EP0354176A1 - Machine à plier les feuilles de papier - Google Patents

Machine à plier les feuilles de papier Download PDF

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Publication number
EP0354176A1
EP0354176A1 EP89810540A EP89810540A EP0354176A1 EP 0354176 A1 EP0354176 A1 EP 0354176A1 EP 89810540 A EP89810540 A EP 89810540A EP 89810540 A EP89810540 A EP 89810540A EP 0354176 A1 EP0354176 A1 EP 0354176A1
Authority
EP
European Patent Office
Prior art keywords
folding
paper
paper sheet
sheet
gap
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.)
Granted
Application number
EP89810540A
Other languages
German (de)
English (en)
Other versions
EP0354176B1 (fr
Inventor
Otto Dipl.-Ing. Bay
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT89810540T priority Critical patent/ATE83215T1/de
Publication of EP0354176A1 publication Critical patent/EP0354176A1/fr
Application granted granted Critical
Publication of EP0354176B1 publication Critical patent/EP0354176B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H15/00—Overturning articles
    • B65H15/008—Overturning articles employing belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/14—Buckling folders

Definitions

  • the invention relates to a machine for folding paper sheets, the paper sheet being foldable by means of oppositely movable folding members, from the folding members a driven, the paper sheet clamping and transporting feed roller pair is arranged, the folding members have at least two endless, driven folding belts which are each wrapped around two rollers, the axes of which lie in the same plane, and at least one third, endless, driven folding belt is present, a folding gap being formed between these folding belts, and a control device for the reversible drive of the folding belts being present.
  • a device for folding sheets of paper in which several folding rollers are provided which cause the incoming sheets to fold by changing the direction of rotation.
  • a loop of the paper sheet is formed in the vicinity of the inlet opening, which is gripped by the folding rollers and then formed into a fold.
  • EP-A-0 156 326 shows a horizontal folding machine for folding sheets, in which for measuring the length of the sheets there is a measuring roller running on it, which cooperates with a pulse generator. The trailing edge of the sheet is scanned by a sensor removed from the folding mechanism. With large sheet lengths, this requires a considerable amount of space and, moreover, the folding cannot be predetermined.
  • the object to be achieved by the machine according to the invention is to create a compact, space-saving folding machine and a control assigned to it, with which the paper sheets of different lengths output by an upstream printer are automatically folded according to a predetermined folding program.
  • the solution to this problem is characterized in that at least one sensor scanning the paper sheet leading edge and a signal transmitter are provided, which are connected to the control device, the control device contains at least one memory for storing predetermined folding programs and the signal transmitter for outputting one assigned to the respective paper sheet length , the relevant folding program from the memory signal is formed.
  • the object to be achieved with the method according to the invention is to be able to use a folding machine for folding paper sheets, in particular for operating a machine according to claim 1 or 7 for printed drawing sheets, if the drawing head instead of close to the leading edge of a sheet of paper output by the printer is close to the trailing edge of the sheet or vice versa.
  • the method according to the invention is characterized in that the paper sheet is introduced with its leading edge first into a vertical or approximately vertical turning gap and is removed from it with its trailing edge ahead and is fed to a folding machine in this position.
  • the turning device can be integrated into the folding machine to save space.
  • the same folding machine can optionally be used for the input of drawing sheets with a drawing head in one or the other of the positions mentioned.
  • the folding machine has an essentially rectangular frame 1 and is placed on the floor next to a printer, preferably a xerographic printer.
  • the folding machine can be pivotally connected to the printer.
  • the sheets of paper 9 printed by the printer and printed on normal or tracing paper, which are usually large drawings in a standardized format, are fed to an infeed conveyor with transport rollers 2.
  • a sensor 4 In front of a pair of infeed rollers 3 there is a sensor 4, in particular a light barrier or a sensor for scanning the front edge 17 of the incoming sheet of paper 9.
  • This pair of infeed rollers 3, driven by a stepping motor 8 ' clamps the sheet of paper 9 in an inlet nip 19 and transports it at a predetermined feed rate in the direction of arrow B (Fig.
  • This folding chamber 7 is located between a first upper folding band 5, a second lower folding band 6 and a third parallel folding band 10.
  • the axes of rotation 11 of the two rollers 12 receiving the endless folding bands 5, 6 lie in a common first vertical plane.
  • the third, endless folding belt 10 located behind the two folding belts 5, 6 is longer than the upper and lower folding belts 5, 6.
  • the two rollers 15 of this third folding belt 10 are located in a parallel, second vertical plane distant from the first vertical plane mentioned.
  • the third folding band 10 is in the area of the folding chamber 7 by means of spring-loaded counter-pressure rollers 13 supported.
  • An approximately vertical folding gap 14 is formed between the folding tape 10 and each of the two folding tapes 5, 6.
  • the axes 25 of the inlet roller pair 3 are offset in height relative to the adjacent axes 11 of the rollers 12, so that the paper sheet 9 fed between guide plates 23 strikes the folding tape 10 in an inclined position, which results in the initial deflection of the leading edge 17 of the incoming paper sheet 9 in the folding chamber 7 relieved above.
  • These folding tapes 5, 6, 10 are driven together by a stepper motor 8 with a reversible direction of rotation.
  • the inlet rollers 3 are driven by a second stepper motor 8 '.
  • a second sensor 16 In the upper area of the two folding tapes 5 and 10 there is a second sensor 16, in particular a light barrier or a sensor, which scans the incoming front edge 17 of the paper sheet 9.
  • This sensor 16 lies between two adjacent partial folding belts, each arranged on the same pair of rollers 12, 15. Instead of several partial folding tapes with lateral spacing, the folding tapes 5, 6, 10 could also consist of translucent material. There is a predetermined distance between the first and second sensors 4, 16.
  • a switch 18 for the outgoing folding pieces is installed above the folding tapes 5, 10. Depending on the pivoting position of this switch 18, the folding piece enters the channel 20 or 21.
  • the switch 18 is or the like about a horizontal axis 22 by means of an electrically controlled pull magnet. pivotable, which engages a radially projecting arm in front of the axis 22.
  • the folding piece 42 (FIG. 6) passes between two opposing conveyor rollers 24 onto a conveyor belt 28 leading to a cross folder 26.
  • the cross folder 26 contains a sword 32 fastened to a pivotably mounted arm 30, which can engage between two transverse folding rollers 34. By lowering the sword 32, the supplied Folding piece 42 additionally folded in the transverse direction.
  • the sword arm 30 is driven by an eccentric 38.
  • the additionally cross-folded folding piece 42 then arrives on a conveyor belt 36 and can subsequently be removed from an output compartment 37.
  • the transverse folder 26 Since the transverse folder 26 is located spatially above the location where the paper sheet feeder with the transport rollers 2 arranged underneath is present, this results in a small space requirement in the machine longitudinal direction.
  • the switch 18 When the switch 18 is in the other position, the folding piece reaches the channel 21, is gripped by the rollers 40 and then conveyed into a storage compartment or a table.
  • This folding machine works as follows: A flat paper sheet with a normal format, on which drawings, circuit diagrams or the like are output by a printer 76, in particular an electrostatic printer. can be printed xerographically, reaches the inlet conveyor 2 'with the transport rollers 2.
  • the sensor 4 detects the supply of the leading edge 17 of the sheet of paper 9.
  • the paper sheet 9 is then transported by the feed rollers 3 in the direction of arrow B and passes between the guide plates 23 into the folding chamber 7.
  • the front edge region of the paper web 9 is gripped by the two belts 5, 10 moving upwards in the direction of arrow A and the Sheet of paper 9 is moved upwards in the folding gap 14.
  • the electronic control unit supplies the stepping motor 8 driving the folding tapes 5, 6, 10 with a predetermined number of step pulses, in accordance with the folding program provided.
  • the electronic control circuit 35 reverses the direction of rotation of the folding tapes 5, 6, 10.
  • the paper sheet in the folding gap 14 is moved downward - that is, counter to the direction of arrow A - at the same time Paper feed through the feed rollers 3 in the direction of arrow B.
  • the stepper motor 8 'does not change direction of rotation.
  • the feed speed of the paper sheet 9 through the feed roller pair 3 and its linear speed in the folding nip 14 are the same.
  • the part of the paper sheet moved downward forms a crease 31 in the folding chamber 7, which reaches the area of the lower folding band 6, as can be seen from FIG. 5.
  • a first folding occurs when the crease area of the paper sheet 9 between the lower folding tape 6 and the folding tape 10 is detected.
  • the downward movement of the folding tapes 5, 6, 10 in the direction of arrow C with the paper sheet 9 located in the folding gap 14 is continued until the predetermined folding length is reached.
  • This is controlled by a pulse number determined by the electronic control circuit and fed to the stepping motor 8.
  • the direction of rotation is then changed again, i.e. the folding tapes 5, 6, 10 are moved so that the paper sheet 9 in the folding gap 4 moves again in the direction of arrow A.
  • a kink is formed again in the folding chamber 7.
  • the process described is repeated with a change in the direction of the tape. Shorter intermediate folds are possible than with the cover sheets, as can be seen from FIG. 6.
  • FIG. 6 shows a zigzag-shaped folding piece 42 with a total of five zigzag-shaped folding operations as an example.
  • the folding piece 42 is shown pulled apart for the sake of better illustration; in reality the folds are close together.
  • the folding process is carried out so that the character tion head 48 is always on the cover sheet and is therefore visible in the folded state.
  • the folding piece 42 is ejected upwards from the folding gap 14.
  • either channel 20 or 21 is open. If the electronic control circuit is set such that the channel 20 is open, the folding piece 42 is gripped by the conveyor rollers 24 and conveyed to the transverse folder 26.
  • the eccentric 38 connected to the arm 30 is driven and the sword 32 pushes the folding piece 42 between the transverse folding rollers 34 transversely to its folds.
  • the folded piece folded in this way then arrives on the conveyor belt 36 for removal into an output compartment 37 or a table.
  • the switch 18 is changed over so that the channel 21 is open.
  • the folding piece 42 is then gripped by the output roller pair 40 and conveyed, for example, to a table (not shown) or to a compartment.
  • the control circuit 35 is shown in the basic circuit diagram in FIG. 7.
  • the information provided by an electrostatic printer 76 contains information about the length of the paper sheet that has been countered, for example printed with a drawing. Since the drawings output by printer 76 are standardized formats, a certain length is assigned to each of these standard formats. This length is decisive for the folding programs to be carried out.
  • This information which is output by the control electronics 75 of the printer 76, arrives at a program memory 50. Whenever the front edge of an incoming paper sheet 9 reaches the sensor 4, the information lying at the input about this paper sheet 9, which is just arriving, is sent from the control electronics 75 of the printer 76 transferred to the input memory 50. There may also be multiple memories 50 if there should be several sheets of paper between the printer and the folder.
  • an initial pulse is generated which writes the information at input 50 into program memory 50.
  • a program decoder 56 is connected downstream of the program memory 50. This receives its information from an electronically programmable and erasable memory, called E-Prom 60, in which the data on the number of folds and the basic course of each fold are contained. All path lengths of the folding for the respective program are specified in the E-Prom 60. The correspondingly coded number of steps is loaded into the program counter 62. The unchangeable parts of the folding program are controlled by the program counter 62.
  • the program counter 58 is followed by a further program counter 64. With stepper motor 8, this causes the changeover to the forward / reverse direction of rotation.
  • This program counter 64 controls a digital-frequency converter 68, the output signal of which is fed to the control stage 70 for the stepper motor 8. This stage requires a frequency and a direction signal.
  • the sequence for the folding process is such that after the output of the initial pulse by the sensor 16, the program counter 62 is loaded. In this program stage, the length of the paper sheet 9 must be loaded into the program counter 62 by the control circuit 75 of the printer 76. This program counter 62 then counts down and is continuously decreased by the clock frequency of the oscillator 72. The entered program is then processed by controlling the stepping motor 8 forwards and backwards. At the same time, the input roller pair 3 assigned stepper motor 8 'driven with the same direction of rotation.
  • the folding piece 42 is ejected from the top of the folding gap 14 and, depending on the position of the switch 18, either reaches a transverse folder 26 via a conveyor belt 28 or an output station via the pair of rollers 40.
  • the printer 76 When the printer 76 outputs a signal associated with the length of the paper sheet just output via its signal generator 75, the paper sheet 9 runs directly and automatically from the printer 76 into the folding machine without manual intervention. In certain cases, e.g. when starting up the folding machine or when the printer is in another room, it is possible to manually enter a signal assigned to the length of the sheet of paper.
  • a manually operable signal output device 78 is provided, which can be actuated, for example, by pressing a button. The same signals can be output with this signal output device 78 as with the signal transmitter 75 of the printer 76. Different normalized lengths of the paper sheets are stored in the signal output device 78 and can be called up, for example, by pressing a key.
  • FIG. 8 shows an embodiment of the folding machine together with a turning device 39 for the paper sheet 9. It is thereby achieved that drawing sheets can be folded in the folding machine in such a way that the cover sheet always has the drawing head visible, regardless of whether the printer outputs the drawing with the drawing head 48 lying in front or behind.
  • the sheet of paper is fed in the direction of arrow C to a first clamping pair of transport rollers 43 at the bottom, into an inlet channel 41 , driven transport roller pair 44.
  • the paper sheet is then guided in a vertical or approximately vertical, open top, narrow turning gap 46 formed by two mutually parallel guide plates 45. This extends above the folding device.
  • the paper sheet 9 is conveyed with a certain swing in the turning gap 46 in the upward direction. After being released by the transport rollers 44, it falls back due to its own weight and is captured by the curved guide plate 47 in the clamping gap 77 between the two transport rollers 44, 48.
  • the paper sheet is then guided in the transport channel 49 between a horizontal guide surface 51 and a first, endless conveyor belt 55 to form a pair of rollers 53, 61.
  • the conveyor belt 55 is guided around the rollers 51, 53, 57, 59 and 61.
  • the rollers 53, 61 deflect the sheet of paper from the horizontal to the vertical.
  • the paper sheet is deflected upward in the vertical transport gap 67 in the direction of arrow T.
  • a second conveyor belt 63 is wrapped around two rollers 59, 61 lying vertically one above the other.
  • the run 63a of this conveyor belt runs parallel to the adjacent, parallel run of the conveyor belt 55, the speeds being the same and the direction of movement being the same.
  • the sheet of paper is thus transported in the gap 67 between the run 63a and the adjacent vertical run of the conveyor belt 55.
  • the paper sheet is output between the rollers 57 and 59.
  • the paper sheet then arrives in the direction of arrow B between rule the inlet roller pair 3, whereupon the folding process described takes place.
  • the folding piece 42 depending on the position of the switch, is guided in the direction of arrow D to a transverse folder 34 or in channel 82 in the direction of arrow E into an output compartment 29 or a table. So that the folding machine can optionally be operated with or without a turning device 39, the two rollers 57 and 59 can be lowered or pivoted together with the conveyor belts 63 into a non-operating position.
EP89810540A 1988-07-28 1989-07-17 Machine à plier les feuilles de papier Expired - Lifetime EP0354176B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810540T ATE83215T1 (de) 1988-07-28 1989-07-17 Maschine zum falten von papierbogen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH2873/88 1988-07-28
CH287388 1988-07-28
CH226589 1989-06-16
CH2265/89 1989-06-16

Publications (2)

Publication Number Publication Date
EP0354176A1 true EP0354176A1 (fr) 1990-02-07
EP0354176B1 EP0354176B1 (fr) 1992-12-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810540A Expired - Lifetime EP0354176B1 (fr) 1988-07-28 1989-07-17 Machine à plier les feuilles de papier

Country Status (2)

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EP (1) EP0354176B1 (fr)
DE (1) DE58902953D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239750A1 (en) * 1991-11-28 1993-06-03 Bay Otto Method for perforating folded and bound drawings - involves punching two holes in folded packet margin after last fold for filing
EP0590359A1 (fr) * 1992-09-30 1994-04-06 Vittorio Garrone Machine pour plier des feuilles de papier
EP0632340A2 (fr) * 1993-07-01 1995-01-04 Xerox Corporation Appareil pliant pour les feuilles à serrage doux d'emprise des rouleaux
US5540647A (en) * 1993-02-18 1996-07-30 Jensen Ag Burgdorf Folding apparatus for automatic folding of flatwork
EP0731049A1 (fr) * 1995-03-08 1996-09-11 ROTH & WEBER OHG Machine de pliage
EP0799786A1 (fr) * 1996-03-14 1997-10-08 Otto Dipl.-Ing. Bay Procédé et dispositif pour poinçonner des encoches ouvertes sur le bord dans la marge d'attache de feuilles pliées
DE102006042880A1 (de) * 2006-09-13 2008-03-27 Heidelberger Druckmaschinen Ag Vorrichtung zum Positionieren einer Hinterkante von Bogen
CN107720398A (zh) * 2017-10-30 2018-02-23 长江大学 一种烧纸折纸机
CN109368211A (zh) * 2018-09-28 2019-02-22 佛山市宾宏设备有限公司 一种纱布折叠机用自动翻转提带机构
CN116477413A (zh) * 2023-06-01 2023-07-25 济南海凌余亦生物科技有限公司 一种湿巾折叠装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014204663A1 (de) 2014-03-13 2015-09-17 Roth + Weber Gmbh Vorrichtung zum Lochen eines Heft- und/oder Lochrandes eines Druckmediums

