EP0694493B1 - Dispositif de pliage - Google Patents

Dispositif de pliage Download PDF

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Publication number
EP0694493B1
EP0694493B1 EP95101525A EP95101525A EP0694493B1 EP 0694493 B1 EP0694493 B1 EP 0694493B1 EP 95101525 A EP95101525 A EP 95101525A EP 95101525 A EP95101525 A EP 95101525A EP 0694493 B1 EP0694493 B1 EP 0694493B1
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EP
European Patent Office
Prior art keywords
shafts
folding
folding knives
drive
run
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95101525A
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German (de)
English (en)
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EP0694493B2 (fr
EP0694493A1 (fr
Inventor
Hermann Schäfer
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Individual
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Individual
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    • 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
    • B65H45/20—Zig-zag folders

Definitions

  • the invention relates to a folding device according to the preamble of claim 1.
  • GB-A-494 414 Another folding device is shown in GB-A-494 414. It uses folding plates in conjunction with horizontal guide plates to pass flat material such as paper, cardboard and the like. Like. To fold harmonically by means of cam-controlled rods or fingers.
  • folding knives which are guided in the backdrop and are moved vertically relative to one another by means of cam disks and pressed on by means of a slide arrangement. To change the fold height, the folding knives must be adjusted by hand on a mounting rail after loosening the fastening or adjusting screws. This is very time consuming and can lead to inaccuracies in the parallelism of the folds. It is also necessary to shut down the folding machine.
  • the invention provides according to claim 1 that the shafts with their drives are designed to be vertically displaceable relative to one another and are synchronously coupled.
  • the folds can be adjusted quickly and easily without tools or other aids.
  • the fold height can be readjusted at any time during folding, so that it is no longer necessary to switch off the folding device.
  • the synchronous coupling of the shafts guarantees an exact parallelism of the folds regardless of the fold height.
  • the drives are electronically coupled motors. This ensures extraordinarily good synchronism of the shafts and thus the movement of the folding knives, which is very important for an exact fold height. In addition, the operational reliability is very high.
  • the drives of the shafts have T-gear, which have a common motor.
  • the arrangement of the folding machine can be carried out extremely space-saving.
  • the use of a common motor advantageously reduces the outlay on circuitry, which contributes to the inexpensive manufacture of the folding device.
  • the T-transmission of the shafts are coupled.
  • the use of a splined shaft, as provided for in claim 4, is mechanically simple and inexpensive, while a coupling according to claim 5 ensures high operational reliability with little maintenance.
  • the coupling of the T-gear of the shafts by toothed belts or chains with suitable gears according to claim 6 is very robust and low-wear.
  • Another advantageous coupling variant emerges from claim 7, according to which the drives of the shafts have cardan shafts with their own gears, which are driven by at least one motor.
  • the drives and the shafts can be displaced relative to one another by means of a controllable drive, so that the folds are adjusted in height during operation and, if appropriate, automatically can.
  • the handling of the folding device is considerably simplified. Operating errors are effectively avoided.
  • the use of a lifting spindle drive according to claim 9 is simple and economically favorable.
  • independent claim 10 is also advantageous, according to which the drives and the shafts can be displaced relative to one another by means of a cam control, for example an eccentric drive.
  • At least one shaft with a drive is mounted in a linear slide of a vertical linear guide.
  • the fold height can be adjusted quickly and precisely by moving the upper and / or lower shaft.
  • the use of a column frame or a rail guide, as provided for in claim 12, provides safe and precise storage, which is also very reliable and robust.
  • each folding knife is assigned at least two cam disks, which results in a considerably smoother running and conventional noise reduction compared to conventional folding machines with only one cam disk.
  • the folding knives are each rotatable on two linear slides coupled to a cam disk in a vertical linear guide, e.g. a pillar frame or a rail guide. In this way, the folding knives move exactly parallel to one another, so that a uniform fold height is achieved across the entire width of the fold.
  • the infeed table and an upper mold plate or an upper table can be adjusted vertically in height, for example in synchronism with the folding knives by means of an adjustable lifting spindle drive or a lever arrangement.
