US20080121770A1 - Device for Detachably Fixing a Holder for a Doctor Blade in a Paper Production Plant - Google Patents

Device for Detachably Fixing a Holder for a Doctor Blade in a Paper Production Plant Download PDF

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Publication number
US20080121770A1
US20080121770A1 US11/943,706 US94370607A US2008121770A1 US 20080121770 A1 US20080121770 A1 US 20080121770A1 US 94370607 A US94370607 A US 94370607A US 2008121770 A1 US2008121770 A1 US 2008121770A1
Authority
US
United States
Prior art keywords
bearing
support
doctor blade
holder
assembly according
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.)
Abandoned
Application number
US11/943,706
Other languages
English (en)
Inventor
Klaus Bartelmuss
Heinz Bartelmuss
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20080121770A1 publication Critical patent/US20080121770A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G3/00—Doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/041—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for positioning, loading, or deforming the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • B05C11/044—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades characterised by means for holding the blades

Definitions

  • the present invention relates to a device for detachably fixing a holder for a doctor blade, which is assigned to a supporting and guiding roll in a paper production plant, to a support.
  • the holder is mounted on the support such that it can be pivoted about an axis oriented at least approximately in the direction of the doctor edge bearing on the supporting or guiding roll.
  • the holder is formed by holding fingers which extend transversely with respect to the pivot axis and which are in each case constructed with a first bearing part which interacts with a second bearing part located on the support and, between the holder and the support, there is disposed at least one actuating element, by means of which the holding fingers can be pivoted independently of one another.
  • the supporting and guiding rolls are in each case assigned a doctor blade, which is brought into contact with the relevant supporting and guiding roll and by means of which contaminants located on the roll are doctored off the latter.
  • the holder of the doctor blade is constructed with a device for adjusting the angular position of the doctor blade with respect to the relevant roll. Since, moreover, the holder of the doctor blade often has to be replaced in order to be able to clean the latter and the doctor blade, there is also the need to construct the fixing of the holder for the doctor blade to the support for the holder in such a way that it can be released in the simplest possible way.
  • the holder for the doctor blade and the support of the holder are constructed with lugs projecting toward one other, which are formed with drilled holes assigned to one another, into which a bearing pin extending over the width of the wire is inserted.
  • the bearing pin is pulled out laterally.
  • the holder for the doctor blade can be removed from the support, that is to say lifted off, transversely with respect to the longitudinal direction of the bearing pin.
  • there is often the difficulty that, on account of the constructional configuration of the plant, the space required for a movement of the holder transversely with respect to its support is not available.
  • an assembly for mounting a doctor blade assigned to a supporting and guiding roll in a paper production plant comprising:
  • the holder being formed by a plurality of holding fingers extending transversely with respect to the pivot axis and each having a first bearing part interacting with a second bearing part on the support;
  • At least one actuating element disposed between the holder and the support for pivoting the holding fingers independently of one another;
  • one of the first and second bearing parts being formed by a bearing shell having a cutout formed therein, extending in the direction of the pivot axis, and the other of the first and second bearing parts being formed by a bearing pin carried by a web penetrating the cutout in the bearing shell, enabling the holder to be displaceable with respect to the support in the direction of the pivot axis over an entire length of the doctor blade.
  • one of the two bearing parts is formed by a bearing shell, which is formed with a cutout, in particular with a slot, extending in the direction of the pivot axis
  • the other bearing part is formed by a bearing pin which is carried by a web or the like penetrating the cutout in the bearing shell, which means that the holder can be displaced with respect to the support in the direction of the pivot axis over the entire length of the doctor blade.
  • each holding finger is formed with a separate bearing part, whereas the bearing part located on the support extends in one piece over the entire length of the doctor blade or is formed by individual sections of the bearing part located at a distance from one another.
