EP0005671B1 - Maschine zum Falten von Zeichnungsbögen auf ein bestimmtes Format - Google Patents

Maschine zum Falten von Zeichnungsbögen auf ein bestimmtes Format Download PDF

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Publication number
EP0005671B1
EP0005671B1 EP19790400306 EP79400306A EP0005671B1 EP 0005671 B1 EP0005671 B1 EP 0005671B1 EP 19790400306 EP19790400306 EP 19790400306 EP 79400306 A EP79400306 A EP 79400306A EP 0005671 B1 EP0005671 B1 EP 0005671B1
Authority
EP
European Patent Office
Prior art keywords
folding
band
strand
strip
folded
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
Application number
EP19790400306
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English (en)
French (fr)
Other versions
EP0005671A1 (de
Inventor
Michel Giovannini
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0005671A1 publication Critical patent/EP0005671A1/de
Application granted granted Critical
Publication of EP0005671B1 publication Critical patent/EP0005671B1/de
Expired 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
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • the present invention relates to a machine for folding the planes and more precisely to a machine for folding according to the so-called "folding folding wallet with single hinge said hereinafter folding portfolio, a plane or similar surface already folded in accordion.
  • the state of the art is illustrated in particular by document FR-A-2 120525 which sets out the problem to be solved.
  • the plan or similar surface is first folded in alternating folds so as to obtain a strip folded in accordion, the width of a fold being equal to one of the sides of the format, in general the short side. This operation can be carried out in a correct manner with the machine described with reference to FIG. 1 of the document FR-A-2120 525. It is then necessary to carry out a folding “wallet to fold the band folded over itself for the first time.
  • the machine described in the French patent above and illustrated in Figure 3 of this patent which is reproduced to illustrate the art known as Figure 1 of this patent, comprises a conveyor belt 1 which leads the strip folded in accordion between two crushing rollers 2 and 3, a table 4 following said conveyor belt and which has in its middle a free space 5, a folding blade 6 mounted above this table in front of the free space 5 and capable of move vertically to engage the strip through the free space 5 between the call rollers 7 and 8 rotating in opposite directions to form the fold and lead the folded strip to rollers 9 and 10 for deviating from the plane.
  • the downward movement of the blade 6 is controlled by the abutment of the front end of the strip folded in accordion against a stop 11 located at a distance 2L from the blade, L being the length of the side of the format to be produced, this stop controlling contacts under the action of the pushing of the strip.
  • the strip thus folded for the first time is received on a second table 12 similar to the first but whose stop 13 is only at a distance L from the blade 14, which ensures the second folding by engagement of the strip already folded for the first time. through a slot 15 between pinch rollers 16 and 17 cooperating with deflection rollers 18 and 19 which direct the plane thus folded in the portfolio on an evacuation conveyor belt 20.
  • the object of the present invention is to remedy these drawbacks and its subject is a machine for folding portfolio with a single hinge to a determined format of a strip having, in the direction of the length of this strip, a length greater than double of the length of the format by carrying out a first folding, started by a blade and guided by cylinders, at a distance from one end of the strip equal to twice the length L of the format and from a second folding, started by a second blade and guided by cylinders, in the middle of the length of the strip folded for the first time.
  • the machine comprises a positively driven continuous conveyor element comprising three strands which follow one another while being substantially perpendicular. res two by two, the two extreme strands being parallel and flowing in opposite directions and the strip to be folded is introduced into the machine with the surface to constitute the two outer surfaces of the portfolio situated below and at the rear of the strip for come into contact under the pressure of pressure elements with the first strand of the continuous conveyor, the control of the folding blades being subject to detection, by a detector situated upstream at a distance at least equal to twice the length of the format folding, from the rear edge of the strip, the double folding taking place in two substantially perpendicular directions, the strip brought into contact with the first strand and folded a first time by a blade whose path is substantially parallel to the second strand being moved in contact with this second strand by being applied against this strand by pressure elements then folded a second time by a second blade whose trajectory is st substantially parallel to the third strand to then be moved in contact with this third strand by being applied against this
  • the strip from its introduction to the first folding blade, always flows in the same direction, being pulled and not pushed. It is therefore possible to guide it positively, if necessary, between belts or pressing cylinders as close as possible to the point of formation of the fold.
  • the length of strip, the detection of which determines the fixing of the fold, is pulled and not pushed, which avoids all the disadvantages of the prior machine.
  • the double folding is carried out in two substantially perpendicular directions, the strip brought horizontally and folded a first time being moved vertically then folded a second time to then be moved substantially horizontally according to a direction opposite to that in which it is brought to the unfolded state.
  • This characteristic makes it possible to ensure the entire portfolio folding with the rear part of the strip corresponding to the folding format, that is to say in practice the cartridge, in guide contact with a positively driven continuous conveyor element.
  • This continuous conveyor element can be constituted by an endless belt or belts, guided on rollers or pulleys or by multiple rollers arranged in the same layout.
  • the folding blades are each carried by an oscillating frame which also carries a drive element which comes into clamping contact, with the interposition of the strip to be folded, with a second drive element so as to ensure the positive drive of said part of the strip in a direction ensuring its engagement between the elements for forming the fold in the direction of travel of the part carrying the cartridge.
