutet dies das Umschließen des Gutes auf fünf der sechs möglichen Seiten. Grundsätzlich ist es denkbar, auch die sechste Seite zu umschließen, wobei das das Gut auf dieser Seite umschließende Element so zu gestalten ist, daß es auch der Abfuhr der Blasluft dient. Beispielsweise kann parallel beabstandet zum ersten Anschlag eine dritte seitliche Abdeckplatte angeordnet sein, die in deren Plattenebene und senkrecht hierzu verfahrbar ist, wobei die dritte Abdeckplatte mindestens eine Luftabführöffnung aufweist. Eine gerichtete Strömung innerhalb des vom Gut eingenommenen Raumes ist insbesondere dann gegeben, wenn statt dieser dritten Abdeckplatte ein trichterförmiges Abdeckelement vorgesehen ist, dessen Luftabführöffnung an Unterdruck liegt.As clarified above, the basic design of the vibrating table according to the invention can be seen in the fact that the material to be vibrated and ventilated is completely enclosed except for an outlet area for the blown air. In the case of a good in cuboid form, this means enclosing the good on five of the six possible pages. Basically, it is also conceivable to enclose the sixth side, the element enclosing the material on this side being designed such that it also serves to discharge the blown air. For example, a third lateral cover plate can be arranged parallel to the first stop and can be moved in the plate plane and perpendicularly thereto, the third cover plate having at least one air discharge opening. A directional flow within the space occupied by the material is given in particular if, instead of this third cover plate, a funnel-shaped cover element is provided, the air discharge opening of which is at negative pressure.

Weitere Merkmale der Erfindung sind in den Unteransprüchen, der Beschreibung der Figuren und den Figuren selbst dargestellt, wobei bemerkt wird, daß alle Einzelmerkmale und alle Kombinationen von Einzelmerkmalen erfindungswesentlich sind.Further features of the invention are shown in the subclaims, the description of the figures and the figures themselves, it being noted that all individual features and all combinations of individual features are essential to the invention.

In den Figuren ist die Erfindung schematisch anhand eines Ausführungsbeispieles dargestellt, ohne auf dieses beschränkt zu sein. Es stellt dar:

Figur 1
eine Frontansicht des erfindungsgemäßen Rütteltisches,
Figur 2
eine Seitenansicht des Rütteltisches,
Figur 3
eine Draufsicht des Rütteltisches, die im wesentlichen die obere Abdeckplatte und den Auflagetisch sowie die mit diesen zusammenwirkenden Aggregate verdeutlicht,
Figur 4
einen Schnitt gemäß der Linie A-A in Figur 3,
Figur 5
einen Schnitt gemäß der Linie B-B in Figur 3,
Figur 6
einen Schnitt gemäß der Linie C-C in Figur 3, wobei die Öffnung im ersten Anschlag mittels eines Abdichtelementes verschlossen ist,
Figur 7
eine Darstellung gemäß Figur 6, wobei ein die Öffnung durchsetzendes Festhalteelement gezeigt ist,
Figur 8
eine Frontdarstellung gemäß Figur 1 mit geneigtem Auflagetisch.
In the figures, the invention is shown schematically using an exemplary embodiment, without being restricted to this. It shows:
Figure 1
2 shows a front view of the vibrating table according to the invention,
Figure 2
a side view of the vibrating table,
Figure 3
2 shows a plan view of the vibrating table, which essentially illustrates the upper cover plate and the support table, as well as the units interacting with them,
Figure 4
4 shows a section along the line AA in FIG. 3,
Figure 5
4 shows a section along line BB in FIG. 3,
Figure 6
4 shows a section along the line CC in FIG. 3, the opening in the first stop being closed by means of a sealing element,
Figure 7
6 shows a holding element that penetrates the opening,
Figure 8
a front view of Figure 1 with an inclined support table.

