EP0112432A2 - Bande, notamment une bande de tamisage respectivement une bande à chaînons, pour machines à papier et similaires - Google Patents

Bande, notamment une bande de tamisage respectivement une bande à chaînons, pour machines à papier et similaires Download PDF

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Publication number
EP0112432A2
EP0112432A2 EP83103624A EP83103624A EP0112432A2 EP 0112432 A2 EP0112432 A2 EP 0112432A2 EP 83103624 A EP83103624 A EP 83103624A EP 83103624 A EP83103624 A EP 83103624A EP 0112432 A2 EP0112432 A2 EP 0112432A2
Authority
EP
European Patent Office
Prior art keywords
coils
flat
structure according
wire
head
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
EP83103624A
Other languages
German (de)
English (en)
Other versions
EP0112432A3 (en
EP0112432B1 (fr
Inventor
Wolfgang Bachmann
Dieter Spahn
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.)
Asten Inc
Original Assignee
Roda Holding Anstalt
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 Roda Holding Anstalt filed Critical Roda Holding Anstalt
Priority to AT83103624T priority Critical patent/ATE30932T1/de
Publication of EP0112432A2 publication Critical patent/EP0112432A2/fr
Publication of EP0112432A3 publication Critical patent/EP0112432A3/de
Application granted granted Critical
Publication of EP0112432B1 publication Critical patent/EP0112432B1/fr
Expired 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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0072—Link belts
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/90—Papermaking press felts
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/903—Paper forming member, e.g. fourdrinier, sheet forming member
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249922—Embodying intertwined or helical component[s]