  • each holding finger is assigned a bearing pin, which is fixed to the holding finger by means of a web or the like, and on the support there is provided a strip-like bearing shell extending over the length of the doctor blade, or a plurality of sections of the strip-like bearing shell are provided, the at least one bearing shell being formed with cutouts, in particular with slots, on its side assigned to the holding fingers.
  • a covering plate extending over all the holding fingers is also provided, is fixed to the holding fingers and bears on the edge of the doctor blade assigned to the holder.
  • the holding fingers can be formed with profiling used for the fixing of the doctor blade.
  • the holding fingers are each formed with a cutout, into which a strip projecting from the doctor blade can be inserted.
  • the holding fingers are formed as two-armed levers, which are mounted on the support in their central region, and the support for the holding fingers is constructed with a flexible covering element reaching over the holding fingers.
  • FIG. 1 is a side view of a device according to the invention
  • FIG. 2 is a perspective view of the novel device on an enlarged scale as compared with FIG. 1 ;
  • FIG. 3 is a perspective view of some constituent parts of the device according to FIG. 1 on a reduced scale as compared with FIG. 2 ;
  • FIGS. 4 , 4 a and 4 b are three separate perspective views illustrating the mounting of a constituent part of the device according to FIG. 1 on an enlarged scale as compared with the other figures.
  • FIG. 1 there is illustrated a supporting and guiding roll 1 , which is located in a paper production plant, underneath the wire, underneath the felt, or underneath the paper web.
  • the roll 1 is assigned a doctor blade 2 , which can be brought into contact with the surface of the roll 1 .
  • the orientation of the blade 2 is in a direction opposite to the direction of rotation of the roll 1 .
  • the doctor blade 2 is fixed to a holder 3 , which is formed by a large number of holding fingers 31 arranged beside one another and a covering plate 32 located above these.
  • the doctor blade 2 is formed with a strip 21 which projects into cutouts 33 provided at the ends of the holding fingers 31 .
  • the covering plate 32 which is screwed to the holding fingers 31 , all the holding fingers 31 are connected to one another to form a single structural unit.
  • the holder 3 for the doctor blade 2 can be pivoted with respect to a support 5 for the holder 3 by means of a bearing 4 on the support 5 .
  • a bearing 4 on the support 5 In order to adjust the pivoted position of the holder 3 with respect to the support 5 , between the support 5 and the holder 3 there are two actuating elements in the form of inflatable hoses 6 , by means of which the angular position of the holder 3 with respect to the support 5 can be adjusted.
  • a flexible covering element 51 is provided at the ends of the holder 3 and of the support 5 that face away from the doctor blade 2 .
  • the support 5 is located on a swinging arm 7 , which is fixed to a shaft 8 which extends in the axial direction of the roll 1 and which can be adjusted into a pivoted position by means of a tensioning rod 9 and can be fixed in this position.
  • FIG. 2 reveals the doctor blade 2 , the holder 3 for the doctor blade 2 with one of the holding fingers 31 and the covering plate 32 , the bearing 4 for the holder 2 on the support 5 , the actuating elements 6 and the covering element 51 .
  • FIG. 3 illustrates the support 5 with the holding fingers 31 mounted on the latter and the actuating elements 6 .
  • each holding finger 31 being formed with a bearing pin 41 .
  • the bearing pins 41 are mounted in bearing shells 42 fixed to the support 5 .
  • each bearing pin 41 can be assigned a separate bearing shell 42 or a plurality of bearing pins 41 can be assigned a common bearing shell 42 .
  • the cutouts 33 in the holding fingers 31 can be seen.
  • the bearing pins 41 located on the holding fingers 31 are fixed to the holding fingers 31 by means of a web 41 a in each case. Furthermore, the bearing pins 41 are assigned bearing shells 42 which are fixed to the support 5 and which, on their side facing the holding finger 31 , are formed with a slot 42 a . In this case, the clear width of the slot 42 a is somewhat greater than the thickness of the webs 41 a . On account of this formation of the bearing 4 , the holding fingers 31 can be displaced freely with respect to the support 5 in the axial direction of the bearing pins 41 .
  • the holder 3 with the holding fingers 31 and covering plate 32 and at the same time with the doctor blade 2 can be detached from the support 5 by being displaced axially with respect to the latter, without being removed from the latter transversely with respect to the axis of the bearing pins 41 , that is to say lifted off the latter.
  • the need to be able to remove the holder 3 for the doctor blade 2 from the support 5 for the holder 3 is met even if there is no space available to lift the holder 3 off the support 5 .