Die Figuren 1 und 2 zeigen einen Rütteltisch 1 mit einer auf einem Rütteltischfuß 4 ruhenden Konsole 2 für den Auflagetisch 3 des Rütteltisches 1. Die Konsole 2 ist gabelförmig ausgebildet, mit zwei seitlichen Führungen 6 und einem mittigen Hubzylinder 7. Ein Flanschabschnitt 8 der Konsole 2 nimmt ein um eine Achse 9 schwenkbares Lagerelement 10 auf. Beabstandet zur Achse 9 greift am Lagerelement 10 ein weiterer, hydraulisch wirkender Hubzylinder 11 an, der über einen Ansatz 12 an der Führung 6 gelagert und mit dem Hubzylinder 7 verfahrbar ist. Mit der Bezugsziffer 13 ist die in bekannter Art und Weise ausgebildete Einrichtung zum Erzeugen einer Rüttelbewegung des Auflagetisches 3 bezeichnet. Diese ist um eine senkrecht zur Achse 9 angeordnete Achse 5 schwenkbar gelagert. Zum Verschwenken dient ein weiterer hydraulisch wirkender Hubzylinder 14, der einerseits beabstandet vom Drehpunkt des Auflagetisches 3 an dessen Unterseite, andererseits am Lagerelement 10 angreift. Mittels des Hubzylinders 7 ist damit eine vertikale Bewegung des Auflagetisches 3 möglich, während der Hubzylinder 11 eine Schwenkbewegung des Auflagetisches 3 um die Achse 9 über einen Winkel von 90° in dessen senkrechte Stellung gestattet. Schließlich ermöglicht es der Hubzylinder 14 Schwenkbewegungen des Auflagetisches 3 um die Achse 5 um einen Winkel von mindestens 20° nach beiden Seiten zu bewirken, wie es in Figur 8 für eine Seite beispielhaft gezeigt ist. Die Neigungen des Auflagetisches 3 um die Achsen 5 bzw. 9 können selbstverständlich überlagert erfolgen.Figures 1 and 2 show a vibrating table 1 with one a vibrating table base 4 resting console 2 for the support table 3 of the vibrating table 1. The console 2 is fork-shaped, with two lateral guides 6 and a central lifting cylinder 7. A flange section 8 of the console 2 receives a bearing element 10 which can be pivoted about an axis 9. At a distance from the axis 9, a further, hydraulically acting lifting cylinder 11 acts on the bearing element 10, which is mounted on the guide 6 via an extension 12 and can be moved with the lifting cylinder 7. The reference numeral 13 designates the device, which is designed in a known manner, for generating a shaking movement of the support table 3. This is pivotally mounted about an axis 5 arranged perpendicular to the axis 9. A further hydraulically acting lifting cylinder 14 is used for pivoting, which acts on the one hand at a distance from the pivot point of the support table 3 on its underside and on the other hand on the bearing element 10. A vertical movement of the support table 3 is thus possible by means of the lifting cylinder 7, while the lifting cylinder 11 permits a pivoting movement of the support table 3 about the axis 9 over an angle of 90 ° in its vertical position. Finally, the lifting cylinder 14 enables pivoting movements of the support table 3 about the axis 5 through an angle of at least 20 ° to both sides, as is shown by way of example in FIG. 8 for one side. The inclinations of the support table 3 about the axes 5 and 9 can of course be superimposed.

Auf der Unterseite des Auflagetisches 3 sind seitlich zwei Führungsschienen 15 für einen den Auflagetisch 3 überspannenden, U-förmigen Portalrahmen 16 angeordnet, der in der Ebene des Auflagetisches 3 mittels eines dem Schenkel 17 des Portalrahmens 16 zugeordneten, kolbenstangenlosen Zylinders 18 verfahrbar ist. Zwei seitlich des Auflagetisches 3 angeordnete Zahnriementriebe 19, die mittels einer Gleichlaufwelle 20 miteinander verbunden sind, stellen den Gleichlauf des Portalrahmens 16 sicher. Im Portalrahmen 16 ist eine obere Abdeckplatte 21 parallel zum Auflagetisch 3 beweglich gelagert und mittels eines als Elektromotor mit Getriebeelementen und Rutschkupplung ausgebildeten Antriebsaggregates 22 verschiebbar. Wie darüber hinaus der Darstellung der Figur 3 zu entnehmen ist, weist die obere Abdeckplatte 21 entsprechend dem Auflagetisch 3 Rechteckform auf, wobei deren Längen- und Breitenabmessungen im wesentlichen übereinstimmen. Die obere Abdeckplatte 21 ist hinsichtlich deren Abdeckfläche variabel. Dies wird dadurch erreicht, daß sie aus drei Teilen gebildet ist, nämlich einem T-förmigen, im Portalrahmen 16 gelagerten Basisplattenteil 21a sowie zwei in auseinandergefahrenem Zustand im Bereich des Restquerschnittes des Rechteckes der oberen Abdeckplatte 21 angeordneten weiteren Plattenteilen 21b und 21c, wobei diese im Basisplattenteil 21a aufeinander zu- bzw. voneinander weg verschieblich gelagert sind. Figur 3 verdeutlicht die obere Abdeckplatte 21 bei voneinander weg verfahrenen weiteren Plattenteilen 21b und 21c, das heißt bei maximaler Abdeckfläche der oberen Abdeckplatte 21. Die Abmessungen von Basisplattenteil 21a und weiteren Plattenteilen 21b und 21c sind so bemessen, daß die zwischen den Plattenteilen 21a und 21b bzw. 21a und 21c gebildeten Spalte möglichst gering sind. Auf der Oberseite des Basisplattenteiles 21a sind zwei Pneumatikzylinder 23a und 23b in diesem gelagert, deren Kolbenstangen 24a und 24b an den beiden weiteren Plattenteilen 21b und 21c angreifen.On the underside of the support table 3, two guide rails 15 are arranged laterally for a U-shaped portal frame 16 spanning the support table 3, which can be moved in the plane of the support table 3 by means of a rodless cylinder 18 assigned to the leg 17 of the portal frame 16. Two toothed belt drives 19 arranged on the side of the support table 3, which are connected to one another by means of a synchronous shaft 20, ensure that the portal frame 16 is synchronized. In the portal frame 16, an upper cover plate 21 is movably mounted parallel to the support table 3 and can be displaced by means of a drive unit 22 designed as an electric motor with gear elements and a slip clutch. Like beyond that 3, the upper cover plate 21 has a rectangular shape corresponding to the support table 3, its length and width dimensions essentially matching. The upper cover plate 21 is variable in terms of its cover area. This is achieved in that it is formed from three parts, namely a T-shaped base plate part 21a, which is mounted in the portal frame 16, and two further plate parts 21b and 21c arranged in the expanded state in the region of the residual cross section of the rectangle of the upper cover plate 21, these in the Base plate part 21a are slidably mounted towards or away from each other. FIG. 3 illustrates the upper cover plate 21 when further plate parts 21b and 21c are moved away from one another, that is to say with the maximum cover area of the upper cover plate 21. The dimensions of the base plate part 21a and further plate parts 21b and 21c are dimensioned such that those between the plate parts 21a and 21b or 21a and 21c formed gaps are as small as possible. On the upper side of the base plate part 21a, two pneumatic cylinders 23a and 23b are mounted in it, the piston rods 24a and 24b of which engage the two further plate parts 21b and 21c.

