EP0080519A1 - Procédé et machine pour plier des affiches - Google Patents

Procédé et machine pour plier des affiches Download PDF

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Publication number
EP0080519A1
EP0080519A1 EP81109910A EP81109910A EP0080519A1 EP 0080519 A1 EP0080519 A1 EP 0080519A1 EP 81109910 A EP81109910 A EP 81109910A EP 81109910 A EP81109910 A EP 81109910A EP 0080519 A1 EP0080519 A1 EP 0080519A1
Authority
EP
European Patent Office
Prior art keywords
tube
rollers
poster
posters
folding machine
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
EP81109910A
Other languages
German (de)
English (en)
Other versions
EP0080519B1 (fr
Inventor
Fritz Wössner
Ursel Wössner
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 EP81109910A priority Critical patent/EP0080519B1/fr
Priority to DE8181109910T priority patent/DE3175074D1/de
Priority to ES517180A priority patent/ES8400349A1/es
Publication of EP0080519A1 publication Critical patent/EP0080519A1/fr
Application granted granted Critical
Publication of EP0080519B1 publication Critical patent/EP0080519B1/fr
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • 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
    • B65H29/006—Winding articles into rolls
    • B65H29/008—Winding single articles into single rolls
    • 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

Definitions

  • the invention relates to a method for folding posters, with which posters of different lengths can be folded several times, and a folding machine for carrying it out.
  • Posters such as those stuck to poster pillars and billboards, often have large dimensions, which is why they are folded to a small size before being glued on. Folding the posters will make it much easier to stick them on. There is a requirement to fold the posters to a uniform size - for example, to a width of 14 cm. To achieve this, the posters, which can have lengths of 2 to 3 m, have to be folded several times. A machine with which such multiple folding could be carried out is not yet known.
  • the invention is based on the object of specifying a method for folding posters, with which even large posters can be narrowly folded up by a large number of folds.
  • the solution to this problem is a method of get the type mentioned in that the posters to be folded are first rolled up to a poster roll with a predetermined diameter; that the reeling process is ended so that the end of the poster on the outside of the poster takes up a certain adjustable position; and that the poster roll is then flattened, creating the fold.
  • the width of the pressed poster is also determined with the diameter of the poster roll.
  • the poster roll is pressed together with high pressure, creating sharp-edged folds.
  • the poster roll is aligned according to the invention before the flattening so that the outer end of the poster occupies a predetermined position.
  • the invention provides that the poster roll has a diameter of approximately 85 mm, the posters having an original length of over 2.80 m.
  • the invention provides a folding machine, which is characterized in that the folding machine has a retractor with an inner fixed tube and a plurality of drivable rollers surrounding the tube; that the rollers are arranged a short distance from the tube; and that for the paper feed a narrow area of the tube is not covered by rollers as an input area.
  • the posters to be folded are wound up from the rollers arranged at a certain distance from the tube to form a poster roller.
  • the posters are inserted between the rollers and the tube in the narrow area that is not covered by rollers.
  • the rotated rollers then guide the inserted poster around the tube.
  • the distance between the tube and the outer rollers can be about 1 cm, for example.
  • the arrangement of the rollers is preferably such that a plurality of drive axles surrounding the tube are provided, on each of which a row of rollers is fastened next to one another.
  • covers can be provided next to or between the rollers.
  • the preferred embodiment of the invention provides that the rollers of two adjacent drive axles are arranged so that they overlap laterally. As a result of this measure, the rollers interlock, so that the inserted posters have no possibility of getting out between the rollers.
  • rocker arms are rotatably mounted in the input area and distributed over the length of the tube, each of which presses the poster surrounding the tube resiliently in the direction of the tube and thereby slightly reduces the diameter of the poster roll at this point. This way you avoid that the poster roll braced against the outer driven rolls. Without the rocker arms, such bracing would occur in particular with poster rolls that have a large number of windings, for example 20 windings. Since the rocker arms are flexible or resilient, they are pushed outwards by the poster roller as the number of windings increases.
  • rocker arms are fastened on an axis lying outside their center of gravity and press on the poster roll due to their own weight.
  • the rocker arms can be brought into a position in which they do not influence the diameter of the poster roll. This measure results in a slight tensioning of small posters with respect to the rollers, which means that the poster that is wound up also comes to a standstill when the rollers are braked. If the poster roll would turn even further when the outer rolls were braked, this would have the disadvantage that the end of the poster would not assume a defined position.
  • the invention further provides that the tube is firmly connected at one end to the folding machine; that the other end is self-supporting; that a pull-off device is arranged at the cantilevered end, which pulls the poster roll axially from the tube.
