EP0222152B1 - Plieuse à lames engageantes - Google Patents

Plieuse à lames engageantes Download PDF

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Publication number
EP0222152B1
EP0222152B1 EP86113830A EP86113830A EP0222152B1 EP 0222152 B1 EP0222152 B1 EP 0222152B1 EP 86113830 A EP86113830 A EP 86113830A EP 86113830 A EP86113830 A EP 86113830A EP 0222152 B1 EP0222152 B1 EP 0222152B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cutting
folding
collecting
folder
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
EP86113830A
Other languages
German (de)
English (en)
Other versions
EP0222152A3 (en
EP0222152A2 (fr
Inventor
Hans-Bernhard Dr.-Ing. Bolza-Schünemann
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
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 and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0222152A2 publication Critical patent/EP0222152A2/fr
Publication of EP0222152A3 publication Critical patent/EP0222152A3/de
Application granted granted Critical
Publication of EP0222152B1 publication Critical patent/EP0222152B1/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
    • 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
    • B65H45/161—Flying tuck folders
    • 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
    • B41F13/60—Folding or cutting crosswise
    • 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
    • B65H29/50—Piling apparatus of which the discharge point moves in accordance with the height to the pile
    • B65H29/51—Piling apparatus of which the discharge point moves in accordance with the height to the pile piling by collecting on the periphery of cylinders
    • 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

Definitions

  • the invention relates to a wheel folder according to the preamble of claim 1.
  • Such devices are known in various designs.
  • a 2/2 folding folder cylinder carries two rotating folding knives and also serves as a counter-cutting cylinder with cutting strips and two sets of punctures for paper transport. It is cut with a 1/2 cutting cylinder, which carries a cutter bar and can also serve as a collecting cylinder using a puncture set.
  • the advantage of this widespread 2: 1 wheel-type case apparatus is its robust, simple and economical construction.
  • 2-wheel fold are folding capacities of up to 160 pages and high running speeds, because the collecting sheets are not guided around a 1/2 large cylinder, but around a 1/2 large cylinder, which only rotates at 2/3 the speed of the 2/2 plate cylinder of the newspaper press rotates and exerts only 1/3 of the centrifugal force of the 2: 1 folder.
  • the main disadvantage of the 3: 2-wheel folder is the complicated design with the hollow collecting cylinder rotating eccentrically around the folder holder. Switching from double to collective production by decommissioning one of the two folding knives within the hollow cylinder is difficult to access and complex. Even more serious is the fact that the 2/2 cutting knife cylinder cuts against the hollow collecting cylinder, which is not very stable for design reasons. When cutting thick-sided newspapers, considerable cutting forces occur. The alternating bending caused by centrifugal force and cutting force has in practice led to material fatigue on the hollow collecting cylinder and dangerous fatigue fractures.
  • Another 3: 2-wheel drum according to US-PS 31 44 249 works within the 3/2-cylinder with three rotating folding knives. Switching from double to collective production is done conveniently from the outside by letting the sun gear move along in batches, which suppresses every second hypocycloid tip. With the sun gear stationary, however, all three knives swing to hypocycloid tips at the same time. For this reason, a 3/2-sized, hollow collecting cylinder must rotate as a relatively weak casing and eccentrically offset to the axis of the folding knife carrier in order to prevent the upper hypocycloid tips from emerging from the casing of the collecting cylinder. This construction is therefore also characterized by high cutting forces on the hollow collecting cylinder and endangered by fatigue fractures.
  • US Pat. No. 3,348,837 works without an eccentrically offset rotating 3/2 collecting cylinder.
  • the 3/2-cylinder is designed as a solid cylinder and three rotating folding knives are fixed in the collecting cylinder, which is also the folding knife holder.
  • the high cutting forces between the 2/2 cutting cylinder and the 3/2 collecting cylinder are thus absorbed by solid cylinders.
  • a hollow collecting cylinder which has to absorb high cutting forces, is missing, so there is no risk of hairline cracks and fatigue breaks.
  • the disadvantage is the strongly fluctuating paper pull on the incoming strands during collective production, which can lead to slotted pinholes and flying copies. Because the orbits are drawn alternately by the radius of the next 3/2-cylinder surface and then by the radius enlarged by the circumferential - thick - collecting layer. It is also disadvantageous in US-PS 33 48 837, the considerable gear expenditure in order to collect - d. H. on two cylinder revolutions for each of the three folding knives to eliminate four of six hypocycloid tips which occur by corresponding running of the respective sun gears.
  • the object of the invention is a wheel folder for double and collective production of strong products at high running speeds, i. H. to create with a cylinder ratio of folding knife cylinder to cutting cylinder greater than 2: 1 1.
  • the high cutting forces of massive cylinders should be able to be absorbed.
  • an almost uniform paper draw should be aimed for.
  • the wheel folder according to the invention consists of a cutting knife cylinder which carries three sets of cutting knives on the circumference and three point sets, so that it can also serve as a 3/2 collecting cylinder.
  • the counter-cutting cylinder also has a 3/2 circumference, carries three counter-cutting bars, three sets of punctures and three rotating folding knives, which always describe normal hypocycloids with three tips.
  • the tip of the lower folding knife stop pushes the products into correspondingly arranged folding rollers.
  • each cutting knife does not operate in a skipped manner but always together with the same counter cutting bar.
  • Means are also available to selectively control the punctures of the 3/2 cutting knife collecting cylinder and the 3/2 folding knife cylinder in such a way that double or collective production occurs.
  • hollow cylinders rotating in an eccentrically offset manner can be dispensed with.
  • the incoming strands can be used in double and bulk production with almost even, i.e. H. not very pulsating paper pull are pulled from the folding cylinder group.
  • Another advantage is that superimposition and other gears are eliminated, i. H. the rotating folding knives can describe hypocycloids produced by robust, simple gears. After all, the folding cylinder group has no more than two cylinders.
  • the 3 3 folder d. H. three-field folding knife cylinder and three-field cutting cylinder are characterized by their space-saving, simple and robust design.
  • the collecting layer runs around the cutting cylinder in contrast to known 3 2-fold devices and, similar to 2: 1 folders, is needled onto the incoming strand from above.
  • the gathering layer does not increase the radius of the 3/2-fold knife cylinder, so that the paper pull is not influenced by the gathering layer.
  • double and bulk production there are almost the same draw ratios because 3/2 folding knife and 3/2 cutting cylinders have curvatures of the same size; it remains the same for the incoming strand, whether z.
  • the cutting / collecting cylinder is arranged in such a low position on the folding knife cylinder that the hypocycloid tip emerging at the top right does not touch the incoming strand.
  • the folder knives should emerge from the folder cylinder surface several times - three times, so that a simple, unmodified folder movement can be used.
  • Fig. 1 are over former 1; 2 paper webs 3 longitudinally folded and the strands 4; 5 passed by means of pull rollers 6 and union rollers 7 onto the 3/2-fold knife cylinder 8.
  • Three sets of punctures 9.1; 9.2; 9.3 alternately needles the combined strand 10 on the 3/2-fold knife cylinder 8 and, in the case of double production, guide the cut sheets directly into the folding rollers 11.
  • Folding knife 12 offset by 120 °; 13; 14 are rotatably mounted in the folding knife cylinder 8 and, by means of an internal gear ratio 3: 1 against a stationary sun gear, describe three-pointed hypocycloids known per se compared to a stationary system. Folding knife 12 is just pushing a newspaper into folding rollers 11.
  • a 3/2 cutting knife cylinder 15 carries three cutting knives 16 offset by 120 °, as well as three sets of controllable punctures 17.1; 17.2; 17.3.
  • the punctures 17.1 to 17.3 are always drawn in in the cutting line and the punctures 9.1 to 9.3 are always extended, so that after the cut all sheets are guided around the folding blade cylinder 8 and immediately pushed into the folding rollers 11.
  • the punctures 9.1 to 9.3, 17.1 to 17.3 are alternately controlled in such a way that odd-numbered (A) arcs are guided around the cutting-collecting cylinder 15 and three steps later together with an even-numbered (B) arch through punctures 9.1 to 9.3 of the folding blade cylinder 8 are needled and guided to the folding rollers 11, into which the rotating folding blades 12 to 14 protrude.
  • the two-cylinder folder is driven by a longitudinal shaft 20, standing shaft 21, transverse shaft 22. From the standing shaft 21, the drive for the pull rollers 6, 7 and the hopper inlet roller 23 is also derived.
  • Fig. 2.1 to 2.6 explain the collective production when starting up.
  • First sheet 101 hangs in punctures 17.1 of cutting collecting cylinder 15, puncture 9.2 takes sheet 102, while puncture 17.2 in cutting collecting cylinder 15 withdraws.
  • Second sheet 102 (FIG. 2.2) is guided from point 9.2 to folding knife cylinder 8 for folding, while point 9.3 is withdrawn.
  • point 17.3 takes sheet 103 and guides it - Fig. 2.3 - around the cutting collecting cylinder 15.
  • Point 17.1 has brought sheet 101 again to the cutting line - here it is taken from point 9.1, which has already entered incoming sheet 104.
  • the cover plates 37; 38 rotate counter to the direction of rotation of the associated cylinders 8, 15, but only at 3/4 of the cylinder speed.
  • cover plate 37 closes curve 34 and allows punctures 9.2 of the folding knife cylinder to extend.
  • the cam 36 of the fixed control cam 33 remains open because the cover disk 38 is at a 90 ° distance from the cam 36.
  • collection point 17.2 withdraws to point 9.2 for the purpose of transferring the bow.
  • Puncture 9.2 guides the following sheet 102 around the folding knife cylinder 8. The position corresponds to phases 2.1 and 2.3 and 2.5.
  • Fig. 3.2 (or phase image series Fig. 2.2 and Fig. 2.4 and Fig.
  • the cover plate 37 is 30 ° in front of curve 35, leaves the curve 35 active and the puncture 9.2 withdrawn.
  • the cover disk mechanism works in such a way that with every second passing puncture 9.1 to 9.3, 17.1 to 17.3, alternating cam valleys 34 for folding knife cylinder 8 and cam 36 for cutting collecting cylinder 15 are covered, while the cam 35 offset by 120 ° for each passing puncture 9.1, 9.2 and 9.3 remains active, ie is not covered.
  • Both circumferential cover disks 37; 38 have 34; 35; 36 two circular arc pieces offset by 180 °. They are over gears 40; 41 and intermediate wheels 42; 43 driven in rotation ratio 3: 4 by drive wheels 44; 45.
  • the cam 36 always remains active, so that punctures 17.1 to 17.3, always drawn through the interface, cannot pass a collecting arc around the cutting-collecting cylinder 15.
  • the cylinder ratio can also be selected from 5: 5 or 7: 7 instead of 3: 3 to reduce the centrifugal force values. While the cutting collecting cylinder 15 must always have an odd number of punctures or fields, the folding knife cylinder 8 can also have an even number. This means that 4: 3 or 6: 3 or 6: 5 ratios are also possible. Cutting knives and counter-cutting bars could also be interchanged on the cylinders 8, 15, but this leads to malfunctions during the folding process due to the above cutting knives and is not recommended.
  • a snippet is avoided during the second passage of the collecting sheet through the interface in that the diameter of the cutting collecting cylinder 15 is kept slightly smaller than the diameter of the folding knife cylinder 8.
  • the layers revolving around the cutting-collecting cylinder are cut somewhat shorter than the layers guided around the folding knife cylinder 8.
  • Another shortening effect for the collecting layers occurs in that they run on the somewhat larger folding knife cylinder not on the cylinder surface, but on a radius increased by the thickness of the sheet package, so that the angle taken is less than 120 °.

Landscapes

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

Claims (4)

1. Plieuse à lames engageantes comportant un cylindre de découpage (15), un cylindre à lames de pliage (8) coopérant avec le cylindre de coupe et un cylindre de pliage (11) coopérant avec ce dernier, les deux cylindres étant munis de moyens de transport de feuilles susceptibles d'être commandés, caractérisée en ce que le cylindre à lames de pliage (8) et le cylindre de découpage (15) sont pourvus d'un nombre identique de zones et en ce que ce nombre de zones est plus grand que un et impair.
2. Plieuse à lames engageantes selon la revendication 1, caractérisée en ce que le cylindre à lames de pliage (8) est pourvu de contre-bandes de découpe.
3. Plieuse à lames engageantes selon la revendication ou 2, caractérisée en ce que le cylindre à lames (15) est réalisé sous la forme d'un cylindre collecteur.
4. Plieuse à lames engageantes selon l'une des revendications 1 à 3, caractérisée en ce que le cylindre lames de pliage (8) et le cylindre de découpage (15) sont munis de pointes (9.1 à 9.3, 17.1 à 17.3) susceptibles d'être commandées.
EP86113830A 1985-11-04 1986-10-06 Plieuse à lames engageantes Expired - Lifetime EP0222152B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3539085 1985-11-04
DE3539085 1985-11-04
DE19863629359 DE3629359A1 (de) 1985-11-04 1986-08-29 Raederfalzapparat
DE3629359 1986-08-29

Publications (3)

Publication Number Publication Date
EP0222152A2 EP0222152A2 (fr) 1987-05-20
EP0222152A3 EP0222152A3 (en) 1988-03-23
EP0222152B1 true EP0222152B1 (fr) 1990-01-03

Family

ID=25837543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113830A Expired - Lifetime EP0222152B1 (fr) 1985-11-04 1986-10-06 Plieuse à lames engageantes

Country Status (2)

Country Link
EP (1) EP0222152B1 (fr)
DE (2) DE3629359A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160101C1 (de) * 2001-12-07 2003-07-03 Koenig & Bauer Ag Räderfalzapparat

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711576B1 (fr) * 1993-10-26 1996-01-19 Heidelberg Harris Sa Dispositif de commande de l'accumulation ou non accumulation d'un cylindre coupeur-accumulateur d'une plieuse.
DE4344622A1 (de) * 1993-12-24 1995-06-29 Koenig & Bauer Ag Räderfalzapparat für eine Rotationsdruckmaschine
US20130269493A1 (en) * 2012-04-17 2013-10-17 Goss International Americas, Inc. Variable cutoff in a cutter folder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT222671B (de) * 1959-01-22 1962-08-10 Winkler Fallert & Co Maschf Falzapparat
US3144249A (en) * 1962-10-25 1964-08-11 Hoe & Co R Rotary folding mechanism drive means
US3348837A (en) * 1965-04-13 1967-10-24 Koenig & Bauer Schnellpressfab Folding blade carrier with tubular, double sun gearing
US3865361A (en) * 1973-09-11 1975-02-11 John C Motter Printing Press C Folder cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160101C1 (de) * 2001-12-07 2003-07-03 Koenig & Bauer Ag Räderfalzapparat
US7083562B2 (en) 2001-12-07 2006-08-01 Koenig & Bauer Aktiengesellschaft Geared folding apparatus

Also Published As

Publication number Publication date
EP0222152A3 (en) 1988-03-23
EP0222152A2 (fr) 1987-05-20
DE3667938D1 (de) 1990-02-08
DE3629359A1 (de) 1987-05-14

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