EP1479627B1 - Dispositif d'alignement de feuilles - Google Patents

Dispositif d'alignement de feuilles Download PDF

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Publication number
EP1479627B1
EP1479627B1 EP04102741A EP04102741A EP1479627B1 EP 1479627 B1 EP1479627 B1 EP 1479627B1 EP 04102741 A EP04102741 A EP 04102741A EP 04102741 A EP04102741 A EP 04102741A EP 1479627 B1 EP1479627 B1 EP 1479627B1
Authority
EP
European Patent Office
Prior art keywords
sheet
alignment cylinder
alignment
suction
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.)
Expired - Lifetime
Application number
EP04102741A
Other languages
German (de)
English (en)
Other versions
EP1479627A1 (fr
Inventor
Johann Eitel
Kurt Nagler
Johannes Schaede
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1479627A1 publication Critical patent/EP1479627A1/fr
Application granted granted Critical
Publication of EP1479627B1 publication Critical patent/EP1479627B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/10—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect side register
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/007—Feed tables with front stop arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/08—Holding devices, e.g. finger, needle, suction, for retaining articles in registered position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/105—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/106—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using rotary driven elements as part acting on the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/36—Positioning; Changing position
    • B65H2301/362—Positioning; Changing position of stationary material
    • B65H2301/3621—Positioning; Changing position of stationary material perpendicularly to a first direction in which the material is already in registered position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/20—Belt drives
    • B65H2403/21—Timing belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/40—Toothed gearings
    • B65H2403/48—Other
    • B65H2403/481—Planetary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/51—Cam mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/12—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/23—Coordinates, e.g. three dimensional coordinates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/24—Irregularities, e.g. in orientation or skewness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/20—Acceleration or deceleration
    • B65H2513/23—Acceleration or deceleration angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/60—Details of processes or procedures
    • 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
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1315—Edges side edges, i.e. regarded in context of transport

Definitions

  • the invention relates to a device for aligning sheets according to the preamble of claim 1.
  • a device and a method for aligning sheets is known.
  • the orientation of the leading edge of the sheet is effected in such a way that the scale-like fed to the device sheet are fed at a conveying speed to an alignment in the device, which is at least slightly greater than the peripheral speed of the alignment.
  • At the periphery of the alignment cylinder front marks are arranged, at which the leading edge of the sheet can be brought to bear. Due to the relative speeds between the sheet and leading marks, the leading edge of the sheets is at least slightly slowed down at the leading brands, thereby aligning the leading edge of the sheet.
  • the sheet After the alignment of the leading edge of the sheet, the sheet is fixed in the region of the front edge by applying a negative pressure to a suction strip, so that the sheet wraps around the alignment cylinder on the circumference due to the continuous rotational drive of the alignment cylinder.
  • the lateral offset of a side edge of the sheet is measured by means of a measuring device.
  • the squeegee on which the leading edge of the sheet is fixed is axially displaced axially in the direction of the axis of rotation of the alignment cylinder to thereby align the side edge of the sheet in accordance with the desired target orientation.
  • a device for sheet feeding for a sheet-fed rotary printing press in which the sheets are scaled on a feed table to the device out and away from the device.
  • suction rolls To promote the sheet resting on the feed table the use of suction rolls is described, on the entire circumference recesses are provided.
  • the suction roll is arranged in such a way in a recess of the feed table, that the sheet surface on the feed table resting and tangentially on the periphery of the suction roll are driven adjacent fitting. This ensures that the sheets come into contact with the suction roll only in a linear contact area, wherein the driving forces are transmitted from the suction roll in the linear contact area frictionally engaged on the sheet. A wrap of the suction rolls through the arc is thus not required.
  • a device with a suction drum on whose circumference the sheets to be transported are frictionally fixable by applying a negative pressure.
  • the drive of the suction drum is designed such that the speed and / or the angle of rotation of the suction drum can be controlled by an independent electric motor according to predetermined laws of motion.
  • a sheet feeder for printing machines is known in which the lateral offset of a side edge of the sheet is detectable relative to a desired orientation with a measuring device.
  • To align the side edge of the sheet can be adjusted axially in the direction of its axis of rotation depending on the measurement result, an alignment, on the circumference of the sheet is fixed.
  • a device for measuring the position of the side edge of a sheet is known.
  • This measuring device consists essentially of 2 measuring heads, which are used to measure the position of the side edge with at the periphery of a Conveying roller arranged query gaps interact.
  • the measuring heads are mounted by hand on a traverse arranged above the sheet conveying plane.
  • the invention has for its object to provide a device for aligning sheets.
  • the sheets can be aligned during the promotion by the alignment cylinder at the same time with respect to its front edge, as well as with respect to a side edge.
  • the orientation of the sheet with respect to its side edge can be advantageously achieved in that the alignment cylinder is adjusted axially in the direction of its axis of rotation after the alignment of the leading edge to the front marks.
  • the drive motor can be controlled or regulated for the rotational drive of the alignment cylinder as a function of predetermined laws of motion, in particular as a function of the angle of rotation. This makes it possible by variation of the rotational speed of the alignment during a cycle and bow of different lengths to take correct position at the front and accurately pass to downstream sheet transport facilities.
  • Fig. 1 shows a device 02 for aligning sheet 01 in cross-section.
  • Such devices are used to align scaly from a scarfing device, not shown fed sheet in the correct position, so that the sheet, for example, exactly aligned z. B. can be passed to a downstream sheet-fed press.
  • the sheets 01 are fed to the device 02 lying one behind the other in such a way that in each case the front edge 07 of the respective rear sheet 01 comes to rest under the respective sheet 01 lying in front of it.
  • the device 02 serves in particular to align the flake-fed sheet 01 during transport in the device 02 with respect to the front edge 07 and with respect to a side edge in the correct position, so that the sheet 01 after leaving the device 02 a downstream device 03,
  • a transfer cylinder 03 a sheetfed press can be fed in the correct position.