Der erfindungsgemäße Rütteltisch 1 ist zum Rütteln des in Blattlagen vorliegenden Gutes 40 nach zwei Richtungen hin mit drei entsprechenden Seiten des Auflagetisches 3 zugeordneten, seitlichen Anschlägen für das Gut 40 versehen, nämlich einem fest mit einer Längsseite des Auflagetisches 3 verbundenen ersten Anschlag 25, sowie einem zweiten Anschlag 26, der einer Querseite des Auflagetisches 3 zugeordnet ist, ferner einem dritten Anschlag 27, der der anderen Querseite des Auflagetisches 3 zugeordnet ist. Die beiden parallel zueinander angeordneten und im Auflagetisch 3 gelagerten zweiten und dritten Anschläge 26 bzw. 27 sind vertikal zur Auflageebene des Auflagetisches 3 ein- und ausfahrbar, wobei die Antriebe zum Verfahren der Anschläge 26 und 27 in den Figuren nicht gezeigt sind. Der jeweilige Anschlag 26 bzw. 27 weist eine senkrecht zu diesem mittels eines Hubzylinders 28 verfahrbare Klemmplatte 29 für das Gut 40 auf.The vibrating table 1 according to the invention is provided with two corresponding sides of the support table 3 associated with two corresponding sides of the support table 3 for shaking the material 40 present in sheet layers in two directions, namely a first stop 25 firmly connected to a longitudinal side of the support table 3, and one second stop 26, which is assigned to a transverse side of the support table 3, further a third stop 27, which is assigned to the other transverse side of the support table 3. The two second and third stops 26 and 27 arranged parallel to one another and supported in the support table 3 can be moved in and out vertically to the support plane of the support table 3, the drives for moving the stops 26 and 27 not being shown in the figures. The respective stop 26 or 27 has a clamping plate 29 for the good 40 which can be moved perpendicularly thereto by means of a lifting cylinder 28.

Zum Belüften des Gutes während des Rüttelvorganges sind in die drei Anschläge 25, 26 und 27 Blaseinrichtungen integriert, die durch Stabilisierungsdüsen 30 und/oder Auffächerdüsen 31 gebildet sind. Da die Hauptblasrichtung beim Lüften des Gutes durch den langen ersten Anschlag 25 vorgegeben ist, sollte der erste Anschlag 25 sowohl die fest angeordneten Stabilisierungsdüsen 30 als auch die senkrecht zur Oberfläche des Auflagetisches 3 beweglichen Auffächerdüsen 31 aufweisen, wobei insbesondere die Stabilisierungsdüsen 30 in den den Anschlägen 26 und 27 zugewandten Endbereichen des Anschlages 25 angeordnet sind. Bei den beiden, den Querseiten des Auflagetisches 3 zugeordneten Anschlägen 26 und 27 wird es als ausreichend angesehen, wenn in diese nur die fest angeordneten Stabilisierungsdüsen 30 integriert sind. Der Luftaustrittsquerschnitt der Austrittsöffnungen der jeweiligen Stabilisierungsdüse 30 ist verstellbar und/oder es sind entsprechend der Einlagehöhe des Gutes 40 die Austrittsöffnungen der jeweiligen Stabilisierungsdüse 30 in derem oberen oder unteren Bereich verschließbar und/oder es sind einzelne Stabilisierungsdüsen 30 vollständig absperrbar. Diese Details sind in den Zeichnungen nicht verdeutlicht. Die Auffächerdüsen 31 können mit hin- und herbewegbaren Schiebern mit Austrittsöffnungen versehen sein, die in ihrer Höhe begrenzt sind. Auch dieses Detail ist in den Zeichnungen nicht dargestellt.To vent the material during the shaking process, blowing devices are integrated into the three stops 25, 26 and 27, which are formed by stabilizing nozzles 30 and / or fan nozzles 31. Since the main blowing direction is predetermined by the long first stop 25 when the goods are released, the first stop 25 should have both the fixedly arranged stabilizing nozzles 30 and the fan nozzles 31 movable perpendicular to the surface of the support table 3, in particular the stabilizing nozzles 30 in the stops 26 and 27 facing end regions of the stop 25 are arranged. In the case of the two stops 26 and 27 assigned to the transverse sides of the support table 3, it is considered sufficient if only the fixedly arranged stabilizing nozzles 30 are integrated into them. The air outlet cross section of the outlet openings of the respective stabilizing nozzle 30 is adjustable and / or the outlet openings of the respective stabilizing nozzle 30 can be closed in the upper or lower region thereof according to the insertion height of the goods 40 and / or individual stabilizing nozzles 30 can be completely blocked. These details are not shown in the drawings. The fan-out nozzles 31 can be provided with reciprocating slides with outlet openings which are limited in height. This detail is also not shown in the drawings.