  • the tube By the one-sided self-supporting design of the tube, it is possible to pull the rolled-up posters unhindered from the tube.
  • the tube could also be connected to the folding machine at both ends, one of these two connections would then have to be removed before the poster roll is removed. Such a solution would be considerably more complex than the solution according to the invention.
  • the take-off device has a pressure roller arranged in the tube and a transport roller located outside the tube; that the axes of these two rollers are perpendicular to the central axis of the tube; that the pressure roller can be pressed against the transport roller through a slot in the tube.
  • the transport roller can rotate continuously, the pressure roller for the pull-off process being pressed out of the interior of the tube in the direction of the transport roller.
  • the wound poster located between the transport roller and the pressure roller is pressed against the transport roller, whereby it is pulled off the tube in accordance with the direction of rotation of the transport roller.
  • the pressure roller can be actuated via a linkage running in the tube.
  • the linkage preferably protrudes from the other, non-self-supporting end of the tube, where it is actuated by a motor, for example by an eccentric.
  • the folding machine according to the invention is preferably designed so that a folding device is arranged in the extension of the free end of the tube has two conveyor belts converging at an acute angle, which flatten the respective removed poster roll; that there are pressure rollers behind the conveyor belts, which firmly press a continuous, compressed poster.
  • the poster rolls pulled off the tube go directly between the two conveyor belts. The entire folding process is therefore fully automated.
  • the pressure rollers ensure that sharp-edged folds are created.
  • Particularly wide poster sheets often have to be folded vertically in the middle after they have been folded several times in the longitudinal direction.
  • a folding knife is arranged behind the pressure rollers, which moves on a circular path by approximately 90 ° from an upper position above the folded poster to a horizontal position and thereby the posters coming from the pressure rollers in their Grabs the middle and pushes it through an approximately V-shaped funnel in the side view, so that an additional central fold is created.
  • This center fold runs perpendicular to the folds that were generated by the pressure rollers.
  • a further development of the invention which favors the rolling-up process provides that there is a roller in front of the input area which smoothes the posters before the rolling-up process; that the roller has circumferential recesses, engage in the guide rods of a guide device; and that under the roller there are counter pressure rollers which press the posters against the rotating roller at the bottom.
  • the guide device serves to securely place the posters in the gap between the inside Tube and outer rollers.
  • the guide rods of the guide device are arranged at a short distance from one another over the entire width of the input area. The posters are pushed into the reel-up by pressing on the rotating roller.
  • a further development of the invention provides that the roller can be brought up into a vertical position together with the guide device and with some of the rollers. This measure makes the space between the tube and the outer rollers accessible in the event of a fault. Such a malfunction can occur when badly damaged posters are fed to the reel-up.
  • the retractor 1 shown in Fig. 1 consists essentially of an inner tube 2 and a plurality of rollers 3 which surround the tube 2 at a short distance.
  • the rollers 3 are fastened to a plurality of drive axles 4 to 11 (FIG. 2) which are driven via associated gear wheels 12.
  • the gear wheels 12 engage in a pinion 13 which is firmly connected to a further gear wheel 14.
  • the gear 14 is driven by a toothed belt, not shown here.
  • rollers 3 are arranged on each of their drive axles 4 to 11 with a small distance from one another, so that gaps arise between the rollers located on a drive axle.
  • the rollers attached to an adjacent drive axle each engage in these gaps.
  • the tube 2 is so closely surrounded by rollers 3 that a poster inserted between rollers 3 and tube 2 cannot escape to the outside between the rollers.
  • the tube 2 is firmly connected at one end 15 to the folding machine. In the illustrated embodiment, this connection is made via two supports 16 which are screwed to the frame 17 of the folding machine. The supports 16 completely enclose the tube 2. The other end 18 of the tube 2 is self-supporting. As a result, a poster 19 (FIG. 2) wound on the inside of the rollers 3 can be pulled off the tube 2 at the self-supporting end 18.
  • a take-off device 20 which essentially consists of a transport roller 21 and a pressure roller 22.
  • a poster wrapped between the transport roller 21 and the pressure roller 22 around the tube 2 is now pulled off from the tube 2 in that the pressure roller 22 in the direction through a slot 23 provided in the tube 2 Transport roller 21 is pressed.
  • the pressure roller 22 is actuated via a linkage 24 which is led out of the tube 2 at the other end 15. If the linkage 24 is pressed against a spring 25 in the direction of arrow a, the pressure roller 22 assumes the position shown here. The pressure roller 22 has this position during the reeling process.