  • To align the sheet 01 in the device 02 is an alignment cylinder 04, which is essentially composed of a drive shaft 05 and spaced thereon arranged suction rollers 06. (see Fig. 4).
  • the alignment cylinder 04 has a diameter of 140 mm to 150 mm, in particular a diameter of about 144 mm.
  • the function of the device 02 when aligning the leading edge 07 of the sheet 01 is shown in particular in FIGS. 2 and 3.
  • Fig. 2 the upper part of the trained in the manner of a suction roller 06 alignment cylinder 04 is shown.
  • a front mark is on the circumference of the alignment cylinder 04 08 attached to the front side, the leading edge 07 of the sheet 01 can come to rest to align the leading edge 07 of the sheet 01.
  • the alignment cylinder 04 is driven at a peripheral speed which is at least slightly smaller than the conveying speed of the sheet 01 on a feed table 09.
  • the sheets 01 are fed to the device 02 in synchronism with the movement of the front mark 08, so that in each case a front edge 07 in the Contact area of the front brand 08 can get.
  • the leading edge 07 runs on the leading edge 08 and can thereby be aligned continuously during the contact phase between leading edge 07 and leading edge 08. It has proven to be favorable when the peripheral speed of the alignment 04 at least temporarily during contact between the leading edge 08 and leading edge 07 of the sheet 01 about 0.7 times to 0.9 times, in particular 0.8 times the Conveying speed of the scaly sheet 01 immediately before contact between the leading edge 08 and leading edge 07 of the arc corresponds. "Immediately before contact " means "first contact”. The alignment cylinder 04 makes it per conveyed sheet 01 a revolution.
  • the front marks 08 has a height of 2 mm to 4 mm, in particular a height of 3 mm, over the circumference of the alignment cylinder 04.
  • the aligning cylinder 04 opposite a sheet hold-down roller 11 is arranged.
  • a recess 12 is provided on the circumference of the sheet hold-down roller 11, in such a way that, as is apparent in particular from FIG. 3, the leading mark 08 can be received without contact on the alignment cylinder 04 when passing the gap between alignment cylinder 04 and sheet hold-down roller 11.
  • the sheet hold-down roller 11 is driven by a corresponding gear arrangement with a ratio of 1: 1 of the alignment cylinder 04, so that alignment cylinder 04 and sheet hold-down roller 11 synchronously move each other.
  • the outer diameter of the sheet hold-down roller 11 is formed spirally, wherein the largest radius of the sheet hold-down roller 11 is arranged approximately in the region of the recess 12 for the front mark 08. It is thereby achieved that the gap between sheet hold-down roller 11 and alignment cylinder 04 is minimized during the alignment phase of the leading edge 07, respectively. During the further circulation of the sheet hold-down roller 11, the gap is subsequently enlarged again so as not to hinder the conveyance of the sheets 01.
  • the stabilization of the sheet 01 during alignment with the front mark 08 is a hold-down plate 13 that is disposed in the inlet region 14.
  • the feed table 09 and / or the hold-down roller 11 and / or the hold-down plate 13 can be adjustably mounted in height relative to the alignment cylinder 04.
  • the distance between the tangent plane 16, measured when passing through the maximum radius of the sheet hold-down roller 11, should have a distance of about 0.8 mm to the top 17 to feed table 09.
  • the alignment cylinder 04 is arranged in the manner below the feed table 09 that the sheet 01 come to rest substantially tangentially on the circumference of the alignment cylinder 04. Deviating from an ideal tangential arrangement of the alignment cylinder 04, however, slightly shifted upward, so that the tangent plane 19 extends to the alignment cylinder 04 with a slight distance, for example, 0.5 mm, above the top 17 of the feed table 09. This achieves, as can be seen in particular from FIG. 3, that a sheet 01 is slightly raised in the area of contact with the delivery cylinder 04, so that an optimal abutment of the sheet 01 on the circumference of the alignment cylinder 04 is possible and the drive forces are frictionally engaged in a sufficiently large contact surface are transferable.
  • a suction member 21st On the inside of the suction roller 06 is a suction member 21st arranged.
  • a suction chamber 22 is provided, from which by means of a vacuum source, not shown, permanently generates air and is sucked off, so that in the suction chamber 22, a negative pressure of 0.2 to 0.6 bar prevails.
  • the leading edge 07 of the sheet 01 is already aligned in the correct position and is located at the front mark 08 at.
  • the sheets are 01 during the entire time of promotion by the device 02 substantially flat in the sheet plane, which is defined by the top 17 of the feed table 09.
  • the sheet 01 is fixed in the device 02 by at least one recess 23, which are provided starting from the front mark 08 in succession on the circumference of the suction roll 06, on the suction roll 06, so that the suction roll 06 with the Sheet 01 is frictionally connected in each case in a rectangular contact area and can drive the sheet 01.
  • the displacement of a side edge of the sheet 01 relative to a predetermined desired orientation is determined by means of a measuring device, not shown.
  • the sheet 01 is displaced transversely to the conveying direction until the side edge runs along the desired orientation.
  • the alignment cylinder 04 axially in the direction of its axis of rotation, that is, as shown in FIG. 1 off or in the drawing plane, are moved.
  • the alignment cylinder 04 is fixed together with the drive shaft 05 in a first frame part 24, which in turn is mounted axially in the direction of the axis of rotation of the alignment cylinder 04 on a frame permanently mountable second frame member 26 (Fig. 4).
  • the first frame part 24 may be designed, for example, as a roller-mounted linear unit and engage with a prismatic linear guide 27 on the second frame part 26.
  • the alignment cylinder 04 in particular together with the first displaceably mounted frame part 24, with up to +/- 15 m / s 2 linearly accelerated in the direction of the axis of rotation of the alignment cylinder 04 and braked.