Der in den Figuren gezeigte Rütteltisch kann schließlich mit zwei seitlichen Abdeckplatten 33 und 34 versehen werden, die den Plattenteilen 21c bzw. 21b der oberen Abdeckplatte 21 zugeordnet und von diesen demontierbar sind. Gezeigt ist in den Figuren nur die dem Plattenteil 21c zugeordnete, für das Rütteln in die rechte Tischecke erforderliche seitliche Abdeckplatte 33. Für den Fall des Rüttelns in die linke Tischecke wäre statt dessen symmetrisch zur vertikal zur Oberfläche des Auflagetisches 3 verlaufenden Symmetrieebene 32 am Plattenteil 21b die andere Abdeckplatte 34, wie in Figur 1 strichliert für deren angehobene Position verdeutlicht, zu montieren. Die jeweilige seitliche Abdeckplatte 33 bzw. 34 wird damit immer an demjenigen Plattenteil 21b bzw. 21c montiert, das derjenigen Ecke zwischen den Anschlägen 25 und 26 bzw. 25 und 27, in die das Gut 40 gerüttelt wird, gegenüberliegt. Wie der Figur 1 zu entnehmen ist die seitliche Abdeckplatte 33 senkrecht zum ersten seitlichen Anschlag 25 anordbar und mittels eines elektrischen Stellantriebes 35, der im Plattenteil 21c gelagert ist, senkrecht zur Ebene des Plattenteiles 21c verfahrbar. Die seitliche Abdeckplatte 33 ist damit dem Anschlag 27 und die seitliche Abdeckplatte 34 den seitlichen Anschlag 26 zugeordnet, für letztere ist ein entsprechender, dem Plattenteil 21b zugeordneter Stellantrieb vorgesehen.The vibrating table shown in the figures can finally be provided with two side cover plates 33 and 34 which are assigned to the plate parts 21c and 21b of the upper cover plate 21 and can be removed therefrom. Shown in the figures is only the side cover plate 33 assigned to the plate part 21c and required for shaking in the right-hand corner of the table. In the event of shaking in the left-hand corner of the table, the plane of symmetry 32 on the plate part 21b that runs vertically to the surface of the support table 3 would instead be used to mount the other cover plate 34, as shown in broken lines in FIG. 1, for its raised position. The respective side cover plate 33 or 34 is thus always mounted on that plate part 21b or 21c that the corner between the Stops 25 and 26 or 25 and 27, in which the material 40 is shaken, is opposite. As can be seen in FIG. 1, the side cover plate 33 can be arranged perpendicular to the first lateral stop 25 and can be moved perpendicular to the plane of the plate part 21c by means of an electric actuator 35 which is mounted in the plate part 21c. The side cover plate 33 is thus assigned to the stop 27 and the side cover plate 34 to the side stop 26, for the latter a corresponding actuator assigned to the plate part 21b is provided.

Der insoweit vom grundsätzlichen Aufbau her beschriebene Rütteltisch arbeit wie folgt:
Ausgehend von der Position nach den Figuren 1 und 2, jedoch bei der sich aus der Figur 2 ergebenden strichpunktierten Stellung des Portalrahmens 16, wird das zu rüttelnde Gut auf den in horizontaler Stellung befindlichen Auflagetisch 3 gegeben. Soll in die linke Ecke 36 des Auflagetisches 3 gerüttelt werden, ist die seitliche Abdeckplatte 34 demontiert, so daß erfindungsgemäß nur die andere seitliche Abdeckplatte 33 zum Einsatz kommt. Es wird nach dem Aufbringen des zu rüttelnden Gutes auf den Auflagetisch 3 die obere Abdeckplatte 31 über das zu rüttelnde Gut 40 gefahren und dann der der Ecke 36 zugeordnete Anschlag 26 in die strichpunktiert dargestellte Position vollständig ausgefahren. Aufgrund des stationären Anschlages 25 und des ausgefahrenen Anschlages 26 könnte bereits der Auflagetisch 3 in die in Figur 8 gezeigte, seitlich geneigte Position (Neigung sowohl in Richtung des Anschlages 25 als auch in Richtung des Anschlages 26) überführt werden, so daß sich das auf dem Auflagetisch 3 aufliegende, aus den einzelnen Blattlagen gebildete Gut 40 beim Einschalten des Rütteltisches an den beiden genannten Anschlägen ausrichtet. Bei einer solchen Verfahrensweise würde der erfindungsgemäße Rütteltisch wie übliche Rütteltische funktionieren.
The vibrating table described in terms of the basic structure works as follows:
Starting from the position according to FIGS. 1 and 2, but with the dash-dotted position of the portal frame 16 resulting from FIG. 2, the material to be shaken is placed on the support table 3 which is in the horizontal position. If the left corner 36 of the support table 3 is to be shaken, the side cover plate 34 is removed, so that according to the invention only the other side cover plate 33 is used. After the material to be shaken has been applied to the support table 3, the upper cover plate 31 is moved over the material 40 to be shaken and then the stop 26 assigned to the corner 36 is completely extended into the position shown in broken lines. Due to the stationary stop 25 and the extended stop 26, the support table 3 could already be transferred to the laterally inclined position shown in FIG. 8 (inclination both in the direction of the stop 25 and in the direction of the stop 26), so that this is on the Aligning the support table 3, good 40 formed from the individual sheet layers, when the vibrating table is switched on at the two abovementioned stops. With such a procedure, the vibrating table according to the invention would function like conventional vibrating tables.