  • Said oscillating drive element may consist of a roller or a belt or endless belts. It can be positively driven or be mounted free.
  • the machine according to the invention comprises a feed surface of which at least the part close to the line of action of the folding blade is constituted by a positive drive element of the strip to be folded with at at least one guide element holding said strip in abutment against the positive drive element, a folding blade movable in a direction substantially perpendicular to that of the supply surface to engage the fold of the band to be folded formed by this blade , in the above direction, between a positive drive element and a guide element holding the folded strip in abutment against the latter positive drive element, a second folding blade movable in a direction substantially parallel to that of the feed surface for engaging the fold of the strip formed by this blade, in the above direction, between a positive drive element and a guide element holding the folded strip in abutment against the latter el positive drive element and means for evacuating the folded strip in the portfolio thus obtained.
  • the supply surface is constituted by an inclined plane, preferably at 45 °, the strip drive element being constituted by a toothed belt.
  • the strip drive element being constituted by a toothed belt.
  • its upper surface is preferably provided with longitudinal ridges.
  • the machine in the embodiment illustrated in FIGS. 2 to 4 comprises a feed table 21 which could be constituted by an endless belt or a ply of parallel endless belts 3. Rollers 22 driven ensure the progression of the strip. Pressure elements, rollers or endless strip (not shown) could keep the strip 23 to be folded resting on the table, the strip 23 moving in the direction of the arrow F.
  • the main conveyor element in contact with which the surface of the cartridge is in contact during the entire folding is constituted by an endless band 24 guided on cylinders 25.
  • Said band comprises a strand 24a which extends the table 21, then, after a quarter of turn around the cylinder 25a, a substantially vertical strand 24b then, after a quarter turn around a cylinder 25b, a substantially horizontal strand 24c and finally after passing around a cylinder 25c a strand back towards the strand 24a.
  • the guide of the folded strip 23 in contact with the strip 24 and also the flattening of the folds are ensured, in the embodiment shown, by a cylinder 26 which supports it in line with the upper generatrix of the cylinder 25a, by a endless band 27, cooperating with the vertical strand 24a and which is guided by an upper cylinder 28 spaced from the cylinder 25a above to leave a wedge gap 30 between the strands 24b and 27b of the two pressure bands, but positioned in such a way so that its upper surface is lower than the upper surface of the cylinder 25a in order to allow the strip 23 to pass on the way out, by a cylinder 29 which supports the strand 27b against the strand 24b, by a cylinder 30 which elastically supports the strip 27 against the strip 24 in line with the cylinder 25b and a return cylinder 31 (the strip 27 is driven at the same speed as the strip 24 in the direction F ') and finally by an endless strip 32 which is guided on a cylinder 33 to the right of cylinder 2 5b to form a
  • the folding blades comprise a first blade 36 carried by a frame 37 mounted oscillating around an axis 38 and controlled so as to descend to push the strip to be folded 23 towards the endless strip 24 along a line slightly beyond the upper generator of cylinder 25a.
  • the frame 37 also carries a cylinder 39, which can be driven in the direction of the arrow F "', and which, at the end of the descent of the folding blade 36, comes to tighten the part 23' or tail of the strip to be folded against the endless strip 27 in line with the cylinder 28. It should be noted that the portion 23 ′ or tail of the strip is free and only supported in the event of excessive bending by an inclined plate 40.
  • the second folding blade ensuring the portfolio folding has the same elements designated by the same references with prime but its stroke is horizontal and it brings a transverse line of the already folded strip and the first fold of which descends freely being guided between vertical plates 41, in contact with the strip 24 in the vicinity of the generator lower of the cyli note 25b. At this moment the cylinder 39 'clamps the upper end of the folded strip engaged between the plates 41 against the strip 32 which rotates in the direction of the arrow F ".
  • the folded strip is therefore forced by driving its two parts located from on either side of the fold initiated by the blade 36 'in the corner space 34. If the tail has a length less than L, its free edge 42 is between the plates 41 but because of the guidance provided by these plates the fold 43 cannot open and its surface is reapplied against the part 23a of the strip to be folded during the engagement between the strip 32 and the cylinder 39 '. If the tail 23' has a length greater than L, it will found folded by the blade 36 'when the fold 43' is formed.
  • the detectors for the position of the rear end 44 of the strip can be of the mechanical, optical or other type.
  • a first detector 45 is placed at a distance 2L from the line of action of the blade 36 and its position is adjustable with precision as a function of the driving speed of the strip to be folded and the delay of the known means, not shown, controlling the oscillation of the frame 37 and of the blade 36.
  • the detector working at the passage of the rear end of a pulled folded strip, the precision is much higher since it cannot be influenced by a random buckling of that -this.
  • the second detector 46 is located at a distance L, measured along the path followed by the strip to be folded 23 along the table and the strip 24 of the line of action of the folding blade 36 '. Its position is also adjustable with precision and it can be corrected according to the results obtained. It is true that the adjustment of the folding format can also be carried out easily by adjusting the positions of the detectors 45 and 46.
  • a tray 47 which can be a transporter receives the folded plans in the portfolio.
  • the feed surface is constituted by a table 100 inclined at 45 ° onto which the strip 23 is brought manually or mechanically.
  • a toothed belt 101 driven in rotation at the same tangential speed as the endless strip 24 drives under the effect of its own weight the strip 23 towards the cylinders 26 and 25a with a view to carrying out the first folding as mentioned above.
  • the latter is provided with longitudinal ridges 102.
  • the flank clamp 103 serves to prevent the band 23 folded in accordion from opening too much.

