EP2009178A2 - Système de support destiné à l'enjambement d'une voie de transport - Google Patents

Système de support destiné à l'enjambement d'une voie de transport Download PDF

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Publication number
EP2009178A2
EP2009178A2 EP20080104384 EP08104384A EP2009178A2 EP 2009178 A2 EP2009178 A2 EP 2009178A2 EP 20080104384 EP20080104384 EP 20080104384 EP 08104384 A EP08104384 A EP 08104384A EP 2009178 A2 EP2009178 A2 EP 2009178A2
Authority
EP
European Patent Office
Prior art keywords
central part
carrier system
band
carriage
functional element
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.)
Withdrawn
Application number
EP20080104384
Other languages
German (de)
English (en)
Inventor
Markus Stärk
Dieter Heidbüchel
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.)
EMA Elektronik Maschinen Apparatebau GmbH
Original Assignee
EMA Elektronik Maschinen Apparatebau GmbH
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 EMA Elektronik Maschinen Apparatebau GmbH filed Critical EMA Elektronik Maschinen Apparatebau GmbH
Publication of EP2009178A2 publication Critical patent/EP2009178A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines

Definitions

  • the invention relates to a carrier system for bridging a transport path, comprising a bar-shaped middle part and two end parts respectively arranged at one end of the middle part and a run on the central part and movable parallel to the longitudinal axis carriage, which is arranged in an interior of the hollow body designed as a middle part, wherein a functional element of the carriage protrudes from the interior of the central part and / or defines a passage for radiation or waves, wherein further a parallel to the longitudinal axis of the central part extending opening gap in the hollow body is closed by a synchronously movable with the functional element band.
  • a transport route is to be understood as meaning, in particular, a continuously moving screen of a paper machine, on the surface of which the material web is passed through the various sections of the paper machine (forming section, press section, drying section).
  • the carrier system is used to arrange in particular a Gautschknechts, a Travesierrutzs or a lace cutter. While the web is cut by means of a Gautschknecht means of emerging from a nozzle high-pressure water jet, the cutting process is carried out at a arranged in the dryer section tip cutter using a circular knife-shaped tool.
  • the paper machine clothing By means of a traversing cleaner, the paper machine clothing (forming fabric, press felt or dryer fabric) can be applied by means of a nozzle head using water and / or air and thereby be cleaned of dirt.
  • the carrier system is suitable, for example, for arranging a monitoring system which can be moved transversely to the bridged transport path, for example a camera-based recording and / or control system.
  • a monitoring system which can be moved transversely to the bridged transport path, for example a camera-based recording and / or control system.
  • visible light or IR radiation penetrates from outside through a functional element in the form of a lens optic to a detector arranged in the interior of the central part.
  • a functional element in the form of a lens optic
  • detector arranged in the interior of the central part.
  • all other types of detection are possible.
  • the carrier system with its storage and fastening elements which are coupled to the end parts or formed integrally therewith, can be fixed laterally next to the transport path that the central part spans the transport path and therefore must be designed as a statically self-supporting component.
  • the bearings of such carrier systems are arranged in the area of the so-called piling of a paper machine, where the bearings of the rollers, cylinders and other stationary components of the paper machine are also located.
  • the middle part of the carrier system can be arranged above, below, in front of or behind the paper machine clothing or the material web transported therefrom, depending on how the space conditions at the installation site and the mode of operation make it necessary.
  • the e.g. is formed by a lens of an optical detection system in the interior of the central part, to connect a strip of stainless steel, which closes the areas in which the functional element is not currently located, and can be pushed in synchronism with the functional element in both directions.
  • the operation and the drive of the band have been found to be problematic in the known carrier system.
  • a structurally simple design of the device should be achieved in that the device has a cleaning device with a plurality of cleaning heads, which are directed to the material web.
  • a papermaking machine that has a laser cutting arrangement that is stationary or movable with respect to the running direction of a fibrous web conveyed in the papermaking machine.
  • An advantage of this papermaking machine is that the paper web is cut cleanly and without mechanical contact.
  • the DE 600 04 572 T2 describes a device for cutting a web in a paper machine, in particular a water jet cutting device.
  • the device comprises a support which is mounted above or below the web and extends across the width of the web.
  • a movable carriage is attached to which in turn a water jet cutting nozzle is attached.
  • the movement of a flexible hose for supplying the water is assisted by a freewheeling wheel mounted on a second carriage which is movable along the carrier.
  • the invention has for its object to further develop a carrier system for bridging a transport path to the effect that construction and drive of the belt to close the opening gap for the Funtkionselement be simplified.
  • this object is achieved in that the carriage is moved by means of the belt, which arranged on opposite sides of the functional element sections transmit tensile forces on the car.
  • the band is not only used as a closure element for the opening gap in the hollow body, but at the same time as a force transmitting drive element for the functional element and also the car coupled thereto.
  • the one or the other portion of the belt is subjected to a tensile force, so as to move the functional element with the car.
  • the carriage is mounted and guided by means of a separate guide device in the interior of the central part. This storage can usefully be done using known linear guide devices.
  • the band has two separate sections, which are fastened with one end to the functional element and guided with the respective opposite end into the end parts and wound there, for example.
  • the power transmission to the functional element and the car takes place in this case depending on the direction of travel from different sides, ie either from one or the other end part ago.
  • the endless guide of the band according to the invention significantly simplifies the construction. There are no Aufwickelvor réelle and synchronized movements of separate band sections required.