Erfindungsgemäß ist nun vorgesehen, daß entweder in der teilweise geneigten Position des Auflagetisches 3 oder in der Ausgangsposition des Auflagetisches 3, gemäß der Darstellung in den Figuren 1 und 2, die obere Abdeckplatte 21 mittels des Antriebsaggregates 22 in Richtung des Gutes 40 abgesenkt wird, wobei ein im Basisplattenteil 21a gelagertes, nur in Figur 2 gezeigtes, beweglich gelagertes Abtastelement 41 die Position der obersten Blattlage des Gutes 40 abtastet und das Antriebsaggregat 22 so steuert, daß dieses die obere Abdeckplatte 21 in einem vorbestimmten Abstand zur obersten Blattlage des Gutes 40 positioniert.According to the invention, it is now provided that either in the partially inclined position of the support table 3 or in the starting position of the support table 3, as shown in FIGS. 1 and 2, the upper cover plate 21 is lowered in the direction of the goods 40 by means of the drive unit 22, a movably mounted scanning element 41 mounted in the base plate part 21a and only shown in FIG scans the uppermost sheet layer of the good 40 and controls the drive unit 22 so that it positions the upper cover plate 21 at a predetermined distance from the uppermost sheet layer of the good 40.

Mit der dem seitlichen Anschlag 26 gegenüberliegenden Seite des Blattgutstapels 40, der insbesondere aus einzelnen Bögen aus Papier, Pappe, Folie usw. gebildet ist, wirkt die seitliche Abdeckplatte 33 zusammen, die mittels des elektrischen Stellantriebes 35 auf die Oberfläche des Auflagetisches 3 abgesenkt wird, wie es in Figur 8 gezeigt ist. Zuvor ist durch Beaufschlagung des Plattenteiles 21c mittels des zugeordneten Pneumatikzylinders 23a, soweit erforderlich, die Längsabmessung der oberen Abdeckplatte 21 im Bereich der beiden Plattenteile 21b und 21c auf die Längsabmessung des zu rüttelnden Gutes eingestellt worden, das heißt, es ist das Plattenteil 21c so weit verfahren, daß die seitliche Abdeckplatte 33 benachbart zur zugeordneten Stapelseitenfläche positioniert ist. Im Ergebnis ist damit der zu rüttelnde Stapel bis auf die dem Anschlag 25 gegenüberliegende Seite des Auflagetisches 3 vollständig, das heißt auf fünf Seiten geschlossen, wobei der Belüftungsraum je nach Formatgröße und Einlagehöhe des zu rüttelnden Gutes 40 automatisch einstellbar ist, um Blasluftverluste zu minimieren.The side cover plate 33, which is lowered onto the surface of the support table 3 by means of the electric actuator 35, interacts with the side of the stack of sheets 40 opposite the side stop 26, which is formed in particular from individual sheets of paper, cardboard, foil, etc. as shown in Figure 8. Previously, by acting on the plate part 21c by means of the associated pneumatic cylinder 23a, the longitudinal dimension of the upper cover plate 21 in the area of the two plate parts 21b and 21c has been adjusted to the longitudinal dimension of the material to be shaken, that is, the plate part 21c is so far proceed so that the side cover plate 33 is positioned adjacent to the associated stack side surface. As a result, the stack to be shaken is complete except for the side of the support table 3 opposite the stop 25, that is to say closed on five sides, the ventilation space being automatically adjustable depending on the format size and the insertion height of the goods 40 to be shaken in order to minimize blown air losses.

