EP1012097A1 - Dispositif de guidage d'une bande de papier sans fin - Google Patents

Dispositif de guidage d'une bande de papier sans fin

Info

Publication number
EP1012097A1
EP1012097A1 EP98941309A EP98941309A EP1012097A1 EP 1012097 A1 EP1012097 A1 EP 1012097A1 EP 98941309 A EP98941309 A EP 98941309A EP 98941309 A EP98941309 A EP 98941309A EP 1012097 A1 EP1012097 A1 EP 1012097A1
Authority
EP
European Patent Office
Prior art keywords
paper web
transport roller
guiding
endless
paper
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
EP98941309A
Other languages
German (de)
English (en)
Other versions
EP1012097B1 (fr
Inventor
Dieter Brückel
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.)
Boewe Systec AG
Original Assignee
Boewe Systec AG
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 Boewe Systec AG filed Critical Boewe Systec AG
Publication of EP1012097A1 publication Critical patent/EP1012097A1/fr
Application granted granted Critical
Publication of EP1012097B1 publication Critical patent/EP1012097B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely

Definitions

  • the present invention relates to a device for guiding an endless paper web and in particular to a device for guiding an endless paper web without the aid of perforated edges or transport spikes to a subsequent paper processing device.
  • Various devices for guiding a continuous paper web e.g. B. to a paper processing plant known.
  • a paper guiding device In order to ensure that the paper runs as straight as possible, for example by means of a paper cutting device or a printer, one approach for a paper guiding device is to use so-called tractor devices in which spikes engage in the transport holes stamped on both sides of the paper web for transporting the paper.
  • a disadvantage of this paper guiding device is that the paper web for introducing the hole edges must first be brought by the manufacturer to a manufacturer before it reaches the end user.
  • the transport holes are often laterally separated again in the further processing devices for optical or other reasons, which in turn means unnecessary paper consumption and paper waste and necessitates an edge cutting device.
  • a device is also known in the prior art, in which a paper guide device, which is described in more detail in FIG. 6, has a tub structure 100 with a concave or convex surface 102 and shoulders 104.
  • the shoulders 104 are provided to engage opposite edges of a paper web 106.
  • the direct distance 108 between the shoulders 104 on both sides of the trough structure 100 is smaller than a width 110 of the paper web 106.
  • the trough structure 100 results in a corresponding deformation of the paper web 106 with respect to the width 110, so that the distance 108 between the edges along the broad sides of paper web 106 in tub structure 100 is less than the spacing 110 between these edges.
  • paper web 106 passes through tub structure 100 from an inlet 112 to an outlet end 114. Shoulders 104 engage the paper edges to hold and guide the paper in the tub structure and in a straight line.
  • the paper web 106 runs through the trough structure 100 to a flat surface 116.
  • the flat surface 116 extends from the concave surface 102 (supporting structure) of the outlet end 114 of the trough structure 100 to the alignment wipers 118.
  • the flat surface 116 also has a center therein arranged opening 120.
  • the drive roller 122 sits in the opening 120.
  • the drive roller 122 is arranged in the opening 120 in a vertical plane such that an outer surface 124 of the drive roller 122 made of rubber is located slightly above the flat surface 116.
  • the outer layer 124 of the drive roller 122 engages the underside of the paper web 106, as well it runs over the flat surface 106 and conveys the paper web 106 by means of the rotation of the drive roller 122.
  • Alignment wipers 118 are provided at the end of flat surface 116 opposite tub structure 100, as shown in FIG. 6.
  • the alignment wipers 118 include an upper lip 124 and a lower lip 126.
  • a pinch roller 128 is used to apply pressure to a paper web that passes between the pinch roller 128 and the drive roller 122 so that the paper web 106 contacts the drive roller 122 maintains.
  • the direction of movement of the paper web 106 through the trough structure 100 is represented by the arrow 130 in FIG. 6.
  • the drive roller 122 is arranged such that it protrudes through the recess 120 over the flat surface 116, the drive roller 122 is not axially displaceable.
  • Such a device is known for example from US Pat. No. 5,213,246, which reaches the paper guide by means of a tub structure in which the paper web runs, the tub structure is made from one piece. Due to their structure, a separate tub structure is required for each paper web width. In addition, with a very wide, thin paper web that runs through the tub structure, only a very slight increase in the rigidity of the paper web can be expected.
  • the present invention has for its object to provide a device for guiding a continuous paper web, which can handle the paper web regardless of its width and thickness, without the use of tractor devices or web edge controls.
  • the present invention provides a device for guiding an endless paper web, which has two side guides which guide the paper web along their longitudinal edges and a deflection device, by means of which the paper web experiences at least one deflection from its direction of movement when it moves between the side guides.
