EP2841367B1 - Apparatus for imbricating sheets and depositing them on a stack - Google Patents
Apparatus for imbricating sheets and depositing them on a stack Download PDFInfo
- Publication number
- EP2841367B1 EP2841367B1 EP13712539.9A EP13712539A EP2841367B1 EP 2841367 B1 EP2841367 B1 EP 2841367B1 EP 13712539 A EP13712539 A EP 13712539A EP 2841367 B1 EP2841367 B1 EP 2841367B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- suction
- negative pressure
- conveying direction
- sheets
- 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.)
- Not-in-force
Links
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- 208000001840 Dandruff Diseases 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
- B65H29/241—Suction devices
- B65H29/242—Suction bands or belts
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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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
- B65H29/245—Air blast devices
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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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
- B65H29/245—Air blast devices
- B65H29/246—Air blast devices acting on stacking devices
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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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
- B65H29/32—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from pneumatic, e.g. suction, carriers
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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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/58—Article switches or diverters
- B65H29/62—Article switches or diverters diverting faulty articles from the main streams
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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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/66—Advancing articles in overlapping streams
- B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
- B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
- B65H29/6627—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed in combination with auxiliary means for overlapping articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/68—Reducing the speed of articles as they advance
- B65H29/686—Pneumatic brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65H31/34—Apparatus for squaring-up piled articles
- B65H31/38—Apparatus for vibrating or knocking the pile during piling
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
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- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
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- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/18—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles
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- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02194—Flooring consisting of a number of elements carried by a non-rollable common support plate or grid
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- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
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- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/203—Separately-laid layers for sound insulation
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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
- B65H2301/421—Forming a pile
- B65H2301/4212—Forming a pile of articles substantially horizontal
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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
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/60—Other elements in face contact with handled material
- B65H2404/63—Oscillating, pivoting around an axis parallel to face of material, e.g. diverting means
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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
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/60—Other elements in face contact with handled material
- B65H2404/69—Other means designated for special purpose
- B65H2404/693—Retractable guiding means, i.e. between guiding and non guiding position
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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
- B65H2406/13—Means using fluid made only for exhausting gaseous medium pressure arrangement for compensating weight of handled material
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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
- B65H2406/30—Suction means
- B65H2406/32—Suction belts
- B65H2406/322—Suction distributing means
- B65H2406/3221—Suction distributing means for variable distribution in the direction of transport
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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
- B65H2406/30—Suction means
- B65H2406/32—Suction belts
- B65H2406/323—Overhead suction belt, i.e. holding material against gravity
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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
- B65H2406/30—Suction means
- B65H2406/36—Means for producing, distributing or controlling suction
- B65H2406/363—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means
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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
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/176—Cardboard
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
- E04B2001/849—Groove or slot type openings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
- E04F2290/042—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a facing or top layer for sound insulation
Definitions
- the invention relates to a device for shingling and depositing sheets on a stack, which has a braking device arranged in front of the stacking area, which acts in each case on the trailing edge of a conveyed sheet, and at least one carrying strip with nozzles extending in the stacking area above the feed plane which exits compressed air.
- a device of the generic type is in the WO 94/25384 A1 described. Such devices are used for stacking sheets behind continuous sheet transport machines such as cross-cutters or presses. In a first step, they generate a scale stream from the sheets fed in succession, which is then deposited on a stack.
- the length of the usually stored on pallets sheets can be significantly larger than the sheet width and be 1 m and more.
- the in the WO 94/25384 A1 described device is very compact. Their length between the braking device and the beginning of the stacking area is less than the maximum processable arc length.
- the US 3,941,374 A discloses a device for stacking individual single-length sheets with one or more suction conveyors or belts having conveyor that promotes the sequentially entered sheet from the input to the tray with a defined conveying speed, and with a arranged in front of the filing brake device, the deflects the end of each sheet downwards from the conveying plane and reduces the conveying speed to a velocity ensuring disturbance-free depositing, wherein the suction effect of the suction conveying roller arranged in the vicinity of the braking device is perforated only on a peripheral part and circulates in such a way that the perforated one follows the course of the sheet input Peripheral part of the suction conveyor roller synchronously with the beginning of each sheet is running and the unperforated peripheral part of the suction conveyor roller faces the end of each sheet, when the sheet end is in the range of which also in time with the bow input effective braking device is located.
- the JP 2004 43106 A discloses a cut sheet ejecting device having a rotary cutting tool which cuts a strip and separates the sheet by means of an upper suction conveyor belt which feeds the sheet while being sucked, and a peeling member which sucks the rear end portion of the sheet by the means on the upper suction conveyor belt peels.