  • the band In order to ensure the positioning accuracy of the functional element over the spanned transport path permanently and to realize a high level, the band should be positively coupled to at least one pulley and positive locking elements of the band in an endless guide on the inside or in two separate sections on the interior in be arranged facing the hollow body side.
  • the side of the belt facing the bridged transport path, which comes into contact with the media in the paper machine, can be made smooth and therefore the medium, for example fibers, little attack surface offer, so that the tendency for the formation of deposits is low.
  • the invention further ausgestaltend is provided that the belt is a toothed belt and the deflection roller are formed as gear wheels in engagement therewith.
  • Timing belts and the associated belt wheels are available as standard components cost-effective in a large number of lengths and are characterized by their good media resistance and long service life.
  • the band is guided with opposite longitudinal edges in mutually facing grooves in walls of the central part, wherein the walls bound the opening gap on both sides.
  • the tape is also securely guided in a direction perpendicular to the longitudinal direction of the central part and perpendicular to the bridged transport path.
  • a kind of labyrinth seal is created by the tongue and groove-like compound (the band forms the spring in this case), which effectively prevents the ingress of unwanted media into the interior of the central part.
  • Such a seal is essentially maintenance and wear-free despite its high efficiency. Within certain intervals, only the replacement of the toothed belt will be required.
  • the central part may have a cross-sectionally C-shaped profile, the opening is closed by means of at least one lid.
  • a C-profile or U-profile is characterized by a high moment of resistance, especially when the middle part of the C or U has a high height and the middle part is parallel to the load direction.
  • this leg can limit the opening gap on one side and an additional profile, preferably in the form of a flat profile, the opening gap on the opposite side with its front side.
  • the invention further ausgestaltend it is proposed that a bearing element of a deflection roller is displaceable in the longitudinal direction of the central part and is biased away by means of a spring element in the direction of the other deflection roller.
  • Any elongations of the tape especially when using plastic materials, can be compensated in this way to the required extent and the tape tension can be kept constant.
  • a bearing element by means of a gas spring or a hydraulic cylinder which is angeordet between the pulleys, is prestressed, wherein the pressure in the gas spring or the hydraulic cylinder is adjustable.
  • an energy supply chain is still provided in the middle part, which supplies the carriage and / or the functional element with electrical energy and / or water and / or compressed air and / or other media.
  • a carrier system 1 of a traverse cleaner has a bar-shaped middle part 2 and two end parts 5, 6 each arranged at the ends 3, 4 thereof.
  • the middle part 2 spans a transport path in the form of a paper machine wire, which is indicated only by the two contour lines 7, 8. Not shown are known from the prior art storage elements on which the end portions 5, 6 are supported on a so-called stiffening a paper machine.
  • the end parts 5, 6 are formed as so-called deflection boxes, in which in FIG. 1 invisible deflection rollers 9, 10 for deflecting a in FIG. 1 also not visible toothed belt are arranged.
  • the middle part 2 is formed as a hollow body with a total approximately rectangular cross-section. By three covers 11, 12, 13, the view into an interior 14 of the middle part 2 in the FIGS. 1 and 2 blocked.
  • FIG. 2 It can be seen that on an underside 15 of the middle part 2 is over the entire length of the central part 2 extending opening gap 16 with a constant width.
  • a functional element 17 emerges, which is designed in the form of a driver 18 and a retaining element 19 penetrating a bore therein with a slight play.
  • the driver 18 is fastened in a manner which will be explained in more detail later on a belt 20, with the aid of which the driver 18 can be moved over the entire length of the opening gap 16, the belt 20 sealing the opening gap 16 in a manner which will be described in more detail later, and Although independent of the position of the functional element 17, ie the driver 18 and the holding member 19.
  • FIG. 3 allows due to the removed lid 11, 12, 13 a view into an interior 14 of the middle part 2 free. It can be seen that the holding member 19 is passed through the driver 18, and that the driver 18 from a lower, in FIG. 2 recognizable driver plate 22 and an upper in FIG. 3 visible driver plate 23, which are both pressed together by means of four screws, wherein the screws in holes penetrate the band 20. In the area of the bore for the holding element 19, a penetration in the band 20 is also present.
  • the band 20 is designed as a circulating toothed belt, wherein a deflection in the region of the end portions 5 and 6 by means of the two guide rollers 9, 10, which are provided with an external toothing, which is in positive engagement with the toothing of the toothed belt , A drive of the toothed belt by means of an electric motor 28 which is flanged to a worm gear 9, which in turn is coupled to a shaft with which the arranged in the end portion 6 guide roller 10 is driven.
  • the cross-sectional view according to FIG. 6 finally shows that the middle part 2 on the in FIG. 6 Left side of a cross-sectionally C-shaped profile 33 is limited.
  • the C-shaped profile runs with its central part in a direction parallel to the holding element 19 and is due to its relatively high height 34 able to absorb large lateral forces in the direction of the double arrow 35 with its large moment of resistance. This allows large spans of the middle part 2 and thus the bridging even wider transport routes, ie paper machine clothing.
  • the C-profile 33 has a groove 37 in a wall 36.
  • an additional profile 38 forming an opposite wall with a substantially rectangular cross-section has a groove 39 which matches its geometry.
  • the belt 20 in the form of the toothed belt thus forms a tight seal of the interior 14 of the central part 2 against the ingress of contaminants, in particular fibers and water from the outside.
  • the gaps between the groove cheeks and the groove bottom of the grooves 37 and 39 on the one hand and the surfaces of the longitudinal edges 40 and 41 of the toothed belt on the other hand form a kind of labyrinth seal, despite the simple and substantially maintenance-free construction of the lower end of the inner space 14 for a durable and reliable Seal the same care.
  • the carrying capacity of the central part 2 is essentially effected by the central region 42 of the C-profile 33.
  • the attached to the two end portions 5, 6 additional profile 38 does not assume priority support function, but ensures a sufficiently stable guidance of the longitudinal edge 41 of the toothed belt.
  • the covers 11, 12, 13 do not have any supporting function.