  • the present invention is based on the knowledge that the vertical deflection of the paper web from the direction of movement brings about an increased stiffness of the paper web, thereby preventing the paper web from running up on the side guides or damaging the paper web when the paper web runs against the side guides .
  • An advantage of the present invention is that the paper costs can be significantly reduced, since the paper webs are used with an unassembled edge, thereby avoiding that the transport holes have to be separated laterally in the further processing devices for optical or other reasons, thereby avoiding unnecessary paper consumption and paper waste occurs and no additional device for cutting off the edge has to be provided.
  • the device for guiding an endless paper web can handle paper webs with any paper web width, paper thickness or strength.
  • Figure 1 is a perspective view of an embodiment of the device according to the invention for guiding an endless paper web with a first transport roller arrangement.
  • FIG. 2a shows a perspective illustration of an alternative transport roller arrangement
  • FIG. 2b shows a perspective illustration of an alternative arrangement for prestressing a transport roller arrangement
  • FIG. 3 shows a sectional side view of the device for guiding an endless paper web, in which a marker reading device is provided;
  • FIG. 4 is an illustration of the marker reading device shown in FIG. 3;
  • FIG. 5 is a side sectional view of the device for guiding an endless paper web with an alternative ven arrangement of the paper guide rods and the marker reading device;
  • Fig. 6 shows a paper guide device according to the prior art.
  • FIG. 1 shows a first preferred exemplary embodiment of a device according to the invention for guiding an endless paper web.
  • a plurality of round bars 10, 12, 14 is mounted between two side walls 16 (only one wall is shown).
  • two side guides 18, 20, which are attached to a cross bar 22 and are axially displaceable with respect to the same.
  • a plurality of guide strips 24 are also arranged on the transverse strip 22.
  • the first transport roller 26 is fastened in a rotationally fixed manner to a shaft 30 which can be rotated about an axis 34 of the shaft 30 in a direction of rotation, which is indicated by the arrow 32.
  • a drive roller 36 of the transport roller 26 is connected via a positive drive belt 38 to a drive roller 40 which is attached to a shaft 42 of a feed motor 44.
  • An L-shaped bearing block 46 is axially displaceable with respect to a central axis 48 of a shaft 50, a biasing spring 52 being attached to a lower section of the L-shaped bearing block 46.
  • a shaft 56 is arranged, which is connected to a guide 58 for the second transport roller 28, the transport roller 28 rotating about an axis 59 arranged in the guide 58.
  • two pins 62 are provided perpendicular to a central axis 60 of the shaft 56, on each of which two springs 64 exert a spring force.
  • the central axis 60 is perpendicular to the axis of rotation 34 of the transport roller 26.
  • the pivoting range of the second transport roller 28 about the central axis 60 is determined by means of the springs 64, as is shown by the double arrow 66 in FIG. 1.
  • FIG. 1 also shows an endless paper web 68 which runs through the device for guiding an endless paper web in the direction of movement represented by the arrow 70 and on which optional reading marks 72 are provided if these are required for further processing of the continuous paper web 68.
  • the device for guiding an endless paper web is referred to below as a paper transport device.
  • the paper web 68 is fed from a stack, a roll, or online from a printer (not shown) to the paper transport.
  • the paper web 68 which is deflected by at least one of the round bars 10, 12, 14, is guided in a wave-like manner through the round bars 10, 12, 14 arranged transversely to the direction of movement of the paper web 68, which is shown between the two side walls 16 (only one wall is shown ) are stored.
  • the two side guides 16, 18 for the paper web 68 are fastened on a cross bar 22 and axially displaceable with respect to the same.
  • the laterally adjustable side guides 18, 20 are axially adjusted so that their spacing is only slightly wider than the paper web 68. Due to the undulating course through the round bars 10, 12, 14 holds the paper web 68 so high that it is neither damaged nor run up against the side guides 18, 20 when it runs against the side.
  • One or more of the round bars 10, 12, 14, ie in the case of three round bars preferably the middle round bar 12 can also be adjusted in height with respect to the paper web 68 so that the size of the paper wave amplitude is from 0 (see also FIG. 4) to several millimeters is highly adjustable, which allows the resulting stiffness of different types of paper to be set.
  • a paper wave amplitude of 0 is preferably set when a new continuous paper web is "threaded" into the device for guiding an endless paper web, or the paper web 68 running through the device already has such a high strength that no or only a slight additional increase in the strength for straight guidance of the paper web 68 is required.