Definitions

  • the invention relates to a flat structure, preferably to a screen belt or link belt for paper machines or the like. with a large number of coils made of elastic plastic or metal wire, which consist of opposing winding legs and head arches connecting them, in the interstices of which one head arc of the adjacent coil is inserted so far that an overlap area arises between the two coils, in which a Plug wire made of plastic or metal is arranged.
  • the wire coils have a tension spring-like pretension in such a way that the respectively adjacent wire coils are in contact with one another.
  • Such a wire link belt is intended to maintain its dimensions elastically, in particular in the transverse direction. Furthermore, the technical progress of such a wire link belt is seen in that its manufacture is simplified by the fact that The coils inevitably fit into one another and cling to one another, so that complex devices can be avoided and that the connecting means no longer have to be stiff and heavy.
  • the coils have no tension spring-like pretension and that the wire of the coils is torsion-free. This is intended to increase the lifespan of the fabric and ensure freedom from marking.
  • the fabric has an extremely high air permeability. This is sometimes desirable, but in paper making it often causes the paper to flutter.
  • sealing rails or sheet metal inserts are also used in the last-mentioned flat structures, which are introduced in the longitudinal direction in the coils or in the spaces between adjacent winding legs.
  • the present invention has for its object to provide a fabric of the type described, which has the advantages Easier to manufacture from round wire helices with the advantages of large contact surfaces and good heat transfer and a limited air permeability.
  • the coils can be joined together to form flat structures just as easily - often even more easily - than coils made of round wire.
  • Only a spiral size needs to be provided for the automatic production of the flat structures on production (joining) machines. In other words: Practically all automatic manufacturing (joining) machines can easily produce flat structures with only one coil size.
  • the spaces between the individual winding legs can be made larger or smaller as required. Not only are advantageous large flat receiving surfaces of the supporting winding legs obtained, but also an air flow of the desired strength, without the disadvantageous use of fillers between the winding legs or within the coils.
  • the heat transfer for example from calender rolls through the sheet to the paper, also improves.
  • the new sheet-like structure is designed in such a way that the turns of the coils opposite the turns of the coils, which have the flat bearing surfaces, have a round, oval or triangular cross-section.
  • the air permeability is only influenced by the load-bearing winding legs.
  • a further possible variation of the air permeability with a good support for the paper results from the fact that both winding legs of the coils connected to a head bend each have flat contact surfaces. As a result, the air flow is opposed to a greater resistance than in the first embodiment.
  • the wires of the head arches of the coils have a substantially round, oval, triangular or rectangular cross-section, at most squeezed in relation to their original shape, and the winding legs, which have flat contact surfaces, have an almost rectangular cross-section.
  • One is in the Able to provide fabrics that meet all the requirements placed on them with regard to their assembly, their flexibility, their air permeability, their contact surfaces and their heat transfer from calender rolls to paper.
  • the sheetlike structures according to the invention are characterized in one embodiment in that the width of the turn legs having a flat contact surface is up to twice as large as the wire diameter or the wire width of the head bends.
  • the helixes of the new flat structure are wound on division, in such a way that the helixes have a tension spring-like pretension, but the fixed space between their head arches is larger than their wire diameter or wire width. As a result, the head arches of adjacent coils do not lie against one another, even though the coils as such have a tension spring tension.
  • the coils are alternately clockwise or counterclockwise coils.
  • all coils of the flat structures can also be right-hand or left-hand coils.
  • the coils can be stored in collecting containers before they are manufactured, without interlocking with one another.
  • the turn legs form an angle different from 90 ° with the plug wires, whereas the head arches of the coils form an angle of approximately 90 ° with the plug wires.
  • the plug wires are preferably made of steel wire, so that the flat structures can be pulled apart to a greater or lesser extent via the spikes, for example in order to vary the passage of air.
  • the plug wires can also be made of plastic. As a result of the elasticity of the individual coils, the fabrics can be reduced to their original length as required.
  • the edge fastenings of some flat structures according to the invention also have reinforcements for attacking claws.
  • FIG. 1 shows a schematic overview drawing, in which a partial section of a flat structure generally designated 1 is shown.
  • the flat structure itself which is only shown in the cutout, can have any length and width.
  • the two vertical lines in the middle of the illustration are intended to indicate this schematically.
  • the flat structure consists of individual helices 2, which can be right-handed, for example, like the helix 3 or left-handed, like the helix 4.
  • Adjacent coils themselves are made of elastic plastic or metal wire in a manner not of interest in connection with the present invention. As shown in FIG. 10, they consist of load-bearing turn legs 7 and turn legs 8 lying opposite them. The turn legs are connected to one another by means of head bends 17.
  • FIG. 1 shows that there are 17 spaces 18 between the individual head arches, into each of which a head arch of the adjacent coils is inserted.
  • an overlap area 24, in which the plug wire 25 is inserted is created between two adjacent coils, as can be seen in FIG.
  • the head arches 17 of adjacent coils together with the plug wire 25 form an articulated hinge-like connection.
  • the plug wire 25, like the material of the coils, can be made of plastic or metal.
  • the supporting winding legs 7 lying on top in the plan view according to FIG. 1 have flat support surfaces 12, the width 13 of which is greater than the wire diameter 23 or the wire width 23a of the head bends 17.
  • the space 18 between adjacent head arches 17 is larger than the wire diameter 23 or the wire width 23a of the head arches.
  • FIG. 2 shows that opposite winding legs 8 run below the supporting winding legs 7, which, in contrast to the contact surfaces 12, can have a round cross section 9a or a triangular cross section 9b.
  • the opposite winding legs 10 can also have rectangular cross sections 11.
  • Figure 2 shows that the opposite winding legs 10 can also have a rectangular cross section 11.
  • the wire from which the coils 3 or 4 are made is an elastic plastic or metal wire 5, the diameter 6 of which in some exemplary embodiments of the invention is approximately the same as the diameter of the head arches 17.
  • the opposite winding legs 10 can also have flat contact surfaces 12 in particular exemplary embodiments of the invention.
  • the flat contact surfaces 12 have a width 13 and edges 14, between which distances 16 are arranged.
  • the flat structure consists of left-hand and right-hand helixes 4 and 3. It can be seen that the head arches of adjacent helixes do not in principle lie against one another as a result of a tension similar to a spiral spring. This is because the coils 2, 3, 4 are wound on division and that they have a tension spring-like bias such that the fixed space 18 between their head arches 17 is larger than their wire diameter 23 or their wire width 23a.
  • the wires 22 of the head arches 17 (FIG. 8) of the coils 2, 3, 4 have an essentially round cross section 20, an oval cross section 20a, a triangular cross section 20b or a rectangular cross section 20c, which is at best crimped against their original shape, as indicated by position 21 in Figure 7. Irrespective of the shape of the wires of the head bends, the turn legs 7 and 10 having flat contact surfaces 12 have an almost rectangular cross section 11.
  • the width 13 of the flat contact surfaces can be up to twice as large as the wire diameter 23 or the wire width 23a of the head bends 17.
  • FIG. 3 shows an embodiment in which the coils 2 are all left-handed coils 4.
  • FIG. 4 shows an exemplary embodiment in which all the coils 2 are right-handed coils 3.
  • the embodiment of Figure 4 shows that the edges 14 of adjacent planar contact surfaces 12 lie close together. According to the embodiment of Figure 3, a distance 16 is provided between the edges 14.
  • the design of the width 13 of the flat contact surfaces 12 and the resulting spacing 16 between the flat contact surfaces 12 make it possible, for example, to vary the air flow passing through the fabrics during paper production.
  • FIG. 5 shows an exemplary embodiment in which the winding legs 7 and the opposite winding legs 8 and 10, not shown, form an angle ⁇ different from 90 ° with the plug wires 25, whereas the head arches 17 of the spirals 2, 3, 4 form an angle p of approximately Take 90 °.
  • This design of the flat structure allows the passage area for the air to be provided with an even smaller cross section than in the other exemplary embodiments.
  • FIG. 6 shows that the load-bearing winding legs 7 have an almost rectangular cross section 11, as a result of which flat support surfaces 12 are created.
  • the width 13 of these load-bearing winding legs 7 is dimensioned according to FIG. 6 such that a distance is maintained between the edges 14. This distance is fixed.
  • the opposite winding legs 8 have a round cross section 20 according to FIG.
  • the load-bearing turn legs 7 and the opposite turn legs 10 both have rectangular cross sections 11.
  • the head arches 17, on the other hand, have a squeezed cross-section 21, which may also have resulted from an oval, triangular or rectangular base cross-section 20a, 20b, 20c.
  • the schematic representation according to FIG. 8 reveals details of the dimensions once again.
  • the head arches 17 have outer edges 19.
  • the total distance between these outer edges 19 is designated 32. It is given by the double wire diameter 23 or the double wire width 23a of the head bends 17, the diameter 26 of the plug wire 25 and by the play 27 between the head bends 17 and the plug wire 25. As a result of this play, the hinge effect between adjacent coils is possible.
  • 24 denotes the so-called overlap region, which is given by the diameter 26 of the plug wire 25 and by the play 27 between the plug wire 25 and the head arches 17.
  • 33 is the distance from the inner edge of a head bow referred to the outer edge 19 of the opposite head bow.
  • Figures 9 and 10 show further details of the fabric with cross sections 11 of the head arches 17, which are rectangular and cross sections 9a and 9b, which are oval or triangular. Which wire or head bow cross-section is used in detail depends on the desired type of use of the fabric.
  • the head arches 17 are somewhat crushed during the manufacture of the coils. As a result of subsequent fixing of the coils, in most exemplary embodiments they have the oval shape according to FIG. 10.
  • FIG. 1 reveals special features of an embodiment.
  • the edge fastenings 28 are necessary in order to permanently fix the width of the flat structures.
  • Eyelets 29 and mandrels 30 are indicated on the right side of FIG. 1, whereas reinforcements 31 can be arranged in the edge fastenings 28 on the left side of FIG.
  • the flat structures can be pulled apart as required, especially if the plug wires 25 are made of metal, as a result of which the passage of air through the flat structure can be varied as desired.
  • barbs 34 are provided.
  • the tabs 35 into which mandrels can also be inserted for pulling the flat structures apart during operation, have securing holes 36 which ensure their secure fit within the edge fastenings 28 made of plastic.

Landscapes

  • Paper (AREA)
  • Wire Processing (AREA)
  • Woven Fabrics (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Package Frames And Binding Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Toys (AREA)
  • Lubricants (AREA)
  • Packaging Frangible Articles (AREA)
  • Ropes Or Cables (AREA)
  • Semiconductor Lasers (AREA)
  • Led Devices (AREA)
  • Tents Or Canopies (AREA)
EP19830103624 1982-11-25 1983-04-14 Bande, notamment une bande de tamisage respectivement une bande à chaînons, pour machines à papier et similaires Expired EP0112432B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83103624T ATE30932T1 (de) 1982-11-25 1983-04-14 Flaechengebilde, vorzugsweise siebband bzw. gliederband fuer papiermaschinen o.dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3243512 1982-11-25
DE3243512A DE3243512C2 (de) 1982-11-25 1982-11-25 Endloses Siebband für Papiermaschinen o.dgl.

Publications (3)

Publication Number Publication Date
EP0112432A2 true EP0112432A2 (fr) 1984-07-04
EP0112432A3 EP0112432A3 (en) 1986-02-05
EP0112432B1 EP0112432B1 (fr) 1987-11-19

Family

ID=6178936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830103624 Expired EP0112432B1 (fr) 1982-11-25 1983-04-14 Bande, notamment une bande de tamisage respectivement une bande à chaînons, pour machines à papier et similaires

Country Status (15)

Country Link
US (1) US4606792A (fr)
EP (1) EP0112432B1 (fr)
JP (1) JPS59150194A (fr)
AT (1) ATE30932T1 (fr)
AU (1) AU566033B2 (fr)
BR (1) BR8306469A (fr)
CA (1) CA1220062A (fr)
DD (1) DD211593A5 (fr)
DE (1) DE3243512C2 (fr)
ES (1) ES285016Y (fr)
FI (1) FI76854C (fr)
NO (1) NO159398C (fr)
NZ (1) NZ205926A (fr)
RO (1) RO88975A (fr)
SU (1) SU1389688A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171891A1 (fr) * 1984-08-10 1986-02-19 Asten Group, Inc. Tissu laminé pour papeterie en hélices combinées avec une surface molle
EP0195835A1 (fr) * 1985-03-26 1986-10-01 Asten Group, Inc. Bande de tamisage sans fin pour machines à papier ou similaires
EP0763623A1 (fr) * 1995-09-16 1997-03-19 Thomas Josef Heimbach GmbH & Co. Bande à chainons en particulier pour des machines à papier

