US20090290969A1 - Rotary lifting table - Google Patents
Rotary lifting table Download PDFInfo
- Publication number
- US20090290969A1 US20090290969A1 US12/466,147 US46614709A US2009290969A1 US 20090290969 A1 US20090290969 A1 US 20090290969A1 US 46614709 A US46614709 A US 46614709A US 2009290969 A1 US2009290969 A1 US 2009290969A1
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- US
- United States
- Prior art keywords
- lifting table
- rotary lifting
- plate
- rotary
- sliding 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/30—Arrangements for removing completed piles
- B65H31/3081—Arrangements for removing completed piles by acting on edge of the pile for moving it along a surface, e.g. by pushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/244—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning them about an axis substantially perpendicular to the conveying plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/42—Piling, depiling, handling piles
- B65H2301/422—Handling piles, sets or stacks of articles
- B65H2301/4226—Delivering, advancing piles
- B65H2301/42266—Delivering, advancing piles by acting on edge of the pile for moving it along a surface, e.g. pushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/30—Supports; Subassemblies; Mountings thereof
- B65H2402/35—Supports; Subassemblies; Mountings thereof rotating around an axis
- B65H2402/351—Turntables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
- B65H2406/113—Details of the part distributing the air cushion
- B65H2406/1132—Multiple nozzles arrangement
Definitions
- the present invention relates to a rotary lifting table according to the preamble of claim 1 .
- Rotary lifting tables for processing planar articles, in particular printed products, such as printed sheets, newspapers, magazines, etc. are generally known. They are equipped with a rotatable and/or liftable and lowerable rotary lifting table plate, on which or above which the planar articles come to lie. Rotary lifting tables have as a rule associated ejection means, by means of which the planar articles lying on the rotary lifting table plate can be pushed out in a selected ejection direction.
- the rotatability of the rotary lifting table plate is advantageous in particular when forming stacks of folded printed products.
- partial stacks rotated relative to one another in each case by 180° relative to a rotation axis oriented at right angles to the rotary lifting table plate are alternately arranged in layers one above the other.
- thicker regions on the fold side and thinner regions of the free side edges of printed products of successive partial stacks in each case come to lie alternately one above the other, such that differences in height of the individual partial stacks on account of their different thicknesses in certain regions are compensated for.
- Rotary lifting table plates are preferably liftable and lowerable in order to specifically reduce, for example, drop heights for printed products or partial stacks formed therefrom or, for the purpose of compressing stacks, in order to be able to press said stacks against pressing elements arranged above the rotary lifting table plate.
- the claimed rotary lifting table described below can also be used in a completely analogous manner with restricted functionality, that is to say when used as a rotary table or lifting table, or even only as a stacking table.
- a rotary lifting table for supporting printed products is described, for example, in EP-A-1852379.
- a rotary lifting table plate is arranged on a rotary lifting cylinder, said rotary lifting table plate being equipped on two opposite sides with ejection devices which have ejection means for ejecting the printed products arranged in a stack.
- a movement, displacing the printed products, of the ejection means over the rotary lifting table plate defines an ejection device in this case.
- the rotary lifting table plate has a supporting surface arched convexly upward and having a transverse ridge region, the longitudinal extent of which runs at least virtually at right angles to the ejection direction.
- the planar articles lying one above the other in the stack are adapted to the arched supporting surface on account of their sheet-like formation and their dead weight and give the stack increased stability due to their profiling.
- the rotary lifting table according to the invention is equipped with a rotary lifting table plate for supporting planar articles, in particular printed products.
- a stacking shaft is bounded at the bottom at least partly by the rotary lifting table plate, said stacking shaft being defined by two opposite ejection devices, and the planar articles being collected in said stacking shaft in order to form a stack.
- the ejection devices by means of which the stacked planar articles can be removed in at least one ejection direction, are mounted on a turntable connected to the rotary lifting table plate in a rotationally fixed manner.
- the rotary lifting table is equipped with at least one sliding plate which has air discharge openings.