Beim Aktivieren des Rüttelmechanismus und der Stabilisierungsdüsen 30 sowie der Auffächerdüsen 31 in den Anschlägen 25 und 26 (die Düsen im nicht benötigten Anschlag 27 werden dabei nicht beaufschlagt), sowie Einstellen der gewünschten Neigung des Auflagetisches 3 bewirkt das Luftpolster zwischen den einzelnen Blattlagen des Gutes 40, daß dieses zwischen dem Auflagetisch 3 und der oberen Abdeckplatte 21 schwimmen kann. Die Stabilisierungsdüsen 30 sorgen für eine Belüftung des Gutes 40 über dessen volle Breite und verhindern, daß der Stapel sich in eine S-Form legt. Die beweglichen Auffächerdüsen 31 bewirken ein kurzzeitiges Abheben des soeben belüfteten Stapelbereiches von den zugeordneten Anschlägen 25 und 26. Hinsichtlich der seitlichen Abdeckplatte 33 ist anzustreben, daß bei deren Absenken auf die Oberfläche des Auflagetisches 3 zunächst ein geringer Spalt verbleibt, und diese Abdeckplatte 33 erst nach kurzer Rüttel- und Belüftungszeit bis zum Stapel langsam und mit geringem Druck beigezogen wird. Diese Bewegung kann durch Beaufschlagen des Pneumatikzylinders 23a im Sinne einer Formatverkleinerung der oberen Abdeckplatte 21 erfolgen. Die seitliche Abdeckplatte 33 und bei entsprechendem Einsatz selbstverständlich auch die seitliche Abdeckplatte 34 dienen damit dem Zweck, das seitliche Entweichen der Blasluft zu verhindern und darüber hinaus das Ausrichten des Gutes zu unterstützen. Zusätzlich können weitere, nicht dargestellte Luftdüsen im Basisplattenteil 21a vorgesehen sein, die beim Rütteln ein Luftpolster zwischen dem zu rüttelnden Gut 40 und der oberen Abdeckplatte 21 bilden. In der Darstellung der Figur 3 sind ferner zwei auf der dem Anschlag 25 abgewandten Seite der oberen Abdeckplatte 21 in derem Basisplattenteil 21a gelagerte Niederhalter 37 verdeutlicht, die dem Zweck dienen, das zu rüttelnde Gut am Auflagetisch 3 festzuklemmen. Der Spalt von etwa 20 bis 40 mm, der zwischen der oberen Abdeckplatte 21 und dem zu rüttelnden Stapel 3 entsteht, fördert beim Belüften das Trennen und das "Aufschwimmen" (Ausbreiten) der einzelnen Blattlagen. Der Papierstapel wird mit einem geringen einstellbaren Spalt zwischen den Anschlägen 25 und 26 festgehalten. Es soll verhindert werden, daß einzelne vorstehende Blattlagen umkanten. Zur Optimierung des Rüttelergebnisses können schließlich noch auf der dem Anschlag 25 abgewandten Seite des Basisplattenteiles 21a in geringem Abstand zur Symmetrieebene 32 in Richtung des Anschlages 25 verstellbare Rüttelhilfsanschläge 38, insbesondere zwei Rüttelhilfsanschläge vorgesehen sein. Diese wirken damit mit der dem Anschlag 25 abgewandten Stapelseite zusammen. Die Rüttelhilfsanschläge 38 sind gleichfalls auf die Formatgröße und Einlegehöhe des zu rüttelnden Gutes 40 einstellbar. Nach kurzer Belüftungs- und Rüttelzeit werden die Anschläge 38 ca. 20 mm beabstandet zum Stapel gesenkt und über einen Hilfsantrieb langsam mit geringem Druck auf die eingestellte Formatgröße zum Stapel beigezogen. Hierbei werden die vorstehenden Blattlagen in den zu belüftenden Stapel hineingeschoben.When the vibrating mechanism and the stabilizing nozzles 30 and the fan nozzles 31 in the stops 25 and 26 are activated (the nozzles in the stop 27 that is not required are not acted upon), and the desired inclination of the support table 3 is set, the air cushion between the individual sheet layers of the goods 40 that this can swim between the support table 3 and the upper cover plate 21. The stabilizing nozzles 30 provide ventilation of the goods 40 over their full width and prevent the stack from becoming S-shaped sets. The movable fan nozzles 31 cause the stack area just ventilated to be lifted briefly from the associated stops 25 and 26. With regard to the side cover plate 33, the aim is that when it is lowered onto the surface of the support table 3, a small gap initially remains, and this cover plate 33 only after Short vibration and ventilation time until the stack is drawn in slowly and with low pressure. This movement can take place by acting on the pneumatic cylinder 23a in the sense of reducing the size of the upper cover plate 21. The side cover plate 33 and, if used appropriately, of course also the side cover plate 34 thus serve the purpose of preventing the lateral escape of the blown air and also of supporting the alignment of the goods. In addition, further air nozzles, not shown, can be provided in the base plate part 21a, which form an air cushion between the material 40 to be shaken and the upper cover plate 21 when shaken. In the illustration in FIG. 3, two hold-downs 37, which are mounted on the side of the upper cover plate 21 facing away from the stop 25 in the base plate part 21 a, are also used, which serve the purpose of clamping the material to be shaken on the support table 3. The gap of about 20 to 40 mm, which arises between the upper cover plate 21 and the stack 3 to be shaken, promotes the separation and the "floating" (spreading out) of the individual sheet layers during ventilation. The paper stack is held in place with a small adjustable gap between the stops 25 and 26. It should be prevented that individual sheet layers projecting over. To optimize the vibrating result, vibrating auxiliary stops 38, in particular two vibrating auxiliary stops, can finally be provided on the side of the base plate part 21a facing away from the stop 25 at a short distance from the plane of symmetry 32 in the direction of the stop 25. These thus cooperate with the stack side facing away from the stop 25. The auxiliary vibrating stops 38 can also be adjusted to the format size and insertion height of the goods 40 to be vibrated. After a short ventilation and shaking time, the stops 38 are lowered approx. 20 mm apart from the stack and slowly with a small auxiliary drive Printing on the set format size included in the stack. Here, the above sheet layers are pushed into the stack to be ventilated.

Soll nach dem Rütteln einer ersten Blattlage und Überführen des Auflagetisches 3 in dessen horizontale Stellung eine weitere Blattlage auf dieser ersten Blattlage im Rütteltisch gerüttelt werden, kommt bei der Ausführungsform gemäß der Figurendarstellung ein in der Darstellung der Figur 7 näher gezeigtes, mittels eines Pneumatikzylinders 39 betätigbares Festhalteelement 42 zum Einsatz, das durch eine Öffnung 43 im Anschlag 25 hindurchsteckbar und auf die untere Stapellage auflegbar ist, um diese am Auflagetisch 3 festzuklemmen, wenn der Rütteltisch mit einer weiteren Stapelgutlage beladen wird. Um Blasluftverluste im Bereich der Öffnung 43 zu vermeiden, ist ein Abdichtelement 44 vorgesehen, das in der Ruhestellung des Festhalteelementes 42, das heißt beim Rütteln und Belüften die Öffnung 43 im Anschlag 25 verschließt.If, after shaking a first sheet layer and transferring the support table 3 into its horizontal position, a further sheet layer is to be shaken on this first sheet layer in the vibrating table, in the embodiment according to the figure representation, one can be actuated by means of a pneumatic cylinder 39 which is shown in more detail in the representation of FIG Retaining element 42 for use, which can be inserted through an opening 43 in the stop 25 and placed on the lower stacking layer in order to clamp it on the support table 3 when the vibrating table is loaded with a further stacked material layer. In order to avoid blown air losses in the region of the opening 43, a sealing element 44 is provided, which closes the opening 43 in the stop 25 in the rest position of the holding element 42, that is to say when shaking and venting.

Insbesondere die Figuren 3 bis 5 verdeutlichen, daß die Blasluft über einen dem jeweiligen Anschlag 25, 26 bzw. 27 zugeordneten Verteilerkasten 45 den Stabilisierungsdüsen 30 bzw. Auffächerdüsen 31 zugeführt wird. Die Erfindung ist dabei nicht darauf beschränkt, daß durch die Blasdüsen reine Luft strömt. Ist beispielsweise blättriges Gut zu rütteln, das sich statisch auflädt, sollte durch die Blasdüsen ionisierte Luft zugeführt werden.FIGS. 3 to 5 in particular make it clear that the blown air is fed to the stabilizing nozzles 30 or fan nozzles 31 via a distributor box 45 assigned to the respective stop 25, 26 or 27. The invention is not limited to the fact that pure air flows through the blowing nozzles. If, for example, leafy material has to be shaken that is statically charged, ionized air should be supplied through the blowing nozzles.

Nach dem Rüttelvorgang wird der Auflagetisch 3 wieder in die in den Figuren 1 und 2 gezeigte Position zurückbewegt, das heißt auch der Portal der Rahmen 16 in die in Figur 2 strichpunktiert verdeutlichte Stellung. Es wird die dem Anschlag 26 zugeordnete Klemmplatte 29 über das zugewandte Ende des Stapels 40 gefahren und beim anschließenden Absenken des Anschlags 26 der Stapel in diesem Bereich geklemmt. Mittels einer nicht gezeigten Luftausstreichvorrichtung kann dann die Luft aus dem Stapel ausgepreßt werden, hierzu wird beispielsweise eine im Portalrahmen gelagerte, parallel zum Anschlag 26 angeordnete Rolle, vom Anschlag 26 ausgehend, über die Oberfläche des Stapels gerollt. Schließlich kann das gerüttelte Gut dann zu einem nicht dargestellten Aufnahmetisch übergeschoben oder einer Weiterverarbeitungsstation, insbesondere einer Schneidemaschine zugeführt werden.After the shaking process, the support table 3 is moved back into the position shown in FIGS. 1 and 2, that is to say also the portal of the frames 16 into the position shown in broken lines in FIG. The clamping plate 29 assigned to the stop 26 is moved over the facing end of the stack 40 and the stack is clamped in this area when the stop 26 is subsequently lowered. The air can then be pressed out of the stack by means of an air spreading device, not shown, for this purpose, for example, a roller mounted in the portal frame and arranged parallel to the stop 26 is removed from the stop 26 starting, rolled over the surface of the stack. Finally, the shaken material can then be pushed over to a receiving table (not shown) or fed to a further processing station, in particular a cutting machine.

Claims (21)