Landscapes

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

Claims (4)

1. Maschine zum « Brieftaschen » - Falten mit einem einzigen Scharnier auf ein bestimmtes Format von eines Bogens (23) mit - je nach der Längsrichtung dieses Bogens - einer grösseren Länge als die doppelte Formatlänge durch Ausführung eines ersten Falzes, der durch ein Messer (36) eingeleitet und durch Zylinder geführt ist und zwar in einem Abstand zu einem Ende des Bogens, der dem doppelten Wert der Länge (L) des Formats gleich ist, sowie eines zweiten Falzes, der durch ein zweites Messer (36') und durch Zylinder geführt ist und zwar in der Mitte des zum ersten Mal gefalzten Bogens, dadurch gekennzeichnet, dass die Maschine ein kontinuierliches Förderelement (24) aufweist, das positiv angetrieben wird und drei aufeinanderfolgende Trume (24a, 24b, 24c) aufweist, die paarweise ungefähr senkrecht zueinander sind, wobei beide Endtrume parallel sind und in umgekehrter Richtung laufen und dass der zu falzende Bogen (23) in die Maschine mit der Fläche eingeführt wird, welche beide unter und hinter dem Bogen befindlichen Aussenflächen der Brieftasche bilden soll, um unter dem Druck von Druckelementen (26) mit dem ersten Trum (24a) des kontinuierlichen Förderers (24) in Berührung zu kommen, wobei die Steuerung der Falzmesser von der Erfassung der Hinterkante des Bogens abhängt und diese Erfassung durch einen Geber (45) ausgeführt wird, der sich aufwärts in einem Abstand befindet, der wenigstens zwei Mal so gross wie die Länge des Falzformats ist, wobei der doppelte Falz nach zwei ungefähr senkrechten Richtungen erfolgt, wobei der Bogen, der mit dem ersten Trum (24a) in Berührung kommt und ein erstes Mal durch ein Messer (36) gefalzt wurde, dessen Laufbahn ungefähr parallel zum zweiten Trum (24b) ist, in Berührung mit diesem zweiten Trum (24b) bewegt wird, gegen diesen Trum durch Druckelemente (27 bis 30) angedrückt und anschliessend ein zweites Mal durch ein zweites Messer (36') gefalzt wird, dessen Laufbahn ungefähr parallel zum dritten Trum (24c) verläuft, um anschliessend in Berührung mit diesem dritten Trum (24c) bewegt zu werden, wobei der Bogen gegen diesen dritten Trum durch Druckelemente (32 bis 35) angedrückt wird und der hintere Bereich des Bogens dem Falzformat entspricht, das während des ganzen Falzvorganges in führender Berührung mit dem ersten, dem zweiten und dem dritten Trum (24a, 24b, 24c) des kontinuierlichen Förderers (24) bleibt.
2. Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Falzmesser (36 bis 36") je durch ein Schwinggestell (37 bis 37') getragen werden, das auch ein Antriebselement (29) trägt, welches unter Zwischenlegen des zu falzenden Bogens in spannender Berührung mit einem zweiten Antriebselement (27 bis 32) kommt, um den positiven Antrieb des Bogenteils zu gewährleisten, der das betreffende Falzmesser in einer Richtung überschritten hat, die seine Einführung zwischen die Falzbildungselemente in der Laufrichtung des Bereichs gewährleistet, der das Schriftfeld trägt.
3. Maschine nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Zuführfläche (21) aus einer schrägen Ebene (100) besteht, wobei der Bogen (23) dem positiven Antriebselement (24) zugeführt wird, dessen Anfangstrum (24a) vor dem ersten Falzmesser (36) die genannte Zuführfläche mit einem Riemen (101) verlängert, der an der Basis dieser schrägen Ebene mit der gleichen Geschwindigkeit wie das positive Antriebselement (24) läuft.
4. Maschine nach Anspruch 3, dadurch gekennzeichnet, dass der Riemen (101) ein Zahnriemen ist, wobei die obere Fläche der schrägen Ebene (100) mit länglichen Riefen (102) versehen ist.
EP19790400306 1978-05-19 1979-05-16 Maschine zum Falten von Zeichnungsbögen auf ein bestimmtes Format Expired EP0005671B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7814866 1978-05-19
FR7814866A FR2426004A1 (fr) 1978-05-19 1978-05-19 Machine pour plier les plans au format