- low-friction sliding from the stacking shaft in the ejection direction is made possible by air being forced from the air discharge nozzles, such that an air cushion is formed between the lowermost planar article of the stack and the sliding plate. Due to the low-friction sliding from the stacking shaft, there is less risk of the planar articles being damaged or of the stack being deformed or collapsing. At the same time, a lower expenditure of force is required by the ejection devices when pushing the stack out of the stack space.
- the rotary lifting table plate engages in the sliding plate during the ejection of the stack.
- the sliding plate is fixed on the turntable.
- FIG. 1 shows a rotary lifting table according to the invention in a side view with partial sectional illustration, having a rotary lifting table plate in a lowered and a raised position (dot-dash line) and laterally arranged sliding plates;
- FIG. 2 shows, in a plan view, the rotary lifting table shown in FIG. 1 , in a basic rotary position with the laterally arranged sliding plates and assigned outfeed conveyors;
- FIG. 3 shows, in a plan view, the rotary lifting table shown in FIG. 1 and FIG. 2 , in an end rotary position.
- the rotary lifting table 10 which is intended for planar articles 12 , in particular for printed products, such as magazines, newspapers, paper sheets, etc., has a rotary lifting table plate 14 for supporting the planar articles 12 , a stacking shaft 16 being bounded at least partly at the bottom by said rotary lifting table plate 14 .
- the rotary lifting table plate 14 is shown in FIG. 1 in a lowered basic lifting position and in a raised position (dot-dash lines).
- the rotary lifting table plate 14 is mounted centrally on a rotary spindle device 18 which ensures the liftability and lowerability of the rotary lifting table plate 14 .
- the rotary spindle device 18 is part of a lifting means which can preferably be operated electrically, hydraulically or pneumatically.
- the stacking shaft 16 is defined by two ejection devices 20 which are located opposite one another and of which only one can be seen in FIG. 1 .
- the ejection devices 20 are described in detail, for example, in EP-A-1445224. They are equipped with ejection means which are fastened to transport means 22 and are in the form of angle profiles 24 .
- the angle profiles 24 define the stacking shaft 16 laterally and permit the spatially defined formation of stacks of planar articles 12 .
- the angle profiles 24 are moved in the ejection directions A, A′, likewise defined by the ejection devices 20 , and the stacks are pushed to assigned conveyors, in particular outfeed conveyors 28 , in a sliding manner via sliding plates 26 designed according to the invention.
- a section through one of the sliding plates 26 is shown in FIG. 1 in the partial sectional illustration.
- the sliding plates 26 are fixedly arranged on a turntable 30 which rotates with the rotary lifting table plate 14 . They have a top sliding surface 32 with air discharge openings 34 , from which pressurized air can escape, such that, when a stack of planar articles 12 is being pushed out, an air cushion forms between the lowermost planar article 12 of the stack and the sliding surface 32 .
- the stack of planar articles 12 which is “floating” on this air cushion is pushed in one of the ejection directions A, A′ to the respective outfeed conveyor 28 for ejecting by the angle profiles 24 of the ejection devices 20 .
- the sliding plates 26 have a cavity 36 , to which the pressurized air is directed via air feed connections 38 , said pressurized air then discharging from the cavity 36 through the air discharge openings 34 .
- the air discharge openings 34 can preferably widen from the cavity 36 in the direction of the top sliding surface 32 .
- the cross sections of the air discharge openings 34 may of course be adapted to the respective application.
- the air feed connections 38 are fluidically connected to a reservoir (not depicted) of pressurized air via air feed lines 40 , which are shown by dashed lines in FIG. 1 .
- the two air feed connections 38 of the two sliding plates 26 are connected to one another via a T piece, and a common air feed line 40 A which is directed along the rotary spindle device 18 enters a movable trailing cable 42 via an end arranged fixedly relative to the turntable 30 on the side of the rotary lifting table.
- the preferably flexible common air feed line 40 A is directed to a pressure-regulating device 44 , shown in FIG. 2 and FIG. 3 , and is connected via the latter to the reservoir.
- the pressure-regulating device 44 forms a control device for establishing the pressure of the air escaping from the air discharge openings 34 of the sliding plates 26 .
- the air pressure is in this case preferably established as a function of the weight of the supported planar articles and/or of the rotary/lifting state of the rotary lifting table plate 14 . It may be noted at this point that the air medium may of course also be replaced by another gaseous medium.
