EP1094023A2 - Dispositif de guidage de feuilles pour machines à travailler des feuilles imprimées - Google Patents

Dispositif de guidage de feuilles pour machines à travailler des feuilles imprimées Download PDF

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Publication number
EP1094023A2
EP1094023A2 EP00105378A EP00105378A EP1094023A2 EP 1094023 A2 EP1094023 A2 EP 1094023A2 EP 00105378 A EP00105378 A EP 00105378A EP 00105378 A EP00105378 A EP 00105378A EP 1094023 A2 EP1094023 A2 EP 1094023A2
Authority
EP
European Patent Office
Prior art keywords
sheet
guide element
guiding device
sheet guiding
cylinder
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.)
Withdrawn
Application number
EP00105378A
Other languages
German (de)
English (en)
Other versions
EP1094023A3 (fr
Inventor
Günter Stephan
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1094023A2 publication Critical patent/EP1094023A2/fr
Publication of EP1094023A3 publication Critical patent/EP1094023A3/fr
Withdrawn legal-status Critical Current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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • 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
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/51—Cross section, i.e. section perpendicular to the direction of displacement
    • B65H2404/512—Cross section, i.e. section perpendicular to the direction of displacement concave
    • 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
    • B65H2404/61—Longitudinally-extending strips, tubes, plates, or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • 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
    • B65H2701/132—Side portions
    • 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

Definitions

  • the invention relates to a sheet guide device for printing material sheets processing machines, with a guide element that is transverse to the sheet transport direction has inclined support surface for side edges of the printing material sheets, and which means an adjustment device is adjustably mounted, according to the preamble of claim 1.
  • Such sheet guiding devices on which the sheets are not with their surfaces but with in their side edges and thus along a contact line are for lubrication-free Guide of rigid arches advantageous.
  • the guiding elements of such sheet guiding devices can be with the arches transporting cylinders to be attached to these rotating, as in the DE-PS 725 705 and DE 41 11 262 C2 described sheet guide devices the case is, or be arranged adjacent to the cylinders, as in DE 258 400 A1 and the sheet guide devices described in DE 44 43 493 A1.
  • DE 42 09 006 A1 is also a genus not mentioned at the outset corresponding sheet guiding device described, the guiding elements of a motor adjustable and as elements contacting the arch surface, e.g. Suction rings, are trained.
  • the invention has for its object a sheet guide device for To create printing material processing machines, on the one hand Lubrication-free sheet guidance and, on the other hand, short changeover times are guaranteed.
  • the task is performed by a sheet guide with the features of Claim 1 solved.
  • the sheet guide device according to the invention is characterized in that the Adjusting device comprises a motor understanding the guide element.
  • Such a sheet guiding device is automated the format changeover of the machine is advantageous.
  • the format can be changed at the push of a button by the operator or another Operating command on a control-technically linked with the remotely controllable motor electronic control device by a corresponding control of the Guide element for the displacement of the drive-connected motor by the Control device take place automatically without further action by the operator.
  • the motor adjusts several guiding elements at the same time, with which the motor is connected via a gearbox. It can also be it should be provided that several, each with a drive element connected to the drive Motors are linked to the control device for control purposes. After this The command can be used to control these synchronized motors in parallel e.g. B. in a central control panel of the machine integrated control device, so that the guide elements simultaneously in their for the sheet format width to be set required positions are adjusted.
  • FIGS Subclaims Advantageous embodiments of the sheet guiding device according to the invention are shown in FIGS Subclaims called.
  • the support surface is convex and / or in its direction of inclination concave.
  • this consists of several side-by-side supports that together determine the support surface, which in places between the supports is interrupted.
  • a bilateral support of the arch by motor adjustable guide elements advantageous further embodiment includes the Sheet guiding device in addition to the guiding element as the first guiding element, a second Guide element, whose support surface is opposite to that of the first guide element arranged and inclined mirror-symmetrically to the support surface of the first guide element.
  • first and second Guide element assigned a third guide element that the printing material sheet in the area is arranged between its side edges.
  • third guide element e.g. B. in the form of a guide bracket, attached to the cylinder and turn with this.
  • a compressed air generator for. B. a Blower, be arranged in the cylinder or arranged outside the cylinder and via a Rotary inlet must be connected to the blowing device.
  • the third guide element can be acted upon with compressed air and with the Provide arc-directed air nozzles. It can also be provided that the third A blowing device different from the third guide element is also on the sheet is directed blow nozzles.
  • the first Guide element on the cylinder transferring the sheet, for. B. a transfer drum or a so-called transfer drum, attached and rotates with it.
  • the first guide element is separate from the Sheet transport device arranged immediately adjacent to this and prevents centrifugal force causes the trailing edge of the trailing edge to lift too far sheet held on the sheet transport device by the sheet transport device.
  • two side edges of the sheet on its format width advantageous other Embodiment is one and the first guide element and the second guide element assigned the same motor for driving the guide elements or the first guide element a first motor and a second motor are assigned to the second guide element.
  • the Assignment of one motor for each of the two guiding elements can be asymmetrical Relative position of the substrate sheet in relation to the machine center across The sheet transport direction can be set particularly easily.
  • the printing material sheet processing machine which comprises the sheet guiding device, is preferably a sheet-fed rotary printing press and can also be a die Printing material sheets after their printing machine.
  • a sheet-fed rotary printing press is processing as printing material sheets
  • Machine 1 is shown schematically and in detail.
  • the machine 1 comprises several sheet-guiding cylinders 2 to 4 and several ink-guiding cylinders 5 to 8.
  • Die Cylinders 2 to 4 are multi-sized cylinders, i.e. the circumferential length of each of the Cylinder 2 to 4 corresponds to a multiple of the format length of cylinder 2 to 4 transported bow. More specifically, the cylinders are 2 to 4 double-sized cylinders, each with two diametrically opposite rows with grippers is equipped for clamping two sheets on its front edge.
  • Cylinders 2 and 4 are impression cylinders on which the sheets rest, while cylinders 6 and 8 are the Apply color to the sheets.
  • the cylinders 5 and 7 are printing form cylinders, of which cylinders 6 and 8 transfer the ink to the sheets as blanket cylinders.
  • the Cylinders 2, 5 and 6 are part of a printing unit 9 and cylinders 4, 7 and 8 one other printing unit 10 of the machine 1.
  • the cylinder 3 is a the sheets from the cylinder 2nd accepting and transferring to the cylinder 4 sheet transport cylinder, the Part of one of the printing units 9 and 10 for transporting the sheets from Printing unit 9 to the printing unit 10 interposed sheet transport device 11.
  • the circumferential length of each of the cylinders 2 and 4 and a flight circle 12 of the grippers of the Cylinders 3 each correspond approximately to twice the circumferential length of each of the Cylinder 5 to 8.
  • the sheet guiding device 13 extends in a circular arc, above the Cylinder 2, spaced concentrically to it, in the region of its second Quadrants, or in other words, on the sheet exit side shortly after one of the Cylinders 2 and 6 formed pressure gap starting shortly before a common one tangential arc transfer point of cylinders 2 and 3.
  • the arc guide 14 extends in a circular arc, below the cylinder 3, spaced apart from it concentric, in the area of its third and fourth quadrants over one on the Rotation axis of the cylinder 3 related angle of approximately 180 °, or in other words, shortly after the arc transfer point of cylinders 2 and 3, beginning until shortly before one common tangential arc transfer point of cylinders 3 and 4.
  • Die Arc guide device 15 extends in a circular arc shape, above cylinder 4 spaced concentrically, in the area of its first quadrant, or otherwise said, shortly after the arc transfer point of cylinders 3 and 4 starting until sheet inlet side shortly before a pressure gap formed by the cylinders 4 and 8.
  • Fig. 2 is a sheet-fed rotary printing press as a printing material sheet processing
  • further machine 16 is shown schematically and in detail.
  • the Cylinders 2, 4 to 8 and the printing units 9 and 10 of the machine 16 correspond functionally and structurally the parts of machine 1 and therefore do not need to be described again below.
  • the machine 16 is used optionally as a perfector printing machine and differs in its im Contrary to the sheet transport device 11 designed as a turning device Sheet transport device 17 from the machine 1.
  • One below cylinders 2 and 4 on the frame of Machine 16 attached sheet guide device 19 extends in the transport direction the arches are concavely curved - and more precisely adapted to the cylinder 18, support surface in the area of the third quadrant of the Cylinder 18, spaced concentrically to this, until shortly before a common tangential arc transfer point of cylinders 4 and 17.
  • the sheet guide device 19 extends further parallel to a tangent connecting cylinders 2 and 18 rectilinear support surface, in the area of the third quadrant of the cylinder 2 and of the fourth quadrant of cylinder 17. Closes in the direction of transport of the arches the rectilinear section of the support surface adjoins its curved section.
  • the Sheet guiding device 19 enables both a sheet transport path 20 without turning the sheet in straight printing mode as well as a sheet transport path 21 with a turn of the Sheet in the perfecting mode.
  • FIG. 3 is a sheet-fed rotary printing press as a printing material sheet processing further machine 22 is shown schematically and in detail.
  • the Cylinders 5 to 8 of the machine 22 correspond functionally and structurally to the same ones Parts of the machine 1 provided with reference numerals and therefore do not need to be used in the following be described again.
  • the printing units 23 and 24 of the machine 22 differentiate differ from the printing units 9 and 10 of the machine 1 only by their one each single row of grippers equipped as counter pressure cylinders Cylinders 25 and 26, the diameter of which corresponds to that of cylinders 5 to 8.
  • a den Printing units 23 and 24 for transporting the sheets from the printing unit 23 to the printing unit 24 intermediate sheet transport device 27 consists of one with a single Gripper row equipped single-sized cylinder 28, the arc from the cylinder 25th takes over, one with two diametrically arranged rows of grippers equipped double-sized cylinder 29 for taking over from the cylinder 28 and Sheet transfer to a single-sized machine equipped with a single row of grippers Cylinder 30, which transfers the sheet to cylinder 26.
  • cylinders 28 to 30 are on the frame of the machine 22 along the sheet transport path Sheet guide devices 31 to 35 attached, the cylinders 25, 26, 28 to 30 facing and equidistant support surfaces in the transport direction of the arches are concavely curved.
  • the sheet guiding device 31 extends in the shape of a circular arc, above the cylinder 25, spaced concentrically from it, in the region thereof second quadrant, or in other words, just after one of cylinders 6 and 25 formed pressure gap starting shortly before a common tangential Sheet transfer point of the cylinders 25 and 28.
  • the sheet guide device 32 extends arcuate, below the cylinder 28, concentrically spaced from this, in Area of the third and fourth quadrants, or in other words, on the arc exit side shortly after the pressure gap of cylinders 6 and 25 beginning until shortly before one common tangential arc transfer point of cylinders 28 and 29.
  • Die Arc guide device 33 extends in a circular arc, above cylinder 29 spaced concentrically, in the area of its first and second quadrants, in other words, starting shortly after the arc transfer point of cylinders 28 and 29 until just before a common tangential arc transfer point of cylinders 29 and 30.
  • the sheet guiding device 34 extends in a circular arc, below the cylinder 30, spaced concentrically from it, in the region of its third and fourth Quadrants, or in other words, shortly after the arc transfer point of the Cylinder 29 and 30 beginning until shortly before a common tangential Sheet transfer point of the cylinders 26 and 30.
  • the sheet guiding device 35 extends arcuate, above the cylinder 26, concentrically spaced from this, in Range of its first quadrant, or in other words, shortly after the Sheet transfer point of cylinders 26 and 30 starting shortly before to sheet inlet side a pressure gap formed by the cylinders 8 and 26.
  • the sheet guide device 38 is inside the cylinder, between two side plates closing the cylinder 38 on the end face, in parallel slidably arranged to the axis of rotation of the cylinder 38.
  • Fig. 4 a section of the machine 22 is shown again, which optionally in Fine print mode, the sheet being in both the printing unit 23 and the printing unit 24 is printed on its front, or in perfecting mode, the Sheet in the printing unit 23 on its front side and in the printing unit 24 on its back side is printed, is operable.
  • straight printing mode - cf. Fig. 3- is the Sheet guiding device 34 and in the perfecting mode - cf. Fig. 4- instead of Sheet guiding device 34 uses a sheet guiding device 36.
  • the Sheet guiding devices 34 and 36 can be used alternately for alternate use Cylinder 30 there and be moved away from this.
  • the cylinder 30 detects with its Grabs the sheet transported by cylinder 29 in straight printing in the area its leading edge and in the perfecting mode in the area of its Trailing edge of sheet to pull the sheet from cylinder 29.
  • the below the Cylinders 29 and 30 sheet guiding device 36 attached to the frame of machine 22 extends with a concavely curved - and exactly in the direction of transport said the cylinder 29 adapted circular arc-shaped support surface section in Region of the third and fourth quadrants of the cylinder 29, spaced from this concentric.
  • the curved section adjoins the curved direction in the transport direction a rectilinear section of the support surface, which in the region of the third quadrant of the cylinder 29 and in the region of the third and fourth quadrants of the cylinder 30 runs parallel to a tangent connecting the cylinders 29 and 30.
  • the machine 22 is one with respect to that in FIGS. 3 and 4 modified training shown.
  • the sheet guiding device 37 has one to the cylinder 30 equidistant, facing this and in the area of its third quadrant extending support surface with a convexly curved section, on which in Transport direction of the sheets a concavely curved and adapted to the cylinder 30 Section connects, which is concentrically spaced from the cylinder 30 until just before common tangential arc transfer point of the cylinders 26 and 30 runs.
  • the support surface of the sheet guiding device 37 is slightly curved in an S-shape, the end facing away from the arc transfer point of cylinders 26 and 30 Support surface in the asymptotic course through the center of the cylinder 30 vertical line approximates.
  • the sheet guiding devices 13 to 15, 19, 31 to 37 differ with regard to each other their course geometry in the transport direction of the sheets and in their assignment to the different cylinders 2 to 4, 18, 25, 26, 28 to 30 from each other, however identical in terms of their other constructive training. That is why this other constructive design of all sheet guiding devices 13 to 15, 19, 31 to 37 below using the example of the side view in FIG. in Sheet transport device seen described sheet guide 32 described, wherein the described features apply to the other sheet guiding devices 13 to 15, 19, 31, 33 to 35, as indicated by their parentheses Reference number is indicated.
  • the sheet guide device 32 consists of two guide elements 39 and 40, the Side edges 41 and 42 transported in grippers 43 of the cylinder 28 Printing material sheet 44 supporting support surfaces 45 and 46 in the direction of the ends of the Cylinder 28 inclined towards this and transversely to the transport direction of the sheet 41 run.
  • the geometric course of each support surface 45 and 46 in the transport direction of the Sheet 44 has already been explained with reference to FIGS. 1 to 5 and thereby as the course of the referred to the respective sheet guide.
  • the guide elements 39 and 40 are opposite one another and are centered on one the ideal and vertical mirror axis between them are symmetrical to each other educated.
  • An adjusting device 48 attached to the machine frame 47 serves the purpose of to the cylinder 28 axially parallel and mutually opposite displacement of the in Adjustment device 48 mounted guide elements 39 and 40.
  • To the adjustment device 48 belongs to a bearing block 49, in which two threaded spindles 50 and 51 with their ends are rotatably mounted.
  • Each of the threaded spindles 50 and 51 is with the bracket 48th opposite end coaxial and rotatably with a motor shaft of an electrical and connected to the machine frame 47 attached motor 52 and 53, the respective Screws 50 and 51 drives rotationally, which means that this Threaded spindle 50 and 51 driven guide element 39 and 40 in one of the format width of the sheet 44 transported past the guide element 39 and 40 corresponding position Contact to the respective side edge 41 and 42 of the sheet 44 is shifted.
  • the Fig. 6 is the collapsed position of the guide elements 39 and 40 at a minimum Format width with broken line and the spread position at maximum format width with full line. Between these two End positions are infinitely all intermediate positions for medium formats by one corresponding displacement of the guide elements 39 and 40 towards and from each other adjustable way.
  • Each of the threaded spindles 50 and 51 arranged coaxially with one another forms together with the respective screwed onto it and with one Internally threaded guide element 39 and 40 a motorized Screw gear 54 and 55.
  • Each of the guide elements 39 and 40 is by the Positive locking with a parallel to the adjustment path of the guide element 39 and 40th extending linear guide 56 against rotation relative to the machine frame 47 secured in both directions of rotation of the respective threaded spindle 50 and 51.
  • the Thread pitches of the threads of the threaded spindle 50 and 51 and Guide elements 39 and 40 are comparatively small, so that on the one hand a very sensitive one Setting the correct positions of the guide elements 39 and 40 possible and on the other hand the screw gears 54 and 55 are self-locking. So is one unintentional rotation of the threaded spindles 50 and 51 and a displacement of the Guide elements 39 and 40 through on them in their direction of adjustment, e.g. when cleaning the Guide elements 39 and 40 from paper dust, forces exerted not possible.
  • One is central to the synchronization of the two motors 52 and 53 to one another Control panel integrated electronic control device 57 is provided, which the Motors 52 and 53 controlled so that the threaded spindles 51 and 52 one of the dependent format width and lateral position of the sheet in the machine Rotate number of revolutions.
  • Sheet guiding device 32 can the two threaded spindles 50 and 51 on their in Bearing bracket 49 ends connected to one another in a rotationally fixed manner, so that they form a single one Form a threaded spindle which, when the motor 53 ceases to exist, only from the motor 52 is driven.
  • By placing the guide element 39 on a left-handed thread Section of this single threaded spindle and the guide element 40 on one with a Right-hand threaded section of the same threaded spindle is screwed on an opposite movement of the guide elements 39 and 40 towards or from each other depending on the direction of rotation of the threaded spindle and the motor 52.
  • the position of the sheet relative to the center of the machine can be shifted the threaded spindle together with the guide plates perpendicular to the sheet transport direction can be set, for which the threaded spindle to move a drive and a Gear can be assigned.
  • FIG. 7 A further modification of the sheet guiding device 32 shown in FIG. 6 is shown in FIG. Fig. 7 shown.
  • the motor 52 drives the screw gear 54 via a traction mechanism gear 58, the self-contained traction mechanism 59 by one with the Threaded spindle 50 coaxially and non-rotatably connected wheel 60, one with the motor shaft of the Motor 51 coaxially and non-rotatably connected wheel 61 and one with a Threaded spindle 50 axially parallel threaded spindle 62 coaxially and non-rotatably connected Wheel 63 rotates and meshes with the wheels 60, 61 and 63 in positive engagement.
  • the wheels 60, 61 and 63 are toothed belt pulleys when the traction means 59 is a toothed belt and sprockets if the traction means 59 is an articulated chain.
  • the Wheels 60 and 63 are in terms of their number of teeth and their pitch circle diameter identical to each other.
  • the threaded spindle 62 is offset from the threaded spindle 50 in the Guide element 39 screwed in and both threaded spindles 50 and 62 are each with one Provide thread, these two threads have the same pitch and either both right hand threads or both left hand threads. So both Threaded spindles 50 and 62 synchronized by the traction mechanism 58 from the motor 52 driven in the same direction of rotation, whereby they the guide element 39 in parallel Postpone attack.
  • the sheet guide device 38 differs essentially from that Sheet guiding device 32 on the one hand in that sheet guiding device 38 is not on Frame, but is attached to the cylinder 28, and that the guide elements 39 and 40 in Opposite guide elements 64 and 65 with in the transport direction Arc 44 are convexly curved support surfaces 66 and 67 are formed.
  • the Guide elements 64 and 65 rotate due to their attachment to the cylinder 38 With.
  • the support surfaces of the sheet guiding device 38 are outer cones or - cones and no inner cones or cones, such as those of the sheet guide 32.
  • Die Guide elements 64 and 65 are ring-shaped or ring segment-shaped and coaxial to Cylinder 28 along a shaft of cylinder 28 serving as a linear guide 68 slidably arranged.
  • An adjusting device 69 for axially displacing the Guide elements 64 and 65 consist of motors 70 and 71 driven Screw gears 72 and 73 with threaded spindles 74 and 75 and a bearing block 76. Since parts 69 to 76 correspond functionally and constructively to parts 48 to 56, it is not necessary to go into parts 68 to 76 again at this point.
  • cylinder 3 - see. Fig. 1 - and the cylinder 18 - cf. Fig. 2 - equipped with the sheet guide 38 can be, the parts 64 to 80 are integrated in the cylinder 3 or 18.
  • FIG. 6 there is each in the description of the invention previously mentioned grid-like guide element of a plurality of supports 77 and 78, each with a space 79 between two supports 77 and 78 held together by a support 80 and in the form of a Beams are arranged to diverge.
  • the supports 77 and 78 can be used as rib-shaped webs or as a tensioned wire.
  • the supports 77 and 78 can also be designed as rollers, but a rotationally fixed arrangement is the Supports 77 and 78, with the omission of pivot bearings, are particularly economical in terms of production Cheap. Due to the motorized adjustment of the carrier 80 of the respective guide element all of its supports 77 and 78 are moved at the same time.
  • each of the guide elements mentioned above can instead of a multitude of supports with a single continuous one Provide support surface and z. B. be designed as a baffle. Such a full area The baffle can be cut particularly easily in the form of a sheet metal Cone shell segments are produced.
  • FIG. 9 to 13 show the example of the guide element 64, which is from one of FIG. 6 seen in the corresponding viewing direction, but enlarged and shown in section, different geometric variants of the course of the support surface 67 transverse to Sheet transport direction, whereby these variants refer to all the others without further ado Have guiding elements transferred.
  • the support surface 67 runs exclusively according to FIG. 9 linear, only concavely curved according to FIG. 10 and according to FIG. 11 exclusively convex curved.
  • Fig. 12 a variant is shown in which the Support surface 67 a linear section and a concave adjacent to this has curved portion.
  • the Support surface 67 a concave portion and a convex portion, which in ignore each other.
  • the average inclination of the support surface 67 across The sheet transport direction is approximately 45 ° in all variants.
  • the sheet guiding device 32 is representative of the example Sheet guide devices 13 to 15, 19, 31 to 35 shown that in the area of Format width center of the sheet 44 on the cylinder 28 -comp.
  • Fig. 6-opposite Side of the arch in addition to the guide elements 39 and 40 Another guide element 81 is assigned, which is particularly transverse to Sheet transport direction because of its weight, the sheets bend strongly 44 is advantageous. That as a rod-shaped hollow profile, e.g. B. trained as a tube Guide element 81 has a longitudinal extent in the direction of the transport path of the sheet 44. The guide element 81 extends over most of its length at a distance from Cylinder 28, concentric with its outer circumference, as can be seen in FIG. 15.
  • the Ends of the guide element 81 deviate from its concentric profile and are curved away from the cylinder 28. Heavy and rigid arches 44 support each other during their transport on the guide element 81.
  • the round profiled guide element 81 is of this type arranged that the rigid arch 44 not at all with its surface, but only with its rear edge, i.e. practically with point contact, glides on the guide element 81. In In some cases it may be necessary to use several, instead of a single guide element 81 e.g. B. three, with the guide element 81 formed comparable guide elements between the Guide elements 39 and 40 to be arranged.
  • the guide element 81 is provided with blown air openings 82 and to one providing the blowing air flowing out of the nozzles 82
  • Overpressure generator 83 e.g. B. a blower or a compressor is connected. If instead of the sheets made of cardboard, 44 sheets of paper with reduced Bending stiffness to be processed in the machine is the contactless one pneumatic support of these sheets of paper by the compressed air Guide element 81 is particularly advantageous. The machine containing the guide member 81 is therefore ideal for the optional processing of cardboard sheets or paper sheets equipped.
  • the guide element 81 shown in FIG. 17 this is not as one thin blowpipe, but as a substantially the entire width of the format Arc 44 reaching blowing box, the plate provided with nozzles 82 in Sheet transport direction as well as the blowpipe - cf. 15- can be curved.
  • an actuator 84 for. B. a pressurized fluid Reciprocating cylinder, the guide element 81 is in the direction of the sheet transport device, d. H. of the cylinder 28 to and from this adjustable.
  • the guide element 81 can thus be withdrawn from the cylinder 28 are and can guide the flexurally rigid bends 39 and 40 in one the format width of the sheet corresponding position in the space between the Cylinder 28 and the guide element 81 are engaged, as shown in FIG. 17.
  • the guide elements 39 and 40 can be used to process light and unstable arches 44 by means of the adjustment device 48 over the maximum processable format width corresponding positions moved apart by means of the adjusting device 48 be so that the guide element 81 between the guide elements 39 and 40 through closer can be brought up to the cylinder 28, as shown in FIG. 18.
  • the perpendicular to the direction of displacement of the guide elements 39 and 40 Guide element 81 is in its position closer to the cylinder 28 with overpressure acted upon, so that the blowing air flowing out of the nozzles 82 is an air cushion forms between the sheet 44 and the sheet guiding element 81, the sheet 44 falsifies slides without contact to the sheet guide element 81 during its transport.
  • 1 and 3 are each only two printing units and one of these Intermediate sheet transport device of the respective printing machine is shown, but this includes a variety of other such printing units and Sheet transport devices, all with the sheet guide devices described are equipped, which are simultaneously adjustable by motor, so that the changeover time Printing press is very low.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Registering Or Overturning Sheets (AREA)
EP00105378A 1999-10-20 2000-03-20 Dispositif de guidage de feuilles pour machines à travailler des feuilles imprimées Withdrawn EP1094023A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19950408A DE19950408A1 (de) 1999-10-20 1999-10-20 Bogenleiteinrichtung für Bedruckstoffbögen verarbeitende Maschinen
DE19950408 1999-10-22

Publications (2)

Publication Number Publication Date
EP1094023A2 true EP1094023A2 (fr) 2001-04-25
EP1094023A3 EP1094023A3 (fr) 2002-11-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105378A Withdrawn EP1094023A3 (fr) 1999-10-20 2000-03-20 Dispositif de guidage de feuilles pour machines à travailler des feuilles imprimées

Country Status (3)

Country Link
EP (1) EP1094023A3 (fr)
JP (1) JP2001158079A (fr)
DE (1) DE19950408A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777184A1 (fr) * 2005-10-18 2007-04-25 Kba-Giori S.A. Système de transport de feuilles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222060B4 (de) * 2002-05-17 2006-06-29 Koenig & Bauer Ag Bogenführungstrommel in einer Druckmaschine und Bogendruckmaschine
JP4928871B2 (ja) * 2006-08-22 2012-05-09 リョービ株式会社 枚葉印刷機の渡し胴
WO2020101655A1 (fr) 2018-11-13 2020-05-22 Hewlett-Packard Development Company, L.P. Barres de convection de gaz

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US3934872A (en) * 1973-10-03 1976-01-27 Ryobi, Ltd. Printed sheet guide mechanism in offset printing press
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JP2001158079A (ja) 2001-06-12
DE19950408A1 (de) 2001-05-03

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