EP0354176B1 - Machine à plier les feuilles de papier - Google Patents
Machine à plier les feuilles de papier Download PDFInfo
- Publication number
- EP0354176B1 EP0354176B1 EP89810540A EP89810540A EP0354176B1 EP 0354176 B1 EP0354176 B1 EP 0354176B1 EP 89810540 A EP89810540 A EP 89810540A EP 89810540 A EP89810540 A EP 89810540A EP 0354176 B1 EP0354176 B1 EP 0354176B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- folding
- paper sheet
- sheet
- paper
- rollers
- 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
Links
Images
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, a driven pair of infeed rollers which clamp the paper sheet and transport in the feed direction 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 present, which fold by changing the direction of rotation of the incoming arch.
- the folding rollers change direction of rotation, a loop of the paper sheet forms near the inlet opening, which is gripped by the folding rollers and then formed into a fold.
- Fixed microswitches which respond to the paper sheet in the folding nip, each cause the direction of rotation of the folding rollers to change.
- 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 is not predetermined.
- a turning device is disclosed in JP-A-61-18 667, in which a sheet is inserted loosely into a vertical gap with its leading edge. The trailing edge of the sheet is then deflected into a discharge opening by a central roller at the lower end of the column, so that the trailing sheet then runs out with its trailing edge ahead.
- the object to be achieved by the machine according to the invention is to create a compact, space-saving folding machine and an associated control with which the paper sheets of different lengths output by an upstream printer can be automatically longitudinally and transversely folded according to a predetermined folding program.
- the solution to this problem is characterized in that there are at least one sensor scanning the paper sheet leading edge and a signal transmitter, 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 of the respective paper sheet lengths , the relevant folding program is designed to call up the signal from the memory, that the folding tapes are assigned a stepper motor which can be changed in the direction of rotation and that there is a deflecting member above the folding tapes, which deflects the folded paper sheets to a transverse folder and the transverse folder is located spatially above the paper sheet inlet members.
- the arrangement of the cross folder above the sheet inlet into the folding machine enables a particularly compact design of the entire folding machine, with cross folding resulting in the parts list or the label head being on the cover sheet and being visible in the folded state.
- the arrangement of a turning device upstream of the folding device enables the same folding processes to be carried out even in the case of paper sheets in which the printing with the labeling head or parts list runs out of the printer with the pages turned.
- turning alone is not enough, but the sheet must still be inserted into the folding device by deflecting it with the printing side upwards.
- 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, which is 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 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 arrives in the channel 21, is gripped by the rollers 40 and is subsequently 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 kink 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 drawing head 48 is always on the cover sheet and is therefore visible even when folded.
- 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 cross 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 supplied by an electrostatic printer 76 contains information about the length of the paper sheet that has been output, 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 passes between in the direction of arrow B. 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Claims (4)
- Machine destinée à plier des feuilles de papier, dans laquelle la feuille de papier (9) peut être pliée grâce à des organes plieurs (5, 6, 10) se déplaçant dans des directions opposées ; une paire de cylindres de guidage (3) menés, qui serrent la feuille de papier et la transportent dans la direction d'avancement (B), est disposée en avant des organes plieurs (5, 6, 10) ; les organes plieurs comportent au moins deux bandes plieuses menées et sans fin (5, 6), dont chacun est enroulée autour de deux cylindres (12) dont les axes se trouvent dans le même plan ; et dans laquelle se trouve au moins une troisième bande plieuse menée sans fin (10), une fente de pliage (10) étant formée entre ces bandes plieuses (5, 6, 10), un dispositif de commande étant présent pour l'entraînement réversible des bandes plieuses (5, 6, 10), caractérisée en ce que sont présents au moins un capteur (4, 16), qui balaye le bord avant (17) de la feuille de papier, et un émetteur de signaux (75), qui sont raccordés à un dispositif de commande (35), ce dispositif de commande (35) contenant au moins une mémoire (50) destinée à mémoriser des programmes de pliage prédéterminés, l'émetteur de signaux (75) étant conçu pour donner en sortie un signal affecté à la longueur de la feuille de papier considérée et appelant de la mémoire (50) le programme de pliage correspondant ; qu'un moteur pas à pas (8), pouvant subir une inversion de sens de rotation, est affecté aux bandes plieuses (5, 6, 10) ; et qu'au-dessus des bandes plieuses (5, 6, 10) se trouve un organe de renvoi, qui renvoie les feuilles de papier pliées vers une plieuse transversale (26), la plieuse transversale (26) se trouvant spatialement au-dessus des organes de guidage (2′) de la feuille de papier.