- the essentially circular-disk-shaped turntable 30 is rotatably mounted on a table frame 50 via a bell-shaped support 46 by means of a ball bearing 48 .
- the rotary spindle device 18 which extends essentially at right angles to the turntable 30 , is arranged coaxially in the interior of the bell-shaped support 46 .
- a rotary movement of the turntable 30 which is connected to the rotary lifting table plate 14 in a rotationally fixed manner, is driven by a belt drive (not depicted), the belt or toothed belt of which rests on the outer circumferential surface of a hub element 52 of the bell-shaped support 46 .
- the belt drive is operated, for example, by means of an electric motor (not depicted).
- the table frame 50 is connected in a rotationally fixed manner to a rotary lifting table housing 54 , which has a fixed base plate 56 on the top side.
- the stacking shaft 16 formed by the ejection devices 20 , and the ejection directions A, A′, in which the associated outfeed conveyors 28 follow, can be seen especially well in the plan view in FIG. 2 of the rotary lifting table 10 according to the invention.
- tongue-like extensions 58 of the rotary lifting table plate 14 which are formed thereon on the wide side, are in engagement with associated, U-shaped apertures 60 of the sliding plate 26 .
- the sliding plates 26 arranged fixedly on the turntable 30 rotate, during a rotation of the turntable 30 , about a rotation axis D defined by the longitudinal axis of the rotary spindle device and in the process sweep over the base plate 56 with their radially outer end regions.
- the stack of planar articles 12 in the lowered state of the rotary lifting table plate 14 , is pushed by the angle profiles 24 of the two ejection devices 20 , which are each driven synchronously, over the rotary lifting table plate 14 in a low-friction, sliding manner via the sliding surfaces 32 of the sliding plates 26 in one of the ejection directions A, A′ onto the directly opposite outfeed conveyor 28 .
- the angle profiles 24 in the free end regions of their legs projecting from the transport means 22 , are provided with profile extensions 62 of U-shaped cross section. These profile extensions 62 are preferably formed from an elastic plastic material and reduce the risk of damage to the planar articles 12 when the stack of planar articles 12 is being pushed out.
- the opposite ejection devices 20 are each provided, centrally with respect to their longitudinal axis, with format adaptation elements 64 on the outer side opposite the stacking shaft 16 .
- These format adaptation elements 64 permit a displacement of the ejection devices 20 in the longitudinal direction of elongated holes 66 formed in the turntable 30 . Further format adaptation can be carried out via a displacement of the angle profiles 24 along the transport means 22 of the ejection device 20 .
- the air discharge openings 34 of the sliding plates 26 are arranged in a repetitive pattern, preferably in a regularly distributed manner at least in sections. In this way, an air cushion is formed as evenly as possible under the stack of the planar articles 12 . In the process, too rapid an escape of air from the air cushion is reduced by outer end regions of the planar articles 12 , lying flat one on top of the other, being arched downward in the direction of the turntable 30 or the base plate 56 .
- the movable trailing cable 42 together with the common air feed line 40 A is rearranged in a worm shape.
- the sliding plates 26 are each moved toward the outfeed conveyor 28 arranged opposite in the basic rotary position.
- the ejection directions A, A′ are therefore oriented toward the respective other outfeed conveyors 28 .
- FIG. 3 indicates how the stack of planar articles 12 is moved from the rotary lifting table plate 14 via the sliding plate 26 to the assigned outfeed conveyor 28 by synchronous movement of the angle profiles 24 together with their profile extensions 62 in the ejection direction A′.
- sliding plates 26 and of their sliding surfaces 32 may of course be adapted to the specific requirements. It is thus possible, as in the exemplary embodiment described, for the sliding plates 26 to extend into the stacking shaft 16 or to first be arranged outside the stacking shaft.
- the rotary lifting table plate 14 with air discharge openings 34 like the sliding plates 26 , pressurized air escaping from said air discharge openings 34 to produce an air cushion under the stack of planar articles 12 .
- the sliding plates 26 it is also conceivable to fasten the sliding plates 26 to the base plate 56 of the rotary lifting table housing 54 in a fixed position.