  • the linkage can be moved in the opposite direction of arrow a by the spring 25, whereby the pressure roller 22 is pressed through the slot 23 in the direction of the transport roller 21. Since the transport roller 21 rotates continuously in the specified direction, the poster roller located between the transport roller 21 and the pressure roller 22 is pulled off the tube 2 in the direction of the arrow b in this way.
  • the poster roll then passes between two superposed conveyor belts 26, 27 which are part of a folding device which is described in more detail with reference to FIG. 4.
  • F ig. 2 shows a simplified side view of the retractor 1.
  • the rollers 3 are arranged on several adjacent drive axles 4 to 11.
  • the tube 2 is completely surrounded by the rollers 3, except for a narrow area, which can be referred to as the input area 28.
  • the posters 19 are inserted between tube 2 and rollers 3. By rotating the rollers 3 in the specified direction, the poster 19 winds up to form a poster roller 29.
  • the posters 19 are each passed over a deflection roller 31 under the roller 30.
  • the roller 30 rotates continuously in the specified direction.
  • height-adjustable counter-pressure rollers 32 are arranged which, in their upper position, press the poster 19 against the roller 30, so that the poster 19 is moved in the indicated direction c.
  • the counter pressure rollers 32 are distributed over the length of the roller 30.
  • the folding machine according to the invention has a guide device 33 so that a perfect paper feed is ensured.
  • This essentially consists of guide rods 34 which engage in the recesses 35 provided on the roller 30.
  • the design of the roller 30 with its recesses 35 is illustrated in FIG. 3.
  • the guide rods 34 are designed such that their lower edge 36 is not arranged lower than the lowest point of the roller 30. So that the engagement of a guide rod 34 in the associated recess 35 is clear, the roller 30 in Fig. 2 is at the appropriate point shown broken up.
  • a rocker arm 37 which presses the poster roller 29 on one side in the direction of tube 2.
  • the rocker arm 37 is rotatably mounted on an axis 38 attached outside of its center of gravity, so that it passes through presses its own weight and the resulting torque against the poster roller 29.
  • a lever not shown here, the rocker arm 37 can be brought into a position in which it no longer influences the diameter of the poster roller 29.
  • the paper feed is preferably controlled via light barriers and stops, not shown here.
  • a light barrier can be arranged in the specified area d, which detects the presence of a poster 19.
  • a second light barrier can be provided in the area of the tube 2, which determines whether a poster roll 29 is in the reeling device.
  • the paper feed can now be controlled via a control so that paper feed into the reel-up device is prevented when a poster is already in the reel-up device.
  • the end of the reeling process can be controlled by means of a photocell arranged in area d.
  • the photocell recognizes the end of the poster of the poster inserted into the reel-up device and, after an adjustable time delay, causes the reel-up process to be stopped. This measure ensures that the poster end of the fully rolled up poster roll 29 is always in the same place at the end of the rolling up process.
  • rollers 3 In order to enable the rollers 3 to be braked as suddenly as possible, it is advantageous if they consist of a material with the lowest possible mass. For this reason, the rollers 3 are preferably made of plastic. The sudden braking of the rollers 3 is obtained in that the drive shaft acting on the toothed belt is first uncoupled from the drive motor and braked immediately thereafter.
  • the folding device 40 is shown.
  • the poster roller 29 is pressed flat together via two conveyor belts 26, 2 ' 7 tapering at an acute angle and passed under pressure between two pressure rollers 41, 42.
  • the high pressure that the two pressure rollers 41, 42 exert on the pre-folded poster creates sharp-edged folds.
  • a movable folding knife 43 is arranged behind the pressure rollers 41, 42. This folding knife 43 serves to fold the narrowly folded posters again in the middle. This center folding is necessary for posters with a large width.
  • the poster passed between the pressure rollers 41 and 42 is passed under the vertical folding knife 43 until half of the poster has passed the folding knife in the dashed position. While the poster is being transported continuously, the folding knife 43 moves downward in accordance with the direction of the arrow indicated. As a result, the poster is pressed into the V-shaped funnel 44 and passed between two folding rollers 45. The folding knife 43 moves with the speed like the center of the poster.
  • the bar 46, on which the folding knife 43 is fastened on the outside, moves in the direction of the arrow indicated by one increasing angular velocity. The required decreasing angular velocity is achieved by a control cam, not shown here.
  • Conveyor belts 48, 49 are provided, between which posters of smaller dimensions are transported to the exit, since these smaller posters do not have to be folded in the middle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP81109910A 1981-11-26 1981-11-26 Procédé et machine pour plier des affiches Expired EP0080519B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP81109910A EP0080519B1 (fr) 1981-11-26 1981-11-26 Procédé et machine pour plier des affiches
DE8181109910T DE3175074D1 (en) 1981-11-26 1981-11-26 Method and machine for folding posters
ES517180A ES8400349A1 (es) 1981-11-26 1982-11-06 Maquina para el plegado de carteles.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81109910A EP0080519B1 (fr) 1981-11-26 1981-11-26 Procédé et machine pour plier des affiches

Publications (2)

Publication Number Publication Date
EP0080519A1 true EP0080519A1 (fr) 1983-06-08
EP0080519B1 EP0080519B1 (fr) 1986-08-06

Family

ID=8188036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109910A Expired EP0080519B1 (fr) 1981-11-26 1981-11-26 Procédé et machine pour plier des affiches

Country Status (3)

Country Link
EP (1) EP0080519B1 (fr)
DE (1) DE3175074D1 (fr)
ES (1) ES8400349A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479640A (en) * 1983-07-22 1984-10-30 Smith Carol E Flat piece folding apparatus with variable speed, and method
EP0363917A2 (fr) * 1988-10-14 1990-04-18 Leica AG Machine d'enroulement de papier, textile ou matériel synthétique
GB2315477A (en) * 1996-07-23 1998-02-04 Fillmatic Polsterindustrie Mas Packaging of compressed mattresses

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE276592C (fr) * 1911-03-20
GB862296A (en) * 1958-04-02 1961-03-08 Strachan & Henshaw Ltd Improvements in or relating to apparatus for folding paper or like webs
DE1295304B (de) * 1963-07-29 1969-05-14 Lee Kennth Philip Aufrollvorrichtung zum Aufwickeln von Bahnmaterial ohne Wickeltraeger
FR2022463A1 (fr) * 1968-11-02 1970-07-31 Sala Granel Jose
US3671033A (en) * 1970-11-23 1972-06-20 Coast Machinery Inc Machine and method for folding plastic bags and the like
US3711085A (en) * 1970-08-28 1973-01-16 E Bunch Folder for business forms
FR2412485A2 (fr) * 1977-12-26 1979-07-20 Duflot Rene Machine a plier des nappes de tissu, telles que des draps
EP0007442A1 (fr) * 1978-06-28 1980-02-06 Union Carbide Corporation Machine pour plier des sacs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE276592C (fr) * 1911-03-20
GB862296A (en) * 1958-04-02 1961-03-08 Strachan & Henshaw Ltd Improvements in or relating to apparatus for folding paper or like webs
DE1295304B (de) * 1963-07-29 1969-05-14 Lee Kennth Philip Aufrollvorrichtung zum Aufwickeln von Bahnmaterial ohne Wickeltraeger
FR2022463A1 (fr) * 1968-11-02 1970-07-31 Sala Granel Jose
US3711085A (en) * 1970-08-28 1973-01-16 E Bunch Folder for business forms
US3671033A (en) * 1970-11-23 1972-06-20 Coast Machinery Inc Machine and method for folding plastic bags and the like
FR2412485A2 (fr) * 1977-12-26 1979-07-20 Duflot Rene Machine a plier des nappes de tissu, telles que des draps
EP0007442A1 (fr) * 1978-06-28 1980-02-06 Union Carbide Corporation Machine pour plier des sacs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479640A (en) * 1983-07-22 1984-10-30 Smith Carol E Flat piece folding apparatus with variable speed, and method
EP0363917A2 (fr) * 1988-10-14 1990-04-18 Leica AG Machine d'enroulement de papier, textile ou matériel synthétique
EP0363917A3 (en) * 1988-10-14 1990-08-22 Wild Leitz Ag Winding device for paper, textile or synthetic webs
GB2315477A (en) * 1996-07-23 1998-02-04 Fillmatic Polsterindustrie Mas Packaging of compressed mattresses
GB2315477B (en) * 1996-07-23 1998-06-24 Fillmatic Polsterindustrie Mas Device for the packaging of mattresses

Also Published As

Publication number Publication date
ES517180A0 (es) 1983-11-01
ES8400349A1 (es) 1983-11-01
EP0080519B1 (fr) 1986-08-06
DE3175074D1 (en) 1986-09-11

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