WO2006088436A1 - Device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping breaker - Google Patents

Device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping breaker Download PDF

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Publication number
WO2006088436A1
WO2006088436A1 PCT/SK2006/000004 SK2006000004W WO2006088436A1 WO 2006088436 A1 WO2006088436 A1 WO 2006088436A1 SK 2006000004 W SK2006000004 W SK 2006000004W WO 2006088436 A1 WO2006088436 A1 WO 2006088436A1
Authority
WO
WIPO (PCT)
Prior art keywords
cord
rubberized fabric
stations
fabric cord
section
Prior art date
Application number
PCT/SK2006/000004
Other languages
French (fr)
Inventor
Peter MIHÁLIK
Viera SURIOVÁ
Miroslav ONDÁS
Original Assignee
Matador Rubber, S.R.O.
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 Matador Rubber, S.R.O. filed Critical Matador Rubber, S.R.O.
Priority to DE212006000019U priority Critical patent/DE212006000019U1/en
Publication of WO2006088436A1 publication Critical patent/WO2006088436A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0005—Pretreatment of tyres or parts thereof, e.g. preheating, irradiation, precuring
    • B29D2030/0011—Surface activation of tyres or parts thereof, e.g. by plasma treatment

Definitions

  • the invention concerns a device for preparing rubberized fabric cord which is used in radial tyre production, where the preparation of rubberized fabric cord is performed by means of rubberizing individual fabric threads, adhesion of which is modified by plasma application.
  • wound overlapping belt also called the spiral belt, as a part of the belt assembly, improves considerably the use properties of radial tyres.
  • the wound overlapping belt is actually a strip of rubberized fabric cord of a certain width (usually of 1 to 20 mm), which is in confection lines for tyre production spirally wound onto the preceding belt layers of the belt-tread assembly.
  • Positive effect of using the wound overlapping belt in a tyre demonstrates itself by decreasing tyre rolling resistance, increasing its highspeed performance and increasing steering performance and tyre life.
  • the very preparation of wound overlapping belt consists of rubberizing fabric cord and of subsequent operations. Nevertheless, before rubberizing it is necessary to treat the fabric cord chemically so, that it achieves sufficient adhesion necessary for the rubberizing process of good quality. Subsequently, the rubberized fabric cord is longitudinally slit to final width. Slitting is usually performed in two stages. Chemical treatment of the fabric cord is accompanied with considerable negative environmental effects, and it increases the total costs for wound overlapping belt preparation.
  • the fabric cord is rubberized, usually on a 4-cylinder rubberizing device.
  • the fabric cord entering a rubberizing device is chemically adhesively modified. Adhesion is necessary for perfect rubberizing process and the resulting qualitative properties of the rubberized fabric cord, as well as of the produced tyres.
  • the rubberized fabric cord is wound on reels which are introduced into the second stage.
  • the second stage consists of a further device - a slitting machine for slitting the rubberized fabric cord to a width of approximately 80 to 100 mm. After rubberizing, the rubberized fabric cord is wound on reels which are introduced into the third stage.
  • the reels with rubberized cord are subsequently slit in the third stage, which consists of a further slitting machine, where the slitting leads to final width of the wound overlapping belt, which is then wound on reels and subsequently used in confection lines.
  • a disadvantage of the above method of preparation of rubberized fabric cord for wound overlapping belt consists in higher production costs resulting from higher price of adhesively modified fabric cord, necessity of operating the respective devices, manipulation of material reels, higher energy demands, as well as negative environmental effects.
  • a further known device for preparing rubberized fabric cord makes use of one-stage method.
  • the device comprises unwinding stations for individual cord threads, an extruder, a slitter and winders.
  • Cord threads then enter the head of a transversely arranged extruder, where the strip of entering threads is rubberized.
  • Individual cord threads entering the rubberizing device are chemically adhesively modified. Adhesion is necessary for perfect rubberizing process and the resulting qualitative properties of the rubberized fabric cord. After rubberizing, the rubberized fabric cord is slit to final width, wound on reels and subsequently used in confection lines.
  • a disadvantage of the above method of preparing rubberized fabric cord consists in higher production costs resulting from higher price of adhesively modified cord threads, as well from its negative influence on the environment.
  • a solution for this problem is a device for preparing rubberized fabric cord, where the rubberized fabric cord is prepared using direct rubberizing fabric threads by means of a transversely arranged extruder, wherein adhesion of fabric threads is modified by plasma application before rubberizing.
  • the device consists of a section of unwinding stations for individual cord threads, a plasma unit, a transversely arranged rubberizing extruder, a cooling unit, a longitudinal slitting machine and a section of winding stations for the rubberized fabric cord.
  • the section of winding stations of the device according to the present invention may include equal or smaller number of stations for winding the rubberized fabric cord up than that of the section of unwinding stations for individual cord threads.
  • An advantage of the above device for preparing rubberized fabric cord, suitable to be used as wound overlapping belt, is the fact that using it there are achieved reduction of costs of the cord, reduction of energy costs, increase in effectiveness of the production process, reduction of tyre weight, as well as positive environmental effects.
  • the device for preparing rubberized fabric cord, suitable to be used as wound overlapping belt, used in radial tyre production according to the present invention is explained in more detail in the enclosed drawing, schematically showing the device for preparing rubberized fabric cord, used in radial tyre production, where the preparation of rubberized fabric cord is performed by means of rubberizing individual fabric threads, adhesion of which is modified by application of low-temperature plasma.
  • a device for preparing rubberized fabric cord, used in radial tyre production consists of section 1 of unwinding stations for individual cord threads, a plasma unit 2, a transversely arranged rubberizing extruder 3, a cooling unit 4, a longitudinal slitting machine 5 and a section 6 of winding stations for rubberized fabric cord.
  • cord threads are unwound from unwinding stations of section 1 and enter the plasma unit 2.
  • surface layer of the cord threads is modified using low-temperature plasma, resulting in creation of adhesion necessary for the subsequent rubberizing of cord threads.
  • cord threads with adhesive layer enter the head of a transversely arranged extruder 3, where they are rubberized by a rubber composition. Rubberized strip of fabric cord of a width of 40 mm proceeds to the cooling unit 4, where it is cooled.
  • the rubberized fabric cord is longitudinally slit into 4 parts with the final width, which is 10 mm in this case, in a slitting machine 5, and individual semi finished products of wound overlapping belts are wound on reels at the winding stations of section 6. Nominal speed of rubberizing was 25 m/min.
  • Method according to the present invention may be used in rubber industry in radial tyre production.

