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WO2000035667A1 - Systeme d'enroulement du talon d'un pneu sans guirlande - Google Patents

Systeme d'enroulement du talon d'un pneu sans guirlande Download PDF

Info

Publication number
WO2000035667A1
WO2000035667A1 PCT/US1999/006815 US9906815W WO0035667A1 WO 2000035667 A1 WO2000035667 A1 WO 2000035667A1 US 9906815 W US9906815 W US 9906815W WO 0035667 A1 WO0035667 A1 WO 0035667A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
sheave
rotation
bead
reel
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.)
Ceased
Application number
PCT/US1999/006815
Other languages
English (en)
Inventor
Kevin Razy
Robert W. Kolb
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.)
Bartell Machinery Systems LLC
Original Assignee
Bartell Machinery Systems LLC
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 Bartell Machinery Systems LLC filed Critical Bartell Machinery Systems LLC
Priority to AU34551/99A priority Critical patent/AU3455199A/en
Publication of WO2000035667A1 publication Critical patent/WO2000035667A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • 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
    • 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
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • 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

Definitions

  • the present invention relates to systems for applying a coating to metal wire and winding the coated wire into a tire bead. More specifically, the invention relates to novel and improved bead winding systems which permit alternate starting and stopping of paying off wire from a supply reel during the winding operation, thereby eliminating the need for the usual vertical festoon which accumulates a supply of wire while the winding drum is stopped between the end of one winding cycle and the beginning of the next.
  • a supply reel of bare wire is mounted upon a let-off stand for free rotation about a horizontal axis.
  • Wire is pulled from the reel by a motor-driven capstan about which the wire passes after passing through an extruder which applies a rubberized coating to the wire, i.e. , the extruder is positioned between the supply reel and the capstan.
  • the capstan operates continuously, at a substantially fixed speed, during the winding operation, although the winding drum which operates to wind the wire into a bead must stop after completion of each winding cycle to permit removal of the completed bead and restarted after preparing for a new cycle.
  • the winding system of the present invention includes an electric motor for rotating the supply reel to pay off wire.
  • a pair of sheave tacks are mounted on the same frame structure as the supply reel to provide a compact accumulator for a relatively small amount of wire.
  • a line through the axes of the two sheave stacks is at an acute angle to the horizontal, placing one stack at a higher vertical position than the other, although the stacks are not arranged in vertically aligned relation, as in typical prior art festoon apparatus .
  • the axis of rotation of the sheave stack at the higher elevation is stationary, the axis of the lower sheave stack being linearly movable toward and away from the axis of the other stack.
  • the lower sheave stack is connected to the cable of an air motor, i.e., to opposite sides of the piston of a pneumatic cylinder.
  • a manually operable throttle valve between the source of compressed air and the piston is set so that the air motor exerts a substantially constant force urging the lower sheave stack away from the upper stack, thereby providing a desired wire tension.
  • a potentiometer formed by a stationary strip of conducting metal on the frame contacted by a wiper arm movable with the lower sheave stack provides a feedback signal which varies the speed of the motor driving the supply reel, paying off wire at a rate tending to keep the lower sheave stack at or near a desired position, such as the center of its range of movement.
  • the wire travels through extrusion apparatus which applies a uniform thickness of coating material to the wire, and thence directly to the winding drum.
  • the wire is pulled from the extruder by the motor-driven drum, the structure and operation of which are entirely conventional .
  • the supply roll drive motor is also stopped.
  • all wire travel is stopped, including the portion of the wire passing through the extruder.
  • a unique venting system forming an aspect of the present invention, is provided for diverting any excess material away from the wire.
  • the respective drive motors for the supply reel and the winding drum are then actuated simultaneously to begin another winding cycle.
  • Figure 1 is a partly diagrammatic illustration of the bead winding system of the invention