- a suction roll is formed and the pull-off member is arranged to push the trailing end of the sheet to the suction roll.
- the disclosure JP 2004 43106 A a suction box which picks up the sheet with the lower suction conveyor belt and conveys it to the stack and gradually deposits it on the stack as the suction force is reduced.
- the invention has for its object to improve a compact device of the generic type so that they can also store sheets of sensitive papers at great speed.
- nozzles of the support air strips arranged above the stack area are designed so that compressed air exits in the sheet conveying direction. This creates a partial negative pressure in the area of the nozzles, which pulls the sheet with little force against the carrying air strip. At the same time, the outflowing compressed air exerts a force on the sheet in the conveying direction.
- a suction belt is arranged above the conveying plane, which is movable in the conveying direction with the fast Zuure Marie and the negative pressure clocked switched on and off.
- the negative pressure in the suction belt arranged between the braking device and the stacking area can be reduced as quickly as possible, it is preferably additionally connected to an overpressure source, which is activated after the negative pressure has been switched off.
- this suction belt moves at the speed of the scale flow and has two suction zones in succession in the conveying direction, so that at the end of the stop a lower negative pressure than before can be set. This prevents that the sheet leading edge is moved with too much force against the leading edge stops and thereby damage them.
- the unsatisfactory supporting effect of the carrying air strips can be effectively supplemented.
- the braking device is advantageously designed so that below the Zuierebene a connected to a vacuum source suction box is arranged with suction openings on its upper side, which can be opened and closed in a clocked manner.
- the braking device includes two in the conveying direction successively arranged suction boxes, which are clocked independently activated. This arrangement makes it possible to turn off the back in the conveying direction suction box early, and to avoid accidental sucking the subsequent fast bow. Due to the arrangement of the second suction chamber, the sheet can be strongly sucked over a longer period and way. This effect is advantageous to isolate the bow from the tensile forces of the support bars.
- a downwardly blowing tuyere positioned above the suction box and above the conveying plane, aids in the downward movement of the trailing edge of the sheet by pressing it against the suction box.
- the web 1 is withdrawn by means of a preferred roller 2 of a roller 3, which is mounted in a unwinding device.
- Behind the feed rollers 2 follows a cross-cutting device 4, which includes an upper, circumferentially equipped with a transverse knife cutterhead and a lower fixed knife. It is also possible to use two rotating knife drums.
- the web 1 is divided into individual sheets 5.
- the sheets 5 are taken from above and below their conveying plane arranged bands 6, 7, which promote with a little increased speed to the sheets 5 taut hold.
- a curved switch 8 is arranged, which serves for the discharge of defective sheets 9.
- the bow lock leads to a container 10, in which the defective sheets 9 are collected. Behind the curved switch 8, the sheets 5 are guided between a further lower belt 11 and the upper belts of the discharge belts 7 to the subsequently arranged braking device, which produces as part of an overlapping device a scale flow from the sheets, which is then stored on a stack.
- the braking device includes at least one arranged below the feed plane suction box with suction ports on the top, which can be opened and closed in clocked for sucking a sheet trailing edge.
- the braking device comprises two suction boxes 12, 13 arranged one behind the other in the conveying direction, the upper side of which is revolved by slow perforated belts 14 running at the braked speed.
- the suction ports of the suction boxes 12, 13 can be opened and closed in cycles to pull the trailing edge of a sheet down onto the low speed belt 14. The bow is braked to the depositing speed.
- a downwardly blowing tuyere 15 is arranged, from which the sheet trailing edge is pressed with a strong flow of air down to the suction box 12.
- the blowing air of the tuyere 15 is cyclically switched on and off, so that in the off state, the leading edge of the following sheet 5 can slide over the trailing edge of the previous sheet 16.
- the two suction boxes 12, 13 are clocked independently activated. This makes it possible to turn off the negative pressure in the front suction box 12, while the negative pressure in the rear suction box 13 is still active.
- the leading edge of the following incoming sheet 5 moves so smoothly over the trailing edge of the previous sheet 16th
- At least one circulating suction belt 17 is arranged extending in the conveying direction above the conveying plane.
- a plurality of parallel suction belts 17 are arranged transversely at a distance from each other.
- the suction belts 17 each circulate a suction box 18, which builds up a bow pulling up negative pressure.
- the suction boxes 18 are connected to both a vacuum and a pressure source.
- the leading edge of a newly incoming sheet 5 is pulled up and held there and transported at high speed safely over the already braked and scaly sheet stream.
- the circulating suction belts 17 is an exact control of the movement speed and position of the newly incoming sheet 5 possible after the trailing edge has left the belt sections 7 and 11.
- the leading edges of the already shingled sheets 16 are conveyed in a floating manner through the carrying air strips 19 and suction nozzles 31 into the stacking area.
- the trailing edges of the scalloped sheets 16 are taken after leaving the suction zones 12, 13 of a further suction zone 33 and transported to the storage area to the rear alignment elements 26.
- For certain papers can be stored without the second suction zone 33. It then follows the tray directly after the suction zone 13 on the stack.
- each transversely adjustable Tragopathyartn 19 which have at their bottom nozzles from which emerges compressed air, which is supplied from a compressed air source 20.
- the nozzles of each carrier air strip 19 are designed so that compressed air exits in the sheet conveying direction and so a bow 16, as in FIG. 3 shown, with its leading edge promotes against stops 21, from which it is stopped.
- the stops 21 take over the alignment of the sheet leading edge.
- the stopped sheets 16 sink to the top of the stack 23 resting on a pallet 22 while being laterally aligned by alignment members 24, 25.
- the alignment of the trailing edge is effected by means of a transversely arranged alignment element 26, which is shaken as well as the lateral alignment elements 24, 25.
- a further suction belt 27 extending in the conveying direction is arranged in front of the end stops 21, above the feed plane, which can be subjected to negative pressure.
- the suction belt 27 preferably has two suction zones arranged one behind the other in the conveying direction, which are formed by suction chambers 28, 29, which can be acted on with different negative pressure.
- the suction chambers 28, 29 are circulated by the suction belt 27, wherein by means of the front suction chamber 28, a greater negative pressure is set than by means of the rear suction chamber 29. This makes it possible to reduce the conveying force to a sheet 16 immediately before reaching the stops 21.
- each additional Saugleisten 31 are arranged next to the Tragluftorn, each having a slot-shaped, next to the Tragluftorn 19 extending suction and together build a planar negative pressure on the top of the leading edge of an incoming sheet 16 acts.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Pile Receivers (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Schuppen und Ablegen von Bögen auf einen Stapel, die eine vor dem Stapelbereich angeordnete Bremseinrichtung, die jeweils auf die Hinterkante eines zugeförderten Bogens einwirkt, und zumindest eine sich in dem Stapelbereich oberhalb der Zuförderebene erstreckende Tragleiste mit Düsen aufweist, aus denen Druckluft austritt.The invention relates to a device for shingling and depositing sheets on a stack, which has a braking device arranged in front of the stacking area, which acts in each case on the trailing edge of a conveyed sheet, and at least one carrying strip with nozzles extending in the stacking area above the feed plane which exits compressed air.
Eine Vorrichtung der gattungsgemäßen Art ist in der
Die Länge der üblicherweise auf Paletten abgelegten Bögen kann dabei deutlich größer als die Bogenbreite sein und 1 m und mehr betragen.The length of the usually stored on pallets sheets can be significantly larger than the sheet width and be 1 m and more.
Die in der
Die
Die
Diese Aufgabe wird dadurch gelöst, dass die Düsen der oberhalb des Stapelbereichs angeordneten Tragluftleisten so gestaltet sind, dass Druckluft in Bogenförderrichtung austritt. Dadurch entsteht im Bereich der Düsen ein partieller Unterdruck der den Bogen mit geringer Kraft an die Tragluftleiste zieht. Gleichzeitig übt die ausströmende Druckluft eine Kraft auf den Bogen in Förderrichtung aus. Im Bereich zwischen der Bremseinrichtung und dem Stapelbereich ist oberhalb der Förderebene ein Saugband angeordnet, das in Förderrichtung mit der schnellen Zufördergeschwindigkeit bewegbar ist und dessen Unterdruck getaktet zu-und abschaltbar ist.This object is achieved in that the nozzles of the support air strips arranged above the stack area are designed so that compressed air exits in the sheet conveying direction. This creates a partial negative pressure in the area of the nozzles, which pulls the sheet with little force against the carrying air strip. At the same time, the outflowing compressed air exerts a force on the sheet in the conveying direction. In the area between the braking device and the stacking area, a suction belt is arranged above the conveying plane, which is movable in the conveying direction with the fast Zufördergeschwindigkeit and the negative pressure clocked switched on and off.
Diese Merkmale bewirken, dass sowohl im Bereich der Bremseinrichtung bei der Bildung des Schuppenstroms als auch im Stapelbereich der jeweils vorderste Bogen an seiner Vorderkante nach vorne gezogen und so straff gehalten wird. Hat die Bogenhinterkante den Bereich der Bremseinrichtung erreicht, so wird der Unterdruck ausgeschaltet, damit sich der Bogen nach unten bewegt, um sich auf den im Schuppenstrom vorlaufenden Bogen aufzulegen.The effect of these features is that both in the region of the braking device in the formation of the scale flow as well as in the stacking area, the respective foremost sheet is pulled forward at its front edge and kept so taut. If the sheet trailing edge has reached the area of the braking device, then the negative pressure is switched off, so that the sheet moves down to hang up on the sheet leading in the scale flow.
Damit der Unterdruck in dem zwischen der Bremseinrichtung und dem Stapelbereich angeordneten Saugband möglichst schnell abgebaut werden kann, ist dieses bevorzugt zusätzlich an eine Überdruckquelle angeschlossen, die nach dem Abschalten des Unterdrucks aktiviert wird.So that the negative pressure in the suction belt arranged between the braking device and the stacking area can be reduced as quickly as possible, it is preferably additionally connected to an overpressure source, which is activated after the negative pressure has been switched off.
Damit die Vorderkanten von empfindlichen Bögen sich nicht im Stapelbereich während der Vorwärtsbewegung auf dem Stapel über die bereits abgelegten Bögen bewegen und so gestaucht oder beschädigt werden, ist am Ende des Stapelbereichs vor dem Vorderkantenanschlag ein zweites sich in Förderrichtung erstreckendes und mit Unterdruck beaufschlagbares Saugband angeordnet. Bevorzugt bewegt sich dieses Saugband mit der Geschwindigkeit des Schuppenstroms und weist in Förderrichtung hintereinander zwei Saugzonen auf, damit am Anschlagende ein geringerer Unterdruck als davor eingestellt werden kann. Dadurch wird verhindert, dass die Bogenvorderkante mit zu großer Kraft gegen die Vorderkantenanschläge bewegt wird und dadurch eine Beschädigung dieser entsteht.So that the leading edges of sensitive sheets do not move in the stacking area during forward movement on the stack over the already deposited sheets and are compressed or damaged, at the end of the stacking area in front of the leading edge stop a second extending in the conveying direction and can be acted upon with vacuum suction belt. Preferably, this suction belt moves at the speed of the scale flow and has two suction zones in succession in the conveying direction, so that at the end of the stop a lower negative pressure than before can be set. This prevents that the sheet leading edge is moved with too much force against the leading edge stops and thereby damage them.
Bevorzugt sind im hinteren Stapelbereich jeweils sich neben den Tragluftleisten erstreckende zusätzliche Saugleisten angeordnet, die die Tragwirkung der installierten Tragluftleisten unterstützen. Besonders im Bereich des geschuppten Bogenstroms kann die ungenügende Tragwirkung der Tragluftleisten wirkungsvoll ergänzt werden.Preferably, in the rear stacking area extending in each case next to the supporting air strips extending additional suction, which support the supporting effect of the installed Tragluftleisten. Particularly in the area of the shingled arc current, the unsatisfactory supporting effect of the carrying air strips can be effectively supplemented.
Die Bremseinrichtung ist vorteilhaft so gestaltet, dass unterhalb der Zuförderebene ein an eine Vakuumquelle angeschlossener Saugkasten mit Saugöffnungen an seiner Oberseite angeordnet ist, die getaktet geöffnet und geschlossen werden können. Bevorzugt enthält die Bremseinrichtung zwei in Förderrichtung hintereinander angeordnete Saugkästen, die unabhängig voneinander getaktet aktivierbar sind. Diese Anordnung ermöglicht es, den in Förderrichtung hinteren Saugkasten frühzeitig auszuschalten, und so ein versehentliches Ansaugen des nachfolgenden, schnellen Bogens zu vermeiden. Durch die Anordnung der zweiten Saugkammer, kann der Bogen über einen längeren Zeitraum und Weg stark angesaugt werden. Dieser Effekt ist vorteilhaft, um den Bogen von den Zugkräften der Tragleisten zu isolieren.The braking device is advantageously designed so that below the Zuförderebene a connected to a vacuum source suction box is arranged with suction openings on its upper side, which can be opened and closed in a clocked manner. Preferably, the braking device includes two in the conveying direction successively arranged suction boxes, which are clocked independently activated. This arrangement makes it possible to turn off the back in the conveying direction suction box early, and to avoid accidental sucking the subsequent fast bow. Due to the arrangement of the second suction chamber, the sheet can be strongly sucked over a longer period and way. This effect is advantageous to isolate the bow from the tensile forces of the support bars.