- Machine selon la revendication 1, caractérisée en ce qu'on prévoit un premier capteur (4), disposé devant les bandes plieuses (5, 6, 10), et qui explore le bord avant (17) d'une feuille de papier amenée (9) ; que le premier capteur (4) introduit dans la mémoire (50), à partir de l'émetteur de signaux (75), le signal affecté à la longueur de la feuille et servant au programme de pliage ; et que, dans la fente de pliage (14), on prévoit un deuxième capteur (16), qui lit la position du bord avant (17) de la feuille de papier (9), capteur qui appelle et exécute le programme de pliage.
- Machine selon la revendication 1 ou 2, caractérisée en ce que l'émetteur de signaux (75), pour donner en sortie un signal qui appelle le programme de pliage correspondant à la longueur de la feuille de papier, est affecté à une imprimante (76) montée en amont.
- Machine selon les revendications 1 à 3, caractérisée en ce qu'en amont des organes plieurs (5, 6, 10), dans le même bâti de machine (1), est installé un dispositif (39) de renversement de feuille, comportant au moins une fente de renversement presque verticale (46) destinée à recevoir une feuille de papier, amenée avec son bord avant vers l'avant et évacuée par son bord arrière, et comportant des guidages de renvoi de feuille (51, 55, 57, 59, 63a) qui suivent le dispositif de renversement de feuille (39), guidages de renvoi qui renvoient la feuille de papier (9) - par rapport au dispositif d'amenée (C) qui introduit la feuille dans le dispositif de renversement (39) - dans les organes plieurs (5, 6, 10) selon une direction d'amenée (B) opposée.
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 |
---|---|---|---|
CH287388 | 1988-07-28 | ||
CH2873/88 | 1988-07-28 | ||
CH226589 | 1989-06-16 | ||
CH2265/89 | 1989-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0354176A1 EP0354176A1 (fr) | 1990-02-07 |
EP0354176B1 true EP0354176B1 (fr) | 1992-12-09 |
Family
ID=25689955
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)
Country | Link |
---|---|
EP (1) | EP0354176B1 (fr) |
DE (1) | DE58902953D1 (fr) |
Cited By (1)
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 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4239750C2 (de) * | 1991-11-28 | 1994-12-15 | Bay Otto | Vorrichtung zum Lochen von Papierbogen |
IT1257117B (it) * | 1992-09-30 | 1996-01-05 | Macchina per la piegatura di fogli di carta. | |
DE59300080D1 (de) * | 1993-02-18 | 1995-03-23 | Jensen Ag Burgdorf | Falteinrichtung zum automatischen Falten von Wäschestücken. |
US5364332A (en) * | 1993-07-01 | 1994-11-15 | Xerox Corporation | Soft nip folder |
DE19507862A1 (de) * | 1995-03-08 | 1996-09-12 | Roth & Weber Ohg | Faltmaschine |
EP0799786B1 (fr) * | 1996-03-14 | 1998-01-28 | 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 |
CN107720398B (zh) * | 2017-10-30 | 2023-09-19 | 长江大学 | 一种烧纸折纸机 |
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 |
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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1277931A (en) * | 1968-06-18 | 1972-06-14 | Funk & Co Inc | Apparatus for folding flexible sheets |
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 |
NL7204777A (fr) * | 1972-04-10 | 1973-10-12 | ||
DE2227582C3 (de) * | 1972-06-07 | 1979-11-15 | Meteor-Siegen Apparatebau Paul Schmeck Gmbh, 5900 Siegen | Vorrichtung zum Mehrfachfalten von Bogen aus Papier, Folien u.dgl |
DK158095C (da) * | 1983-06-06 | 1990-08-20 | Kannegiesser H Gmbh Co | Apparat til foldning af vasketoejsstykker |
DE3411742A1 (de) * | 1984-03-30 | 1985-10-03 | Meteor-Siegen Apparatebau Paul Schmeck Gmbh, 5900 Siegen | Faltmaschine zum falten von bogen |
FR2570360B1 (fr) * | 1984-09-18 | 1987-02-13 | Michel Giovannini | Machine pour le pliage des plans |
-
1989
- 1989-07-17 DE DE8989810540T patent/DE58902953D1/de not_active Expired - Fee Related
- 1989-07-17 EP EP89810540A patent/EP0354176B1/fr not_active Expired - Lifetime
Cited By (1)
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 |
Also Published As
Publication number | Publication date |
---|---|
DE58902953D1 (de) | 1993-01-21 |
EP0354176A1 (fr) | 1990-02-07 |
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