  • the paper web 68 is fed to the pair of transport rollers 26, 28 via the side guides 18, 20 fastened on a cross bar 22.
  • the guide strips 24, on which the paper web rests, can, as shown in FIG. 1, be designed in the form of elongated ribs, wherein any guide supports or support surfaces for the paper web 68 are conceivable.
  • a feed is applied to the paper web 68 by means of the first and second transport rollers 26, 28, the first transport roller 26 being arranged in a rotationally fixed manner on the shaft 30 and being driven by the feed motor 44 via the form-fitting drive belt 38.
  • the second transport roller 28 is attached to the L-shaped bearing block 46, which is axially displaceable with respect to the axis 48 of the rod 50.
  • the biasing spring 52 which, as shown in FIG. 1, in a on the L-shaped La gerblock 46 is arranged, the second transport roller 28 is biased against the first transport roller 26, ie the transport roller 28 is pressed onto the transport roller 26 with a certain spring force.
  • the second transport roller 28 is furthermore arranged in the bearing block 46 such that it can rotate about the axis of rotation 60, the axis of rotation 60 being positioned perpendicularly and centrally to the axis 34 about which the shaft 30 rotates.
  • the rotational position or the pivoting range for a pendulum movement when aligning the paper web 68 of the second transport roller can 28 can be set.
  • the lower transport roller 26 of the transport roller arrangement is preferably made of steel. and has an exact diameter, so that it is ensured that deformations or temperature expansions, such as occur to a greater extent with other materials, do not have a negative effect on a constant transport path of the paper web 68 per revolution of the drive.
  • the upper transport roller 28 of the transport roller arrangement is provided with an elastomer coating with a high coefficient of friction in order to avoid any slip that may occur between the upper transport roller 28 and the continuous paper web 68.
  • the pair of transport rollers 26, 28 is axially displaceable on the shafts 30 and 46, respectively, so that the pair of transport rollers 26, 28 can be aligned centrally with the paper web.
  • the upper transport roller 28, which serves as a pressure roller, is also rotatably mounted in the L-shaped bearing block 46, its axis of rotation 60 being arranged perpendicularly and centrally to the axis of rotation 32 of the roller 26. Via the adjustable compression springs 68, which act on the axis of rotation 60 via the two pins 60 on the shaft 58.
  • roller 28 it is achieved that the axis of the roller 28 aligns itself parallel to the roller 26. If an inclined paper web 68 through the side guide strips 18, 20 in the desired position parallel to the machine center, that is. aligned in a parallel alignment of the paper web 60 with respect to the side guide strips 18, 20, the roller 28 can also perform the associated pendulum movement during the alignment process.
  • FIG. 2a shows an alternative transport roller arrangement for adjusting the rotational position of the transport roller 28. Since in the case of very thin paper a forced deflection of the paper web 68 is not possible, FIG. 2 shows a further exemplary embodiment in which the axis of rotation 60 of the roller 28 via adjustable locking screws 74, i. H. by rotating the screw heads 75 in the barrel exactly aligned with the side guides 18, 20 and can be determined. This prevents the transport roller 28 from performing the previously described pendulum movement, by means of which an obliquely running paper web 68 is aligned parallel to the lateral guide strips 18, 20, thereby avoiding a paper web which consists of a very thin and sensitive paper, is damaged, d. H. wrinkled or even tears.
  • the setting of the position of the transport roller 28 with respect to the axis 60, ie the two pins 62 with respect to the swivel range 66 of the transport roller 28, can be set by means of the two locking screws 74 can be achieved.
  • the axis of rotation 59 about which the transport roller 28 rotates is preferably aligned parallel to the axis of rotation 32 of the transport roller 26.
  • the mode of operation of the transport roller arrangement of FIG. 2 is otherwise identical to that of the transport roller arrangement of FIG. 1.
  • 2b shows an alternative arrangement for prestressing the bearing block 46 and thus the upper transport roller 28 against the one under the transport roller 26.
  • the bearing block 46 is rotatably connected to the shaft 50, wherein the bearing block 46 can also be axially displaceable with respect to the shaft 50.
  • Two connecting struts 75a are arranged near the two ends of the shaft 50, the lower sections 75b of which have an opening for receiving the shaft 50, the lower sections 75b of the connecting struts 75a being connected to the shaft 50 in a rotationally fixed manner.
  • the upper sections of the connecting struts 75a are opposite two L-shaped stop members 75c, which have a recess 75d, in order to be able to fasten the L-shaped stop members 75c to a support structure (not shown).
  • a compression spring 75e is provided between the opposite connecting struts 75a and the L-shaped stop members 75c.
