EP0020600B1 - Procede d'alimentation de defibreurs avec de la pate en feuilles livree en balles - Google Patents

Procede d'alimentation de defibreurs avec de la pate en feuilles livree en balles Download PDF

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Publication number
EP0020600B1
EP0020600B1 EP79901573A EP79901573A EP0020600B1 EP 0020600 B1 EP0020600 B1 EP 0020600B1 EP 79901573 A EP79901573 A EP 79901573A EP 79901573 A EP79901573 A EP 79901573A EP 0020600 B1 EP0020600 B1 EP 0020600B1
Authority
EP
European Patent Office
Prior art keywords
sheet
sheets
belt
feeding process
angle
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.)
Expired
Application number
EP79901573A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0020600A1 (fr
Inventor
Pierre Laplanche
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.)
Kaysersberg SA
Original Assignee
Beghin Say SA
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 Beghin Say SA filed Critical Beghin Say SA
Publication of EP0020600A1 publication Critical patent/EP0020600A1/fr
Application granted granted Critical
Publication of EP0020600B1 publication Critical patent/EP0020600B1/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
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/26—Driving or feeding arrangements
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding

Definitions

  • the present invention relates to a process for feeding shredders with sheet pulp delivered in bales.
  • the object of the present invention is to design a new method of feeding a shredder with pulp in sheets delivered in bales, which ensures regular feeding with relatively simple means.
  • the rectangular sheets are placed one behind the other on a feed belt with their longitudinal axis offset by an angle ⁇ relative to the direction of advancement of the belt, each sheet partially covering its neighbor, then at least a lateral part of each sheet is folded down by folding along a fold line parallel to the direction of advancement of the carpet, the exact superimposition of the simple thickness parts of the neighboring sheets with the parts doubled by folding making it possible to obtain a cross-section ply constant.
  • rectangular sheet is meant both square sheets for which the present invention remains applicable.
  • the angle a is 45 ° and two identical lateral parts of each sheet are folded down by folding along said fold lines parallel to the direction of advance of the belt.
  • the sheets are buried on the feed belt, that is to say that two successive sheets partially overlap.
  • the angle ⁇ is 45 ° and the folded side parts may not be identical.
  • the sheets are not buried until after the lateral parts of the sheets have been folded and every other sheet has been rotated. It has been found that the sudden entrainment of the width tail occurs when it is in the "downstream" position of the other sheets as a function of the working direction of the defibration tool (bottom sheet for a defibration tool working by moving down).
  • the sheets will preferably be buried one under the other successively on the feeding belt, and the side parts will be folded down by pivot lie up. In this way, the "tails" are found in the upper part.
  • the fold line is the bisector of the foremost angle of the rectangular sheet, and it is also necessary to rotate one sheet of two by 180 ° C before forming the sheet of constant section.
  • the method comprises, in addition to the deposition of the sheets on a carpet, the formation of the folds and the actual folding, an inversion of one sheet of two to superimpose the parts of simple thickness. According to the present variant, it is a real reversal and not a simple 180 ° rotation of the sheet in its plane.
  • the distance x defined above will separate the sheets of successive "even rank” and will be equal to the distance between the sheets of successive "odd rank".
  • an offset equal to x / 2 will be chosen between the two sets of sheets, which will make it possible to deposit the sheets on the feed belt with a constant offset.
  • the process is mainly illustrated in the diagrammatic drawing of FIG. 3.
  • the reference 1 is a feeding belt for a shredder 2.
  • a bale 3 of paper pulp in rectangular sheets is arranged with its longitudinal axis corresponding to the length of the sheets , directed towards the feeding belt and making an angle of 45 ° with the advancement direction of the latter.
  • a second dough ball 4 has been represented with its transverse axis, corresponding to the width of the sheets, directed towards the feed belt and offset by 45 ° with respect to the direction of advance of this last.
  • the arrangement of the second dough ball makes it possible to carry out the operation of feeding the shredder without any interruption, the gripping of the sheets on the ball 4 being done automatically after exhaustion of the ball 3 and vice versa.
  • the sheets are distributed individually by a vacuum gripping system.
  • two suction cups 3a, respectively 4a grip the upper sheet of the bale towards its "front” angles in the direction of the dispensing movement according to the arrow f3, respectively f4, to place them in the "enthilées" position on the carpet d 'food.
  • Interfacing can be done in two ways, either one after the other, or one after the other.
  • the interlining is preferably done in the second way.
  • the sheet is taken up into abutment by centering and pushing tabs referenced 7.
  • FIG. 1 represents a rectangular sheet folded according to the method of the invention.
  • the reference 8 in FIG. 3 schematically represents the packing station where the folds are carried out.
  • the accuracy of the distribution rate can be obtained by any suitable means of known type, such as photoelectric detection for example.
  • x L / ⁇ 2 where L is the length of the rectangular sheet.
  • the quantity of pulp treated is very regular and equal to the consistency of the weight of the sheets, at the entrance, in and at the exit of the defibrator, which simplifies the regular formation of the mattresses. fiber.
  • the reference 9 ( Figure 3) schematically represents a presser roller path.
  • the sheets are separated from each other by a distance equal to x / 2.
  • the successive "even rank” sheets 10a, 10c form a two-ply sheet, similar to that shown in the drawing in FIG. 2.
  • the successive "odd rank” sheets 10b, 10d form a second sheet identical to the first.
  • the whole constitutes a tablecloth with four thicknesses.
  • the two plies are advantageously formed in the drawing of FIG. 4 using a regular offset equal to half the distance x.
  • the direction of the fold lines does not extend by 45 ° relative to the longitudinal direction of the sheet.
  • the angle a which allows a folding corresponding to the definition of the invention.
  • a is the ratio dimensions of the rectangle.
  • the ratio is, by definition, greater than 1.
  • the width P of the folded rectangular sheet is equal, under these conditions, to:

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Paper (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Pens And Brushes (AREA)
  • Crushing And Grinding (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Electrotherapy Devices (AREA)
  • Dowels (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP79901573A 1978-12-22 1980-07-01 Procede d'alimentation de defibreurs avec de la pate en feuilles livree en balles Expired EP0020600B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7836080 1978-12-22
FR7836080A FR2444748A1 (fr) 1978-12-22 1978-12-22 Procede d'alimentation d'un defibreur

Publications (2)

Publication Number Publication Date
EP0020600A1 EP0020600A1 (fr) 1981-01-07
EP0020600B1 true EP0020600B1 (fr) 1982-10-27

Family

ID=9216434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79901573A Expired EP0020600B1 (fr) 1978-12-22 1980-07-01 Procede d'alimentation de defibreurs avec de la pate en feuilles livree en balles

Country Status (14)

Country Link
US (1) US4384708A (enrdf_load_stackoverflow)
EP (1) EP0020600B1 (enrdf_load_stackoverflow)
JP (1) JPS55501060A (enrdf_load_stackoverflow)
AT (1) ATE1717T1 (enrdf_load_stackoverflow)
BE (1) BE880553A (enrdf_load_stackoverflow)
CA (1) CA1123247A (enrdf_load_stackoverflow)
DE (1) DE2963957D1 (enrdf_load_stackoverflow)
DK (1) DK155841C (enrdf_load_stackoverflow)
ES (1) ES487219A1 (enrdf_load_stackoverflow)
FI (1) FI69127C (enrdf_load_stackoverflow)
FR (1) FR2444748A1 (enrdf_load_stackoverflow)
IT (1) IT1119629B (enrdf_load_stackoverflow)
NO (1) NO151794C (enrdf_load_stackoverflow)
WO (1) WO1980001290A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540895B1 (fr) * 1983-02-15 1986-01-24 Beghin Say Sa Procede pour raccourcir des fibres textiles, notamment des dechets de coton blanchi, fibres obtenues par ce procede et application de celles-ci en tant que matelas absorbant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767860A (en) * 1929-07-18 1930-06-24 Fort Howard Paper Co Roll of interleaved sheets
US2688414A (en) * 1952-04-12 1954-09-07 Eastman Kodak Co Sheet pulp feeder
US3382778A (en) * 1966-02-01 1968-05-14 Tension Envelope Corp Method and apparatus for interleaving inserts during the envelope making process
US3701522A (en) * 1969-08-15 1972-10-31 Tzu Chiang Chi Process for folding sheet material and packaged dispensers therefor
US4081305A (en) * 1974-03-01 1978-03-28 Compagnie Des Etablissements De La Risle Multi-layer article and a process and an apparatus for its manufacture
US4118832A (en) * 1976-09-13 1978-10-10 Scott Paper Company Method for minimizing the accumulation of static charges on fibers resulting from fiberization of pulp lap sheets

Also Published As

Publication number Publication date
FR2444748B1 (enrdf_load_stackoverflow) 1981-05-22
FI794026A7 (fi) 1980-06-23
FI69127C (fi) 1985-12-10
FR2444748A1 (fr) 1980-07-18
FI69127B (fi) 1985-08-30
IT7969462A0 (it) 1979-12-21
DK155841C (da) 1989-10-02
DK353180A (da) 1980-08-15
NO151794B (no) 1985-02-25
JPS55501060A (enrdf_load_stackoverflow) 1980-12-04
IT1119629B (it) 1986-03-10
DK155841B (da) 1989-05-22
NO151794C (no) 1985-06-05
DE2963957D1 (en) 1982-12-02
US4384708A (en) 1983-05-24
EP0020600A1 (fr) 1981-01-07
BE880553A (fr) 1980-04-01
CA1123247A (fr) 1982-05-11
ES487219A1 (es) 1980-09-16
ATE1717T1 (de) 1982-11-15
NO794233L (no) 1980-06-24
WO1980001290A1 (fr) 1980-06-26

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