EP0089106A2 - Appareil pour couper et défibrer - Google Patents

Appareil pour couper et défibrer Download PDF

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Publication number
EP0089106A2
EP0089106A2 EP83300399A EP83300399A EP0089106A2 EP 0089106 A2 EP0089106 A2 EP 0089106A2 EP 83300399 A EP83300399 A EP 83300399A EP 83300399 A EP83300399 A EP 83300399A EP 0089106 A2 EP0089106 A2 EP 0089106A2
Authority
EP
European Patent Office
Prior art keywords
disk
housing
prongs
cutter
wall
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
EP83300399A
Other languages
German (de)
English (en)
Other versions
EP0089106B1 (fr
EP0089106A3 (en
Inventor
Curt George Joa
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.)
Joa Curt G Inc
Original Assignee
Joa Curt G Inc
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 Joa Curt G Inc filed Critical Joa Curt G Inc
Publication of EP0089106A2 publication Critical patent/EP0089106A2/fr
Publication of EP0089106A3 publication Critical patent/EP0089106A3/en
Application granted granted Critical
Publication of EP0089106B1 publication Critical patent/EP0089106B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
    • D21B1/066—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being pulp sheets
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/32—Hammer mills

Definitions

  • This invention relates to a machine for reducing sheets of wood pulp to discrete fibers. Wads of such fibers are pleasingly white and are used, for example, as an absorbent material in disposable diapers, sanitary napkins and the like.
  • a disk type fiberizer apparatus such as the one described in U.S. Patent No. 3,538,551, particulated or fiberized soft wood pulp efficiently and with a satisfactory degree of fineness.
  • the patented fiberizer has a multiplicity of pointed pins extending axially from one face of a disk that is rotated at high speed. The sheets of wood pulp are fed through a slot in the disk housing and into the pointed rotating pins which break off fragments of the pulp sheet and reduce them to fibrous particles as they are being centrifuged radially outwardly from the center of the disk.
  • An object of the present invention is to provide a fiberizer apparatus that is distinguished by its ability to fiberize hard wood pulp without having to be taken out of service for maintenance at frequent intervals.
  • Another object of the invention is to provide a fiberizer that divides hard wood pulp into long discrete filaments or fibers while at the same time produces a minimum of short fibers or dust in the batting product.
  • Still another object is to provide a fiberizer that has elements in a single housing for chipping fiber particles from the end of a pulp sheet, reducing the particles at one stage subsequent to their being segregated from the sheet and then further milling the particles to reduce them to discrete fibers whereupon they are centrifuged through a a screen for further reducing their compactness.
  • the fiberizer includes a housing comprised of a generally circular wall 10 that has a channel shaped cross-section and is closed on its sides by means of a front wall 11 and a rear wall 12.
  • a housing comprised of a generally circular wall 10 that has a channel shaped cross-section and is closed on its sides by means of a front wall 11 and a rear wall 12.
  • the radius of outer wall 10 of the housing increases so it has an involute shape.
  • the radius of outer wall 10 of the housing decreases so it has an involute shape.
  • the housing has an output port 17 from which the fibers are evacuated or discharged.
  • the front wall 11 of the housing is provided with a slot 18 for feeding a sheet or web or dry hard pulp into the housing for processing.
  • FIGURE 1 shows that the slot 18 is a chord of the generally circular housing and that the chord is radially displaced from the center of the housing.
  • FIGURE 2 shows some schematically represented guide plates 19 between which there is a gap 20 through which the sheet of hard wood pulp is fed through the slot into the housing along a plane coincident with that of the arrow 21.
  • a pair of driven friction rollers 22 and 23 are used for pushing the pulp sheet through the slot into the housing.
  • Roller 23 has a pinion 24 on its shaft which engages another pinion 25 on the shaft of roller 22.
  • the shaft of roller 24 has a sprocket 26 on it for being driven with a chain 26' which is shown fragmentarily.
  • a pneumatic cylinder not shown, is provided for pressing upper roller 22 down yieldingly to create the necessary force for driving pulp sheets of various thicknesses through the slot 18.
  • a shaft 30 extends through an air intake opening 31 in the rear wall 12 of the housing.
  • One of the bearing blocks 32, in which shaft 30 is journaled, is shown as being mounted on a base member 33. There are actually two bearing blocks but one has been omitted from the drawing.
  • a screw 30' in wall 11 acts as a safety stop which precludes shaft 30 from ever shifting-so much that rotating and stationary parts would collide.
  • the shaft has a v-pulley 34 on it to facilitate driving it rotationally with belts 35.
  • the shaft has a hub 36 fastened to it and a rotor or disk assembly 37 is fastened to the hub for the disk to rotate in a plane that parallels the front 11 and rear 12 walls of the housing.
  • a circular brake plate 27 is fastened to a shaft 30 and it rotates between brake linings 28 and 29 which are forced toward each other to create friction on the plate for decelerating the high speed disk 37 to a stop when driving power is removed from pulley 34.
  • the disk or rotor 37 is shown in isolation from the hub 36 and in more detail in FIGURES 3 and 4 although it is partly visible in FIGURES 1 and 5 as well.
  • the disk 37 is provided with holes 38, arranged in a circle, for permitting it to be fastened to the hub 36 with machine screws, not shown.
  • the disk has a plurality of equiangularly spaced radially extending bars 39 fastened to the face 40 of the disk that is presented toward front wall 11 of the housing.
  • Each of the bars 39 are secured to the front face 40 of the disk with several cap screws 41. Because the bars are subjected to high centrifugal force, it is desirable to further secure them with keys, such as the one marked 42 which engages complementarity in keyways in the bars and the disk.