- the flat sliding surfaces 32 running essentially horizontally in the exemplary embodiment described, of the sliding plates 26 , inclined or profiled sliding surfaces 32 are of course also conceivable.
Abstract
The rotary lifting table is equipped with a rotary lifting table plate (14) for supporting planar articles (12) and two ejection devices (20) which are located opposite one another and define a stacking shaft (16) and are intended for ejecting the stacked planar articles (12). In addition, it has, according to the invention, a sliding plate (26) having air discharge openings (34), through which pressurized air escapes during the removal of a stack of planar articles (12) and thus makes possible low-friction sliding of the stack from the stacking shaft (16).
Description
- The present invention relates to a rotary lifting table according to the preamble of claim 1.
- Rotary lifting tables for processing planar articles, in particular printed products, such as printed sheets, newspapers, magazines, etc., are generally known. They are equipped with a rotatable and/or liftable and lowerable rotary lifting table plate, on which or above which the planar articles come to lie. Rotary lifting tables have as a rule associated ejection means, by means of which the planar articles lying on the rotary lifting table plate can be pushed out in a selected ejection direction.
- The rotatability of the rotary lifting table plate is advantageous in particular when forming stacks of folded printed products. Thus, to increase the stability of such stacks, partial stacks rotated relative to one another in each case by 180° relative to a rotation axis oriented at right angles to the rotary lifting table plate are alternately arranged in layers one above the other. In this way, thicker regions on the fold side and thinner regions of the free side edges of printed products of successive partial stacks in each case come to lie alternately one above the other, such that differences in height of the individual partial stacks on account of their different thicknesses in certain regions are compensated for.
- Rotary lifting table plates are preferably liftable and lowerable in order to specifically reduce, for example, drop heights for printed products or partial stacks formed therefrom or, for the purpose of compressing stacks, in order to be able to press said stacks against pressing elements arranged above the rotary lifting table plate.
- It is not absolutely necessary in every case to form both the rotatability and the liftability and lowerability of the rotary lifting table plate. On the contrary, the claimed rotary lifting table described below can also be used in a completely analogous manner with restricted functionality, that is to say when used as a rotary table or lifting table, or even only as a stacking table.
- A rotary lifting table for supporting printed products is described, for example, in EP-A-1852379. In this case, a rotary lifting table plate is arranged on a rotary lifting cylinder, said rotary lifting table plate being equipped on two opposite sides with ejection devices which have ejection means for ejecting the printed products arranged in a stack. A movement, displacing the printed products, of the ejection means over the rotary lifting table plate defines an ejection device in this case. The rotary lifting table plate has a supporting surface arched convexly upward and having a transverse ridge region, the longitudinal extent of which runs at least virtually at right angles to the ejection direction. The planar articles lying one above the other in the stack are adapted to the arched supporting surface on account of their sheet-like formation and their dead weight and give the stack increased stability due to their profiling.
- In particular during the ejection of the stacks of planar products, the problem arises that the dimensional stability of the stack and the intactness of the planar products may be impaired during the ejection.
- It is therefore the object of the present invention to improve the dimensional stability and intactness of the stacks of planar articles during their removal from a rotary lifting table.
- This object is achieved by a rotary lifting table as claimed in claim 1. Especially preferred embodiments are provided with the features stated in the dependent claims.
- The rotary lifting table according to the invention is equipped with a rotary lifting table plate for supporting planar articles, in particular printed products. A stacking shaft is bounded at the bottom at least partly by the rotary lifting table plate, said stacking shaft being defined by two opposite ejection devices, and the planar articles being collected in said stacking shaft in order to form a stack. The ejection devices, by means of which the stacked planar articles can be removed in at least one ejection direction, are mounted on a turntable connected to the rotary lifting table plate in a rotationally fixed manner.
- According to the invention, the rotary lifting table is equipped with at least one sliding plate which has air discharge openings. During removal of the stack of planar articles, low-friction sliding from the stacking shaft in the ejection direction is made possible by air being forced from the air discharge nozzles, such that an air cushion is formed between the lowermost planar article of the stack and the sliding plate. Due to the low-friction sliding from the stacking shaft, there is less risk of the planar articles being damaged or of the stack being deformed or collapsing. At the same time, a lower expenditure of force is required by the ejection devices when pushing the stack out of the stack space.
- In especially preferred embodiments, the rotary lifting table plate engages in the sliding plate during the ejection of the stack. In a further preferred embodiment, the sliding plate is fixed on the turntable.
- An especially preferred embodiment of the rotary lifting table according to the invention is described in detail below with reference to drawings, in which, purely schematically and in detail:
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FIG. 1 shows a rotary lifting table according to the invention in a side view with partial sectional illustration, having a rotary lifting table plate in a lowered and a raised position (dot-dash line) and laterally arranged sliding plates; -
FIG. 2 shows, in a plan view, the rotary lifting table shown inFIG. 1 , in a basic rotary position with the laterally arranged sliding plates and assigned outfeed conveyors; and -
FIG. 3 shows, in a plan view, the rotary lifting table shown inFIG. 1 andFIG. 2 , in an end rotary position. - The rotary lifting table 10 according to the invention shown in
FIG. 1 , which is intended forplanar articles 12, in particular for printed products, such as magazines, newspapers, paper sheets, etc., has a rotarylifting table plate 14 for supporting theplanar articles 12, astacking shaft 16 being bounded at least partly at the bottom by said rotarylifting table plate 14. The rotarylifting table plate 14 is shown inFIG. 1 in a lowered basic lifting position and in a raised position (dot-dash lines). The rotarylifting table plate 14 is mounted centrally on arotary spindle device 18 which ensures the liftability and lowerability of the rotarylifting table plate 14. Therotary spindle device 18 is part of a lifting means which can preferably be operated electrically, hydraulically or pneumatically. - The
stacking shaft 16 is defined by twoejection devices 20 which are located opposite one another and of which only one can be seen inFIG. 1 . Theejection devices 20 are described in detail, for example, in EP-A-1445224. They are equipped with ejection means which are fastened totransport means 22 and are in the form ofangle profiles 24. Theangle profiles 24 define thestacking shaft 16 laterally and permit the spatially defined formation of stacks ofplanar articles 12. - To eject the
planar articles 12 which are then arranged in a stack, theangle profiles 24 are moved in the ejection directions A, A′, likewise defined by theejection devices 20, and the stacks are pushed to assigned conveyors, in particularoutfeed conveyors 28, in a sliding manner via slidingplates 26 designed according to the invention. A section through one of thesliding plates 26 is shown inFIG. 1 in the partial sectional illustration. - The
sliding plates 26 are fixedly arranged on aturntable 30 which rotates with the rotarylifting table plate 14. They have a top slidingsurface 32 withair discharge openings 34, from which pressurized air can escape, such that, when a stack ofplanar articles 12 is being pushed out, an air cushion forms between the lowermostplanar article 12 of the stack and thesliding surface 32. The stack ofplanar articles 12 which is “floating” on this air cushion is pushed in one of the ejection directions A, A′ to the respective outfeedconveyor 28 for ejecting by theangle profiles 24 of theejection devices 20. - In the interior, the
sliding plates 26 have acavity 36, to which the pressurized air is directed viaair feed connections 38, said pressurized air then discharging from thecavity 36 through theair discharge openings 34. In this case, theair discharge openings 34 can preferably widen from thecavity 36 in the direction of the top slidingsurface 32. The cross sections of theair discharge openings 34 may of course be adapted to the respective application. - The
air feed connections 38 are fluidically connected to a reservoir (not depicted) of pressurized air viaair feed lines 40, which are shown by dashed lines inFIG. 1 . In the embodiment shown here, the twoair feed connections 38 of the twosliding plates 26 are connected to one another via a T piece, and a commonair feed line 40A which is directed along therotary spindle device 18 enters a movabletrailing cable 42 via an end arranged fixedly relative to theturntable 30 on the side of the rotary lifting table. Inside the movabletrailing cable 42, the preferably flexible commonair feed line 40A is directed to a pressure-regulatingdevice 44, shown inFIG. 2 andFIG. 3 , and is connected via the latter to the reservoir. - The pressure-regulating
device 44 forms a control device for establishing the pressure of the air escaping from theair discharge openings 34 of thesliding plates 26. The air pressure is in this case preferably established as a function of the weight of the supported planar articles and/or of the rotary/lifting state of the rotarylifting table plate 14. It may be noted at this point that the air medium may of course also be replaced by another gaseous medium. - The essentially circular-disk-
shaped turntable 30 is rotatably mounted on atable frame 50 via a bell-shaped support 46 by means of a ball bearing 48. Therotary spindle device 18, which extends essentially at right angles to theturntable 30, is arranged coaxially in the interior of the bell-shaped support 46. A rotary movement of theturntable 30, which is connected to the rotarylifting table plate 14 in a rotationally fixed manner, is driven by a belt drive (not depicted), the belt or toothed belt of which rests on the outer circumferential surface of ahub element 52 of the bell-shaped support 46. - The belt drive is operated, for example, by means of an electric motor (not depicted).