  • the material to be folded is always at the height of the folding knife, which has a positive effect on the uniformity of the folds.
  • a measuring device can be moved behind the sliding shoes over the entire working width, so that the current fold height is constantly monitored and displayed by means of an electronic display. Deviations from target values are recognized immediately and can be corrected during production.
  • Display devices for the continuous display of the height adjustment of the folding knife, the infeed table and the upper mold plate or the upper table increase the ease of use and the operational safety.
  • the folding device 10 shown in FIGS. 1 and 2 has in a frame 11 two folding knives 20, 21 which can be moved vertically by means of cams 40, 41, an inlet table 60 which is height-adjustable depending on the folding knives 20, 21 and a counter-pressure path 80 as an outlet for folded Material M.
  • a control panel 90 contains all important control displays and controls such as Switches, controllers and display fields for speed regulation or adjustment of the pleat height. It is fastened movably on the frame 11 and can preferably be pivoted through 180 °, so that the display fields can be read from all positions on the folding device. Switching and control elements (not shown) for electrical and pneumatic control are separately integrated in the machine cladding (not shown) and are also easily accessible.
  • the cam disks 40, 41 have cam grooves 42, 43 (FIG. 3) and are each fixedly mounted on the ends of a lower and an upper main shaft 30, 31. These are rotatably supported in bearings 32, 33, the bearings 32 of the upper main shaft 30 in side parts 14 of the frame 11 and the bearings 33 of the lower main shaft 31 being fastened to linear carriages 37 of a vertical column frame 38 (FIG. 4).
  • the main shafts 30, 31 are connected to T gears 53, 54, the upper of which is screwed to a side part 14 and the lower to the linear slide 37.
  • Both T-gear 53, 54 are preferably coupled via a rack 55, so that only one electric motor 52 is necessary for the drive, which is connected to the lower T-gear 54, for example. In this way, an exactly synchronous rotational movement of the shafts 30, 31 is ensured with simple and low means.
  • the use of T gears 53, 54 and only one electric motor 52 also allows an extremely space-saving construction of the folding device 10.
  • the coupling of the T gears 53, 54 can also take place via a Schmitz coupling or with the aid of toothed belts or chains.
  • the folding knives 20, 21 are each screwed to a cutter bar 22, 23 and held in bearings 26 between two upper linear slides 24 or two lower linear slides 25.
  • the upper linear slides 24 slide on vertical column frames 27 which are arranged in the side parts 14, while the lower linear slides 25 sit on vertical column frames 28 which are arranged together with the lower main shaft 31 in the linear slide 37 (FIG. 4).
  • the linear carriages 24, 25 In order to transmit the rotary movement of the shafts 30, 31 or the cam disks 40, 41 into a uniform, vertical folding movement of the folding knives 20, 21 along the column frames 27, 28, the linear carriages 24, 25 have sliding cams 29 which engage in the cam grooves 42 , 43 of the cams 40, 41 engage. The circular movement of the curved grooves 42, 43 is thereby transmitted to the linear slide 24, 25; the folding knives 20, 21 are moved uniformly vertically against each other.
  • the distance between the two main shafts 30, 31 and thus the fold height H of the folding knives 20, 21 are changed. Since the drive 51 of the lower main shaft 31 is also fastened to the linear slide 37, the folding height adjustment can also be adjusted during operation.
  • the toothed rack 55 arranged between the T gears 53, 54 ensures the power transmission and a corresponding length compensation.
  • the set fold height H is determined using a length measuring system (not shown) which registers the distance between the main shafts 30, 31 and displays them on the control panel 90.
  • the knife bars 22, 23 additionally have rocker arms 45, as shown in FIG. 6. These are preferably screwed on the outside and in the middle onto the cutter bars 22, 23.
  • Tension springs 47 act on the free ends of the rocker arms 45, which are each fastened together with a pivotably mounted lever arm 48 to the side parts 14, the linear slide 37 and in the middle of the folding knives 20, 21, for example on bearing blocks 18.
  • the pivotable lever arms 48 have rollers or ball bearings 49 at their free ends.
  • the rocker arms 45 pull the rocker arms 45 against the rollers or ball bearings 49 of the lever arms 48 so that they rest on the eccentric disks 44.
  • the linear slides 24, 25 of the folding knives 20, 21 are together with the linear slides 37 of the main shafts 30, 31 guided on a common column frame 38 (see also Fig. 8a, Fig. 8b).
  • the T gear 54 fastened to the linear slide 37 of the lower main shaft 31 is connected to a lifting spindle drive 56 which moves the linear slide 37 along the column frame 38.