  • bars 39 have a row of axially extending cutter prongs 43 formed on them.
  • the prongs desirably have a square cross section and flat exposed ends.
  • the bars, and, hence, the prongs are made of hardened steel or other especially hard metal.
  • the prongs in each bar constitute a radially extending row of prongs 43. Since the bar and prongs rise above the face of the disk, they serve as vanes for centrifuging particles of pulp, that are broken away from the end of the sheet by the prongs, radially outwardly beyond the periphery of the disk which is a desirable characteristic for enhancing the fiber communiting process.
  • prongs in a radial row should have some space between them.
  • the heads of the cap screws 41 that secure the cutter prong bars to the disk are exposed on the rear of the disk.
  • the heads of the cap screws are provided with a diametral hole, not visible, and a wire, not shown, is fed through all of the holes to limit the amount by which the cap screws could turn out if they should become loosened during use of the apparatus.
  • a plurality of hammer members 45 are anchored equiangularly about the periphery of the disk 37.
  • the hammer members as shown in FIGURE 3, have dovetail bases 46 which fit into complementarily shaped slots in the periphery of disk 37 to assure that the hammer members will not be centrifuged out at the high rotational speed of the disk.
  • the hammer members are secured against axial withdrawal from the dovetail slots by screwst which pass through holes marked 47 in FIGURE 4.
  • the breaker hammers orbit at high peripheral velocity with disk 37 and about its center.
  • the cutter prongs 43 on bars 39 project towards the end of the pulp sheet 21 that is being fed through slot 18 into the fiberizer.
  • a pair of bar-like cutter blades 50 and 51 are held by screws to the front wall 11 of the housing.
  • the cutter bars or blades 50 have teeth or serrations 52 on their faces that are presented toward the prongs 43 on the rotating cutter bars.
  • the stationary cutter blades 50 and 51 extend chordally above and below the chordally extending pulp sheet infeed slot 18.
  • the rotating prongs and stationary serrated blades coact to reduce fragments of pulp that are broken from the end of the pulp sheet.
  • a breaker segment 55 having a circumferential array of teeth or serrations 56 is fastened in the top of the generally circular housing wall 10.
  • the breaker segment 55 extends substantially from the location marked 15 in the rotational direction of the disk clockwise in FIGURE 1 to the approximate location marked 16.
  • the breaker segment 55 extends over an arc of about 90° in this design.
  • the breaker segment has a width substantially equal to the distance between the front and rear walls 11 and 12 of the housing.
  • the toothed breaker segment 55 has an involute shape corresponding to that of the housing. In one region 57 there is a substantial radial distance between the faces of the hammer members 45 and the teeth or serrations in the breaker segment 55. Because of the involute shape, the hammers 45 get closer and closer to the serrations of the breaker segment in the direction of rotation of the disk but the hammers never_contact the breaker teeth as is evident from inspection of FIGURE 1.
  • a metal band 60 constituting a screen is arranged in the fiberizer housing substantially concentric to rotating disk 37.
  • the screen has a plurality of holes 61 through which the segregated fibers are projected by. the centrifugal force of the components on disk 37 and under the influence of the fanning effect they create.
  • the screen band has sufficient width to extend from the front wall 11 to the rear wall 12 of the fiberizer housing.
  • the screen has several metal tubes 62 welded to it. As shown in FIGURE 2, bolts 63 extend through the metal tubes for anchoring the screen.
  • screen holes 61 have a diameter of 3/8 of an inch. In the illustrated embodiment, screen 60 subtends an arc of about 180°.
  • one of the curved ends 64 of the screen is in contact with the inside of outer wall 10 of the housing.
  • housing 10 starts to take on an involute shape where the lead line for the reference nuneral 13 is applied and this involute shape terminates where the lead line for reference numeral 14 is applied.
  • This develops between screen 60 and housing wall 10 a region 65 having an increasingly large radial dimension that is in reality a fluff conducting channel that leads to exit port 17 through which the fluffed fibers are withdrawn.
  • Screen 60 is effective to cause breakup of any agglomerates of fibers that pass through its holes.
  • the fiber fluff comes out of the fiberizer in a highly homogeneous state insofar as its density is concerned.
  • screen 60 extends from its starting point 64 in the clockwise direction in FIGURE 1 to its other curved end 66 which abuts one end of the toothed breaker segment 55.
  • a sheet of hard wood pulp is driven through slot 13 under the influence of rollers 22 and 23.
  • the end of the pulp sheet encounters the rotating staggered and axially extending cutter prongs which break fragments of the pulp from the end of the sheet.
  • the fragments are further divided by the coaction of the rapidly moving prongs and the stationary serrated cutter blades 50 and 51.
  • the material is centrifuged radially outwardly for being further broken down by the interaction of the rotating hammers 45 and stationary breaker segment 55 which is in the nature of a milling action.
  • the now finely-divided fibers are carried around and projected through screen 60 into involute channel 65 where the fluffy material becomes more influenced by the suction provided at discharge port 17.
  • the fluffy material is then conducted, by means, not shown, to a dispenser, not shown, which deposits measured quantities of the material on a continuous backing sheet that is used to form diapers by methods well known in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Paper (AREA)
EP19830300399 1982-03-15 1983-01-26 Appareil pour couper et défibrer Expired EP0089106B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35813982A 1982-03-15 1982-03-15
US358139 1982-03-15