Publications (2)

Publication Number Publication Date
EP0005671A1 EP0005671A1 (de) 1979-11-28
EP0005671B1 true EP0005671B1 (de) 1985-01-09

Family

ID=9208452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790400306 Expired EP0005671B1 (de) 1978-05-19 1979-05-16 Maschine zum Falten von Zeichnungsbögen auf ein bestimmtes Format

Country Status (4)

Country Link
EP (1) EP0005671B1 (de)
DE (1) DE2967348D1 (de)
ES (1) ES480516A1 (de)
FR (1) FR2426004A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028889A1 (de) * 1990-09-12 1992-03-19 Winkler Duennebier Kg Masch Verfahren und vorrichtung zum falten von hygieneprodukten

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497782B1 (fr) * 1981-01-09 1985-08-02 Mabotex Machine automatique de coupe, de pliage et de conditionnement des feuilles de materiaux souples, debitees en bandes enroulees
AT374765B (de) * 1982-02-18 1984-05-25 Stelzer Walter Vorrichtung zum verpackungsgerechten zusammenlegen von tuechern od. dgl.
FR2564812A1 (fr) * 1984-05-23 1985-11-29 Gofetto Flavio Machine a plier
AU623692B2 (en) * 1988-09-23 1992-05-21 Prelect Australia Pty. Ltd. Apparatus for folding sheets
WO1990003326A1 (en) * 1988-09-23 1990-04-05 Prelect Australia Pty. Ltd. Apparatus for folding sheets
FR2644763B1 (fr) * 1989-03-24 1991-07-05 Jensen Ag Burgdorf Unite de pliage pour produit textile sensiblement plat et souple
CN104444554B (zh) * 2014-09-29 2017-09-01 武汉恒飞电气科技有限公司 自动衣料折叠机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1519733A (en) * 1921-09-09 1924-12-16 Leo M Kohn Folding machine
GB1277931A (en) * 1968-06-18 1972-06-14 Funk & Co Inc Apparatus for folding flexible sheets
FR2120525A5 (de) * 1971-01-07 1972-08-18 Giovannini Michel
US3773315A (en) * 1971-06-04 1973-11-20 Exxon Research Engineering Co Sheet and bag folder
US3905593A (en) * 1973-05-07 1975-09-16 Super Laundry Mach Co Flatwork folding system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028889A1 (de) * 1990-09-12 1992-03-19 Winkler Duennebier Kg Masch Verfahren und vorrichtung zum falten von hygieneprodukten

Also Published As

Publication number Publication date
FR2426004B1 (de) 1981-12-18
ES480516A1 (es) 1979-11-16
EP0005671A1 (de) 1979-11-28
FR2426004A1 (fr) 1979-12-14
DE2967348D1 (en) 1985-02-21

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