  • the fold height H can thus be set automatically.
  • the table 60 In order to idealize the material inlet via the inlet table 60, this can be moved in height depending on the height setting of the folding knives 20, 21, so that the material M to be folded always runs in the center of the fold height H.
  • the table 60 like the linear slides 24, 25, 37, is guided in a vertical column frame (not shown) and moved by a lever arrangement 61 coupled to the linear slides 37.
  • the lever transmission ratio is preferably 2: 1, so that at a maximum fold height H of e.g. 50 mm the infeed table is raised or lowered by up to 25 mm.
  • Fork joints arranged on both sides are extremely advantageous for horizontal table movement.
  • a tension control of the incoming material M takes place, for example, by a light S-wrap of a sprung dancer roller 62.
  • the preload of the dancer 63 is known in the known manner e.g. adjustable with springs. At high acceleration, the train is taken up by the dancer 63 and then by the roller 62.
  • the upper format is limited by an upper table 65 designed as a shaped plate, which is loaded by at least two air pressure cylinders 66 and is held in a column frame (not shown) depending on the fold height H.
  • the movement of the linear slide 37 and thus the lever arrangement 61 can be transferred in a simple manner to the movement of the upper table 65, for example by attach the spindles 67 attached to the lever assembly 61.
  • the parallelism of the upper table 65 can be adjusted by means of a fine adjustment, the height set on both sides being continuously displayed on the control panel 90.
  • the counter-pressure path 80 has at least four air pressure cylinders 82, which load two sliding shoes 84 and thus the material M that is running out. As with the pressure cylinders 66 of the upper table 65, the pressure is regulated by means of pressure reducers.
  • independently controllable (not shown) heaters are integrated.
  • the control range is preferably between 20 ° C and 200 ° C.
  • Good thermal contact between the sensors and the heating plates is achieved by filling the screw holes with thermal oil.
  • the heating can be switched on by means of a timer before the start of production.
  • a light barrier can determine whether material M is in the folding device 10, so that a high level of operational safety is ensured.
  • the actual pleat height H is constantly monitored with the aid of a measuring unit or device 86 (not shown in detail). This is located behind the slide shoes 84 and can be moved over the entire working width A (FIG. 2). Any inaccuracies in the fold height H that occur are recognized immediately and can be corrected during operation by precise readjustment of the linear slides 24, 25 or 37 via the lifting spindle drive 56.
  • the folds carried out are counted via an inductive tap on the knife shafts 30, 31 and registered by a counter. Another counter determines the elements manufactured per unit of time. All measured information is displayed on the control panel 90.
  • both main shafts 30, 31 with the drives 50, 51 can be mounted in linear carriages 24, 25, so that the pleat height H can be adjusted by moving both shafts 30, 31, which can be easily controlled by means of a measuring system (not shown) and limit switch.
  • the material inlet and outlet can be provided with a two or more lane guide.
  • a spray device can easily be attached in the area of the material inlet.
  • the length of a marking can be precisely determined, for example, using an adjustable timer.
  • a folding device 10 preferably has two motor-driven folding knives 20, 21, which can be moved vertically relative to one another by means of cams 40, 41 mounted on shafts 30, 31, and an infeed table which can be adjusted vertically in height in synchronism with the folding knives 20, 21 60 for material to be folded M and a counterpressure section 80 with at least one pressure cylinder 82 per slide shoe or pressure plate 84.
  • the shafts 30, 31 are designed with their drives 50, 51 to be vertically displaceable relative to one another and are synchronously coupled, for example by two electronically coupled motors or by coupled T-gears 53, 54 with a common motor 52.
  • At least one shaft 32 is with its drive 52 mounted in a linear slide 37 of a vertical linear guide 38 and displaceable by means of a controllable drive 56.
  • the folding knives 20, 21 are rotatably mounted on linear carriages 24, 25 which run in vertical linear guides 27, 28 and are connected to the cams.
  • At least two eccentric disks 44 are arranged on the shafts 30, 31 and load rocker arms 45 connected to the folding knives 20, 21 in synchronism with the cam disks 40, 41.
  • a measuring device 86 behind the sliding shoes 84 can be moved over the entire working width A.
  • Display devices 90 serve for the continuous display of the height adjustment of the folding knives, the infeed table 60 and the upper molding plate or the upper table 65.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Seal Device For Vehicle (AREA)
  • Air Bags (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (20)