Publications (3)

Publication Number Publication Date
EP0089106A2 true EP0089106A2 (fr) 1983-09-21
EP0089106A3 EP0089106A3 (en) 1984-08-22
EP0089106B1 EP0089106B1 (fr) 1987-04-01

Family

ID=23408459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830300399 Expired EP0089106B1 (fr) 1982-03-15 1983-01-26 Appareil pour couper et défibrer

Country Status (4)

Country Link
EP (1) EP0089106B1 (fr)
CA (1) CA1190078A (fr)
DE (1) DE3370670D1 (fr)
ES (1) ES520559A0 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9603752B2 (en) 2010-08-05 2017-03-28 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic cuff defect correction
US9622918B2 (en) 2006-05-18 2017-04-18 Curt G. Joe, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US9907706B2 (en) 2011-02-25 2018-03-06 Curt G. Joa, Inc. Methods and apparatus for forming disposable products at high speeds with small machine footprint
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US9950439B2 (en) 2007-02-21 2018-04-24 Curt G. Joa, Inc. Single transfer insert placement method and apparatus with cross-direction insert placement control
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10456302B2 (en) 2006-05-18 2019-10-29 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles
US11737930B2 (en) 2020-02-27 2023-08-29 Curt G. Joa, Inc. Configurable single transfer insert placement method and apparatus

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195684A (en) * 1992-05-06 1993-03-23 Curt G. Joa, Inc. Screenless disk mill
US8417374B2 (en) 2004-04-19 2013-04-09 Curt G. Joa, Inc. Method and apparatus for changing speed or direction of an article
US7703599B2 (en) 2004-04-19 2010-04-27 Curt G. Joa, Inc. Method and apparatus for reversing direction of an article
US20050230037A1 (en) 2004-04-20 2005-10-20 Curt G. Joa, Inc. Staggered cutting knife
US7708849B2 (en) 2004-04-20 2010-05-04 Curt G. Joa, Inc. Apparatus and method for cutting elastic strands between layers of carrier webs
US7638014B2 (en) 2004-05-21 2009-12-29 Curt G. Joa, Inc. Method of producing a pants-type diaper
US7811403B2 (en) 2005-03-09 2010-10-12 Curt G. Joa, Inc. Transverse tab application method and apparatus
US8007484B2 (en) 2005-04-01 2011-08-30 Curt G. Joa, Inc. Pants type product and method of making the same
US7770712B2 (en) 2006-02-17 2010-08-10 Curt G. Joa, Inc. Article transfer and placement apparatus with active puck
US9433538B2 (en) 2006-05-18 2016-09-06 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web and formation of articles using a dual cut slip unit
US8016972B2 (en) 2007-05-09 2011-09-13 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US7780052B2 (en) 2006-05-18 2010-08-24 Curt G. Joa, Inc. Trim removal system
US8172977B2 (en) 2009-04-06 2012-05-08 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
PL1961403T3 (pl) 2007-02-21 2022-10-17 Curt G. Joa, Inc. Sposób i urządzenie do rozmieszczania wkładki z pojedynczym przeniesieniem
US8398793B2 (en) 2007-07-20 2013-03-19 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations
US9387131B2 (en) 2007-07-20 2016-07-12 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automated threading and re-threading of web materials
US8182624B2 (en) 2008-03-12 2012-05-22 Curt G. Joa, Inc. Registered stretch laminate and methods for forming a registered stretch laminate
US8673098B2 (en) 2009-10-28 2014-03-18 Curt G. Joa, Inc. Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US8460495B2 (en) 2009-12-30 2013-06-11 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8663411B2 (en) 2010-06-07 2014-03-04 Curt G. Joa, Inc. Apparatus and method for forming a pant-type diaper with refastenable side seams
US8656817B2 (en) 2011-03-09 2014-02-25 Curt G. Joa Multi-profile die cutting assembly
USD684613S1 (en) 2011-04-14 2013-06-18 Curt G. Joa, Inc. Sliding guard structure
US8820380B2 (en) 2011-07-21 2014-09-02 Curt G. Joa, Inc. Differential speed shafted machines and uses therefor, including discontinuous and continuous side by side bonding
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703712S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD704237S1 (en) 2013-08-23 2014-05-06 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703711S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum communication structure
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
WO2019104240A1 (fr) 2017-11-22 2019-05-31 Extrusion Group, LLC Ensemble embout de matrice et procédé de fusion-soufflage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT145411B (de) * 1933-07-12 1936-04-25 Raccolta A G Verfahren und Vorrichtungen zur kontinuierlichen Herstellung von mit kurzfaserigem Vlies Gefüllten Kissen.
US3538551A (en) * 1968-05-15 1970-11-10 Curt G Joa Disc type fiberizer
DE3026205A1 (de) * 1979-07-12 1981-01-29 Kimberly Clark Co Verfahren zum zerfasern von in stapeln angeordneten faserstoffboegen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT145411B (de) * 1933-07-12 1936-04-25 Raccolta A G Verfahren und Vorrichtungen zur kontinuierlichen Herstellung von mit kurzfaserigem Vlies Gefüllten Kissen.
US3538551A (en) * 1968-05-15 1970-11-10 Curt G Joa Disc type fiberizer
DE3026205A1 (de) * 1979-07-12 1981-01-29 Kimberly Clark Co Verfahren zum zerfasern von in stapeln angeordneten faserstoffboegen

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9622918B2 (en) 2006-05-18 2017-04-18 Curt G. Joe, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US10456302B2 (en) 2006-05-18 2019-10-29 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US10266362B2 (en) 2007-02-21 2019-04-23 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US9950439B2 (en) 2007-02-21 2018-04-24 Curt G. Joa, Inc. Single transfer insert placement method and apparatus with cross-direction insert placement control
US10702428B2 (en) 2009-04-06 2020-07-07 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US9603752B2 (en) 2010-08-05 2017-03-28 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic cuff defect correction
USRE48182E1 (en) 2010-08-05 2020-09-01 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic cuff defect correction
US9907706B2 (en) 2011-02-25 2018-03-06 Curt G. Joa, Inc. Methods and apparatus for forming disposable products at high speeds with small machine footprint
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles
US9908739B2 (en) 2012-04-24 2018-03-06 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US11034543B2 (en) 2012-04-24 2021-06-15 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10494216B2 (en) 2015-07-24 2019-12-03 Curt G. Joa, Inc. Vacuum communication apparatus and methods
US10633207B2 (en) 2015-07-24 2020-04-28 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US11737930B2 (en) 2020-02-27 2023-08-29 Curt G. Joa, Inc. Configurable single transfer insert placement method and apparatus

Also Published As

Publication number Publication date
DE3370670D1 (en) 1987-05-07
ES8403059A1 (es) 1984-03-01
EP0089106B1 (fr) 1987-04-01
CA1190078A (fr) 1985-07-09
EP0089106A3 (en) 1984-08-22
ES520559A0 (es) 1984-03-01

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