- The
table frame 50 is connected in a rotationally fixed manner to a rotarylifting table housing 54, which has afixed base plate 56 on the top side. - The
stacking shaft 16, formed by theejection devices 20, and the ejection directions A, A′, in which the associatedoutfeed conveyors 28 follow, can be seen especially well in the plan view inFIG. 2 of the rotary lifting table 10 according to the invention. As can be seen from the figure, in which the rotary lifting table 10 is shown in a basic rotary position, tongue-like extensions 58 of the rotary liftingtable plate 14, which are formed thereon on the wide side, are in engagement with associated,U-shaped apertures 60 of the slidingplate 26. The slidingplates 26 arranged fixedly on theturntable 30 rotate, during a rotation of theturntable 30, about a rotation axis D defined by the longitudinal axis of the rotary spindle device and in the process sweep over thebase plate 56 with their radially outer end regions. - During the ejection of a stack of
planar articles 12 from the stackingshaft 16, the stack ofplanar articles 12, in the lowered state of the rotary liftingtable plate 14, is pushed by the angle profiles 24 of the twoejection devices 20, which are each driven synchronously, over the rotary liftingtable plate 14 in a low-friction, sliding manner via the slidingsurfaces 32 of the slidingplates 26 in one of the ejection directions A, A′ onto the directly oppositeoutfeed conveyor 28. - As can also be seen from
FIG. 2 , the angle profiles 24, in the free end regions of their legs projecting from the transport means 22, are provided withprofile extensions 62 of U-shaped cross section. Theseprofile extensions 62 are preferably formed from an elastic plastic material and reduce the risk of damage to theplanar articles 12 when the stack ofplanar articles 12 is being pushed out. - The
opposite ejection devices 20 are each provided, centrally with respect to their longitudinal axis, withformat adaptation elements 64 on the outer side opposite the stackingshaft 16. Theseformat adaptation elements 64 permit a displacement of theejection devices 20 in the longitudinal direction ofelongated holes 66 formed in theturntable 30. Further format adaptation can be carried out via a displacement of the angle profiles 24 along the transport means 22 of theejection device 20. - As can likewise be seen from
FIG. 2 , theair discharge openings 34 of the slidingplates 26 are arranged in a repetitive pattern, preferably in a regularly distributed manner at least in sections. In this way, an air cushion is formed as evenly as possible under the stack of theplanar articles 12. In the process, too rapid an escape of air from the air cushion is reduced by outer end regions of theplanar articles 12, lying flat one on top of the other, being arched downward in the direction of theturntable 30 or thebase plate 56. - In the basic rotary position, shown in
FIG. 2 , of the rotary lifting table 10, as is assumed, for instance, when ejecting a stack ofplanar articles 12, the movable trailingcable 42, in which the commonair feed line 40A is guided, describes an essentially U-shaped bend. During a rotation about the rotation axis D in a direction of rotation DR, as indicated inFIG. 2 by an arrow, through 180°, the end rotary position shown inFIG. 3 is assumed. - In this end rotary position, the movable trailing
cable 42 together with the commonair feed line 40A is rearranged in a worm shape. During the changeover from the basic rotary position into the end rotary position, the slidingplates 26 are each moved toward theoutfeed conveyor 28 arranged opposite in the basic rotary position. During the rotation of the stack ofplanar articles 12, the ejection directions A, A′ are therefore oriented toward the respective otheroutfeed conveyors 28. -
FIG. 3 indicates how the stack ofplanar articles 12 is moved from the rotary liftingtable plate 14 via the slidingplate 26 to the assignedoutfeed conveyor 28 by synchronous movement of the angle profiles 24 together with theirprofile extensions 62 in the ejection direction A′. - The specific form of the sliding