  • a paper transport device is shown, on which a reading device 76 is arranged, which is provided on the side facing the paper web 68, preferably above the adjustable round rod 12, the reading device 76 corresponding to that perpendicular to that in the direction of movement of the paper web 68 adjustable round rod 12 by means of an adjusting device 78 with respect to the position, which is shown by the double arrow 80, is adjustable.
  • the reading device 76 detects the markings 72 located on the paper web 68, preferably with an optical device 77.
  • the adjusting device 78 is used to adjust both the vertical position of the round rod 12, and thus the deflection of the paper web 68, and the position of the reading device 76.
  • the position of the round rod 12 is set such that the paper web 68 does not experience any deflection.
  • the different, adjustable positions of the adjustable round rod 12 and thus the deflection of the paper web 68 are provided in order to deflect the paper web 68 to the speed at which the paper web 68 runs through the paper guiding device, taking into account the paper strength, the paper stiffness, the load capacity or to be able to adjust the paper thickness.
  • a constant predefined distance between the paper web 68 running over the adjustable round bar 12 and the reading device 76 is achieved, with which the format length control, e.g. B. in paper cutters, required reading marks 72 can be detected or read.
  • the arrangement of the guide rods 10, 12, 14 and the reading device 76 can be variably set between a maximum deflection of the paper web 68 and a minimum or no deflection of the paper web 68 (see FIG. 4), as has already been described above.
  • FIG. 5 shows a side sectional view of the paper transport device with an alternative arrangement of the paper guide rods 10, 12, 14 and the marking reading device 76.
  • FIG. 5 shows an attachment of the reading device 76 and the adjusting device 78 mirror-symmetrical with respect to FIG. 4 with respect to the direction of movement the paper web 68.
  • This variant for the arrangement of the reading device 76, the adjusting device 78 and the round bars 10, 12, 14 is used when the markings 72 to be detected by the reading device 76 are on the side of the paper web 68 facing the transport roller 28.
  • a further arrangement of the reading devices 76 and the round bars 10, 12, 14 is to provide the reading devices 76 on both sides of the paper web on the side facing the paper web 68 above any round bar 10, 12, 14, whereby the markings 72 to be detected can be provided on any side of the paper web 68 and the reading of the reading marks 72 is reliably ensured.
  • the attachment of the reading devices 76 is, however, not limited to the fact that the reading devices 76 are necessarily arranged above the adjustable round bar 12, but they can also be located above another round bar 10, 12, 14.
  • the evaluation device calculates from the detected positions of the reading marks 72 the required paper feed and controls the transport roller arrangement or the transport roller 26 based on the determined values, as a result of which the feed of the continuous paper web 68 is set precisely and correct further processing of the continuous paper web 68 is ensured.
  • any number of round bars can be provided, with several adjustable round bars being used can to allow multiple deflection of the paper web 68.
  • a plurality of corresponding deflection arrangements which consist of a plurality of round bars or are designed in accordance with the first preferred exemplary embodiment, can be arranged at predefined intervals in order to enable straight and correct guidance of an endless paper web even over longer distances.
  • the design of the round rods provided for the deflection of the continuous paper web 68 can be changed with respect to the shape shown in FIGS. 1 to 5. It can e.g. B. several rollers are provided, which are arranged axially and evenly spaced rotatably on the round rods, two outer rollers are arranged coherently with respect to the side guides or the side guide rails, so that the edges of the paper web 68 are perpendicular to the side guides, d. H. only run perpendicular to the side guides. This results in a smaller contact surface on which the continuous paper web 68 runs over the corresponding rollers.
  • the reading device 76 can be arranged at a location other than above a round bar, for example the adjustable round bar, but it must be ensured that the distance between the paper web 68 and the corresponding reading device 76 is kept constant in order to to ensure accurate and error-free reading of the reading marks 72 arranged on the paper web.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un dispositif permettant de guider une bande de papier sans fin (58), qui comporte deux glissières latérales (18, 20) qui guident la bande de papier (68) au niveau de ses arêtes longitudinales, ainsi qu'un dispositif de renvoi (10, 12, 14) qui permet à la bande de papier (68) de dévier de son sens de mouvement lorsqu'elle se déplace entre les glissières latérales (18, 20).
EP98941309A 1997-09-12 1998-07-09 Dispositif de guidage d'une bande de papier sans fin Expired - Lifetime EP1012097B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19740222A DE19740222A1 (de) 1997-09-12 1997-09-12 Vorrichtung zum Führen einer Endlospapierbahn
DE19740222 1997-09-12
PCT/EP1998/004268 WO1999014147A1 (fr) 1997-09-12 1998-07-09 Dispositif de guidage d'une bande de papier sans fin

Publications (2)

Publication Number Publication Date
EP1012097A1 true EP1012097A1 (fr) 2000-06-28
EP1012097B1 EP1012097B1 (fr) 2002-03-20

Family

ID=7842205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941309A Expired - Lifetime EP1012097B1 (fr) 1997-09-12 1998-07-09 Dispositif de guidage d'une bande de papier sans fin

Country Status (7)

Country Link
US (1) US6354478B1 (fr)
EP (1) EP1012097B1 (fr)
JP (1) JP2001516690A (fr)
CA (1) CA2296118C (fr)
DE (2) DE19740222A1 (fr)
ES (1) ES2170519T3 (fr)
WO (1) WO1999014147A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475327A1 (fr) 2003-05-06 2004-11-10 Pitney Bowes Inc. Méthode et dispositif limitant les déchirements de bandes dans un dispositif à decouper une bande
EP1683651A2 (fr) 2005-01-19 2006-07-26 Pitney Bowes, Inc. Contrôle de mouvement pour l'entrée d'un système d'insertion à grande vitesse

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US7296717B2 (en) * 2003-11-21 2007-11-20 3M Innovative Properties Company Method and apparatus for controlling a moving web
US20050245152A1 (en) * 2004-04-30 2005-11-03 Highland Industries, Inc. Coated airbag fabric
US20050245154A1 (en) * 2004-04-30 2005-11-03 Highland Industries, Inc. Coated airbag fabric
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US20050284109A1 (en) * 2004-06-23 2005-12-29 Jones Thomas P Package wrapping machine with self-centering film support system
ITTO20050327A1 (it) 2005-05-12 2006-11-13 Tecnau Srl Dispositivo di avanzamento per un modulo continuo
JP4715609B2 (ja) * 2006-04-17 2011-07-06 船井電機株式会社 画像形成装置
CN104786550B (zh) * 2015-04-16 2018-02-23 温州中科包装机械有限公司 包装盒纸张限厚限宽机构
CN104786551B (zh) * 2015-04-16 2018-02-23 温州中科包装机械有限公司 包装盒纸张限厚机构
CN105459441B (zh) * 2016-01-06 2018-04-10 周崇仪 天地盖纸盒成型机进纸机构
CN107840188B (zh) * 2017-11-28 2023-09-08 桐乡越顺经编有限公司 一种纱线传送调节机构
CN112897169A (zh) * 2021-01-15 2021-06-04 广东圳通铝模科技有限公司 一种铝膜整平装置
CN114214826A (zh) * 2021-12-16 2022-03-22 邵阳东信棉业有限公司 一种面料生产用除尘装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475327A1 (fr) 2003-05-06 2004-11-10 Pitney Bowes Inc. Méthode et dispositif limitant les déchirements de bandes dans un dispositif à decouper une bande
EP1683651A2 (fr) 2005-01-19 2006-07-26 Pitney Bowes, Inc. Contrôle de mouvement pour l'entrée d'un système d'insertion à grande vitesse

Also Published As

Publication number Publication date
DE59803455D1 (de) 2002-04-25
DE19740222A1 (de) 1999-03-25
ES2170519T3 (es) 2002-08-01
CA2296118C (fr) 2002-07-09
EP1012097B1 (fr) 2002-03-20
JP2001516690A (ja) 2001-10-02
US6354478B1 (en) 2002-03-12
CA2296118A1 (fr) 1999-03-25
WO1999014147A1 (fr) 1999-03-25

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