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  • Paper (AREA)
US11/943,706 2006-11-23 2007-11-21 Device for Detachably Fixing a Holder for a Doctor Blade in a Paper Production Plant Abandoned US20080121770A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1944/2006 2006-11-23
AT0194406A AT503922B1 (de) 2006-11-23 2006-11-23 Einrichtung zur lösbaren befestigung eines halters für eine schaberklinge in einer papiererzeugungsanlage

Publications (1)

Publication Number Publication Date
US20080121770A1 true US20080121770A1 (en) 2008-05-29

Family

ID=39032440

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/943,706 Abandoned US20080121770A1 (en) 2006-11-23 2007-11-21 Device for Detachably Fixing a Holder for a Doctor Blade in a Paper Production Plant

Country Status (7)

Country Link
US (1) US20080121770A1 (zh)
EP (1) EP1947239A3 (zh)
JP (1) JP2008127732A (zh)
CN (1) CN101187184A (zh)
AT (1) AT503922B1 (zh)
BR (1) BRPI0705801A (zh)
CA (1) CA2607453A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070187057A1 (en) * 2006-02-16 2007-08-16 Klaus Bartelmuss Device for detachably fixing a holder for a doctor blade in a paper production plant
EP2156899A1 (de) * 2008-08-08 2010-02-24 Voith Patent GmbH Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine bewegbare Materialbahn
EP2236667A3 (en) * 2009-03-31 2011-11-02 Runtech Systems Oy Apparatus and method for pivotal mounting of a doctor blade assembly in a paper machine
US8974638B2 (en) 2011-08-31 2015-03-10 Joh. Clouth Gmbh & Co. Kg Device for retaining doctor blades
US20180320314A1 (en) * 2017-05-03 2018-11-08 Oradoc S.R.L. Rigid and flexible doctor blade holder and system comprising a cylinder and a doctor blade holder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6202252B1 (en) * 1999-06-03 2001-03-20 Valmet Ltd. Doctoring apparatus
US6458247B1 (en) * 1999-04-15 2002-10-01 Metso Paper, Inc. Loading arrangement in a paper machine doctor
US20050223513A1 (en) * 2004-04-08 2005-10-13 Joh. Clouth Gmbh & Co. Kg Calibration device
US20060054293A1 (en) * 2002-11-08 2006-03-16 Helmut Strauch Scraper blade mounting device
US7108766B1 (en) * 1999-09-14 2006-09-19 Metso Paper, Inc. Doctor unit in a paper machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69028707D1 (de) * 1990-05-15 1996-10-31 Aikawa Iron Works Co Schaber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6458247B1 (en) * 1999-04-15 2002-10-01 Metso Paper, Inc. Loading arrangement in a paper machine doctor
US6202252B1 (en) * 1999-06-03 2001-03-20 Valmet Ltd. Doctoring apparatus
US7108766B1 (en) * 1999-09-14 2006-09-19 Metso Paper, Inc. Doctor unit in a paper machine
US20060054293A1 (en) * 2002-11-08 2006-03-16 Helmut Strauch Scraper blade mounting device
US20050223513A1 (en) * 2004-04-08 2005-10-13 Joh. Clouth Gmbh & Co. Kg Calibration device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070187057A1 (en) * 2006-02-16 2007-08-16 Klaus Bartelmuss Device for detachably fixing a holder for a doctor blade in a paper production plant
US7713384B2 (en) * 2006-02-16 2010-05-11 Klaus Bartelmuss Device for detachably fixing a holder for a doctor blade in a paper production plant
EP2156899A1 (de) * 2008-08-08 2010-02-24 Voith Patent GmbH Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine bewegbare Materialbahn
EP2236667A3 (en) * 2009-03-31 2011-11-02 Runtech Systems Oy Apparatus and method for pivotal mounting of a doctor blade assembly in a paper machine
US8974638B2 (en) 2011-08-31 2015-03-10 Joh. Clouth Gmbh & Co. Kg Device for retaining doctor blades
US20180320314A1 (en) * 2017-05-03 2018-11-08 Oradoc S.R.L. Rigid and flexible doctor blade holder and system comprising a cylinder and a doctor blade holder
US10633795B2 (en) * 2017-05-03 2020-04-28 Oradoc S.R.L. Rigid and flexible doctor blade holder and system comprising a cylinder and a doctor blade holder

Also Published As

Publication number Publication date
JP2008127732A (ja) 2008-06-05
CA2607453A1 (en) 2008-05-23
BRPI0705801A (pt) 2008-07-15
EP1947239A2 (de) 2008-07-23
CN101187184A (zh) 2008-05-28
EP1947239A3 (de) 2009-06-03
AT503922A4 (de) 2008-02-15
AT503922B1 (de) 2008-02-15

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE