EP1787732A1 - Dispositif pour l'aspiration de particles résultantes des operations de manufacture sur les bandes en mouvement - Google Patents

Dispositif pour l'aspiration de particles résultantes des operations de manufacture sur les bandes en mouvement Download PDF

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Publication number
EP1787732A1
EP1787732A1 EP06024082A EP06024082A EP1787732A1 EP 1787732 A1 EP1787732 A1 EP 1787732A1 EP 06024082 A EP06024082 A EP 06024082A EP 06024082 A EP06024082 A EP 06024082A EP 1787732 A1 EP1787732 A1 EP 1787732A1
Authority
EP
European Patent Office
Prior art keywords
housing
suction device
air
material web
guide
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
EP06024082A
Other languages
German (de)
English (en)
Other versions
EP1787732B1 (fr
Inventor
Christian Trimborn
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.)
HILDEBRAND SYSTEME GMBH
Original Assignee
Hildebrand Systeme 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 Hildebrand Systeme GmbH filed Critical Hildebrand Systeme GmbH
Publication of EP1787732A1 publication Critical patent/EP1787732A1/fr
Application granted granted Critical
Publication of EP1787732B1 publication Critical patent/EP1787732B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • B08B5/043—Cleaning travelling work
    • B08B5/046—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/088—Means for treating work or cutting member to facilitate cutting by cleaning or lubricating

Definitions

  • the invention relates to a suction device for removing particles formed during machining on moving material webs.
  • this very movement of the web by entraining air, creates a laminar flow, which manifests itself as an air layer lying above the web, and this air layer is thicker, ie, the more air becomes entrained, the rougher the surface of the web is.
  • particles that are formed or detaching during processing for example, cutting dust or production-related surface dust when cutting paper webs or fibers or chips, are then taken away and distributed in the environment.
  • EP 0 887 160 A2 is a suction device for removing dust, which arises when cutting paper, cardboard and the like known.
  • the paper web passes between two counter-rotating cutting blades.
  • the extraction point is not shielded to the outside, so that dust can still get into the environment.
  • the arrangement of two separate suction devices is complicated and costly.
  • the US 5 774 992 A describes a device for a circular saw, in which two superimposed plates include one or more chambers communicating with each other, which are in communication with hose connections of a suction device.
  • the plates have two superposed slots through which the saw blade of a circular saw mounted on the top plate projects.
  • the bottom plate provides a sliding surface that allows the saw to be moved over a workpiece. Processing dust should collect in the chambers formed by the plates and be sucked through the hose connections.
  • the object of the invention is to provide a suction device for removing particles formed during processing on moving material webs, such as dusts, chips, fibers and the like, with which such particles not only directly at the place of formation, i. the processing point, but also along the path that takes the web after the processing point still within the processing machine, highly effective and as completely sucked off and transported away, so that possible no or as few particles enter the environment or can pollute the machine and the machine remains maintenance free for a long period of time.
  • moving material webs such as dusts, chips, fibers and the like
  • a housing of the suction device comprises a guide or deflection roller of the processing machine, around which the material web is guided or over which it is guided away in close contact, at least in a hood-like manner.
  • the opening extends at the bottom of the housing, through which the guide or deflection roller projects into the housing, over the entire width of the guide or deflection roller and is limited in by the movement of the material web defined longitudinal direction by edges, the only small distance hold to the lateral surface of the guide or deflection roller or to the surface of the material web.
  • the housing also has, in the longitudinal direction opposite to each other, an air supply passage and an air discharge passage through which an air flow is directed longitudinally through the housing. This air flow breaks the laminar flow over the moving web, discharges the particles entrained by it and carries them off, e.g. in a collecting device with filter system.
  • the clear width of the air discharge channel is chosen to be greater than the clear width of the air supply channel, the air flow slows down in the air discharge channel, the air expands and is pushed up, thereby lifting off particles that should still be on the material web get into the air flow and are transported away.
  • the clear width of the air discharge channel can also be the same size as the inside width of the air supply channel; this avoids that particles slowed down by the slowing down of the air flow can sink and accumulate in the air discharge duct.
  • the air supply channel and the air discharge channel extend over the entire width of the guide or deflection roller or the material web.
  • At least one fluidizing point can be provided on the inner wall of the housing between the air supply channel and the air discharge channel.
  • such a vortex point is located on the inner wall of the narrow Beer micströmkanals.
  • the one or more vertebral points may be formed by projections or indentations of the housing wall.
  • the air flow can be passed in the direction of movement of the web through the housing; at high speed webs, z. in the printing industry usual 17m / sec, but it is advantageous if the air flow is directed against the direction of movement of the web through the housing.
  • a guide or deflection roller 1 of a machine not shown, with the machining of a moving material web 2 can be made, which is guided around this guide roller 1 and is moved in the direction of arrow P1.
  • the web 2 moves in such a direction on the guide roller 1 and away from her that both directions of movement in their extension are at an acute angle to each other.
  • the guide roller 1 protrudes with its circumference to a part from below into the housing 3 of a suction device, so that this housing 3 comprises the guide roller 1 as a hood from above to a part.
  • the housing 3 on its underside an opening 4, which extends over the entire width of the guide roller 1 and the web 2 and whose length in the direction of movement of the web 2 on the other hand is so great that the length determining edges 5, 6 (see also FIGS. 9 and 10) keep a small distance to the peripheral surface of the guide roller 1 or to the guide roller 1 guided material web 2.
  • the housing 3 has a likewise over the entire width of the guide roller 1 or the web 2 extending air supply channel 7 and this opposite a likewise extending over the entire width of the guide roller 1 or web 2 Lucasabbowkanal 8.
  • the clear width of the air discharge channel 8 together with its air outlet opening 10 is significantly larger, even many times greater, than that of the air supply channel 7 together with its air inlet opening 9.
  • the wall 3 'of the housing 3 approaches the peripheral surface of the guide roller 4 so far that it forms a narrow Beer micströmkanal 11 together with her.
  • the arrangement of the suction device or the housing 3 as a hood over a guide or guide roller 1 is particularly advantageous and actually necessary for a good effect of the device, because this ensures that the course of the material web 2 is fixed, they can not flutter; the flow parameters remain the same regardless of the speed of movement of the web 2.
  • FIG. 2 largely corresponds to that of FIG. 1 with the difference that the direction of movement of the material web 2 tapered onto the guide roll 1 and the direction of movement of the material web 2 running away from the guide roll 1 form a right angle in their extensions;
  • the web 2 is on a shorter portion on the guide roller 1 and holds here when entering the housing 3 a distance from the peripheral surface of the guide roller 1, which is why the opening 4 of the housing 3 must be extended accordingly and the edge 6 of the opening 4 close lies in front of the material web 2.
  • the air discharge channel 8 is formed further than the air supply channel 7. This causes the air flowing through the air flow channel 11 at a relatively high speed to slow down and expand again while being pushed upwards. As a result, particles that are still on the material web 2 in this area can be lifted off, they land in the air flow and are transported away.
  • the expanded air discharge channel 8 can also have the consequence that because of the slowed flow velocity of the air, entrained therein particles drop prematurely and accumulate within or on the bottom of the air discharge channel 8. This can be avoided if, according to the embodiment according to FIG. 3, the air discharge channel 8 is not expanded, but its inside width is e.g. is equal to the air supply channel 7. Thus, a slowdown of the air flow in the air discharge channel 8 is avoided and the particles that are in the air stream are taken safely.
  • Fig. 4 shows a development of the embodiment of FIG. 2, which consists in that in the narrow Beer micströmkanal 11 between the peripheral surface of the guide roller 1 and guided around the guide roller 1 material web 2 and the wall 3 'of the housing 3 on the inside so-called vortex point 12 is provided; This may be a directed into the air passage 11 projection 12 or a recess or the like ..
  • Such a vortex point 12 causes the air flow is swirled in the air flow passage 11 and is brought closer to the surface of the material web 2 with higher energy, whereby the particles located in the laminar flow over the material web surface even safer dissolved and removed.
  • the inside width is of the air discharge channel 8 in turn larger than that of the air supply channel 7.
  • two vortex points 12 are provided in the air flow passage 11 on the housing inner wall, in order to increase the effect of turbulence in the air flow even more and make it more effective.
  • the clear width of the air discharge channel 8 is equal to that of the air supply channel 7 selected here.
  • the web guide corresponds to that of FIG. 2.
  • Fig. 6 shows an embodiment with only one fluidized point 12 in the air flow channel 11 with a web guide according to Fig. 1 and 3 and with the same clear width of the air supply channel 7 and air discharge channel 8. It should thus be clarified that one in the choice of the individual features The invention and its combination with each other is very free to adapt the device to different conditions and specifications can.
  • FIG. 7 shows the device according to FIG. 1 with an extended air discharge channel 8 but with a different guidance of the material web 2.
  • the material web 2 tapering onto the guide roll 1 and the material web 2 running away from it are guided parallel to one another.
  • Fig. 8 shows an embodiment with also parallel web guide, a housing 3 with an air supply channel 7 and an air discharge channel 8 of the same clear width and with two swirl points 12 on the housing inner wall in the air passage 11.
  • FIG. 9 shows a perspective view of the embodiment according to FIG. 1.
  • the longitudinal direction ie, in the direction of movement of a material web, not shown, through the edges 5 and 6 limited opening 4 in the bottom of the housing 3 illustrates, through which the guide roller 1 protrudes into the housing 3 and the air passageway 11 forms with the opposite housing wall.
  • the air discharge channel 8 is extended relative to the air supply channel 7.
  • FIG. 10 shows a perspective view of the embodiment according to FIG. 3 from a different angle.
  • Air supply channel 7 and air discharge channel 8 have the same clear width. Again, it should be made clear how the opening 4 in the bottom of the housing 3 in its length and thus at the same time in the direction of movement of a material web, not shown bounded by the edges 5 and 6 and these edges 5 and 6 hold only small distance to the lateral surface of the Guide roller 1 and the web 2.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Advancing Webs (AREA)
  • Cleaning In General (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
EP06024082A 2005-11-21 2006-11-21 Dispositif pour l'aspiration de particles résultantes des operations de manufacture sur les bandes en mouvement Not-in-force EP1787732B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005055312A DE102005055312A1 (de) 2005-11-21 2005-11-21 Absaugvorrichtung zur Entfernung von bei Bearbeitungen an bewegten Materialbahnen entstehenden Partikeln

Publications (2)

Publication Number Publication Date
EP1787732A1 true EP1787732A1 (fr) 2007-05-23
EP1787732B1 EP1787732B1 (fr) 2009-03-25

Family

ID=37763401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06024082A Not-in-force EP1787732B1 (fr) 2005-11-21 2006-11-21 Dispositif pour l'aspiration de particles résultantes des operations de manufacture sur les bandes en mouvement

Country Status (3)

Country Link
EP (1) EP1787732B1 (fr)
AT (1) ATE426464T1 (fr)
DE (2) DE102005055312A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006717A1 (fr) * 2021-07-29 2023-02-02 Voith Patent Gmbh Mécanisme d'aspiration de poussière sur un dispositif de coupe rotatif

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD135857A1 (de) * 1978-04-27 1979-06-06 Dieter Schmidt Vorrichtung zur kontaktlosen entfernung von verunreinigungen von warenbahnen
EP0520145A1 (fr) * 1991-06-25 1992-12-30 Eltex-Elektrostatik Gesellschaft mbH Dispositif pour l'élimination de la poussière
EP0682992A2 (fr) * 1994-05-16 1995-11-22 Valmet Paper Machinery Inc. Méthode et dispositif pour l'enlèvement et la collection de poussière séparée d'une bande pour une machine à papier ou une machine de finition du papier
WO2001076777A1 (fr) * 2000-04-06 2001-10-18 Koenig & Bauer Aktiengesellschaft Dispositif pour enlever la poussiere d'une bande de materiau

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126191A (en) * 1965-11-22 1968-09-05 Agfa Gevaert Nv Apparatus for the contactless removing of dust from webs
ES2137536T3 (es) * 1994-09-06 1999-12-16 Patent Consulting & Dev Gmbh Retiro de particulas de polvo de una pista de material con movimiento relativo.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD135857A1 (de) * 1978-04-27 1979-06-06 Dieter Schmidt Vorrichtung zur kontaktlosen entfernung von verunreinigungen von warenbahnen
EP0520145A1 (fr) * 1991-06-25 1992-12-30 Eltex-Elektrostatik Gesellschaft mbH Dispositif pour l'élimination de la poussière
EP0682992A2 (fr) * 1994-05-16 1995-11-22 Valmet Paper Machinery Inc. Méthode et dispositif pour l'enlèvement et la collection de poussière séparée d'une bande pour une machine à papier ou une machine de finition du papier
WO2001076777A1 (fr) * 2000-04-06 2001-10-18 Koenig & Bauer Aktiengesellschaft Dispositif pour enlever la poussiere d'une bande de materiau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006717A1 (fr) * 2021-07-29 2023-02-02 Voith Patent Gmbh Mécanisme d'aspiration de poussière sur un dispositif de coupe rotatif

Also Published As

Publication number Publication date
EP1787732B1 (fr) 2009-03-25
DE102005055312A1 (de) 2007-06-06
ATE426464T1 (de) 2009-04-15
DE502006003246D1 (de) 2009-05-07

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