Abstract

Described is a device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping belt and used in radial tyre production, comprising section (1) of unwinding stations for individual cord threads, a plasma unit (2), a transversely arranged rubberizing extruder (3), a cooling unit (4), a longitudinal slitting machine (5) and a section (6) of winding stations for rubberized fabric cord.

Description

Device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping breaker
Technical Field
The invention concerns a device for preparing rubberized fabric cord which is used in radial tyre production, where the preparation of rubberized fabric cord is performed by means of rubberizing individual fabric threads, adhesion of which is modified by plasma application.
Background Art
In the process of radial tyre production, wound overlapping belt, also called the spiral belt, as a part of the belt assembly, improves considerably the use properties of radial tyres. The wound overlapping belt is actually a strip of rubberized fabric cord of a certain width (usually of 1 to 20 mm), which is in confection lines for tyre production spirally wound onto the preceding belt layers of the belt-tread assembly. Positive effect of using the wound overlapping belt in a tyre demonstrates itself by decreasing tyre rolling resistance, increasing its highspeed performance and increasing steering performance and tyre life.
The very preparation of wound overlapping belt consists of rubberizing fabric cord and of subsequent operations. Nevertheless, before rubberizing it is necessary to treat the fabric cord chemically so, that it achieves sufficient adhesion necessary for the rubberizing process of good quality. Subsequently, the rubberized fabric cord is longitudinally slit to final width. Slitting is usually performed in two stages. Chemical treatment of the fabric cord is accompanied with considerable negative environmental effects, and it increases the total costs for wound overlapping belt preparation.
Devices, known so far, for preparing rubberized fabric cord, suitable for the wound overlapping belt production, use a three-stage production method for the wound overlapping belt. First, the fabric cord is rubberized, usually on a 4-cylinder rubberizing device. The fabric cord entering a rubberizing device is chemically adhesively modified. Adhesion is necessary for perfect rubberizing process and the resulting qualitative properties of the rubberized fabric cord, as well as of the produced tyres. After rubberizing, the rubberized fabric cord is wound on reels which are introduced into the second stage.
The second stage consists of a further device - a slitting machine for slitting the rubberized fabric cord to a width of approximately 80 to 100 mm. After rubberizing, the rubberized fabric cord is wound on reels which are introduced into the third stage.
The reels with rubberized cord are subsequently slit in the third stage, which consists of a further slitting machine, where the slitting leads to final width of the wound overlapping belt, which is then wound on reels and subsequently used in confection lines.
A disadvantage of the above method of preparation of rubberized fabric cord for wound overlapping belt consists in higher production costs resulting from higher price of adhesively modified fabric cord, necessity of operating the respective devices, manipulation of material reels, higher energy demands, as well as negative environmental effects.
A further known device for preparing rubberized fabric cord makes use of one-stage method. The device comprises unwinding stations for individual cord threads, an extruder, a slitter and winders. Cord threads then enter the head of a transversely arranged extruder, where the strip of entering threads is rubberized. Individual cord threads entering the rubberizing device are chemically adhesively modified. Adhesion is necessary for perfect rubberizing process and the resulting qualitative properties of the rubberized fabric cord. After rubberizing, the rubberized fabric cord is slit to final width, wound on reels and subsequently used in confection lines.
A disadvantage of the above method of preparing rubberized fabric cord consists in higher production costs resulting from higher price of adhesively modified cord threads, as well from its negative influence on the environment.
A solution for this problem is a device for preparing rubberized fabric cord, where the rubberized fabric cord is prepared using direct rubberizing fabric threads by means of a transversely arranged extruder, wherein adhesion of fabric threads is modified by plasma application before rubberizing.
Disclosure of Invention The above disadvantages of the devices for preparing rubberized fabric cord used in radial tyre production are eliminated by the technical solution of the device according to the present invention, the nature of which consists in that the device consists of a section of unwinding stations for individual cord threads, a plasma unit, a transversely arranged rubberizing extruder, a cooling unit, a longitudinal slitting machine and a section of winding stations for the rubberized fabric cord.
The section of winding stations of the device according to the present invention may include equal or smaller number of stations for winding the rubberized fabric cord up than that of the section of unwinding stations for individual cord threads.
Individual adhesively unmodified cord threads are unwound from the unwinding stations and enter the plasma unit. In the plasma unit, surface layer of the cord threads is modified using low-temperature plasma, which results in an increase of adhesion necessary for the subsequent rubberizing of cord threads. After exiting the plasma unit, the adhesive surface treated cord threads enter the head of a transversely arranged extruder, where they are rubberized by a rubber composition. The rubberized strip of fabric cord of an appropriate width proceeds to a cooling unit, where it is cooled. Subsequently, the rubberized fabric cord is longitudinally slit to final width and individual strips of the rubberized fabric cord are wound on reels at the winding stations.
An advantage of the above device for preparing rubberized fabric cord, suitable to be used as wound overlapping belt, is the fact that using it there are achieved reduction of costs of the cord, reduction of energy costs, increase in effectiveness of the production process, reduction of tyre weight, as well as positive environmental effects.
Overview of pictures in the drawing
The device for preparing rubberized fabric cord, suitable to be used as wound overlapping belt, used in radial tyre production according to the present invention, is explained in more detail in the enclosed drawing, schematically showing the device for preparing rubberized fabric cord, used in radial tyre production, where the preparation of rubberized fabric cord is performed by means of rubberizing individual fabric threads, adhesion of which is modified by application of low-temperature plasma.
An example of invention embodiment
A device for preparing rubberized fabric cord, used in radial tyre production, consists of section 1 of unwinding stations for individual cord threads, a plasma unit 2, a transversely arranged rubberizing extruder 3, a cooling unit 4, a longitudinal slitting machine 5 and a section 6 of winding stations for rubberized fabric cord.
Individual adhesively unmodified cord threads are unwound from unwinding stations of section 1 and enter the plasma unit 2. In the plasma unit 2, surface layer of the cord threads is modified using low-temperature plasma, resulting in creation of adhesion necessary for the subsequent rubberizing of cord threads. After exiting the plasma unit 2, cord threads with adhesive layer enter the head of a transversely arranged extruder 3, where they are rubberized by a rubber composition. Rubberized strip of fabric cord of a width of 40 mm proceeds to the cooling unit 4, where it is cooled. Subsequently, the rubberized fabric cord is longitudinally slit into 4 parts with the final width, which is 10 mm in this case, in a slitting machine 5, and individual semi finished products of wound overlapping belts are wound on reels at the winding stations of section 6. Nominal speed of rubberizing was 25 m/min.
Industrial applicability
Method according to the present invention may be used in rubber industry in radial tyre production.

Claims

P A T E N T C L A I M S
1. Device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping belt and used in radial tyre production, characterized i n t h a t it comprises section (1) of unwinding stations for individual cord threads, a plasma unit (2), a transversely arranged rubberizing extruder (3), a cooling unit (4), a longitudinal slitting machine (5) and a section (6) of winding stations for rubberized fabric cord.
2. Device according to claim 1, characterized in that section (6) of winding stations has equal number of stations for winding up rubberized fabric cord as section (1) of unwinding stations for individual cord threads.
3. Device according to claim 1, characterized in that section (6) of winding stations is equipped with smaller number of stations for winding up rubberized fabric cord than section (1) of unwinding stations for individual cord threads.
PCT/SK2006/000004 2005-02-18 2006-02-15 Device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping breaker WO2006088436A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212006000019U DE212006000019U1 (en) 2005-02-18 2006-02-15 Apparatus for making rubberized textile cord suitable for use as a wound overlapping intermediate construction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SK5013-2005A SK50132005A3 (en) 2005-02-18 2005-02-18 Device for preparing rubbered fabric cord suitable for use as a wound breaker overlay
SKPP5013-2005 2005-02-18

Publications (1)

Publication Number Publication Date
WO2006088436A1 true WO2006088436A1 (en) 2006-08-24

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ID=36555413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2006/000004 WO2006088436A1 (en) 2005-02-18 2006-02-15 Device for manufacturing rubberized fabric cord, suitable to be used as wound overlapping breaker

Country Status (4)

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DE (1) DE212006000019U1 (en)
RU (1) RU72699U1 (en)
SK (1) SK50132005A3 (en)
WO (1) WO2006088436A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008022833A1 (en) * 2006-08-25 2008-02-28 Continental Aktiengesellschaft Method for the production of tire structure components provided with different reinforcing elements in a device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104364071A (en) * 2012-06-01 2015-02-18 米其林集团总公司 Method for treating a textile reinforcement element with plasma
FR2991344B1 (en) * 2012-06-01 2017-01-13 Michelin & Cie PROCESS FOR TREATING A TEXTILE PLASMA REINFORCING ELEMENT
CN111746014A (en) * 2020-06-01 2020-10-09 江阴市澳星电气有限公司 High-quality cord fabric production line

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902083A (en) * 1955-03-03 1959-09-01 Nat Standard Co Method of manufacturing tire beads
DE1275766B (en) * 1959-12-07 1968-08-22 Bridgestone Tire Co Ltd Tape made of wires or strands overmoulded with a rubber mixture for the production of inserts for pneumatic vehicle tires
US3778329A (en) * 1970-01-06 1973-12-11 Steelastic Co Reinforced tire fabric of helically formed,laterally spaced,single filament wires
GB2053026A (en) * 1979-07-06 1981-02-04 Wertheimer M R Microwave plasma modification of surface properties in organic polymers
EP1172476A1 (en) * 1999-12-27 2002-01-16 Fuji Seiko Co. Ltd. Rubber coated strand, belt, ply, tire using it, production device and method for them
US6550507B1 (en) * 1997-06-06 2003-04-22 Michelin Recherche Et Technique S.A. Thermotropic aromatic polyester(amide) monofilament
US20030096095A1 (en) * 2001-10-08 2003-05-22 Abdallah David G. Reinforced ply material with untwisted sets of steel monofilaments
EP1491365A2 (en) * 2003-06-27 2004-12-29 The Goodyear Tire & Rubber Company Polyester cords and their use in runflat tires

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902083A (en) * 1955-03-03 1959-09-01 Nat Standard Co Method of manufacturing tire beads
DE1275766B (en) * 1959-12-07 1968-08-22 Bridgestone Tire Co Ltd Tape made of wires or strands overmoulded with a rubber mixture for the production of inserts for pneumatic vehicle tires
US3778329A (en) * 1970-01-06 1973-12-11 Steelastic Co Reinforced tire fabric of helically formed,laterally spaced,single filament wires
GB2053026A (en) * 1979-07-06 1981-02-04 Wertheimer M R Microwave plasma modification of surface properties in organic polymers
US6550507B1 (en) * 1997-06-06 2003-04-22 Michelin Recherche Et Technique S.A. Thermotropic aromatic polyester(amide) monofilament
EP1172476A1 (en) * 1999-12-27 2002-01-16 Fuji Seiko Co. Ltd. Rubber coated strand, belt, ply, tire using it, production device and method for them
US20030096095A1 (en) * 2001-10-08 2003-05-22 Abdallah David G. Reinforced ply material with untwisted sets of steel monofilaments
EP1491365A2 (en) * 2003-06-27 2004-12-29 The Goodyear Tire & Rubber Company Polyester cords and their use in runflat tires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008022833A1 (en) * 2006-08-25 2008-02-28 Continental Aktiengesellschaft Method for the production of tire structure components provided with different reinforcing elements in a device

Also Published As

Publication number Publication date
SK50132005A3 (en) 2006-09-07
DE212006000019U1 (en) 2007-11-08
RU72699U1 (en) 2008-04-27

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