  1. Dispositif de pliage (10) avec deux couteaux de pliage (20, 21) entraînés par moteur, qui peuvent être déplacés verticalement et relativement l'un vers l'autre à l'aide de disques à came (40, 41) logés sur des arbres (30, 31), avec une table d'arrivée (60) pour la matière à plier (M), et avec une piste de contre-pression (80), caractérisé par le fait que les arbres (30, 31), avec leurs dispositifs d'entraînement (50, 51), peuvent être déplacés verticalement l'un par rapport à l'autre et sont couplés synchroniquement.
  2. Dispositif de pliage selon la revendication 1, caractérisé par le fait que les dispositifs d'entraînement (50, 51) sont des moteurs couplés électroniquement.
  3. Dispositif de pliage selon la revendication 1, caractérisé par le fait que les dispositifs d'entraînement (50, 51) des arbres (30, 31) ont des transmissions en T (53, 54) possédant un moteur commun (52).
  4. Dispositif de pliage selon la revendication 3, caractérisé par le fait que les transmissions en T (53, 54) des arbres (30, 31) sont couplées par un arbre cannelé (55) ou une rainure à clavette.
  5. Dispositif de pliage selon la revendication 3, caractérisé par le fait que les transmissions en T (53, 54) des arbres (30, 31) sont reliées par un accouplement Schmitz.
  6. Dispositif de pliage selon la revendication 3, caractérisé par le fait que les transmissions en T (53, 54) des arbres (30, 31) sont couplées par des courroies dentées ou par des chaînes avec des transmissions appropriées.
  7. Dispositif de pliage selon la revendication 1, caractérisé par le fait que les dispositifs d'entraînement (50, 51) des arbres (30, 31) ont des arbres cardans avec une transmission propre, qui sont entraînés par au moins un moteur.
  8. Dispositif de pliage (10) avec deux couteaux de pliage (20, 21) entraînés par moteur, qui peuvent être déplacés verticalement et relativement l'un vers l'autre à l'aide de disques à came (40, 41) logés sur des arbres (30, 31), avec une table d'arrivée (60) pour la matière à plier (M), et avec une piste de contre-pression (80), notamment selon une des revendications 2 à 7, caractérisé par le fait que les arbres (30, 31), avec leurs dispositifs d'entraînement (50, 51), peuvent être déplacés l'un vers l'autre au moyen d'un dispositif entraînement réglable (56).
  9. Dispositif de pliage selon la revendication 8, caractérisé par le fait que le dispositif d'entraînement (56) est un dispositif d'entraînement de montée et de descente.
  10. Dispositif de pliage (10) avec deux couteaux de pliage (20, 21) entraînés par moteur, qui peuvent être déplacés verticalement et relativement l'un vers l'autre à l'aide de disques à came (40, 41) logés sur des arbres (30, 31), avec une table d'arrivée (60) pour la matière à plier (M), et avec une piste de contre-pression (80), notamment selon une des revendications 2 à 9, caractérisé par le fait que les arbres (30, 31), avec leurs dispositifs d'entraînement (50, 51), peuvent être déplacés l'un vers l'autre moyennant une commande à cames, par exemple un entraînement par excentrique.
  11. Dispositif de pliage selon une des revendications 1 à 10, caractérisé par le fait qu'au moins un arbre (31) avec dispositif d'entraînement (51) est logé dans glissoir linéaire (37) d'un guidage linéaire vertical (38).
  12. Dispositif de pliage selon la revendication 11, caractérisé par le fait que le guidage linéaire (38) a un bâti à colonnes ou un guidage par rails.
  13. Dispositif de pliage selon une des revendications 1 à 12, caractérisé par le fait qu'au moins deux disques à came (40, 41) sont associés à chaque couteau de pliage (20, 21).
  14. Dispositif de pliage selon une des revendications 1 à 13, caractérisé par le fait que les couteaux de pliage (20, 21) sont logés respectivement de manière rotative, sur deux glissoirs linéaires (24, 25) couplés à un disque à came respectif (40, 41), dans des guidages linéaires verticaux (27, 28).
  15. Dispositif de pliage selon la revendication 14, caractérisé par le fait que les guidages linéaires (27, 28) ont des bâtis à colonnes ou des guidages par rails.
  16. Dispositif de pliage (10) avec deux couteaux de pliage (20, 21) entraînés par moteur, qui peuvent être déplacés verticalement et relativement l'un vers l'autre à l'aide de disques à came (40, 41) logés sur des arbres (30, 31), avec une table d'arrivée (60) pour la matière à plier (M), et avec une piste de contre-pression (80), notamment selon une des revendications 1 à 15, caractérisé par le fait qu'au moins deux, de préférence trois disques d'excentrique (44) sont disposés sur les arbres (30, 31), ces disques chargeant synchroniquement avec les disques à came (40, 41) des leviers basculants (45) couplés aux couteaux de pliage respectifs (20, 21).
  17. Dispositif de pliage selon une des revendications 1 à 16, caractérisé par le fait que la table d'arrivée (60) et une plaque-modèle supérieure ou table supérieure (65) sont réglables verticalement en hauteur, synchroniquement avec les couteaux de pliage (20, 21), par exemple au moyen d'un entraînement de montée et de descente réglable ou d'un agencement de leviers.
  18. Dispositif de pliage selon une des revendications 1 à 17, caractérisé par le fait qu'il y a une piste de contre-pression (80) avec au moins un cylindre de pression (82) par patin ou plaque de pression (84).
  19. Dispositif de pliage selon une des revendications 1 à 18, caractérisé par le fait qu'un dispositif de mesure (86) derrière les patins (84) peut être déplacé sur toute la largeur de travail (A).
  20. Dispositif de pliage selon une des revendications 1 à 19, caractérisé par des dispositifs d'affichage (90) affichant continuellement le réglage en hauteur des couteaux de pliage (20, 21), de la table d'arrivée (60) et de la plaque-modèle supérieure ou table supérieure (65).
EP95101525A 1994-07-28 1995-02-04 Dispositif de pliage Expired - Lifetime EP0694493B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9412210U 1994-07-28
DE9412210U DE9412210U1 (de) 1994-07-28 1994-07-28 Faltvorrichtung

Publications (3)

Publication Number Publication Date
EP0694493A1 EP0694493A1 (fr) 1996-01-31
EP0694493B1 true EP0694493B1 (fr) 1997-07-30
EP0694493B2 EP0694493B2 (fr) 2001-02-14

Family

ID=6911726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95101525A Expired - Lifetime EP0694493B2 (fr) 1994-07-28 1995-02-04 Dispositif de pliage

Country Status (6)

Country Link
US (1) US5961435A (fr)
EP (1) EP0694493B2 (fr)
AT (1) ATE156093T1 (fr)
CZ (1) CZ281765B6 (fr)
DE (2) DE9412210U1 (fr)
ES (1) ES2106576T5 (fr)

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CN102849521B (zh) * 2012-08-31 2015-02-18 苏州一致电子制程有限公司 折页机电动折页机构
CN103538294B (zh) * 2013-10-18 2015-12-02 浙江大学宁波理工学院 折纸机
CN103963358B (zh) * 2014-04-16 2016-08-03 蚌埠市高德机械自动化科技有限公司 一种用在滤清器滤纸生产过程中的折纸装置
DE14814724T1 (de) * 2014-05-21 2017-08-24 V-Lap Pty. Ltd. Wickelmaschine
CN104444531B (zh) * 2014-11-24 2017-02-08 盐城市华森机械有限公司 柔性材料接送堆垛装置
CN108249206B (zh) * 2016-12-29 2020-04-17 航天信息股份有限公司 发票折叠装置、发票折叠系统及发票自助终端
CN108840130A (zh) * 2018-05-11 2018-11-20 上海峰晟机械设备有限公司 往复式折纸机进料高度调整装置
EP3792208B1 (fr) * 2019-09-10 2022-11-09 Roth Composite Machinery GmbH Dispositif de pliage pour bandes de matières planes
CN113306767B (zh) * 2021-05-26 2022-09-27 湖南龙建达电子科技有限公司 一种机械电子工程电阻生产用整理装置

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Publication number Publication date
EP0694493B2 (fr) 2001-02-14
CZ118795A3 (en) 1996-02-14
ES2106576T3 (es) 1997-11-01
DE9412210U1 (de) 1994-12-01
DE59500439D1 (de) 1997-09-04
CZ281765B6 (cs) 1997-01-15
EP0694493A1 (fr) 1996-01-31
ES2106576T5 (es) 2001-06-16
ATE156093T1 (de) 1997-08-15
US5961435A (en) 1999-10-05

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