WO1998047803A2 - Dispositif pour le pliage transversal de cahiers d'imprimerie - Google Patents

Dispositif pour le pliage transversal de cahiers d'imprimerie Download PDF

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Publication number
WO1998047803A2
WO1998047803A2 PCT/DE1998/001106 DE9801106W WO9847803A2 WO 1998047803 A2 WO1998047803 A2 WO 1998047803A2 DE 9801106 W DE9801106 W DE 9801106W WO 9847803 A2 WO9847803 A2 WO 9847803A2
Authority
WO
WIPO (PCT)
Prior art keywords
folding
fold
clamping elements
izzy
cylinder
Prior art date
Application number
PCT/DE1998/001106
Other languages
German (de)
English (en)
Other versions
WO1998047803B1 (fr
WO1998047803A3 (fr
Inventor
Horst Bernhard Michalik
Original Assignee
Koenig & Bauer Aktiengesellschaft
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 Koenig & Bauer Aktiengesellschaft filed Critical Koenig & Bauer Aktiengesellschaft
Publication of WO1998047803A2 publication Critical patent/WO1998047803A2/fr
Publication of WO1998047803A3 publication Critical patent/WO1998047803A3/fr
Publication of WO1998047803B1 publication Critical patent/WO1998047803B1/fr

Links

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
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/163—Details of folding jaws therefor
    • 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
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/166—Rotary folders with folding jaw cylinders having an adjustable circumference