  1. Vibrating table for vibrating goods (40) present in the form of sheets, having at least two lateral stops (25, 26, 27), assigned to adjacent sides of a supporting table (3), for the goods (40), and having a portal frame (16) which can be displaced in the plane of the supporting table (3), it being possible for the supporting table (3), which can be made to vibrate, to be inclined out of a horizontal position in the direction of the two stops (25, 26, 27), characterized by
    - an (upper) covering plate (21) which is mounted in the portal frame (16), is arranged parallel to the surface of the supporting table (3) and is intended for receiving the goods (40) between it and the supporting table (3),
    - means (22) which are mounted in the portal frame (16) and are intended for displacing the upper covering plate (21) perpendicularly with respect to the surface of the supporting table (3),
    - blowing devices (30, 31) for blowing in air between the sheets, the blowing devices (30, 31) being integrated at least into a first (25) of the lateral stops (25, 26, 27),
    - at least one lateral covering plate (33 or 34) for covering the gap formed between the supporting table (3) and the upper covering plate (21), it being possible for said covering plate (33 or 34) to be arranged perpendicularly with respect to the first stop (25), and provision being made for means (35) for displacing said lateral covering plate (33 or 34) towards the second stop (26 or 27) and away from the same, said stop being arranged parallel to said covering plate.
  2. Vibrating table according to Claim 1, characterized in that the upper covering plate (21) is designed in a number of parts and can be moved apart or together in the direction of two defined, mutually opposite sides.
  3. Vibrating table according to Claim 1 or 2, characterized in that arranged adjacent to the two end regions of the first stop (25), perpendicularly with respect to the latter, is the second stop (26) and a third stop (27) for the goods (40), it being possible for said stops to be arranged parallel to one another and displaced perpendicularly with respect to the plane of the supporting table (3).
  4. Vibrating table according to Claim 3, characterized in that the second stop (26) and third stop (27) are each provided, in the region of the respective upper stop end, with a clamping plate (29) which extends perpendicularly with respect to the stop (26, 27), is intended for the goods (40) and can be displaced in its plate plane.
  5. Vibrating table according to one of Claims 1 to 4, characterized in that the second stop (26) and/or the third stop (27) is or are provided with blowing devices (30) which are integrated in said stops and are intended for blowing in air between the sheets.
  6. Vibrating table according to one of Claims 1 to 5, characterized in that the first stop (25) is assigned to the longitudinal side of the rectangular supporting table (3), and the second stop (26) and/or the third stop (27) is or are assigned to the respective transverse side of the supporting table (3).
  7. Vibrating table according to one of Claims 1 to 6, characterized in that the blowing devices (30, 31) of the first stop (25) exhibit fixedly arranged stabilizing nozzles (30) and fanning-out nozzles (31) which can be moved perpendicularly with respect to the surface of the supporting table (3), with stabilizing nozzles (30) in the end regions of the first stop (25).
  8. Vibrating table according to one of Claims 1 to 7, characterized in that the blowing devices of the second stop (26) and third stop (27) exhibit fixedly arranged stabilizing nozzles (30).
  9. Vibrating table according to Claim 7 or 8, characterized in that the air-outlet cross-section of the outlet openings of the respective stabilizing nozzle (30) can be adjusted and/or, in accordance with the charging height of the goods (40), outlet openings of the respective stabilizing nozzle (30) in the upper or lower regions of said stabilizing nozzle (30) can be closed and/or individual stabilizing nozzles (30) can be fully shut off.
  10. Vibrating table according to one of Claims 7 to 9, characterized in that the fanning-out nozzles (31) exhibit lines, which can be moved back and forth, with outlet openings, which are restricted in their height.
  11. Vibrating table according to one of Claims 1 to 10, characterized in that provision is made for a power-actuable securing element (42) for clamping a sheet, which securing element passes through an opening (43) in the first stop (25) for clamping purposes, a sealing element (44) closing the opening (43) in the first stop (25) when the securing element (42) is in the rest position.
  12. Vibrating table according to one of Claims 1 to 11, characterized in that the rectangular, upper covering plate (21) is designed in three parts, having a T-shaped basic plate part (21a) mounted in the portal frame (16), and having two further plate parts (21b, 21c) which, in the state in which they are moved apart, are arranged in the region of the residual cross-section of the rectangle, the two further plate parts (21b, 21c) being mounted in the basic plate part (21a) such that they can be displaced towards one another and away from one another.
  13. Vibrating table according to Claim 12, characterized in that, on the upper side of the basic plate part (21a), two pneumatic cylinders (23a, 23b) are mounted in said basic plate part, the piston rods (24a, 24b) of said cylinders acting on the further plate parts (21b, 21c)
  14. Vibrating table according to one of Claims 1 to 13, characterized in that the at least one, first lateral covering plate (34) is arranged in the region of the second stop (26) and a further, correspondingly configured and displaceable, second covering plate (33) is arranged parallel to the first covering plate (34), in the region of the third stop (27).
  15. Vibrating table according to Claim 14, characterized in that one lateral covering plate (34) is mounted in one plate part (21b) and the other lateral covering plate (33) is mounted in the other plate part (21c).
  16. Vibrating table according to one of Claims 1 to 15, characterized in that provision is made for means (35) for displacing the first (34) and/or second lateral covering plate (33) perpendicularly with respect to the surface of the supporting table (3).
  17. Vibrating table according to one of Claims 1 to 16, characterized in that a plurality of holding-down devices (37) for the goods (40) are integrated in the upper covering plate (21), on the side remote from the first stop (25).
  18. Vibrating table according to Claim 17, characterized in that the basic plate part (21a) exhibits the holding-down devices (37), in particular two holding-down devices (37).
  19. Vibrating table according to one of Claims 1 to 18, characterized in that further blowing devices for producing an air cushion between the upper covering plate (21) and the goods (40) are integrated in the upper covering plate (21), in particular in the region of the basic plate part (21a).
  20. Vibrating table according to one of Claims 1 to 19, characterized in that provision is made in the upper covering plate (21), in particular in the region of the basic plate part (21a), in that region of the supporting table (3) which is remote from the first stop (25), for vibration-aiding stops (38) which can be adjusted in the direction of the first stop (25).
  21. Vibrating table according to one of Claims 1 to 20, characterized in that arranged parallel to, and at a distance from, the first stop (25) is a third, lateral covering plate which can be displaced in its plate plane and perpendicularly thereto, the third covering plate exhibiting at least one air-discharge opening.
EP94102270A 1993-03-09 1994-02-15 Vibrating table Expired - Lifetime EP0614840B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4307361 1993-03-09
DE4307361A DE4307361A1 (en) 1993-03-09 1993-03-09 Vibrating table

Publications (2)

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EP0614840A1 EP0614840A1 (en) 1994-09-14
EP0614840B1 true EP0614840B1 (en) 1995-10-18

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EP94102270A Expired - Lifetime EP0614840B1 (en) 1993-03-09 1994-02-15 Vibrating table

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US (1) US5429475A (en)
EP (1) EP0614840B1 (en)
JP (1) JPH06298440A (en)
DE (2) DE4307361A1 (en)
ES (1) ES2081221T3 (en)

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DE102020105184A1 (en) 2020-02-27 2021-09-02 Koenig & Bauer Ag Substrate handling system with a sheet processing machine and at least one alignment device and a method for aligning and / or loosening at least a partial stack of sheets
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Also Published As

Publication number Publication date
JPH06298440A (en) 1994-10-25
US5429475A (en) 1995-07-04
EP0614840A1 (en) 1994-09-14
DE4307361A1 (en) 1994-09-15
DE59400030D1 (en) 1995-11-23
ES2081221T3 (en) 1996-02-16

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