plates 26 and of their slidingsurfaces 32 may of course be adapted to the specific requirements. It is thus possible, as in the exemplary embodiment described, for the slidingplates 26 to extend into the stackingshaft 16 or to first be arranged outside the stacking shaft. - In addition, it is possible to also provide the rotary lifting
table plate 14 withair discharge openings 34 like the slidingplates 26, pressurized air escaping from saidair discharge openings 34 to produce an air cushion under the stack ofplanar articles 12. Contrary to a rotationally fixed arrangement of the slidingplates 26 on theturntable 30, as in the exemplary embodiment described above, it is also conceivable to fasten the slidingplates 26 to thebase plate 56 of the rotary liftingtable housing 54 in a fixed position. In addition to the flat slidingsurfaces 32, running essentially horizontally in the exemplary embodiment described, of the slidingplates 26, inclined or profiled slidingsurfaces 32 are of course also conceivable. - In all these cases, however, as in the exemplary embodiment described, low-friction sliding of the stack from the stacking
shaft 16 in the ejection directions A, A′ to associatedoutfeed conveyors 28 is made possible by means of the air cushion produced under the stack ofplanar articles 12.
Claims (13)
1. A rotary lifting table having a rotary lifting table plate (14) for supporting planar articles (12), in particular printed products, and two ejection devices (20) which are located opposite one another and define a stacking shaft (16) and by means of which stacked planar articles (12) can be removed in at least one ejection direction (A, A′), the stacking shaft (16) being bounded at the bottom at least partly by the rotary lifting table plate (14), and the ejection devices (20) being arranged on a turntable (30) connected to the rotary lifting table plate (14) in a rotationally fixed manner, comprising a sliding plate (26) which has air discharge openings (34) and makes possible low-friction sliding from the stacking shaft (16) in the ejection direction (A, A′) during the removal of the stack of planar articles (12).
2. The rotary lifting table as claimed in claim 1 , wherein the sliding plate (26) extends into the stacking shaft (16).
3. The rotary lifting table as claimed in claim 1 , wherein the sliding plate (26) is arranged to rotate with the rotary lifting table plate (14).
4. The rotary lifting table as claimed in claim 3 , wherein the sliding plate (26) is fastened to the turntable (30).
5. The rotary lifting table as claimed in claim 1 , wherein the rotary lifting table plate (14) and the sliding plate (26) are in engagement with one another during the removal of the stack of planar articles (12).
6. The rotary lifting table as claimed in claim 1 , wherein pressurized air can escape from the air discharge openings (34) in such a way that an air cushion forms between the lowermost planar article of the stack of planar articles (12) and a sliding surface (32), facing this lowermost planar article, of the sliding plate (26).
7. The rotary lifting table as claimed in claim 6 , wherein the air discharge openings (34) widen toward the sliding surface (32).
8. The rotary lifting table as claimed in claim 1 , wherein the air discharge openings (34) are arranged in a repetitive pattern, preferably in a regularly distributed manner at least in sections.
9. The rotary lifting table as claimed in claim 1 , wherein a flexible air feed line (40, 40A) is guided in a movable trailing cable (42) for feeding pressurized air to the sliding plate (26), said trailing cable (42) being fixedly arranged relative to the turntable (30) on the side of the rotary lifting table.
10. The rotary lifting table as claimed in claim 1 , wherein two ejection directions (A, A′) having a diametrically opposite sense of direction are defined by the stacking shaft (16), and one sliding plate (26) each is arranged in a respective ejection direction (A, A′).
11. The rotary lifting table as claimed in claim 1 , wherein the sliding plate (26) extends between the stacking shaft (16) and an associated conveyor, in particular an outfeed conveyor (28).
12. The rotary lifting table as claimed in claim 1 , wherein the rotary lifting table plate (14) is also provided with air discharge openings (34), from which pressurized air can escape.
13. The rotary lifting table as claimed in claim 1 , wherein the pressure of the air escaping from the sliding plate (26) is preferably established as a function of the weight of the supported planar articles (12) and/or of a rotary/lifting state of the rotary lifting table plate (14) via a pressure-regulating device (44).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH7822008 | 2008-05-23 | ||
CH20080782/08 | 2008-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090290969A1 true US20090290969A1 (en) | 2009-11-26 |
Family
ID=39826572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/466,147 Abandoned US20090290969A1 (en) | 2008-05-23 | 2009-05-14 | Rotary lifting table |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090290969A1 (en) |
EP (1) | EP2133301B1 (en) |
AT (1) | ATE514648T1 (en) |
AU (1) | AU2009201378A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104229437A (en) * | 2014-09-19 | 2014-12-24 | 李士羽 | Bottle arranging machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020113375A1 (en) * | 2020-05-18 | 2021-11-18 | Koenig & Bauer Ag | Sheet processing machine with at least one transfer transport system and method for transporting sheets in a sheet processing machine |
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2009
- 2009-03-21 AT AT09004076T patent/ATE514648T1/en active
- 2009-03-21 EP EP09004076A patent/EP2133301B1/en not_active Not-in-force
- 2009-04-08 AU AU2009201378A patent/AU2009201378A1/en not_active Abandoned
- 2009-05-14 US US12/466,147 patent/US20090290969A1/en not_active Abandoned
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US3100039A (en) * | 1961-09-01 | 1963-08-06 | Sta Hi Corp | Turning apparatus for conveyer system |
US3283920A (en) * | 1964-08-18 | 1966-11-08 | Melksham Spencer Ltd | Infrastructure element for an installation for conveying objects by pneumatic floating |
US3379320A (en) * | 1966-09-22 | 1968-04-23 | Sheridan Loach Ltd | Compensating stacker |
US3563360A (en) * | 1967-07-18 | 1971-02-16 | August Wickersheim | Apparatus for feeding articles to be packaged, particularly journals, newspapers and the like, to packaging appliances |
US3588088A (en) * | 1968-01-25 | 1971-06-28 | Monforts Fa A | Transport device for a web material folding or processing machine |
US3545813A (en) * | 1969-04-18 | 1970-12-08 | Tsubakimoto Chain Co | Air-film conveying apparatus |
US4457657A (en) * | 1981-07-21 | 1984-07-03 | Beloit Corporation | Integral paper collection and transfer assembly |
US5282716A (en) * | 1990-06-06 | 1994-02-01 | Quipp Systems, Inc. | Method and apparatus for stacking, aligning and compressing signatures |
US5868549A (en) * | 1997-08-29 | 1999-02-09 | Hk Systems, Inc. | Palletizer with air assisted slide plate assembly and indexing pallet hoist |
US6398874B2 (en) * | 1998-08-05 | 2002-06-04 | Samsung Electronics Co., Ltd. | Use of alkoxy N-hydroxyalkyl alkanamide as resist removing agent, composition for removing resist, method for preparing the same and resist removing method using the same |
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US20040140607A1 (en) * | 2003-01-14 | 2004-07-22 | Ferag Ag | Apparatus for forming stacks of flat objects |
US20050281655A1 (en) * | 2004-05-05 | 2005-12-22 | Muller Martini Holding Ag | Apparatus for forming stacks with print products |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104229437A (en) * | 2014-09-19 | 2014-12-24 | 李士羽 | Bottle arranging machine |
Also Published As
Publication number | Publication date |
---|---|
AU2009201378A1 (en) | 2009-12-10 |
ATE514648T1 (en) | 2011-07-15 |
EP2133301B1 (en) | 2011-06-29 |
EP2133301A1 (en) | 2009-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FERAG AG, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DAX, ROMAN;REEL/FRAME:022690/0082 Effective date: 20090427 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |