EP0694493A1 - Dispositif de pliage - Google Patents

Dispositif de pliage Download PDF

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Publication number
EP0694493A1
EP0694493A1 EP95101525A EP95101525A EP0694493A1 EP 0694493 A1 EP0694493 A1 EP 0694493A1 EP 95101525 A EP95101525 A EP 95101525A EP 95101525 A EP95101525 A EP 95101525A EP 0694493 A1 EP0694493 A1 EP 0694493A1
Authority
EP
European Patent Office
Prior art keywords
folding device
folding
shafts
gears
drives
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
EP95101525A
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German (de)
English (en)
Other versions
EP0694493B1 (fr
EP0694493B2 (fr
Inventor
Hermann Schäfer
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Individual
Original Assignee
Individual
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6911726&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0694493(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0694493A1 publication Critical patent/EP0694493A1/fr
Publication of EP0694493B1 publication Critical patent/EP0694493B1/fr
Application granted granted Critical
Publication of EP0694493B2 publication Critical patent/EP0694493B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/20—Zig-zag folders

Definitions

  • the invention relates to a folding device according to the preamble of claim 1.
  • Conventional folding machines have folding knives which are guided in the scenes and which are moved vertically relative to one another by means of cam disks and are 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. It is therefore not possible to vary the height of the folds during operation.
  • 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 drives and the shafts can be displaced relative to one another by means of a controllable drive, so that the height of the folds can be adjusted 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 gears 53, 54 are preferably coupled via a rack 55, so that only one electric motor 52 is necessary for the drive, which is connected, for example, to the lower gear 54. 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 the folding device 10 to be constructed in an extremely space-saving manner.
  • the gears 53, 54 can also be coupled via a hot 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 26, 27 have sliding cams 29 which engage in the cam grooves 42, 43 of the cams 40, 41.
  • 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 linear slide 37 By moving the linear slide 37 along the column frames 38, e.g. By means of a lifting spindle drive 56 shown in FIG. 5, 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 rack 55 arranged between the 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 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, 28, 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 slidably supported 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 in and above the inlet table 60, in the outlet table 70 and in the mold plate 65.
  • 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 (not shown). This is located behind the slide shoes 84 and can be moved over the entire working width A. Inaccuracies in the fold height H that occur are recognized immediately and can be corrected during operation by precisely readjusting the linear slide 38 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 38, 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 and limit switch (not shown).
  • 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 vertically adjustable 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 coupled synchronously, e.g.
  • At least one shaft 32 is mounted with its drive 52 in a linear slide 37 of a vertical linear guide 38 and can be displaced 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)
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 DE9412210U1 (de) 1994-07-28 1994-07-28 Faltvorrichtung
DE9412210U 1994-07-28

Publications (3)

Publication Number Publication Date
EP0694493A1 true EP0694493A1 (fr) 1996-01-31
EP0694493B1 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102849521A (zh) * 2012-08-31 2013-01-02 苏州一致电子制程有限公司 折页机电动折页机构
CN104444531A (zh) * 2014-11-24 2015-03-25 盐城市华森机械有限公司 柔性材料接送堆垛装置
EP3146097A4 (fr) * 2014-05-21 2017-12-13 V-Lap Pty. Ltd. Entraînement d'ourdissoir

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9412210U1 (de) † 1994-07-28 1994-12-01 Schäfer, Hermann, 35116 Hatzfeld Faltvorrichtung
DE19538519C2 (de) * 1995-10-05 1997-09-11 Rabofsky Karl Gmbh Messerfaltmaschine
DE19746734C2 (de) * 1997-10-13 2002-02-07 Uwe Baensch Messerfaltvorrichtung
DE10253994B4 (de) * 2002-11-19 2005-12-15 Karl Rabofsky Gmbh Faltmaschine mit translatorischem Antrieb
DE10253993B4 (de) * 2002-11-19 2008-03-27 Karl Rabofsky Gmbh Faltmaschine mit Antriebsschwinge
DE102006054100B4 (de) * 2006-11-15 2009-08-13 Karl Rabofsky Gmbh Verfahren und Messerfaltmaschine zum Herstellen von Stehfalten unter variablem Gegendruck
DE502007003468D1 (de) * 2007-05-02 2010-05-27 Sim Automation Gmbh & Co Kg Verfahren und Vorrichtung zum Falten einer Materialbahn
DE102008050454B3 (de) * 2008-10-08 2009-12-17 Karl Rabofsky Gmbh Verfahren und Faltvorrichtung zum Herstellen von Faltenpaketen mit variabler Faltenhöhe
CN102849519B (zh) * 2012-08-31 2015-11-18 苏州一致电子制程有限公司 移动式折页栅栏
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
CN108249206B (zh) * 2016-12-29 2020-04-17 航天信息股份有限公司 ***折叠装置、***折叠***及***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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1881814A (en) * 1931-09-02 1932-10-11 Brown Co Sheet folding mechanism
GB494414A (en) * 1937-03-22 1938-10-24 Ernest Edward Palmer Improvements in or relating to sheet folding machines
US4288278A (en) * 1978-12-08 1981-09-08 Daicel Chemical Industries Ltd. Apparatus for continuously producing pleated semipermeable membrane elements
US4363694A (en) * 1980-09-15 1982-12-14 Milliken Research Corporation Bonded fabric machine
DE3916156A1 (de) * 1989-05-18 1990-11-22 Josef Pondelak Maschine zum herstellen von akkordeonfalten bei materialbahnen

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US2241329A (en) * 1939-02-07 1941-05-06 Fort Howard Paper Co Paper folding machine
US2801671A (en) † 1955-08-29 1957-08-06 Westinghouse Electric Corp Manufacture of X-ray apparatus
US3269091A (en) † 1962-09-19 1966-08-30 Bartelt Engineering Co Inc Cartoning machine
US3262242A (en) † 1963-08-06 1966-07-26 Adrian T Godschalx Control circuit
US3805474A (en) † 1971-12-23 1974-04-23 D Gerstein Package construction and method for forming a strip of individual impregnated tissues into containers
US3957386A (en) † 1975-02-18 1976-05-18 Lupke Manfred Arno Alfred Corrugated tubing perforating machine
IT1069471B (it) * 1976-05-06 1985-03-25 Gd Spa Dispositivo di piegatura di materiale in foglio..particolarmente di sbozzati o fustellati di cartoncino o simili da alimentare ad una macchina condizionatrice di sigarette in pacchetti del tipo con coperchio incernierato hinged lid
FR2479099B1 (fr) * 1980-03-31 1986-09-12 Chazelas Marie Procede de realisation d'une liasse apte a la formation d'au moins un classeur a soufflet, et machine pour la mise en oeuvre d'un tel procede
DE3502176A1 (de) * 1985-01-23 1986-07-24 Bielomatik Leuze Gmbh + Co, 7442 Neuffen Vorrichtung zum falzen von materialbahnen
SE455378B (sv) * 1986-11-17 1988-07-11 Flodins Filter Ab Forfarande for framstellning av filter
US5160563A (en) * 1989-10-05 1992-11-03 Graber Industries, Inc. Method and apparatus for making an expandable cellular shade
US5149075A (en) * 1991-01-15 1992-09-22 Roll Systems, Inc. Apparatus for separating folded web
DE9412210U1 (de) † 1994-07-28 1994-12-01 Schäfer, Hermann, 35116 Hatzfeld Faltvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1881814A (en) * 1931-09-02 1932-10-11 Brown Co Sheet folding mechanism
GB494414A (en) * 1937-03-22 1938-10-24 Ernest Edward Palmer Improvements in or relating to sheet folding machines
US4288278A (en) * 1978-12-08 1981-09-08 Daicel Chemical Industries Ltd. Apparatus for continuously producing pleated semipermeable membrane elements
US4363694A (en) * 1980-09-15 1982-12-14 Milliken Research Corporation Bonded fabric machine
DE3916156A1 (de) * 1989-05-18 1990-11-22 Josef Pondelak Maschine zum herstellen von akkordeonfalten bei materialbahnen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102849521A (zh) * 2012-08-31 2013-01-02 苏州一致电子制程有限公司 折页机电动折页机构
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
EP3146097A4 (fr) * 2014-05-21 2017-12-13 V-Lap Pty. Ltd. Entraînement d'ourdissoir
CN104444531A (zh) * 2014-11-24 2015-03-25 盐城市华森机械有限公司 柔性材料接送堆垛装置

Also Published As

Publication number Publication date
DE59500439D1 (de) 1997-09-04
ES2106576T3 (es) 1997-11-01
CZ281765B6 (cs) 1997-01-15
CZ118795A3 (en) 1996-02-14
ES2106576T5 (es) 2001-06-16
EP0694493B1 (fr) 1997-07-30
DE9412210U1 (de) 1994-12-01
US5961435A (en) 1999-10-05
ATE156093T1 (de) 1997-08-15
EP0694493B2 (fr) 2001-02-14

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