Eine oberhalb des Saugkastens und oberhalb der Förderebene angeordnete, nach unten blasende Blasdüse unterstützt die Abwärtsbewegung der Bogenhinterkante, indem sie diese auf den Saugkasten drückt.A downwardly blowing tuyere, positioned above the suction box and above the conveying plane, aids in the downward movement of the trailing edge of the sheet by pressing it against the suction box.
Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.The drawing serves to explain the invention with reference to a simplified embodiment illustrated.
Es zeigen
Figur 1- schematisch die Seitenansicht eines Querschneiders mit einer Vorrichtung zum Schuppen und Ablegen von Bögen,
Figur 2- zeigt in vergrößerter Darstellung einen Ausschnitt von
mit der Vorrichtung zum Schuppen und Ablegen von Bögen,Figur 1 - Figur 3
- zeigt in einer Ansicht gegen die Förderrichtung das Ende des Stapelbereichs.
- FIG. 1
- 1 is a schematic side view of a cross-cutter with a device for shingling and depositing sheets;
- FIG. 2
- shows an enlarged view of a section of
FIG. 1 with the device for shingling and depositing sheets, - FIG. 3
- shows in a view against the conveying direction of the end of the stacking area.
Der in den Figuren dargestellte Querschneider dient zur Herstellung von Papier- oder Kartonbögen aus einer kontinuierlich zugeführten Bahn 1. Die Warenbahn 1 wird mittels einer Vorzugwalze 2 von einer Rolle 3 abgezogen, die in einer Abrolleinrichtung eingehängt ist. Hinter den Vorzugswalzen 2 folgt eine Querschneideeinrichtung 4, die eine obere, umfänglich mit einem Quermesser bestückte Messertrommel und ein unteres feststehendes Messer enthält. Es können auch zwei sich drehende Messertrommeln eingesetzt werden. Beim Durchlauf zwischen den beiden Messern der Querschneideeinrichtung 4 wird die Bahn 1 in einzelne Bögen 5 aufgeteilt. Die Bögen 5 werden von oberhalb und unterhalb ihrer Förderebene angeordneten Bändern 6, 7 übernommen, die mit etwas erhöhter Geschwindigkeit fördern, um die Bögen 5 straff zu halten. Im Bereich der Abzugsbänder 6, 7 ist eine Bogenweiche 8 angeordnet, die zum Ausschleusen schadhafter Bögen 9 dient. Die Bogenschleuse führt zu einem Behälter 10, in dem die schadhaften Bögen 9 gesammelt werden. Hinter der Bogenweiche 8 werden die Bögen 5 zwischen einem weiteren Unterband 11 und den Oberbändern der Abzugsbänder 7 zu der nachfolgend angeordneten Bremseinrichtung geführt, die als Teil einer Überlappungseinrichtung einen Schuppenstrom aus den Bögen herstellt, der anschließend auf einem Stapel abgelegt wird.The cross cutter shown in the figures used for the production of paper or cardboard sheets from a continuously fed
Die Bremseinrichtung enthält zumindest einen unterhalb der Zuförderebene angeordneten Saugkasten mit Saugöffnungen an der Oberseite, die zum Ansaugen einer Bogenhinterkante getaktet geöffnet und geschlossen werden können. Im Ausführungsbeispiel enthält die Bremseinrichtung zwei in Förderrichtung hintereinander angeordnete Saugkästen 12, 13, deren Oberseite von langsamen, mit der abgebremsten Geschwindigkeit laufenden Lochbändern 14 umlaufen wird. Die Saugöffnungen der Saugkästen 12, 13 können getaktet geöffnet und geschlossen werden, um die Hinterkante eines Bogens nach unten auf das langsam laufende Band 14 zu ziehen. Dabei wird der Bogen auf die Ablegegeschwindigkeit abgebremst.The braking device includes at least one arranged below the feed plane suction box with suction ports on the top, which can be opened and closed in clocked for sucking a sheet trailing edge. In the exemplary embodiment, the braking device comprises two
Oberhalb der Saugkästen 12, 13 und oberhalb der Förderebene ist eine nach unten blasende Blasdüse 15 angeordnet, von der die Bogenhinterkante mit einer starken Luftströmung nach unten auf den Saugkasten 12 gedrückt wird. Die Blasluft der Blasdüse 15 ist taktweise zu- und abschaltbar, damit in abgeschaltetem Zustand die Vorderkante des nachfolgenden Bogens 5 sich über die Hinterkante des vorhergehenden Bogens 16 schieben kann. Die beiden Saugkästen 12, 13 sind unabhängig voneinander getaktet aktivierbar. Dies ermöglicht es, den Unterdruck im vorderen Saugkasten 12 abzuschalten, während der Unterdruck im hinteren Saugkasten 13 noch aktiv ist. Die Vorderkante des nachfolgend einlaufenden Bogens 5 bewegt sich so störungsfrei über die Hinterkante des vorhergehenden Bogens 16.Above the
Im Bereich zwischen der Bremseinrichtung (Saugkästen 12, 13) und dem Stapelbereich ist zumindest ein umlaufendes Saugband 17 sich in Förderrichtung erstreckend oberhalb der Förderebene angeordnet. Bevorzugt sind mehrere parallele Saugbänder 17 quer mit Abstand voneinander angeordnet. Die Saugbänder 17 umlaufen jeweils einen Saugkasten 18, der einen den Bogen nach oben ziehenden Unterdruck aufbaut. Um sehr schnell wechselweise einen Unterdruck zu- und wieder abzuschalten, sind die Saugkästen 18 sowohl an eine Unterdruck- als auch an eine Überdruckquelle angeschlossen.In the region between the braking device (
Mittels der Tragluftleisten 19 wird die Vorderkante eines neu einlaufenden Bogens 5 nach oben gezogen und dort gehalten und mit hoher Geschwindigkeit sicher über den bereits abgebremsten und geschuppten Bogenstrom transportiert. Mittels der umlaufenden Saugbänder 17 ist eine exakte Kontrolle der Bewegungsgeschwindigkeit und Position des neu einlaufenden Bogens 5 möglich, nachdem dessen Hinterkante die Bändersektionen 7 und 11 verlassen hat.By means of the
Zur Verstärkung des Halteeffekt sind zwischen den Saugbändern 17 und den Tragluftleisten 19 zusätzliche flache, nach unten offene Saugdüsen 32 angeordnet, die einen zusätzlichen Unterdruck auf die Bogenoberseite aufbringen.To reinforce the holding
Die Vorderkanten der bereits geschuppten Bogen 16 werden schwebend durch die Tragluftleisten 19 und Saugdüsen 31 in den Stapelbereich gefördert. Die Hinterkanten der geschuppten Bogen 16 werden nach dem Verlassen der Saugzonen 12, 13 von einer weiteren Saugzone 33 übernommen und bis in den Ablagebereich an die hinteren Ausrichtelemente 26 transportiert. Bei bestimmten Papieren kann auch ohne die zweite Saugzone 33 abgelegt werden. Es folgt dann die Ablage direkt nach der Saugzone 13 auf den Stapel.The leading edges of the already shingled
Zum Transport eines Bogens in den Stapelbereich erstrecken sich durch den Stapelbereich parallel angeordnete und jeweils quer verstellbare Tragluftleisten 19, die an ihrer Unterseite Düsen aufweisen, aus denen Druckluft austritt, die von einer Druckluftquelle 20 zugeführt wird. Die Düsen jeder Tragluftleiste 19 sind so gestaltet, dass Druckluft in Bogenförderrichtung austritt und so einen Bogen 16, wie in
Am Ende des Stapelbereichs und in dessen Mitte ist vor den Endanschlägen 21 ein weiteres sich in Förderrichtung erstreckendes Saugband 27 oberhalb der Zuförderebene angeordnet, das mit Unterdruck beaufschlagbar ist. Das Saugband 27 weist bevorzugt zwei in Förderrichtung hintereinander angeordnete Saugzonen auf, die von Saugkammern 28, 29 gebildet werden, die mit unterschiedlichem Unterdruck beaufschlagbar sind. Die Saugkammern 28, 29 werden von dem Saugband 27 umlaufen, wobei mittels der vorderen Saugkammer 28 ein stärkerer Unterdruck eingestellt wird als mittels der hinteren Saugkammer 29. Dies ermöglicht es, die Förderkraft auf einen Bogen 16 unmittelbar vor dem Erreichen der Anschläge 21 zu reduzieren.At the end of the stacking area and in the middle thereof, a
Um ein vorzeitiges und unkontrolliertes Absinken eines Bogens 16 aus der Zuförderebene im Stapelbereich zu verhindern, sind jeweils neben den Tragluftleisten 19 zusätzliche Saugleisten 31 angeordnet, die jeweils eine schlitzförmige, sich neben den Tragluftleisten 19 erstreckende Saugöffnung aufweisen und gemeinsam einen flächigen Unterdruck aufbauen, der auf die Oberseite der Vorderkante eines einlaufenden Bogens 16 wirkt.In order to prevent premature and uncontrolled dropping of a
Claims (9)
- A device for imbricating sheets and deposting them on a stack (23)- having a braking device, which is arranged upstream of the stacking region and acts in each case on the trailing edge of a supplied sheet (5), and- the sheet is thereby decelerated to the deposit speed,- having at least one transporting-air bar (19), which extends into the stacking region above the supply plane and has nozzles, from which compressed air exits, and- thus in the area of the nozzles a partial negative pressure arises, which pulls the sheet with a small force to the transporting-air bar,characterized in that- the nozzles of the transporting-air bar (19) are designed such that compressed air exits in the sheet-conveying direction, and- that in the area between the braking device and the stacking region above the supply plane a suction belt (17) is arranged, which is movable in the conveying direction at least with the rapid supply speed and its negative pressure can be switched on and off in a clocked manner.
- A device according to Claim 1, characterized in that the suction belt (17) for alternately switching the negative pressure on and off is connected both to a source of negative pressure as well as to a source of over pressure.
- A device according to Claim 1 or 2, characterized in that at the end of the stacking region a stop (21) is arranged for the sheet front edges and in front of the stop (21) above the supply plane at least one suction belt (27) is arranged extending in the conveying direction and capable of being operated with negative pressure.
- A device according to Claim 3, characterized in that the suction belt (27) has two suction zones one behind the other in the conveying direction, which can be operated with different negative pressure.
- A device according to any one of Claims 1 to 4, characterized in that the braking device contains a suction box (12, 13) arranged underneath the supply plane with suction openings on its upper side, which can be opened and closed in a clocked manner.
- A device according to Claim 5, characterized in that the braking device contains two suction boxes (12, 13) arranged one behind the other in the conveying direction, which can be activated in a clocked manner independently of each other.
- A device according to Claim 5 or 6, characterized in that above the suction box (12) and above the conveying plane a downwardly blowing blow nozzle (15) is arranged, in order to press the sheet trailing edge downward onto the suction box (12).
- A device according to any one of Claims 1 to 7, characterized in that in the rear stacking region additional suction boxes (31) are arranged, which in each case extend alongside the transporting-air bars, to prevent an uncontrolled lowering of a sheet.
- A device according to any one of Claims 1 to 8, characterized in that directly over the overlap region a suction nozzle (32) is arranged, which exerts an additional holding force on the sheet front edge and the sheet upper side of a sheet (5), while the latter moves with high speed over the overlap region.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012207064A DE102012207064A1 (en) | 2012-04-27 | 2012-04-27 | Device for shingling and placing sheets on a stack |
PCT/EP2013/056248 WO2013160045A1 (en) | 2012-04-27 | 2013-03-25 | Apparatus for imbricating sheets and depositing them on a stack |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2841367A1 EP2841367A1 (en) | 2015-03-04 |
EP2841367B1 true EP2841367B1 (en) | 2017-06-21 |
Family
ID=47998435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13712539.9A Not-in-force EP2841367B1 (en) | 2012-04-27 | 2013-03-25 | Apparatus for imbricating sheets and depositing them on a stack |
Country Status (10)
Country | Link |
---|---|
US (1) | US9302874B2 (en) |
EP (1) | EP2841367B1 (en) |
JP (1) | JP6173434B2 (en) |
CN (1) | CN104364175A (en) |
BR (1) | BR112014026510A2 (en) |
CA (1) | CA2871717A1 (en) |
DE (2) | DE102012207064A1 (en) |
ES (1) | ES2639951T3 (en) |
WO (1) | WO2013160045A1 (en) |
ZA (1) | ZA201407654B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012214629A1 (en) | 2012-08-17 | 2014-02-20 | Bielomatik Leuze Gmbh + Co. Kg | Device for shingling and placing sheets on a stack |
ES2548352B1 (en) * | 2014-03-14 | 2016-07-13 | Jesus Francisco Barberan Latorre | VACUUM SYSTEM FOR HOLDING PARTS IN PRINTING MACHINES |
JP6662034B2 (en) * | 2015-12-25 | 2020-03-11 | ブラザー工業株式会社 | Sheet transport device |
DE102016206685A1 (en) * | 2016-04-20 | 2017-10-26 | Koenig & Bauer Ag | Display of a sheet-processing machine with a brake stations-the sheet brake and method for depositing sheets |
JP6833542B2 (en) * | 2017-02-08 | 2021-02-24 | 日東電工株式会社 | Tape collection method and tape collection device |
JP7433218B2 (en) * | 2017-06-14 | 2024-02-19 | ビーダブリュ ペイパーシステムズ シュトゥットガルト ゲゼルシャフト ミット ベシュレンクテル ハフツング | Apparatus and method for positionally defined conveyance of sheets |
DE102019102775A1 (en) | 2019-02-05 | 2020-08-06 | Koenig & Bauer Ag | Sheet processing machine with shaping device and upper suction transport |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI42666B (en) * | 1961-06-02 | 1970-06-01 | Jagenberg Werke Ag | |
GB1109130A (en) * | 1965-07-05 | 1968-04-10 | Hamilton Tool Co | Apparatus for conveying sheet material |
DE2348320C3 (en) * | 1973-09-26 | 1978-12-14 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Device for stacking individual sheets of the same length |
WO1994025384A1 (en) | 1993-05-05 | 1994-11-10 | Vits Maschinenbau Gmbh | Device for stream feeding of sheets onto a stack |
DE4343713C2 (en) * | 1993-12-21 | 1997-03-27 | Heinen Elektronik Gmbh | Tray for sheets arriving in a row and guided by a transport system |
DE4433912C2 (en) * | 1994-09-23 | 1996-07-11 | Ltg Lufttechnische Gmbh | Stacking device with upper panel guide |
DE19510364A1 (en) * | 1995-03-22 | 1996-09-26 | Bielomatik Leuze & Co | Device for processing sheet layers or the like |
JP4056812B2 (en) * | 2002-07-11 | 2008-03-05 | ハイニックス株式会社 | Cutting discharge device |
EP1882657B1 (en) * | 2006-07-26 | 2011-11-09 | Heidelberger Druckmaschinen Aktiengesellschaft | Braking system for sheets |
JP5224836B2 (en) * | 2008-01-30 | 2013-07-03 | 株式会社ミヤコシ | Cutting discharge device |
DE102008025667A1 (en) * | 2008-05-28 | 2009-12-10 | E.C.H. Will Gmbh | Conveyor for sheet layers and method for forming and conveying a scale flow from sheet layers |
JP2011011844A (en) * | 2009-06-30 | 2011-01-20 | Hinix Kk | Cutting-discharging device |
-
2012
- 2012-04-27 DE DE102012207064A patent/DE102012207064A1/en not_active Withdrawn
- 2012-04-27 DE DE202012013617.8U patent/DE202012013617U1/en not_active Expired - Lifetime
-
2013
- 2013-03-25 CN CN201380030302.7A patent/CN104364175A/en active Pending
- 2013-03-25 WO PCT/EP2013/056248 patent/WO2013160045A1/en active Application Filing
- 2013-03-25 CA CA2871717A patent/CA2871717A1/en not_active Abandoned
- 2013-03-25 EP EP13712539.9A patent/EP2841367B1/en not_active Not-in-force
- 2013-03-25 ES ES13712539.9T patent/ES2639951T3/en active Active
- 2013-03-25 BR BR112014026510A patent/BR112014026510A2/en not_active IP Right Cessation
- 2013-03-25 US US14/391,992 patent/US9302874B2/en not_active Expired - Fee Related
- 2013-03-25 JP JP2015507434A patent/JP6173434B2/en not_active Expired - Fee Related
-
2014
- 2014-10-21 ZA ZA2014/07654A patent/ZA201407654B/en unknown
Also Published As
Publication number | Publication date |
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DE202012013617U1 (en) | 2018-08-24 |
CA2871717A1 (en) | 2013-10-31 |
ES2639951T3 (en) | 2017-10-30 |
US20150069696A1 (en) | 2015-03-12 |
EP2841367A1 (en) | 2015-03-04 |
BR112014026510A2 (en) | 2017-06-27 |
WO2013160045A1 (en) | 2013-10-31 |
CN104364175A (en) | 2015-02-18 |
JP6173434B2 (en) | 2017-08-02 |
JP2015514651A (en) | 2015-05-21 |
DE102012207064A1 (en) | 2013-10-31 |
US9302874B2 (en) | 2016-04-05 |
ZA201407654B (en) | 2015-11-25 |
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