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8302118D0 (en) * 1983-01-26 1983-03-02 Scapa Porritt Ltd Link belts
US4746546A (en) * 1985-03-26 1988-05-24 Asten Group, Inc. Method of forming endless wire belt for paper machines or the like
FI905601A0 (fi) * 1989-03-14 1990-11-13 Green Bay Packaging Inc Foerfarande och apparatur foer tvaettning av cellulosamassa.
DE4026196A1 (de) * 1990-08-18 1992-02-20 Heimbach Gmbh Thomas Josef Sieb zur anwendung bei der papierfabrikation
CN100580177C (zh) * 2003-11-10 2010-01-13 阿尔巴尼国际公司 透明缝合螺旋物
RU2408756C2 (ru) * 2005-08-31 2011-01-10 Олбэни Интернэшнл Корп. Спиральнопетелевая ткань с улучшенной гибкостью
US10689807B2 (en) * 2013-03-14 2020-06-23 Albany International Corp. Industrial fabrics comprising infinity shape coils

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419751C3 (de) * 1974-04-24 1982-01-21 Kerber, geb. Poth, Hella, 6731 Weidenthal Drahtgliederband z.B. für Papiermaschinen
US3915202A (en) * 1974-05-03 1975-10-28 Albany Int Corp Fourdrinier papermaking belts
US4290209A (en) * 1978-05-17 1981-09-22 Jwi Ltd. Dryer fabric
NL7903176A (nl) * 1979-04-23 1980-10-27 Johannes Lefferts Werkwijze voor het vervaardigen van een zeefband, bij- voorbeeld een zeefband voor een papiermachine.
DE3021562C1 (de) * 1980-06-07 1981-12-10 EHVAK Maschinen GmbH, 6050 Offenbach Verfahren und Vorrichtung zum Zusammenfuegen von Wendeln aus Metalldraht bzw. Kunststoffdraht zu Flaechengebilden
US4395308A (en) * 1981-06-12 1983-07-26 Scapa Dyers Inc. Spiral fabric papermakers felt and method of making
DE8129837U1 (de) * 1981-10-13 1982-05-19 EHVAK Maschinen GmbH, 6050 Offenbach "flaechengebilde aus zusammengefuegten, vorzugsweise abgeflachten wendeln aus metall bzw. kunststoffdraht"

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171891A1 (fr) * 1984-08-10 1986-02-19 Asten Group, Inc. Tissu laminé pour papeterie en hélices combinées avec une surface molle
EP0195835A1 (fr) * 1985-03-26 1986-10-01 Asten Group, Inc. Bande de tamisage sans fin pour machines à papier ou similaires
EP0763623A1 (fr) * 1995-09-16 1997-03-19 Thomas Josef Heimbach GmbH & Co. Bande à chainons en particulier pour des machines à papier
DE19534486C1 (de) * 1995-09-16 1997-03-27 Heimbach Gmbh Thomas Josef Gliederband insbesondere für Papiermaschinen
US5810159A (en) * 1995-09-16 1998-09-22 Thomas Josef Heimbach Gmbh & Co. Link conveyor especially for paper-making machines

Also Published As

Publication number Publication date
DE3243512A1 (de) 1984-07-05
NO159398C (no) 1988-12-21
NZ205926A (en) 1986-12-05
EP0112432A3 (en) 1986-02-05
ES285016Y (es) 1986-12-16
EP0112432B1 (fr) 1987-11-19
BR8306469A (pt) 1984-06-26
AU566033B2 (en) 1987-10-08
FI76854B (fi) 1988-08-31
AU2167283A (en) 1984-05-31
DE3243512C2 (de) 1985-05-15
SU1389688A3 (ru) 1988-04-15
DD211593A5 (de) 1984-07-18
NO834062L (no) 1984-05-28
RO88975A (fr) 1986-04-30
FI834055A0 (fi) 1983-11-04
FI76854C (fi) 1988-12-12
JPS62277B2 (fr) 1987-01-07
CA1220062A (fr) 1987-04-07
JPS59150194A (ja) 1984-08-28
ES285016U (es) 1986-05-01
NO159398B (no) 1988-09-12
FI834055L (fi) 1984-05-26
ATE30932T1 (de) 1987-12-15
US4606792A (en) 1986-08-19

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