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EP20080104384 2007-06-26 2008-06-12 Système de support destiné à l'enjambement d'une voie de transport Withdrawn EP2009178A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710029559 DE102007029559B3 (de) 2007-06-26 2007-06-26 Trägersystem zur Überbrückung einer Transportstrecke

Publications (1)

Publication Number Publication Date
EP2009178A2 true EP2009178A2 (fr) 2008-12-31

Family

ID=39713440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080104384 Withdrawn EP2009178A2 (fr) 2007-06-26 2008-06-12 Système de support destiné à l'enjambement d'une voie de transport

Country Status (2)

Country Link
EP (1) EP2009178A2 (fr)
DE (1) DE102007029559B3 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60004572T2 (de) 1999-01-25 2004-02-26 Paprima Industries Inc., Dorval Vorrichtung zum Abschneiden einer Bahn in einer Papiermaschine
DE69617346T2 (de) 1995-09-18 2004-03-25 Voith Sulzer Paper Technology North America, Inc., Appleton Lasereinrichtung zum Schneiden eines Überführungsstreifens
DE102005022035A1 (de) 2004-10-22 2006-04-27 Robo Paper B.V. Vorrichtung und Verfahren zum Reinigen einer Matrialbahn sowie Verfahren zum Herstellen eines Speedup-Cleaning-Heads

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69617346T2 (de) 1995-09-18 2004-03-25 Voith Sulzer Paper Technology North America, Inc., Appleton Lasereinrichtung zum Schneiden eines Überführungsstreifens
DE60004572T2 (de) 1999-01-25 2004-02-26 Paprima Industries Inc., Dorval Vorrichtung zum Abschneiden einer Bahn in einer Papiermaschine
DE102005022035A1 (de) 2004-10-22 2006-04-27 Robo Paper B.V. Vorrichtung und Verfahren zum Reinigen einer Matrialbahn sowie Verfahren zum Herstellen eines Speedup-Cleaning-Heads

Also Published As

Publication number Publication date
DE102007029559B3 (de) 2008-09-25

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