EP0052350B1 - Procédé de renforcement de lisière de bande - Google Patents

Procédé de renforcement de lisière de bande Download PDF

Info

Publication number
EP0052350B1
EP0052350B1 EP81109650A EP81109650A EP0052350B1 EP 0052350 B1 EP0052350 B1 EP 0052350B1 EP 81109650 A EP81109650 A EP 81109650A EP 81109650 A EP81109650 A EP 81109650A EP 0052350 B1 EP0052350 B1 EP 0052350B1
Authority
EP
European Patent Office
Prior art keywords
reinforcing element
spirals
band
undulations
reinforcing
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
EP81109650A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0052350A1 (fr
Inventor
Maurice Gauthier
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.)
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Original Assignee
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels 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 COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA filed Critical COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Priority to AT81109650T priority Critical patent/ATE13776T1/de
Publication of EP0052350A1 publication Critical patent/EP0052350A1/fr
Application granted granted Critical
Publication of EP0052350B1 publication Critical patent/EP0052350B1/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

Definitions

  • the present invention relates to a method of reinforcing the edge of a strip consisting of spirals assembled together by their overlapping or by joining rods in which a reinforcing element is introduced at the edge of the strip which is supported on the ends of the spirals.
  • the ends of the joining rods are used to make the reinforcement and a selvedge wire is added thereto.
  • the method according to the invention does not have this drawback is characterized in that said element consists of a wire consisting of a series of the worst or of undulations of which at least one turn or undulation is introduced inside each spiral according to their axial direction.
  • said edge of the strip parallel to the longitudinal axis. It is thus possible to catch up with the edges of the strips which, because of the variations in the stresses during assembly and / or thermofixing, are not very straight.
  • the method according to the invention allows a rectification of the edges which obviously does not allow the known method using the ends of the rods as reinforcing elements.
  • the positioning of the reinforcing element inside the spirals of the strip is further reinforced by coating the edge of the strip over a width L greater than the penetration of the turns of the reinforcing element.
  • a conveyor belt 1 consists of spirals 2 and 3 arranged in the transverse direction relative to the longitudinal axis of the belt. These spirals 2 and 3 formed respectively in the right direction D and the left direction G are assembled by joining rods 5 made of synthetic material for example.
  • the edge of the strip is cut straight parallel to the longitudinal axis.
  • the ends of the cut spirals are at the same level as the end of the rod 5 connecting the spirals.
  • the turns of a reinforcing spiral 10 are introduced inside the spirals in the channel left free and at the edge of the strip.
  • the bottom 11 of a loop of the reinforcing spiral is applied against the ends e i spirals of the strip and e 2 of the junction ring.
  • the turns 12 of the reinforcing spiral 10 are maintained inside the spirals 2, 3 of the strip by friction against these spirals.
  • an additional reinforcement of the selvedge is obtained by introducing a reinforcing wire 13 into the bottom 11 of the reinforcement turns, between the ends e 1 of the spirals of the strip and the reinforcement spiral 10.
  • the positioning of the reinforcement element 10 inside the spirals 2 and 3 of the strip is further reinforced by coating the edge 18 of the strip over a width L greater than the penetration of the spirals 12 of the reinforcement element 10 (fig 7).
  • the width of the turns 12 of the reinforcing element 10 must be sufficient for them to penetrate well inside the selvedges 18, a width of 20 mm is suitable.
  • the steps of the turns 12 depend on the number of spirals 2 and 3 joined in the longitudinal direction of the strip.
  • the thickness of the turns 12 of the reinforcing element 10 depends on the space available inside the spirals 2 and 3 of the strip. Too much thickness prevents its introduction into the spirals of the strip. Too small a thickness will not block the reinforcing element 10 inside the spirals of the strip.
  • the reinforcing element 10 may consist of monofilaments, multifilaments, impregnated braids, metallic threads. It can be covered with multifilament threads. It can be flocked to improve the adhesion of the selvedge impregnation adhesive.
  • reinforcement element 10 of the selvedges can take different forms.
  • FIG. 3 represents a variant in which the reinforcing element has a shape having pronounced undulations in a zigzag or accordion folding.
  • FIG. 5 represents a variant in which the reinforcing element comprises turns 19 of unequal lengths in each spiral of the strip to facilitate their introduction into the selvedges.
  • an additional reinforcement wire 13 can be introduced at the bottom 11 of the reinforcement coil, in a longitudinal direction, to improve the quality of the reinforcement.
  • This wire can be a monofilament, a multifilament, a single or twisted or cabled fabric thread, a chain.
  • FIG. 6 shows a variant of FIG. 2 in which a chain stitch reinforcement 20 connects the turns of the reinforcement element on the selvedge side; the chain, the meshes of which are formed around the spiral wires of the reinforcing element, acts as a reinforcement and maintains the correct spacing between the turns of the reinforcing element.
  • Each turn of the reinforcing element can be distant from the previous one by a value equal to the pitch of the spirals of the strip in the longitudinal direction.
  • the strip can consist of spirals assembled together by their nesting without the use of rods.
  • the reinforcing element 10 which is introduced into the spirals 2 and 3 at the edge of the strip, is supported only on the ends e, of the turns cut from the spirals.

Landscapes

  • Reinforcement Elements For Buildings (AREA)
  • Wire Processing (AREA)
  • Package Frames And Binding Bands (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Belt Conveyors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paper (AREA)
  • Decoration Of Textiles (AREA)
EP81109650A 1980-11-19 1981-11-12 Procédé de renforcement de lisière de bande Expired EP0052350B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109650T ATE13776T1 (de) 1980-11-19 1981-11-12 Verfahren zum verstaerken der raender eines bandes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8024531 1980-11-19
FR8024531A FR2494320A1 (fr) 1980-11-19 1980-11-19 Procede et dispositif de renforcement de lisiere de bande

Publications (2)

Publication Number Publication Date
EP0052350A1 EP0052350A1 (fr) 1982-05-26
EP0052350B1 true EP0052350B1 (fr) 1985-06-12

Family

ID=9248125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109650A Expired EP0052350B1 (fr) 1980-11-19 1981-11-12 Procédé de renforcement de lisière de bande

Country Status (5)

Country Link
EP (1) EP0052350B1 (enExample)
AT (1) ATE13776T1 (enExample)
DE (1) DE3170953D1 (enExample)
ES (1) ES269283Y (enExample)
FR (1) FR2494320A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315696A1 (de) * 1983-04-29 1984-10-31 Württembergische Filztuchfabrik D. Geschmay GmbH, 7320 Göppingen Gliederband, z.b. fuer die papierherstellung
DE3501981A1 (de) * 1985-01-22 1986-07-24 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Spiralgliederband mit geschuetzten kanten
DE3914533A1 (de) * 1989-05-02 1990-11-08 Heimbach Gmbh Thomas Josef Band fuer papiermaschinen
DE3914534C1 (enExample) * 1989-05-02 1990-10-18 Thomas Josef Heimbach Gmbh & Co, 5160 Dueren, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH610273A5 (en) * 1975-10-02 1979-04-12 Munzinger Conrad & Cie Ag Flat formation acting as a wire link conveyor

Also Published As

Publication number Publication date
EP0052350A1 (fr) 1982-05-26
FR2494320B1 (enExample) 1982-11-26
ATE13776T1 (de) 1985-06-15
ES269283U (es) 1983-08-01
ES269283Y (es) 1984-02-16
FR2494320A1 (fr) 1982-05-21
DE3170953D1 (en) 1985-07-18

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