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
  • B65H45/00—Folding thin material
  • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
  • B65H45/28—Folding in combination with cutting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/02—Conveying or guiding webs through presses or machines
  • B41F13/03—Threading webs into printing machines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
  • B41F13/56—Folding or cutting
• • 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
  • B65H2301/50—Auxiliary process performed during handling process
  • B65H2301/52—Auxiliary process performed during handling process for starting
  • B65H2301/522—Threading web into machine
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2801/00—Application field
  • B65H2801/03—Image reproduction devices
  • B65H2801/21—Industrial-size printers, e.g. rotary printing press
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T83/00—Cutting
  • Y10T83/081—With randomly actuated stopping means
  • Y10T83/084—With stop-signal-responsive means to actuate auxiliary cutter
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T83/00—Cutting
  • Y10T83/202—With product handling means

Definitions

• the invention relates to devices and a method for drawing at least one material web or at least one web strand into a folding apparatus according to the preamble of claim 1, 30, 38 or 60.
• a folder such.
• WO 00/56652 A1 comprises a superstructure, in which merged by one or more printing units paper webs combined, possibly longitudinally cut and placed over each other, at least one former, on each one in the superstructure of one or more paper webs folded web strand is longitudinally folded, and a transverse cutting device in which the leksgefalzte web strand is broken down into individual products.
• the cross-cutting device is realized by a rotating knife cylinder, the blades cooperate for cutting the web track with an abutment on a gripper or folding blade.
• the grippers of this cylinder hold the products separated by the cross cutter on the surface of the cylinder and convey them to a transfer nip between the folding blade cylinder and a jaw cylinder where a folding blade extends out of the folding blade cylinder to move the product held along a transverse center line to introduce a jaw of the jaw cylinder and so fold across.
• DE 42 10 190 A1 discloses a cutting device with integrated switch, which is arranged between draw rollers and folding cylinders.
• DE 101 28 821 A1 shows a device for merging paper webs during drawing.
• US 31 25 335 A discloses a device for drawing webs of material by means of bands.
• EP 06 73 764 A1 discloses a device for drawing of printing material webs over turning bars, wherein partial printing material webs are drawn by Einziehspitzen, which are attached to chains running in guide rails side arc.
• a former arrangement is known in which the or the former is or are transverse to the direction of the web by at least one actuator for adaptation to different web widths.
• a length-variable guide rail piece is known for a roll chain which can be used as a drawing device for a paper web.
• the invention has for its object to provide devices and a method for drawing at least one web or at least one web strand in a folder.
• the achievable with the present invention consist in particular that now even when using different widths of the web, in which the position of the former must be adjusted to ensure proper operation of the folder, the subsequent to the former terminus of the guide rail due to the formvariable guide rail section, which is variable in length and bendable, in particular, does not have to be adjusted by hand to the changed position at every change in position of the former by the operating personnel.
• the guide rail course adapts automatically on account of the shape-variable guide rail section.
• the Einziehvorgang a material web is thus possible in any funnel position.
• the shape variable guide rail section compensates for both an angular offset of the guide rail in the direction of the machine center and a longitudinal displacement of the guide rail in the running direction of the material web, so that can be retracted in any position.
• variable-shape guide rail section in a preferred embodiment of the invention on the one hand from a variable-shape carrier strand and on the other hand composed of a carrier strand held guide elements, it is on the one hand possible to obtain the shape variability of the guide rail portion exclusively on the basis of the carrier strand and the guide elements other material, in particular to produce a relatively stiff material such as metal.
• the shape-variable carrier strand can be, for example, a homogeneous strand of suitable, to some extent elastically deformable plastic or of a rubber material, whereby in particular the curving of the guide means can be achieved, to a certain extent also a length variability.
• the guide strand comprises a plurality of seen in the longitudinal direction of the support strand substantially successively arranged support elements, adjacent support elements are coupled to each other in particular distance variable, which can advantageously be realized by adjacent support elements engage with play with each other ,
• Such a design of the invention allows a particularly high dimensional variability of the carrier strand and thus of the variable-shape guide rail portion and in particular a high length variability, which is determined primarily by the sum of the game between the adjacent support elements.
• connection between the adjacent carrier elements results when the carrier elements engage with corresponding play in openings of the respective adjacent carrier element with play or, in an alternative embodiment, coupled with each other via oppositely directed, in particular hook-shaped coupling approaches are.
• the assembly of the carrier strand from the individual carrier elements becomes particularly simple if the carrier elements formed, for example, as described above, can be brought into engagement with each other substantially perpendicularly to the longitudinal direction of the guide rail section.
• the guide elements are preferably designed pushed onto the support strand or the support elements and in a preferred embodiment of the invention it is provided that the guide elements surround the support elements at least in the region of their coupling, so that on this Way the coupling or connection between two adjacent support members is secured by the associated guide element.
• the former is preferably displaceable parallel to the longitudinal axis of the cross cutting device. So that the guide rail to an adjustment of the former can follow, a lying in the direction of the web strand in front of the former hopper section of the guide rail should be stretchable.
• the guide rail has a formvariable guide rail section, in particular a variable length guide rail section.
• the guide rail is preferably twisted at the level of the former, preferably by about 90 °.
• the guide rail may extend to a position located on the web of material between first and second trimming devices, wherein the first trimming device may be phase-correlated and the second trimming device may be emergency-operated; beyond this position, such tools for automatic retraction of the strand are no longer required after z.
• the white waste by means of the phase-correlated Kappvorraum the useful part of the web strand in the arranged below the phase-correlated Kappvorraum emergency stop operated cutting device or arranged below the cross cutting device without requiring a guide through the guide rail.
• the memory may in particular be formed by a further guide rail section which extends, over a curved section, away from the material web in the lateral direction and is capable of accommodating a plurality, preferably a plurality of holding parts next to one another.
• the storage device may be preceded by a separating device for separating the holding parts from their respective material webs, so that the leading sections of the material webs entrained by the holding parts do not have to be accommodated in the store if there is insufficient space for this purpose.
• the guide rail may preferably extend continuously from a reel changer of a printing unit upstream of the folder into the folding apparatus or up to the emergency stop-operated trimming device.
• At least one return-guiding rail which is different from the at least one guide rail, can be provided for returning retaining parts to the starting position.
• FIG. 1 is a partial schematic side view of a portion of a printing machine with a device comprising a guide rail for retraction;
• FIG. 2 is a partial schematic front view of the printing press according to FIG. 1;
• FIG. 2 is a partial schematic front view of the printing press according to FIG. 1;
• Fig. 3 is a schematic partial view of Figure 2, but wherein the guide rail is not shown.
• FIG. 4 shows a detailed view of a guide rail and a holding part guided in the guide rail for a material web to be fed in;
• FIG. 5 shows a perspective view of a short section of a first exemplary embodiment of a shape-variable guide rail section
• FIG. 6 is a top view of the portion of FIG. 5; FIG.
• FIG. 7 is a side view of the portion of FIG. 5; FIG.
• FIG. 8 is a side view of the portion of FIG. 7;
• FIG. 9 is a perspective view of a short portion of a second embodiment of a variable-shape guide rail portion;
• FIG. 10 is a perspective view of a support member and a
• FIG. 11 is a top view of the portion of FIG. 9; FIG.
• FIG. 12 is a side view of the portion of FIG. 9; FIG.
• FIG. 13 is a side view of the portion of FIG. 12; FIG.
• FIG. 14 shows a further embodiment of the second exemplary embodiment in a view from above;
• FIG. 15 shows the further embodiment according to FIG. 14 in side view
• FIG. 16 shows a view of a further embodiment of a shape-variable guide rail section
• Fig. 17 shows an advantageous embodiment of a chain.
• FIGS. 1 and 2 Coming from a printing unit, not shown, in the illustration of Fig. 1 from the bottom right coming web 01, z. B. Paper web 01 reaches a superstructure 03 of a folder.
• the superstructure 03 comprises a longitudinal cutter 04 for breaking up the incoming paper web 01 into a plurality of juxtaposed partial webs, a turning table 06 in which the partial webs of the paper web 01 and possibly further paper webs, not shown, are rearranged transversely to the running direction (from the right to on the left in FIG. 1) and / or turned over and then placed one above the other. From the turning table 06, the path of the paper web 01 extends over an arrangement of compensating rollers 07 for web length compensation and traction control to a former 08.
• Forming roller 08 and compensating rollers 07 are movable in a common frame 02 in the lateral direction of FIG. 1, as indicated in Fig. 1 by the double arrow A, and further, the former 08 on the frame 02 transverse to the longitudinal direction of the incoming paper web 01st be adjustable, as indicated in Figure 2 by the double arrow B.
• the web of paper 01 travels downwardly substantially vertically downwards through a first cross-cutting device 11 and a second cross-cutting device 12 and then through a cross-cutting device 24 and a cross-folding device of per se known construction, not to be explained more precisely here ,
• train groups 26; 27; 28 provided to guide the paper web 01 between the former 08 and cross-cutting device 24.
• a guide rail 09 extends, which largely coincides in the illustration of FIG. 1 with the paper web 01, but in fact is arranged substantially next to the paper web 01 at a predetermined distance.
• the guide rail 09 is used in the manner described in more detail below for drawing a paper web 01 through the machine into the folder.
• the drawing-in process is preferably carried out by the printing units associated with the web path (not shown) while they are not printing.
• the guide rail 09 extends, as can be seen in particular from FIG. 2, along the former 08 and into the region between the first cutter 11 and the second cutter 12, from where they are curved Guide rail section 13 is led out laterally from the system to a crossbar 14 and there to form one or more loops a memory 16 for the below to be explained guided in the guide rail 09 holding parts defined at which the leading end of a paper web 01 during retraction becomes.
• the guide rail 09 preferably extends without interruption from a non-illustrated reel changer of a folder upstream of the folder, not shown in FIG. 1, to the above-described position.
• a separating device At the entrance of the memory 16 adjacent to the curved guide rail portion 13, a separating device, not shown, may be arranged, which releases the head portion of each passing paper web 01 of its holding part. The trackless track beyond the separator falls down freely next to the folder and is thus ejected.
• an additional return guide rail is provided, via which the holding parts are returned to their original position.
• the returning guide rail may, for example, connect to the end of the memory 16, so that the holding parts quasi are circulated. If such an additional, returning guide rail is provided, it would also be possible to dispense with a memory 16 after it allows retaining parts to be returned at any time irrespective of the respective operating state of the machine.
• the end of the guide rail 09 is, as already mentioned above, arranged between the first capping device 11, which may in particular be a phase-correlated capping device 11, and the second capping device 12, which may be an emergency stop-operated capping device 12, as hereinafter particularly with reference is explained in more detail on Fig. 3.
• the material web 01 in particular paper web 01, carries a recurring after a certain repetition length L B processing pattern, eg. B. a printed image.
• L B processing pattern eg. B. a printed image.
• the material webs 02 or a web 05 comprising the repetitive processing pattern are cut from one or more such material webs 02 into product sections 17.
• the folding apparatus F can, as shown, in particular a transport cylinder 38, for example, designed as a cylinder 28 gripper cylinder 38 with grippers 39 and knives 41 and a cooperating with this and a folding gap 42 defining jaw cylinder 43 include.
• the transport cylinder 38 acts with a cylinder 44, z. B. knife cylinder 44 together, the knife 45 carries, whereby the cross-cutting device 24 is formed.
• the strand 05 is cut into product sections 17 to match the recurring repeat length L 6 .
• suitable cut is the cross-cutting device 24 and a processing pattern applying, not shown aggregate, for. B. printing unit, synchronized in their work cycle and a distance of the web (s) from the unit to the section, if necessary, in addition by a longitudinal register means not shown on a integer multiple of the repeat length L 6 adjustable.
• the synchronization can be done electronically by a common drive motor motor via mechanical coupling or preferably mechanically mechanically independent of each other by drive motors driven unit and cross-cutting device 24 via a so-called. Virtual master axis when driving unit and cross cutting device 24.
• the virtual master axis is understood here as part of a machine controller 18, which is schematically illustrated in FIG. 3.
• a machine controller 18 On the basis of specifications relating to the production speed, it can generate angular setpoint values ⁇ purely synthetically and to all drives of assemblies to be synchronized and, for example, to a drive M driving the cross-cutting device.
• the angular position command values ⁇ of the leading axis and thus the other drives can be synchronized via the leading axis Position of the folder F and the cross cutter 24 follow.
• the capping device 12 for spontaneously capping the strand 05, for example due to an emergency stop, arranged.
• This capping device 12 is designed to penetrate the strand 05 with a short reaction time to a corresponding command and at the same timegol meeting in an advantageous development of the strand path to the folder F out.
• basically any capping device 12 can be provided, in which a knife 31 is movable into or out of the strand path in the strand path.
• the capping device 12 has a knife 31 which is pivotably mounted on an axle 36 and is movable by pivoting into the strand path or out of the strand path. A pivoting of the axis 36 and thus the blade 31 via an eccentric to the axis by a pressure medium operated adjusting means 32 hinged lever 37.
• the adjusting means 32 is in this case via a control device 35 and an actuator 35, for example as a valve for the Pressure medium applied carried out as a result of a signal N (for emergency stop).
• This signal N may come from the machine controller 18 or, for a short duration, directly from error detecting sensors.
• the Kappvortechnisch 12 a guide 33, z. B.
• the capping device 12 may have a bracket 34, which can be pivoted together with the blade 31, which supports the guiding of the strand beginning in the direction of the folding apparatus 12 when the blade 31 is deactivated.
• the capping device 11 which can be controlled in accordance with the register is arranged.
• register-compliant caps are to be understood as meaning a capping of the strand 05 (or of material webs 01) at an operational cutting line S provided for the cut between two consecutive repeat lengths L 6 .
• the Kappvoroplasty 1 1, a cap member 47 and knife 47, which extends perpendicular to the longitudinal extent of the strand 05 and parallel to the plane of the strand 05 and is guided perpendicular to the plane of the strand 05 on a linear travel movable ,
• a displacement of the cap member 47 and thus the knife 47 is z. B. via a pressure medium-operated adjusting means 48, z.
• a hydraulic or pneumatic cylinder 48 with piston and plunger whose movement via a motion transmission mechanism 49, which may be a pivot lever mechanism 49 in particular, in the linear movement of the cap member 47 can be transferred.
• the adjusting movement of the actuating means 48, d. H. of the piston or plunger perpendicular to the adjusting movement of the cap member 47, whereby the
• Motion transmission mechanism 49 or pivot lever mechanism 49 is required, on the other hand, however, a space-saving arrangement is created.
• the cap member 47 or knife 47 acts with this opposite another cap element 50 and an abutment 50, z. B. designed as a counter knife 50 or cutting bar 50, together, wherein the two cap elements 47; 50 form a cutting groove when interacting.
• This counterknife 50 is preferably stationary on the other side of the strand 05 arranged, but could also be movable, in particular linearly movable or else be movable instead of the first cap member 47 and 47 respectively.
• the operation of the Kappvoroplasty 1 1 is phase-correlated to the cross-cutting device 24.
• the register-based triggering of the Kappvoroplasty 11 for later operational cut, d. H. the triggering at the right moment to the advancing strand 05 is effected on the basis of a signal to a status information item I concerning the operative cross-cutting device 24 (eg of the folder F), in particular phase information I (in short: signal I).
• phase information I in short: signal I.
• this phase information I represents angular information I of the knife cylinder 44 driven synchronously with the strand 05.
• the phase information I can advantageously be obtained directly from the knife cylinder 44 by a corresponding detection system 40, e.g. , B.
• one with a knife with the cylinder 44 rotatably connected initiator cooperating sensor can be obtained.
• This initiator then stands, for example, in a fixed, precisely selected angular reference for register-compliant caps with the capping device 11, so that due to a pulse during the passage of the initiator on the sensor, the caps by the Kappvorraum 1 1.
• phase information I can also be derived from the leading axis of the machine control 18, since their phase position with the phase angle of the folder F, in particular the cross cutter 24, correlates in a defined manner.
• the signal of the phase information I is processed in a control device 56 and triggers the register-compliant caps by the Kappvorraum 1 1.
• the controller 56 can be a simple Actuator 56, for example, as a valve for the pressure medium to be executed. If the phase information I only represents information about instantaneous angular positions, then the control device 56 has means for determining (eg input means) a defined desired position and for evaluating the phase information I obtained in this regard.
• the guide rail 09 used essentially over the entire guide path has, as shown in FIG. 4, a total of a U-shaped or C-shaped cross section, in the groove 23, in particular longitudinal groove 23, a chain piece 51 is guided in each case.
• the chain piece 51 is constructed of alternating one- or two-segmented members 52; 53, of which at least one carries out of the groove 23 extending arm 19.
• two adjacent members 53 common carry an arm 19.
• Chain piece 51 and arm 19 are hereinafter also referred to as holding part 51, 19.
• a hook at the end of the arm 19 is provided to fasten, with the aid of a loop wrapped around it, the leading end 54 of a paper web 01 to be newly collected or a draw-in tip connected to the leading end 54.
• the single-segment members 52 are elastic in itself, z. Example, by being made in one piece of an elastic material, or by having a (not shown in FIG. 4) elastic center piece of spring steel or the like, and thus allow a twist of the chain piece 51 about an axis parallel to the longitudinal direction of the guide rail 09 and 09 axis a bend of the chain piece 51 about an axis perpendicular to the plane of the paper web 01 axis.
• the guide rail 09 described above is twisted in the region of the former 08.
• a funnel inlet roller 10 see Fig. 1
• the paper web 01 or the composite of several webs 01 strand 05 is deflected and reaches the sloping, downwardly tapered surface of the former 8 while the strand 05 on the side edges of the Folding funnel 08 is pulled, its orientation changes; from an orientation substantially perpendicular to the plane of FIG. 1 upstream of the hopper inlet roller 10 becomes an orientation substantially perpendicular to the plane of FIG. 2.
• the guide rail 09 can be seen to be twisted by 90 ° in a section following the funnel inlet roller 10 as shown in FIG.
• the groove 23 of the guide rail 09 After passing through the funnel inlet roller 10, the groove 23 of the guide rail 09 (see Fig. 4) initially faces the funnel inlet roller 10, and the arm 19 of a holding part 51, 19 protrudes from the groove 23 toward the funnel inlet roller 10.
• the orientation of the chain piece 51 is rotated by 90 °. The twisting ensures that the paper webs 01 are still guided exactly even after they have passed through the former.
• variable-shape guide rail section 58 comprises a plurality of guide elements 101, which are supported longitudinally one behind the other on a support strand 102, in particular fixed and together form a U-shaped or C-shaped rail for the collection device, not shown here, in particular roller chain.
• the guide elements 101 have a known cross-section, as is apparent in particular from FIG. 8 and, moreover, the cross-section of the guide rails 09 used in the machine, which are not dimensionally variable, fixed to the frame preferably corresponds.
• the guide elements 101 embodied as profiled strips 101 or profiled strip pieces 101 have a rectangular outer cross section and can be made of metal, in particular of aluminum, but also of a fiber-reinforced plastic or of a composite material.
• Each guide element 101 has a guide section 103 for guiding the retraction device, not shown, and a fastening section 104 for fastening the guide element 101 to the carrier strand 102.
• the attachment portion 104 is formed in the case of the embodiment of a hollow profile section 104.
• the inner cross section of the hollow profile section 104 is substantially rectangular. In the assembled functional state, the fastening section 104 or hollow profile section 104 surrounds the carrier strand 102 completely or the carrier strand 102 is guided or received in the hollow profile sections 104 of the carrier elements 101.
• the adjoining the attachment portion 104 guide portion 103 has a one-sided substantially open, U- or C-shaped cross-section.
• the opening of the guide section 103 extends in the direction away from the fastening section 104.
• the guide section 103 comprises two legs 106 which extend at right angles away from the hollow profile section 104, on the opposite inner side of which a respective groove 107 is formed, the opposing grooves 107 forming a raceway for define the roles of a roller chain.
• the carrier strand 102 is formed variable in shape, ie in particular variable in length and / or twistable and / or bendable. Suitable form variability may be imparted to the carrier strand 102, for example, by choice of a suitable material, in particular an elastically deformable material, primarily a suitable plastic material or rubber material. This makes it possible in particular to achieve sufficient twistability and bendability in practice.
• the carrier strand 102 is formed from a plurality or plurality of in the longitudinal direction L of the guide rail portion 58 successively arranged support members 108 which cooperate like a limb, wherein adjacent support members 108 are coupled to each other in the longitudinal direction L distance variable, in particular mesh with game. The individual carrier elements 108 can thus be pushed together or pulled apart relative to each other, so that in this way the length of the carrier strand 102 can be changed.
• Each carrier element 108 is associated with a guide element 101, d. H. in each case a guide element 101 is attached to a carrier element 108 in each case.
• the length of the guide elements 101 is preferably selected in dependence on the length of the support elements 108 so that the guide elements 101 lie against one another with their end faces taking advantage of the existing clearance when the support strand 102 is pushed completely together.
• the sum of the lengths of the guide elements 101 thus corresponds to the minimum length of the carrier strand 102 assigned to these guide elements 101, and the maximum length is obtained by adding the sum of the play of the associated carrier elements 108.
• the individual carrier elements 108 are approximately plate-shaped and basically have a cross section which corresponds to the inner cross section of the hollow profile sections 104 of the guide elements 101 such that a displacement of the carrier elements 108 within the hollow profile sections 104 is possible.
• the cross section of the carrier elements 108 in adaptation to the inner cross section of the hollow profile sections 104 is substantially rectangular.
• each plate-shaped support member 108 at its one end a centrally, ie symmetrically to the longitudinal direction L arranged C-shaped opening 109 with a rectangular inner cross-section and at its other end also a centered, ie arranged symmetrically to the longitudinal direction L T-shaped projection 11 1.
• the T-shaped projection 11 1 of each support member 108 engages with the C-shaped opening 109 of the respective adjacent support member 108 with play such that adjacent support members 108 in the longitudinal direction L relative to each other are displaceable.
• the width of the opening 109 measured transversely to the longitudinal direction L corresponds to the width of the transverse leg 112 of the T-shaped projection 11, the length of the opening 109 measured in the longitudinal direction L is greater than the thickness of the transverse leg 12, whereby said clearance between the carrier elements 108 is created.
• Each opening 109 is bounded by the end of the respective support member 108 through two facing legs 113, 114, between which the longitudinal leg 16 of the T-shaped projection 11 1 is guided and their mutual distance of the thickness of the longitudinal leg
• the carrier elements 108 can be joined together in a direction perpendicular to the plane of the drawing. Guiding elements 101 are then pushed over the hollow profile section 104 onto the assembled carrier elements 108 and fastened to a respective carrier element 108 in the manner described below.
• the guide elements 101 enclose the carrier elements 108 at least partially in the region of their coupling or connection, ie. H. in the region of the opening 109 and the transverse leg 112 of the projection 111, whereby this connection is secured against loosening.
• the bolt 117 as a bolt 1 17 and a bore 119 in the mounting portion 104 or a bore 118 in the support member 108 as a threaded bore 118; 119 be formed.
• the exemplary embodiment according to FIGS. 8 to 15 differs from the exemplary embodiment described above only by the different configuration or shaping of the connection between the carrier elements 108 described below. Incidentally, reference is made to the above description.
• the plate-like support members 108 at their ends on opposite sides of L-shaped or angular recesses 121; 122, which are formed so that at both ends of a support member 108 on respective opposite sides hook-shaped coupling lugs 123; 124 are formed, which are opposite or aligned with each other, wherein the coupling lug 123 of a support member 108 cooperates with the coupling lug 124 of the adjacent support member 108 with play.
• Said play between the carrier elements 108 is created by the fact that the thickness of the transverse to the longitudinal direction L, formed at the end of the respective coupling lug 123 or 124 hook portion 126 and 127 is less than the measured length L in the length of the respective hook portion 126; 127 cooperating leg 128; 129 of the recess 121 and 122, respectively.
• the hook-shaped coupling lugs 123; 124 formed so that the free ends of the hook portions 126; 127 on the respective longitudinal web 131; 132 of the respective coupling approach 123 and 124 support, which contributes to the stability of the carrier strand 102.
• the hook portion 127 and the associated leg 128 of the recess 121 is wider than the hook portion 126 and the associated leg 129 of the recess 122, which is achieved even in the case of maximum extension of the support strand 102, in which the individual guide elements 101 maximum are spaced and the gap between adjacent guide elements 101 thus reaches its maximum size, cf. z. B. Fig. 7, both cooperating coupling parts 123; 124 in both associated guide elements 101 and their hollow profile sections 104; 104 are guided, which also contributes to the stability of the carrier strand.
• the carrier strand 102 is connected at its two ends with a guide element 133 and 134, whose cross-section corresponds to that of the guide elements 101, which, however, is longer than the guide elements 101.
• the guide elements 133; 134 are connected to the guide rails 09.
• the length variability can be in the concrete case, for example, 3 mm per coupling, d. H. in the case of the example shown, a total of 15 mm.
• the further shape-variable guide rail section 57 is shown in more detail in FIG. 16.
• This guide rail portion 57 is formed variable in length or telescopically extendable and designed substantially as disclosed in the aforementioned WO 98/50234 A1; For details, therefore, reference is expressly made to this document.
• the guide rail section 57 also has a C-shaped or U-shaped inner cross section and comprises sections 61; 62, which engage relative to each other slidably into one another and always maintain a positive guidance of the roller chain.
• variable length Guide rail section 57 could also reach a shape-variable guide rail portion 58 is used. Also, if necessary form variable guide rail sections 57; 58 are also used elsewhere.
• FIG. 17 An advantageous embodiment of the in the guide rail 09 and the guide rail portions 57; 58 guided chain 51 is shown in Fig. 17.
• the chain 51 has respective rollers mounted on bolts 22, wherein the bolts 22 are connected by means of tabs.
• the chain 51 can not only perform a pivoting movement about the longitudinal axes of the bolt 22, z.
• the holes in the tabs slightly larger than the diameter of the pin 22, so that the chain 51 is transversely to the running direction or in the longitudinal axis direction of the bolt 22 curvable. In the curved state, this results in a maximum radius of curvature R51 of 1,000 mm or, preferably, less than 600 mm, particularly preferably less than 500 mm.
• the bolt 22 in its longitudinal direction with different diameters, in particular crowned execute.
• the superstructure of the folding apparatus preferably has a plurality of paths, on each of which at least one material web 01 through the superstructure 03 and the cross cutting device 24 is feasible, and then in not closer illustrated manner, several rail pieces that run along each of these paths, unite in front of the cross-cutting device 24 with the guide rail 09.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
• Treatment Of Fiber Materials (AREA)
• Preliminary Treatment Of Fibers (AREA)

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• 2005
  • 2005-09-21 DE DE102005045041A patent/DE102005045041B3/de not_active Expired - Fee Related
• 2006
  • 2006-07-27 ES ES08152822T patent/ES2325640T3/es active Active
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