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2011164A1 (fr) * 1968-06-18 1970-02-27 Funk & Co Inc
DE1958764A1 (de) * 1969-11-22 1971-05-27 Oppenweiler Binder & Co Maschb Vorrichtung zum Falzen eines 3fachen Parallelfalzes,bei welchem die offenen Bogenklappen gegen die Mitte gerichtet sind
FR2180347A5 (fr) * 1972-04-10 1973-11-23 Oce Van Der Grinten Nv
DE2227582A1 (de) * 1972-06-07 1974-01-03 Meteor Siegen Apparat Schmeck Vorrichtung zum falten von bogen aus papier, folien oder dergleichen
FR2546866A1 (fr) * 1983-06-06 1984-12-07 Kannegiesser H Gmbh Co Procede et appareil de pliage transversal et longitudinal multiple de pieces de linge
FR2570360A1 (fr) * 1984-09-18 1986-03-21 Michel Giovannini Machine pour le pliage des plans
EP0156326B1 (fr) * 1984-03-30 1989-06-28 METEOR-SIEGEN Apparatebau Paul Schmeck GmbH Plieuse à feuilles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2011164A1 (fr) * 1968-06-18 1970-02-27 Funk & Co Inc
DE1958764A1 (de) * 1969-11-22 1971-05-27 Oppenweiler Binder & Co Maschb Vorrichtung zum Falzen eines 3fachen Parallelfalzes,bei welchem die offenen Bogenklappen gegen die Mitte gerichtet sind
FR2180347A5 (fr) * 1972-04-10 1973-11-23 Oce Van Der Grinten Nv
DE2227582A1 (de) * 1972-06-07 1974-01-03 Meteor Siegen Apparat Schmeck Vorrichtung zum falten von bogen aus papier, folien oder dergleichen
FR2546866A1 (fr) * 1983-06-06 1984-12-07 Kannegiesser H Gmbh Co Procede et appareil de pliage transversal et longitudinal multiple de pieces de linge
EP0156326B1 (fr) * 1984-03-30 1989-06-28 METEOR-SIEGEN Apparatebau Paul Schmeck GmbH Plieuse à feuilles
FR2570360A1 (fr) * 1984-09-18 1986-03-21 Michel Giovannini Machine pour le pliage des plans

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 167 (M-488)(2223) 13 Juni 1986, & JP-A-61 018667 (KAZUO SUZUKI) 27 Januar 1986, *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239750A1 (en) * 1991-11-28 1993-06-03 Bay Otto Method for perforating folded and bound drawings - involves punching two holes in folded packet margin after last fold for filing
EP0590359A1 (fr) * 1992-09-30 1994-04-06 Vittorio Garrone Machine pour plier des feuilles de papier
US5540647A (en) * 1993-02-18 1996-07-30 Jensen Ag Burgdorf Folding apparatus for automatic folding of flatwork
EP0632340A2 (fr) * 1993-07-01 1995-01-04 Xerox Corporation Appareil pliant pour les feuilles à serrage doux d'emprise des rouleaux
EP0632340A3 (fr) * 1993-07-01 1995-03-08 Xerox Corp Appareil pliant pour les feuilles à serrage doux d'emprise des rouleaux.
EP0731049A1 (fr) * 1995-03-08 1996-09-11 ROTH & WEBER OHG Machine de pliage
EP0799786A1 (fr) * 1996-03-14 1997-10-08 Otto Dipl.-Ing. Bay Procédé et dispositif pour poinçonner des encoches ouvertes sur le bord dans la marge d'attache de feuilles pliées
DE102006042880A1 (de) * 2006-09-13 2008-03-27 Heidelberger Druckmaschinen Ag Vorrichtung zum Positionieren einer Hinterkante von Bogen
CN107720398A (zh) * 2017-10-30 2018-02-23 长江大学 一种烧纸折纸机
CN107720398B (zh) * 2017-10-30 2023-09-19 长江大学 一种烧纸折纸机
CN109368211A (zh) * 2018-09-28 2019-02-22 佛山市宾宏设备有限公司 一种纱布折叠机用自动翻转提带机构
CN109368211B (zh) * 2018-09-28 2023-06-16 佛山市宾宏设备有限公司 一种纱布折叠机用自动翻转提带机构
CN116477413A (zh) * 2023-06-01 2023-07-25 济南海凌余亦生物科技有限公司 一种湿巾折叠装置
CN116477413B (zh) * 2023-06-01 2023-12-12 阜阳市阳阳卫生科技有限公司 一种湿巾折叠装置

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Publication number Publication date
EP0354176B1 (fr) 1992-12-09
DE58902953D1 (de) 1993-01-21

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