Definitions

  • the invention relates to a device for cross-folding signatures according to the preamble of claim 1.
  • transverse fold products can only be produced up to 96 newspaper pages, since otherwise the inner and outer parts of the transverse fold product will be damaged.
  • DE-PS 174 019 and GB 350 949 describe folding jaws, the ends of which are rounded.
  • the invention has for its object to provide a device for producing a cross fold.
  • the advantages that can be achieved with the invention are, in particular, that thick folded products can be folded up to 192 pages with relatively little force. Because the center of the fold fold is precisely defined by the action of the pre-fold clamping elements, a precise transverse fold is generated, especially since both halves of the signatures are each drawn into the pre-fold clamping gap by an equal amount of the penetration depth of the folding knife. Since cross folding takes place in two stages, pre-folding and finishing folding, the forces required for each folding stage are reduced. Through the use of cylindrical pre-fold clamping elements of the jaw-like pre-fold clamping element system, the side surfaces of the pre-fold product associated with the pre-fold clamp are treated without damage. Likewise, the pre-folding of the prefabricated product is carried out up to 192 pages without damage due to the use of folding rollers.
  • Figure 1 is a cross section through a schematic representation of a folder. 2 shows a cross section through an enlarged schematic illustration of a pre-fold clamping element which has just received a cross-fold product;
  • Fig. 3 shows a longitudinal section III - III of FIG. 1, wherein only one end of a pre-Iz Iz is shown with a central control of the pre-Iz-Klem lement en systems.
  • side frames 1; 2 Between side frames 1; 2 are two longitudinal pockets 3; 4 arranged, which run on their Papi e rei n have a Trichterei nlauf 7 driven by means of motor 6. At their trich run out te are a pair between side frames 8; 9 located funnel folding rollers 11, each a drawing roller group 12 and transfer rollers 13, which one or more strands of paper 14; 16 via a main draw roller group 17, also between the side frames 8; 9 stored cross cutting and cross folding device 18 passes.
  • the cross-cutting and cross-folding device 18 has a known two-part, ie provided with two cutting knives 19 chord i dzy li nde r 21, which in turn against a known five-part folding knife, groove strip and puncture cylinder 22, or also transport and folding knife cylinder called change - works.
  • This cylinder 22 each has five folding knives and folding knife fittings 23 arranged on its circumference, Grooved strips 24 and 26 point system.
  • the cross cutting and cross folding device 18 also has a rotating body, for. B. a Vorf a Izzy li nder 27 with a number n, z. B. three, five or seven, but preferably five, evenly spaced on its circumference 42 pre-fold clamping element systems 28, each of which cooperate with the folder armatures 23 of the cylinder 22 (Fig. 1).
  • Each of the pre-fold clamping element systems 28 consists of a number m of two to ten in the axially parallel direction of the pre-fold cylinder 27 next to one another and at a distance a spaced apart a jaw-like working pairs 29 of fold-fold pre-fold clamp elements 31; 32.
  • the ends of the shafts 34; 36 are mounted in the side walls 33 of the prefabrication 27 and are mutually connected by means of shaft segments 37; 38 or gears synchronized.
  • a torsion bar spring 39; 41 used at the center of the shaft 34; 36.
  • One end of the torsion bar spring 39; 41 is with the shaft 34; 46 connected; the other end of the torsion spring 39; 41 is fixed in a not suitable clamping device.
  • This tensioning device is located on the outside of the non-visible side wall, which lies opposite the side wall 33.
  • Each pre-fold clamping element 31; 32 is formed with a thickening at its end close to the periphery and on the side connected to the prefolded product.
  • the shaft 34 carries radially in the direction of the periphery 42 of the prefabrication 27, finger-like, resilient supports 43 which are spaced apart from each other at a distance a 46. That is, the end of the pre-fold clamping elements 31 acting on the folded product; 32 protrudes in comparison to the carrier 43.
  • the second shaft 36 carries in the same way carrier 44, each with a cylindrical thickening 47.
  • the thickening 46; 47 are rounded on their side acting on the folded product by 320 °, but at least by more than 180 °.
  • the carrier 43; 44 with the thickenings 46; 47 each work as pairs 29 of pre-fold clamping elements 31; 32 together.
  • the shaft 34 On one of the waves, e.g. B. the shaft 34 is located a control arm 49 on the shaft end with the clamping point of the torsion bar spring 39.
  • the control arm 49 has at its torsion bar end a roller 51, which runs on a known side-mounted control cam track 52.
  • Rotation axes 53; 54 of Vorf a Izzy linders 27 and the folding knife, slot bar and NOTEurzy li nders 22 are by means of an imaginary central 56 and the axis of rotation 54 is spaced by means of an imaginary centers 57 to an axis of rotation 58 of the cutting cylinder 21. Below these centers 56; 57, the cylinder 22 is surrounded by tenste l If the first paper guide rods 59.
  • the Vorf a Izzy l nder 27 are two between the side frames 8; 9 resiliently mounted folding rollers 61, also belonging to the cross-cutting and cross-folding device 18; 62 to finish folding the printed products.
  • the transport of pre-folded printed products between the prefilter 27 and the folding rollers 61; 62 takes place by means of two interacting belt systems 63; 64.
  • the tapes of the first tape system 63 are on the circumference 42 of the prefabricating device 27 in between the pairs 29 of prefolding clamping elements 31; 32 located grooves 66 and a part of the circumference of the first folding roller 61.
  • the Vorf a Izzy li nder 27 opposite the periphery 42 has a secant-like surface 67 which extends in the axis-parallel direction (FIG. 2). This surface 67 has between the closed pairs 29 of the
  • Pre-fold clamping elements 31; 32 a depth t which is greater than twice the radius r of the thickenings 46; 47.
  • a secant-like surface 77 extending in the axis-parallel direction to the transport and folding knife cylinder 22 is provided in each case at the point at which folding knives 23 are arranged.
  • the second belt system 64 is guided above and to the side of the prefabricating cylinder 27, partly by means of band guide rollers 68, around the prefolding cylinder 27 and around the second folding roller 62. Both belt systems 63; 64 interact with each other.
  • the clear distance between the two folding rollers 61; 62 can be adjusted according to the thickness of the transverse fold product by means of a known folding roller gap adjustment device 74. Both folding rollers 61; 62 are therefore resiliently mounted against each other in a known manner to temporarily thicken folding products, z. B. after the change and the connection of Paper webs to compensate.
  • FIG. 8 shows a known paddle wheel 69 with a known printed product ejection system 71 for displaying the transverse fold products on a delivery belt 72.
  • the delivery belt 27 is preceded by a guide belt 73 located laterally on the paddle wheel 69 in the vertical direction.
  • Pre-fold clamping elements 31; 32 is adjustable by means of the shape of the control curve 52.
  • the control cam track 52 viewed in the axial direction in cross section, has a width f which corresponds to a multiple width g of the laurel lens track.
  • the control cam track 52 has an increase in cross section, ie over a thickness of the control cam 84, which increases in the direction of the side frame 8.
  • the control cam 8 is configured in the shape of a truncated cone and is displaceably arranged in the axial direction E of the prefix 27.
  • the control cam 84 has a central bore and is laterally on a sleeve-shaped St eue rvent rage r 86 attached, wherein an inner diameter of the central bore and an inner diameter of the cam carrier 86 is the same and both parts 84; 86 are preferably formed in one piece (Fig. 3).
  • the control cam carrier 86 is arranged together with the control cam 84 coaxially on a side-mounted bearing bushing 87, which in turn accommodates a shaft journal 88 of the prefabricated cylinder 27 in a ball bearing 89 inside.
  • the sleeve-like part of the cam carrier 86 has on its lateral surface 91 an external thread 92 and is by means of z. B. a key 93 on the St eue r curve carrier 86 rotatably and axially displaceable.
  • An internal thread sleeve 94 engages with the external thread 92 of the control valve 86, which is connected in one piece to a guide ring 96 on its side side.
  • the guide ring 96 is rotatably supported with its inner tread on the outer surface 91 of the control rage rs 86 and is z. B. by means of a two-part se i tengest l If most retaining ring 97, which engages in a circumferential surface 98 in the circumferential groove 99, secured against axial displacement.
  • the internal thread sleeve 94 has on its outer surface 98 a toothing 101, which, for. B. by means of a toothed belt 102 with a toothed pulley 103 be tenelte ll fixed motor 104 is connected.
  • the motor 104 is coupled in a rotationally fixed manner to a rotary encoder 106.
  • the internal thread sleeve 94 is rotated by means of the drive 104 to 101, so that the cam carrier 86 is thereby moved in the axial direction E. Is the roller 51 on the Steue r curve 52 in another, z. B. higher position than shown in Fig. 3, the width of the pre-fold nip 81 is reduced.
  • control roller 51 can also have a truncated cone-shaped configuration and thus adapt to the slope of the control cam track 52.
  • the slope of the control curve 52 corresponds to a height of the stroke of the control roller 51.
  • control cam track 52 can also be arranged in the axial direction and the control arm 49 carrying the roller 51 can be adjustable in the axial direction on the spindle or the torsion bar spring 41.
  • the control cam track 52 it is essential that which is inclined with respect to the axis of rotation 53 of the Vor a Izzy linders 27 cam track 52 relative to the cam roller 51.
  • the roller 51 located on the control arm 49 can also run on a control cam track, seen in cross section, which is flat and runs in the axial direction 53 of the prefabricated cylinder 27.
  • the cylindrical support roller serves to support the axial forces generated by the control cam.
  • a procedure for cross-folding signatures is as follows.
  • FIG. 2 shows a position D of the cylinders 22; 27, in which both the pre-fold clamping elements 31; 32 and the folding knife 23 have already passed through the center 56 by an angle of rotation alpha.
  • the pre-fold clamping elements 31 close; 32 like pliers, or mouth-like, and form a pre-fold 83 on the signature 78.
  • Pre-fold nip 81 pulled counterclockwise direction B of the transport and forme cylinder 22 from the leading part 79 of the signature 78 (see also DE 195 33 064 AD.
  • the pre-fold 83 is beyond an imaginary relaxation line of the two thickenings 46; 47 and within the two pre-fold clamping elements 31; 32 designed as a bead.
  • the radius r of a thickening 46; 47 smaller than the depth of penetration of a folding blade 23 into a pre-alz clamping gap 81.
  • Counterclockwise rotation C is the non-indicative pre-felt product between the two belt systems 63; 64 added.
  • the belt systems 63 separate approximately half a revolution of the prefabricating cylinder 27 after the prefolding process; 64 of the prefabricated cylinder 27 (not shown in FIG. 1), the first belt system 63 the prefabricated product with the prefolded clamping elements 31; 32 has just lifted out on its pre-fold 83 and subsequently both tape systems 63; 64 the prefabricated product the folding rollers 61; Feed 62 to finish folding.
  • the finished folded printed product is transferred to the paddle wheel 69 and subsequently placed on the delivery belt 72.
  • the advantages of pre-folding in two-stage cross folding are that due to the rounding of the peripheral parts of the pre-folding elements for the signature, there is a larger support distance between the folding knife and pre-folding clamping element than is known Fa flap systems. Due to this larger support spacing and the rounding of the parts close to the periphery, thick folded products can be introduced into the pre-fold clamping gap without damage and with less force than with conventional folding jaw systems.
  • the rounded pre-fold clamping elements protect the outer layers of the folded product due to their large contact area. The inner layers of the folded product are protected by the fact that the folding knife can unwind over the rounded pre-fold clamping elements without pinching the pre-fold product.
  • the punctures are additionally retracted by an amount of the penetration depth of the folding knife into the prefabricated pinch gap when retracting from the leading edge of the signature.
  • E Movement Direction (84, 86) a distance (47, 47; 46, 46) f width (84) g width (51) m number (28) n number (29) r radius (46; 47) t depth (67)

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

L'invention concerne un dispositif pour le pliage préalable de cahiers d'imprimerie. Ce dispositif permet la réalisation de pliures préalables transversales dans des produits imprimés fins et épais, dans la position correcte et sans endommager le produit. L'invention est caractérisée en ce que les mâchoires de pliage sont configurées de manière à être arrondies avec un certain rayon à chaque extrémité périphérique.
PCT/DE1998/001106 1997-04-21 1998-04-21 Dispositif pour le pliage transversal de cahiers d'imprimerie WO1998047803A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19716625.3 1997-04-21
DE1997116625 DE19716625A1 (de) 1997-04-21 1997-04-21 Einrichtung zum Vorfalzen von Signaturen

Publications (3)

Publication Number Publication Date
WO1998047803A2 true WO1998047803A2 (fr) 1998-10-29
WO1998047803A3 WO1998047803A3 (fr) 1998-12-30
WO1998047803B1 WO1998047803B1 (fr) 1999-02-11

Family

ID=7827166

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/001106 WO1998047803A2 (fr) 1997-04-21 1998-04-21 Dispositif pour le pliage transversal de cahiers d'imprimerie

Country Status (2)

Country Link
DE (1) DE19716625A1 (fr)
WO (1) WO1998047803A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105881971A (zh) * 2016-06-19 2016-08-24 瑞安市立林机械有限公司 一种纸袋机大毂轮侧夹及凸轮同步调整机构
US10449746B2 (en) 2016-06-27 2019-10-22 C. G. Bretting Manufacturing Co., Inc. Web processing system with multiple folding arrangements fed by a single web handling arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002348A1 (de) * 2004-01-16 2005-08-11 Koenig & Bauer Ag Falzapparat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505567A (fr) * 1966-11-04 1967-12-15 Dispositif de pliage sur machines rotatives ou autres
DE2103946A1 (de) * 1971-01-28 1972-08-17 Albert Schnellpressen Falzklappenzylinder im Falzapparat von Rotationsdruckmaschinen
DE3143243A1 (de) * 1981-10-31 1983-05-11 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach "falzapparat mit einer bandleitung zur bogenfuehrung"

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE174019C (fr) *
GB350949A (en) * 1930-03-17 1931-06-17 Hoe & Co R Improvements in or relating to folding mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505567A (fr) * 1966-11-04 1967-12-15 Dispositif de pliage sur machines rotatives ou autres
DE2103946A1 (de) * 1971-01-28 1972-08-17 Albert Schnellpressen Falzklappenzylinder im Falzapparat von Rotationsdruckmaschinen
DE3143243A1 (de) * 1981-10-31 1983-05-11 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach "falzapparat mit einer bandleitung zur bogenfuehrung"

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105881971A (zh) * 2016-06-19 2016-08-24 瑞安市立林机械有限公司 一种纸袋机大毂轮侧夹及凸轮同步调整机构
US10449746B2 (en) 2016-06-27 2019-10-22 C. G. Bretting Manufacturing Co., Inc. Web processing system with multiple folding arrangements fed by a single web handling arrangement

Also Published As

Publication number Publication date
DE19716625A1 (de) 1998-11-05
WO1998047803A3 (fr) 1998-12-30

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