  • the transverse adjustment device 32 is designed such that the alignment cylinder 04, in particular together with the first displaceably mounted frame part 24, from a zero position by up to +/- 8 mm, in particular by up to +/- 5 mm, linearly in the direction of the axis of rotation of the Alignment cylinder 04 is adjustable.
  • Fig. 4 the device 02 along the section line -
  • a total of six suction rollers 06 are rotatably disposed to promote the located between the sheet hold-down roller 11 and the feed table 09 sheet 01 in the conveying direction.
  • the drive shaft 05 is rotatably mounted on bearings 28 by means of schematically illustrated roller bearings on the first frame part 24 and can be driven by a drive motor 29 rotationally.
  • the drive motor 29 is also attached to the first frame part 24 and drives synchronously to the drive shaft 05 via a gear 31, the sheet hold-down roller 11 at.
  • the sheet hold-down roller 11 is fixed to the first frame member 24, so that as a result linear movement of the first frame member 24, the drive shaft 05 together with the suction rollers 06, the drive motor 29, the gear 31 and the sheet hold-down roller 11 linearly in the direction of the movement arrow, that is in the direction the axis of rotation of the drive shaft 05 can be moved from a zero position in both directions.
  • a motor, for. B. linear motor 32 whose linearly driven output shaft acts on the left end of the first frame part 24.
  • the first frame part 24 By driving the linear motor 32, the first frame part 24 can be moved transversely to the conveying direction of the sheet 01, so that thereby the aligned side edge of the sheet 01 can be aligned in accordance with the previously determined measurement result corresponding to the desired target orientation.
  • the drive motor 29 for rotational drive of the drive shaft 05 can be controlled and regulated in dependence on predetermined laws of motion, in particular as a function of the angle of rotation of the suction rollers 06.
  • acceleration, speed or rotation angle of the drive motor 29 can be specified to achieve a desired motion kinematics, so that in particular sheets of different lengths can be conveyed with identical suction rolls and transferred or transferred with the correct pass.
  • leading marks 08 on the circumference of the alignment cylinder 04 with up to +/- 0.35 m / s 2 can be accelerated or braked.
  • FIG. 5 shows a second embodiment of a device 40.
  • drive shaft 41 On a driven by a drive motor, not shown drive shaft 41 a total of four suction rollers 42 are mounted spaced apart.
  • two front marks 43 are arranged, which extend slightly over the top 44 of the feed table 46 with a corresponding position of the drive shaft 41.
  • each suction elements 47 are provided on the inside of the suction rolls, which are fixedly secured to a first frame part 48.
  • the first frame part 48 is corresponding to the Device 02 is mounted linearly displaceable on a second frame part 49 and can be driven transversely to the conveying direction of the sheet 01 by means of a drive motor 51 (FIG. 6) not shown in FIG.
  • the power transmission from the drive motor 51 to the first frame part 48 takes place via a cam gear 52, so that the first frame member 48 together with the drive shaft 41, the suction rollers 42, the feed table 46 and a drive motor, not shown for rotational drive of the drive shaft 51 from a zero position according to the movement arrow 53 linearly transversely to the conveying direction of the sheet 01 can be driven.
  • a device 40 in cross section.
  • a sheet hold-down roll 54 is arranged, the outer circumference of which is spirally formed, so that the gap between the sheet hold-down roll 54 and the suction rolls 42 is reduced or increased depending on the rotation angle of the leading marks 43.
  • the sheet 01 After fixing the sheet 01 to the suction rollers 43 and during or after the alignment of the side edges of the sheet 01, the sheet 01 are accelerated or decelerated by appropriate drive of the suction rollers 42 so that the sheet 01 fit to a downstream device 56, for example a transfer roller 56, can be transferred.
  • a downstream device 56 for example a transfer roller 56
  • Fig. 7 is a sheet system 59 for conveying and aligning sheet 01 with a device 02; 40 shown in perspective.
  • a frame 61 an alignment cylinder 62 and a transfer roller 63 are arranged one behind the other in the conveying direction of the sheet 01.
  • the alignment cylinder 62 can be rotationally driven by an angle-dependent controllable drive motor 65.
  • the orientation of the side edges of the sheet 01 can be arranged on the input side of the sheet system 59 measuring device 64, z. B. measuring heads 64 are measured.
  • the sheet feeder 59 serves to align the sheets 01 with respect to their front edge 07 and a side edge and to accelerate the sheets 01 to these ever to pass accurately to length to the downstream transfer roller 63 according to length.
  • Fig. 8 the sheet system 59 is shown in perspective from the opposite side.
  • Fig. 9 is a section through the sheet system 59 is shown in perspective. It can be seen the feed table 66, on which the sheets are 01 01 flat lying on a scale of the sheet system 59 fed.
  • the alignment cylinder 62 is in turn composed essentially of a drive shaft 67 and two suction rollers 68 mounted on the drive shaft. At the periphery of the suction rollers 68, a plurality of recesses 76 are arranged one behind the other and next to each other, so that a sheet 01 can be sucked for fixing to the suction rollers 68 by means of negative pressure. It can be seen that the recesses 76 begin immediately behind the front marks 69 and extend in the circumferential direction over a rotational angle range of approximately 200 °.
  • the sheet 01 can be fixed frictionally on the circumference of the suction rollers 68 from 0 ° corresponding to the abutting edge of the front end 69, via a rotation angle of the suction roller 68 of 130 ° to 200 °.
  • a special valve control for switching on or off of the negative pressure is therefore not required. Rather, in the suction chamber permanently negative pressure can be applied, since the sheets 01 are then automatically not fixed to the suction rollers 68 when the closed-trained rotation angle range of the suction rollers 68 is above the suction chamber.
  • the choice of the size of the rotation angle range with recesses is to be determined depending on the sheet size to be processed.
  • retaining elements 71 are provided for fixing the sheets 01 after transfer, fixing the leading edge of the sheets to the transfer roller 63.
  • the alignment cylinder 62 is shown in the disassembled state.
  • the drive shaft 67 is mounted on three bearing points 72 on a first frame part 73 and can be driven in rotation by means of a drive motor, not shown, arranged at the end 74.
  • the front marks 69 on the suction rolls 68 divide the circumference of the suction rolls 68 into a first region with recesses 76 and into a second region without recesses.
  • the first frame part 73 is mounted in sliding sleeves 77 linearly displaceable in the direction of the axis of rotation of the drive shaft 67 on the frame 61 and can be adjusted with a drive motor 78 transversely to the conveying direction of the sheet 01.
  • Fig. 11 the assignment of a sheet 01 to the alignment cylinder 62 during operation of a sheet system 59 is shown.
  • the leading edge 07 of the sheet 01 is aligned with the leading marks 69 by respective relative speeds between the leading edge 07 and the leading marks 69.
  • the sheet 01 is fixed in the contact area between the suction rollers 68 and the sheet lower side by the recesses 76 reach the area above the suction chamber acted upon by negative pressure.
  • a relative movement between the sheet 01 and alignment cylinder 62 is excluded transversely to the conveying direction.
  • the entire first frame part 73 can be adjusted transversely to the conveying direction 81 according to the movement arrow 82 linearly.
  • Fig. 12 shows the transfer roller 63 with the holding elements 71, a drive shaft 83 and a drive gear 84.
  • the transfer roller 63 is fixed on both sides with bearings 86 on the frame 61.
  • a bow guide 87 for use in the device 59 is shown in the disassembled state.
  • hold-down plates 88 By means of hold-down plates 88, the maximum distance between the sheet 01 and the top of the investment table 66 is limited. The hold-down plates 88 can thereby be raised or lowered in an oscillating manner.
  • FIGS. 14 to 16 show the alignment of a sheet 01 with respect to its front edge 07 and with respect to the right side edge 79 during the different phases of the conveyance on the alignment cylinder 62.
  • the sheet 01 is conveyed at a conveying speed in the conveying direction 81 which is approximately 20% greater than the peripheral speed of the conveying marks 69 on the circumference of the suction rolls 68.
  • the sheet 01 after the orientation of the leading edge 07 by continuous rotational drive of the suction rollers 68 in the conveying direction 81 further promoted.
  • the sheets 01 remain even during the promotion by the suction rollers 68 surface on the feed table 66, which is formed in the region above the suction rollers 68 by a three-piece plate 89, lie.
  • the position of the right side edge 79 is measured by means of the measuring head 64, not shown.
  • the motor 78 begins to accelerate to drive the drive shaft 67 to bring the sheet 01 to the desired conveying speed in the conveying direction 81.
  • FIG. 17 shows, in three diagrams, the path, the speed and the acceleration of the suction roll circumference over the rotation angle.
  • a first phase P1 the peripheral speed is kept constant.
  • the leading edges 07 of the sheets 01 engage the front marks 69 and are thereby aligned.
  • the sheet 01 is aligned with respect to its leading edge 07 and is fixed by applying a negative pressure to the suction roll 68.
  • the suction rolls 68 and thus the sheet 01 adhering thereto are accelerated in such a way that the sheets 01 have a speed corresponding to the peripheral speed of the transfer roll 63 until the time of transfer to the downstream transfer roll 63.
  • this speed is again kept constant in order to allow a clean transfer of the sheets 01 to the transfer roller 63.
  • the sheets 01 are released from the suction roller 68 in that no recesses 76 are provided on the circumference of the suction roller 68 at the corresponding angle of rotation.
  • the sheets 01 are moved transversely to the conveying direction 81 during the phases P2 and P3, in order thereby to produce a side edge 79 corresponding to one align desired target alignment.
  • the sheet 01 is completely detached from the suction rolls 68 and is now driven by the downstream transfer roll 63.
  • the drive shaft 67 must be driven such that the circumferential speed of the suction rollers 68 after a full rotation, ie after 360 °, straight again corresponds to the Zuureissus the sheet 01 from the shingling device.
  • the suction rollers 68 may be necessary to decelerate up to the speed zero and to drive against the rotation direction required for the promotion of the sheet 01. Starting from the largest negative acceleration, the suction rollers 68 are then just accelerated so that the circumferential speed after a full revolution just the desired peripheral speed for clean acquisition of the sheet 01 from the shingling device corresponds.
  • Fig. 18 shows the travel, the speed and the acceleration of the suction rollers 68 transversely to the conveying direction 81 during one revolution.
  • the diagrams assume a maximum travel of 5 mm from the zero position.
  • a first phase Q1 no transverse movements are performed.
  • the position of the aligned side edge 79 is measured with the measuring device.
  • the suction rollers 68 are accelerated transversely to the conveying direction 81 and then decelerated again until the suction rollers 68 have traversed a travel of 5 mm measured transversely to the conveying direction 81 of the sheet 01.
  • At the end of the phase Q2 corresponds to the actual position of the aligned side edge 79 of the desired target orientation.
  • FIG. 19 shows a device 101 for measuring the position of the side edge 79 of a sheet 01, as may be used, for example, in a sheet feeder 59 as shown in FIG. 7.
  • two measuring heads 64 are provided, with each of which the position of a side edge 79 of a sheet 01 can be determined.
  • a correlating measuring signal is emitted by the measuring heads 64, which can be evaluated in a system control.
  • the side edge 79 of the sheet 01 to be measured must each be arranged such that the measuring head 64 is positioned above and below the side edge 79.
  • the measurement itself is based on an optical system with the aid of light beams, as described for example in EP 07 16 287 A2.
  • the measuring heads 64 are mounted transversely to the conveying direction 81 of the sheet 01 linearly along the movement arrows 102 and 103, respectively.
  • the measuring heads 64 are each mounted on slides 104, each in a linear guide, not shown, between the plates 106; 107 can be moved.
  • the carriages 104 are in this case via a gear arrangement (not shown in FIG. 19) from one below the plates 106; 107 arranged drive motor 108 driven.
  • the top of the cover 109 extends in the plane, namely the sheet plane, by the flat resting the sheet 01 on the plates 106; 107 is defined.
  • Fig. 20 shows the device 101 in a perspective view from below. It can be seen in particular the drive motor 108, which transmits 111 positioning movements on two drive wheels 112 via a toothed belt. For tensioning the toothed belt 111, a tension roller 113 is provided.
  • the two toothed racks 114 are driven by the drive wheels 112 via two drive pinions 121 (FIG. 22), which are connected in a rotationally fixed manner to the drive wheels 112 and not shown in FIG. 20, wherein both toothed racks 114 are each connected to a carriage 104 of a measuring head 64.
  • the drive wheels 112 and the associated drive pinion 121 are each fixed by a bracket 115 fixed to the frame 106 or 107 on the plates.
  • Fig. 21 shows the device 101 in a side view from behind.
  • the toothed racks 114 are fastened to the carriage 104 in such a way that the toothing comes into engagement with respectively opposite sides of the drive pinions (not shown in FIG. 21).
  • a linear adjusting movement of the toothed belt 111 for example, according to the movement arrow 116, oppositely directed adjusting movements of the measuring heads 64 corresponding to the movement arrows 117; 118 causes.
  • Fig. 22 shows the device 101 in a side view from one side.
  • the carriage 104 is linearly displaceable in a formed by two grooves linear guides 119 on the plates 106; 107 stored.
  • the measuring head 64 is attached, which serves as an electronic side mark.
  • the carriage 104 is driven by the rack 114, whose teeth mesh with a drive pinion 121.
  • the drive pinion 121 in turn is non-rotatably connected to the drive wheel 112 which is driven by the drive motor 108 via the toothed belt 111.
  • FIG. 23 shows a longitudinal section through the device 101.
  • the drive of the measuring heads 64 with the drive motor 108, the toothed belt 111, the drive wheels 112, the drive pinion 121 and the mirror-offset racks 114 can be seen.
  • a cover element 109 associated with the measuring heads 64 is shown in FIG.
  • the cover elements 109 are formed like a chain and thus elastically deformable in the direction of its longitudinal axis.
  • the respective outer end of the cover elements 109 is attached to a respective carriage 104 and can thus be moved together with the measuring head 64 by driving the drive motor 108.
  • each two holding plates 122; 123 are provided, which are arranged opposite to each other and serve as guide means for each cover 109.
  • On the inside of the holding plates 122; 123 are each complementary shape grooves 124 incorporated extending from the linear linear guide 119 arcuate downward.
  • FIG. 24 shows the arrangement for driving the measuring heads 64 by means of the drive motor 108 without the cover elements 109 and the plates 106 and 107, respectively.
  • FIGS. 25 to 27 show enlarged sections of the drive device for the carriages 104 and measuring heads 64, respectively.
  • FIGS. 28 to 31 show a coupling consisting of the coupling parts 130, 131, 144 for transmitting a drive torque to an axially adjustable drive shaft 67 or its essential individual parts.
  • a coupling 130, 131, 144 can be used in particular to the drive torque of a drive motor on the axially adjustable alignment cylinder of a device 02; 40; 101 to transmit.
  • By using such a coupling 130, 131, 144 it becomes possible to drive the motor to mount fixedly to the rotational drive of the alignment, so that the mass to be accelerated in the adjusting movement for aligning the side edge 79 is reduced.
  • the coupling 130, 131, 144 is composed essentially of three parts, which are shown in Figs. 28 to 30.
  • the first coupling part 130, 131 is composed of two coupling parts 130 (FIG. 28) and 131 (FIG. 29).
  • Both coupling parts 130; 131 each have recesses 132; 133; 134, which is slightly larger than the diameter of the associated shaft 67, for example, the drive shaft 67 of the alignment cylinder 62.
  • On the inside of the recesses 132; 133; 134 each keyway grooves 136, 137 and 138 are provided, which are arranged with a arranged on the drive shaft 67, not shown keyway momentarily engageable.
  • this has a slit 139, so that the first coupling part 130 by means of tightening a clamping screw, not shown in the thread 141 frictionally engaged on the associated drive shaft 67 can be fastened.
  • a clamping screw not shown in the thread 141 frictionally engaged on the associated drive shaft 67
  • disposed on the associated drive shaft 67 end of the second coupling part 131 is fork-shaped with two arms 142 and 143, wherein the recesses 133; 134 are aligned with each other on the arms 142 and 143 are attached.
  • the distance between the arms 142 and 143 is chosen so that the plate-shaped coupling part 130 with the arranged on the associated drive shaft 67 end between the arms 142; 143 can be arranged axially backlash.
  • a second coupling part 144 which can cooperate in the transmission of torque with a composite of the coupling parts 130 and 131 first coupling part 130, 131.
  • the coupling part 144 has a crank, so that the radially outer end 146 of the second coupling part 144 projects beyond the end 147 of the associated shaft 148.
  • the second coupling part 144 On the first coupling part 130, 131 side facing the radially outer end 146 is the second coupling part 144 fork-shaped and extends with two arms 149 and 151 in the direction of the first coupling part 130, 131.
  • On the arms 149 and 151 and on an oppositely disposed abutment 152 each axle bearing 153 are mounted, in which the axes of rotation of rolling elements 154 (FIG. 31) can be fastened.
  • the axle bearings 153 are arranged so that the rotation axis 156 parallel to the outer sides 157; 158 of the coupling parts 130; 131, which engage with the rolling elements 154, extend.
  • the function of the coupling 130, 131, 144 which consists of the second coupling part 144 and the coupling part 130 and 131 composed of the first coupling part 130, 131 is illustrated by Fig. 31.
  • the coupling parts 130 and 131 on the one shaft end and the second coupling part 144 on the opposite end of the shaft are the outer sides 157; 158 of the coupling parts 130; 131 on the inside of the rolling elements 154 at.
  • the coupling part 130 is fixed in place and fixed the coupling member 131 due to the arrangement between the arms 142 and 143 axially on the shaft end.
  • the feather key grooves 137; 138 of the second coupling part 131 are slightly wider than the feather key piece on the drive shaft 67, so that the second coupling part 131 can be at least slightly rotated on the drive shaft 67.
  • a spring element 159 is arranged, which elastically braces the coupling part 131 against the coupling part 130 and spreads apart the two coupling parts 130 and 131, respectively.
  • a resilient backlash-free seat of the outer sides 157 and 158 is ensured at the rolling elements 154 at any time.
  • FIG. 32 and Fig. 33 the use of a coupling 130, 131, 144 with the coupling parts 130 and 131, and the second coupling part 144 in a sheet system 59 is shown in top view.
  • a sheet 01 has just reached the leading marks 69 on the suction rolls 68, so that the front edge 07 of the sheet 01 is aligned.
  • the feed table 66 which is adjustable axially together with the suction roller 68 and the drive shaft 67 in the direction of the axis of rotation of the drive shaft 67, is in its zero position in this phase and can be adjusted according to the movement arrow 161 to the right and left by a linear drive, not shown ,
  • the drive torque required for driving the drive shaft 67 and thus for conveying the sheet 01 is generated by a drive motor 162 and transmitted via the second coupling part 144 and the coupling parts 130 and 131 to the drive shaft 67.
  • the sheet feeder 59 is shown in a later process phase, to which the sheet 01 for aligning one of its side edges 79 has already been moved transversely to the conveying direction 81.
  • the required alignment movement is directed in the illustration of FIG. 35 to the right, which in particular from the edge offset 163 between the Au texkante the feed table 66 and the outer edge of the following device is recognizable.
  • the feed table 66 and the drive shaft 67 with the coupling parts mounted thereon 130 and 131 is axially adjusted in the direction of the axis of rotation of the drive shaft 67.
  • the drive motor 162 was driven by an angle of about 90 ° to drive the sheet 01 in the conveying direction 81.
  • the compensation of the axial offset of the drive shaft 67 relative to the drive motor 162 is made possible by rolling the coupling parts 130 and 131 on the rolling elements 154.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Pile Receivers (AREA)
  • Liquid Crystal (AREA)

Claims (38)

  1. Dispositif d'alignement de feuilles (01) avec un cylindre d'alignement (04), le cylindre d'alignement (04) présentant au moins un taquet avant (08) pour aligner le bord avant (07) des feuilles (01), caractérisé en ce que la vitesse périphérique du cylindre d'alignement (04) est, au moins par moments, pendant le contact entre le taquet avant (08) et le bord avant (07) de la feuille (01), de 0,7 fois à 0,9 fois la vitesse de transport des feuilles (01), directement avant le contact entre le taquet avant (08) et le bord avant (07) de la feuille (01).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'au moins un évidement (23) est disposé sur la périphérie du cylindre d'alignement (04), sachant que la feuille (01) peut être fixée, au moins par tronçons, par une liaison par friction, sur la périphérie du cylindre d'alignement (04), par application d'un vide dans l'évidement (23).
  3. Dispositif selon la revendication 1, caractérisé en ce qu'est disposé un dispositif de mesure (64), à l'aide duquel le décalage d'un bord latéral (79) de la feuille (01), par rapport à un alignement de consigne prédéterminé, peut être déterminé, et avec un dispositif de réglage transversal, pour aligner de façon régulée ou commandée un bord latéral (79) de la feuille (01), en fonction du résultat de mesure du dispositif de mesure (64).
  4. Dispositif selon la revendication 1, caractérisé en ce qu'un moteur d'entraînement (29) est disposé, de façon pouvant être commandée ou régulée, pour assurer l'entraînement en rotation du cylindre d'alignement (04), son accélération et/ou sa vitesse et/ou l'angle de rotation selon des lois cinématiques déterminées, en fonction de l'angle de rotation du cylindre d'alignement (04).
  5. Dispositif selon la revendication 1, caractérisé en ce qu'une table de margeur (09) est disposée, sachant que le cylindre d'alignement (04) est disposé au-dessous ou au-dessus de la table de margeur (09), de manière que la périphérie du cylindre d'alignement (04) puisse être mise en appui sensiblement tangentiellement en au moins une zone de contact sur une feuille (01), de sorte que, dans la zone de contact, des efforts d'entraînement, intervenant par une liaison à friction, puissent être transmis du cylindre d'alignement (04) à la feuille (01).
  6. Dispositif selon la revendication 1, caractérisé en ce que le cylindre d'alignement (04) est disposé de façon réglable axialement en direction de son axe de rotation, au moyen du dispositif de réglage transversal.
  7. Dispositif selon la revendication 5, caractérisé en ce que la table de margeur (09) est disposée de façon réglable, conjointement avec le dispositif de réglage transversal, axialement en direction de l'axe de rotation du cylindre d'alignement (04), au moyen du dispositif de réglage transversal.
  8. Dispositif selon la revendication 7, caractérisé en ce que le dispositif (02) est disposé de façon réglable axialement en direction de l'axe de rotation du cylindre d'alignement (04), globalement, au moyen du dispositif de réglage transversal, par rapport aux dispositifs (03) disposés à l'avant et/ou à l'arrière.
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la vitesse périphérique du cylindre d'alignement (04), au moins par moments, pendant la durée du contact entre des taquets avant (08) et le bord avant (07) de la feuille (01), correspond à peu près à 0,7 fois jusqu'à 0,9 fois la vitesse de transport des feuilles (01), placées en formation en nappe ou écailles lors de l'amenée au dispositif (02).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que le cylindre d'alignement (04), après l'alignement du bord avant (07), est susceptible d'être accéléré à une vitesse périphérique qui correspond à la vitesse de transport d'un dispositif (03) installé en aval.
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que le cylindre d'alignement (04), après le transfert de la feuille (01) au dispositif (03) installé en aval, est susceptible d'être freiné, de manière que la vitesse périphérique du cylindre d'alignement (04), au moment auquel les taquets avant (09) atteignent de nouveau la zone de contact avec la feuille (01), corresponde à la vitesse de transfert des feuilles (01) placées en formation en nappe ou en écailles lors de l'amenée au dispositif (02).
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que le cylindre d'alignement (04), pendant une rotation dans la phase (P1 à P4), entre le transport de deux feuilles (01) se suivant l'une l'autre, au moins brièvement, est susceptible d'être entraîné à l'encontre du sens de rotation nécessaire pour le transport des feuilles (01).
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce que les taquets avant (08), sur la périphérie du cylindre d'alignement (04), sont susceptibles d'être accélérés et/ou freinés jusqu'à +/- 35 m/s2 avec le premier moteur d'entraînement (29).
  14. Dispositif selon l'une des revendications 1 à 13, caractérisé en ce que le cylindre d'alignement (04) présente un arbre d'entraînement (05), sur lequel, à distance, sont au moins disposés deux rouleaux aspirants (06), sachant que, sur chaque rouleau aspirant (06), est prévu au moins un taquet avant (04) et la périphérie des cylindres aspirants (06) peut venir en appui, au moins par tronçons, avec effet d'aspiration, sur la feuille (01).
  15. Dispositif selon la revendication 14, caractérisé en ce que à la périphérie d'un rouleau aspirant (06), en partant de la zone située derrière le taquet avant (08), sur un tronçon périphérique déterminé, sont disposés, les uns derrière les autres et/ou les uns à côté des autres plusieurs évidements (12), de manière qu'une feuille (01) puisse être fixée par application d'un vide chaque fois sur une plage d'angles de rotation, mesurée en partant du taquet avant (08), du rouleau aspirant (06), la fixation se faisant par une liaison par friction sur la périphérie du rouleau aspirant (06).
  16. Dispositif selon la revendication 15, caractérisé en ce que les évidements (12) sont disposés de manière qu'une feuille (01) en partant de 0°, de manière correspondante au bord du taquet avant (08) peut être fixée sur une plage d'angles de rotation du rouleau aspirant (06) de 130° à 200° par une liaison par friction sur la périphérie du rouleau aspirant (06).
  17. Dispositif selon l'une des revendications 14 à 16, caractérisé en ce que le rouleau aspirant (06) tourne sur un élément aspirant (21) stationnaire, ayant au moins une chambre d'aspiration (22) raccordée à une source de vide, sachant que la chambre d'aspiration (22) est disposée sur la face intérieure du rouleau aspirant (06), de manière qu'au moins les évidements (23) du rouleau aspirant (06), qui se trouvent chacun dans la zone de contact entre le rouleau aspirant (06) et la feuille (01), soient susceptibles d'être sollicités au moins partiellement par un vide issu de la chambre d'aspiration (22).
  18. Dispositif selon la revendication 17, caractérisé en ce qu'un vide de 0,2 à 0,6 bars* peut être produit avec la source de vide.
  19. Dispositif selon l'une des revendications 1 à 18, caractérisé en ce que les taquets avant (08) présentent une hauteur de 2 mm à 4 mm sur la périphérie du cylindre d'alignement (04).
  20. Dispositif selon l'une des revendications 1 à 19, caractérisé en ce que le cylindre d'alignement (04) présente un diamètre de 144 mm à 150 mm.
  21. Dispositif selon l'une des revendications 1 à 20, caractérisé en ce qu'un rouleau de maintien abaissé de feuille (11) est disposé, axialement parallèlement à l'opposé du cylindre d'alignement (04), dans la zone de contact entre le cylindre d'alignement (04) et la feuille (01).
  22. Dispositif selon la revendication 21, caractérisé en ce que le rouleau de maintien abaissé de feuille (11) est entraîné en rotation, de façon synchrone avec le cylindre d'alignement (04).
  23. Dispositif selon la revendication 21 ou 22, caractérisé en ce que la périphérie extérieure du rouleau de maintien abaissé de feuille (11) est conformée en spirale.
  24. Dispositif selon la revendication 23, caractérisé en ce que le rouleau de maintien abaissé de feuille (11) est entraîné de manière que le diamètre maximal du rouleau de maintien abaissé de feuille (11) conformé en spirale, chaque fois pendant l'alignement du bord avant (04) d'une feuille (01), puisse venir en appui sur la feuille (01).
  25. Dispositif selon l'une des revendications 21 à 24, caractérisé en ce que, sur la périphérie du rouleau de maintien abaissé de feuille (11), sont prévus des évidements (12), pour obtenir un logement sans contact des taquets avant (08) du cylindre d'alignement (04).
  26. Dispositif selon l'une des revendications 21 à 25, caractérisé en ce que le rouleau de maintien abaissé de feuille (11) est manoeuvrable au moins légèrement en hauteur par rapport au cylindre d'alignement (04).
  27. Dispositif selon l'une des revendications 1 à 26, caractérisé en ce que la table de margeur (09) est manoeuvrable au moins légèrement en hauteur par rapport au cylindre d'alignement (04).
  28. Dispositif selon l'une des revendications 1 à 26, caractérisé en ce que le plan de tangente (19) sur le cylindre d'alignement (04) s'étend dans la zone de contact entre le cylindre d'alignement (04) et la feuille (01), avec un léger espacement, parallèlement par rapport à la face supérieure (17) de la table de margeur (09).
  29. Dispositif selon l'une des revendications 21 à 28, caractérisé en ce que le plan de tangente (16), sur le rouleau de maintien abaissé de feuille (11), mesuré lors du passage du rayon maximal du rouleau de maintien abaissé de feuille (11), s'étend avec un léger espacement par rapport à la face supérieure (17) de la table de margeur (09).
  30. Dispositif selon l'une des revendications 1 à 29, caractérisé en ce que dans le dispositif (02), au-dessus de la table de margeur (09), est prévue une tôle de maintien abaissé (13), à l'aide de laquelle l'espacement, entre la feuille (01) et la table de margeur (09), peut être limité, au moins par tronçons.
  31. Dispositif selon la revendication 30, caractérisé en ce que l'espacement, entre la tôle de maintien abaissé (13) et la table de margeur (09), est modifiable en fonction de l'angle de rotation du cylindre d'alignement (04).
  32. Dispositif selon la revendication 31, caractérisé en ce que l'espacement entre la tôle de maintien abaissé (13) et la table de margeur (09) est modifiable de façon oscillante chaque fois pendant une rotation du cylindre d'alignement (04), sachant que l'espacement pendant l'alignement du bord avant (07) de la feuille (01) sur les taquets avant (08) est diminué à une valeur d'espacement minimale, en particulier à un espacement correspondant à peu près au quadruple de l'épaisseur de la feuille (01), sachant que l'espacement est augmenté pendant la continuation du transport de la feuille (01) par le cylindre d'alignement (07), jusqu'à atteinte d'un espacement maximal.
  33. Dispositif selon l'une des revendications 1 à 32, caractérisé en ce qu'au moins le cylindre d'alignement (04) et/ou le premier moteur d'entraînement (29) et/ou la table de margeur (09) sont montés sur une première partie de cadre (24), sachant que la première partie de cadre (24) est montée de façon manoeuvrable axialement en direction de l'axe de rotation du cylindre d'alignement (04), sur une deuxième partie de cadre (26) pouvant être montée rigidement par rapport au bâti, et est susceptible d'être entraînée à l'aide du dispositif de réglage transversal.
  34. Dispositif selon la revendication 33, caractérisé en ce que la première partie de cadre (24) est réalisée sous la forme d'une unité linéaire, montée sur palier à roulement.
  35. Dispositif selon la revendication 33 ou 34, caractérisé en ce que la première partie de cadre (24) est susceptible d'être entraînée avec un deuxième moteur linéaire (32), de façon linéaire, dans la direction de l'axe de rotation du cylindre d'alignement (04).
  36. Dispositif selon l'une des revendications 33 à 35, caractérisé en ce que, pour assurer la transmission d'efforts, entre le deuxième moteur d'entraînement (51) et une première partie de cadre (48), est disposée au moins une transmission, en particulier une transmission à filetage sphérique et/ou une transmission à disque à cames (52) et/ou une transmission planétaire.
  37. Dispositif selon l'une des revendications 1 à 36, caractérisé en ce que le dispositif de réglage transversal est réalisé de manière que le cylindre d'alignement (04) est susceptible d'être accéléré et/ou freiné jusqu'à +/-15 m/s2, de façon linéaire en direction de l'axe de rotation du cylindre d'alignement (04).
  38. Dispositif selon l'une des revendications 1 à 37, caractérisé en ce que le dispositif de réglage transversal (32) est réalisé de manière que le cylindre d'alignement (04) soit réglable depuis une position neutre, d'une valeur allant jusqu'à +/- 8 mm, de façon linéaire, dans la direction de l'axe de rotation du cylindre d'alignement (04).
EP04102741A 2000-12-15 2001-11-28 Dispositif d'alignement de feuilles Expired - Lifetime EP1479627B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10062819 2000-12-15
DE10062819 2000-12-15
EP01270479A EP1341712B1 (fr) 2000-12-15 2001-11-28 Dispositifs d'alignement de feuilles

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01270479A Division EP1341712B1 (fr) 2000-12-15 2001-11-28 Dispositifs d'alignement de feuilles

Publications (2)

Publication Number Publication Date
EP1479627A1 EP1479627A1 (fr) 2004-11-24
EP1479627B1 true EP1479627B1 (fr) 2006-04-05

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP01270479A Expired - Lifetime EP1341712B1 (fr) 2000-12-15 2001-11-28 Dispositifs d'alignement de feuilles
EP04102742A Expired - Lifetime EP1460009B1 (fr) 2000-12-15 2001-11-28 Dispositif d'alignement de feuilles
EP04102741A Expired - Lifetime EP1479627B1 (fr) 2000-12-15 2001-11-28 Dispositif d'alignement de feuilles

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EP01270479A Expired - Lifetime EP1341712B1 (fr) 2000-12-15 2001-11-28 Dispositifs d'alignement de feuilles
EP04102742A Expired - Lifetime EP1460009B1 (fr) 2000-12-15 2001-11-28 Dispositif d'alignement de feuilles

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US (1) US7156390B2 (fr)
EP (3) EP1341712B1 (fr)
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EP1341712B1 (fr) 2005-05-04
US20040051236A1 (en) 2004-03-18
EP1341712A2 (fr) 2003-09-10
DE50109466D1 (de) 2006-05-18
EP1460009A2 (fr) 2004-09-22
US7156390B2 (en) 2007-01-02
DE10137007A1 (de) 2002-06-20
EP1460009A3 (fr) 2004-11-17
EP1479627A1 (fr) 2004-11-24
AU2002256546A1 (en) 2002-06-24
ATE294760T1 (de) 2005-05-15
DE50109117D1 (de) 2006-04-27
DE50106144D1 (de) 2005-06-09
EP1460009B1 (fr) 2006-03-01
WO2002048012A3 (fr) 2003-01-23
WO2002048012A2 (fr) 2002-06-20
ATE322443T1 (de) 2006-04-15

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