  • Figure 2 is a plan view of certain elements seen in phantom lines in Figure 1, i.e., those elements surrounded by the dashed lines indicated by reference numeral 16;
  • Figure 3 is an exploded, perspective view of the elements of Figure 2 ;
  • Figures 4 and 5 are elevational views, in section, of portions of extruder apparatus of the prior art and the present invention, respectively, used in bead winding operations .
  • Supply reel 10 of metal wire of a type suitable for use in tire beads is mounted upon frame means 12.
  • Electric motor 14 is operable to rotate reel 10 in a direction paying off wire from the reel.
  • accumulator means 16 which receives wire directly from the reel, holding a variable quantity of wire and applying a desired tension thereto, as explained later. From the accumulator means, bare wire 18 passes through extrusion means 20 which applies a layer of rubber, or similar coating materials used in bead-forming operations .
  • Coated wire 18' is wound upon drum 22, of entirely conventional construction, as the drum is rotated by electric motor 24, pulling wire from accumulator means 16 and through extruder 20.
  • rotation of both reel 10 and drum 22 by motors 14 and 24, respectively is stopped while the wire is severed and the completed bead is removed from drum 22, normally by automatic means (not shown) .
  • rotation of reel 10 and drum 22 is resumed and another bead is wound.
  • rotation of both reel 10 and drum 22 is started and stopped once during each winding cycle, as opposed to typical prior art systems where rotation of the winding drum is stopped and started during each cycle but wire continues to be drawn from the supply reel and stored on a festoon between the extruder and the winding drum.
  • FIG. 2 The elements of accumulator means 16 are shown in more detail in Figures 2 and 3.
  • a first plurality of pulleys or sheaves 26 are stacked adjacent one another for rotation about the axis of rod 28 and secured by nut 30.
  • Rod 28 is supported upon, with its axis perpendicular and fixed with respect to, frame member 12a, and is fixedly supported by frame member 12b ( Figure 1) upon the other, rigidly interconnected members of frame 12.
  • a second plurality of sheaves 32 are likewise stacked together and mounted upon, for rotation about the axis of, rod 34 and secured by bolt 36.
  • Rod 34 is fixedly connected to channel member 38 which slidingly engages track member 40 which is affixed to frame member 12a by screws 42, the longitudinal axes of elongated track member 40 and frame member 12a being parallel.
  • the axis of rotation of sheave stack 32 is linearly movable toward and away from the axis of rotation of sheave stack 26 as channel member 38 slides along track member 40.
  • Pneumatic cylinder 44 is mounted upon frame member 12a, and connected, through manually operable throttle valve 46, to compressed air source 48.
  • Cable 50 passes around pulleys 52, 52' at opposite ends of cylinder 44 and enters the cylinder through suitable seals with opposite ends of the cable affixed to opposite sides of the piston.
  • a portion of cable 50 externally of cylinder 44 is affixed to bracket 54, mounted on rod 34 and connected to channel member 38.
  • the elements operate in the manner of a so-called air motor, with the air pressure applied to one side of the piston urging it cable 50 and bracket 54, and thus sheave stack 32, in a direction away from sheave stack 26.
  • Electrically conducting bar 56 is supported on frame member 12a, and conducting slide member or wiper 58 is connected to bracket 54 for sliding, electrical contact with bar 56 in response to movement of sheave stack 32, for purposes explained later.
  • Wire 18 is led from supply reel 10 to sheave 26a, at one end of sheave stack 26, and thence to sheave 32a of sheave stack 32. Wire 18 passes around successive sheaves of the two stacks, and is led from sheave 26b to extruder 20.
  • the amount of wire 18 held upon accumulator means 16, i.e., the wire passing around sheave stacks 26 and 32 varies with the accumulator means 16, i.e, the wire passing around sheave stacks 26 and 32, varies with the distance between the two sheave stacks. That is, the amount of wire held or stored on the accumulator means is increasingly greater as sheave stack 32 moves away from sheave stack 26, and vice versa.
  • the wire passing around the sheave stacks is maintained under tension to some extent by gravity and to some extent by the biasing force of the air motor.
  • the weight of the sheaves and associated, movable elements tend to move sheave stack 32 away from sheave stack 26.
  • the biasing force provided by the air pressure on one side of the piston tends to move stack 32 away from stack 26, this force being selectively variable by operator adjustment of valve 46.
  • Electrically conducting bar 56 and wiper 58 provide the fixed and movable contacts of a potentiometer, connected in a conventional speed control circuit for motor 14. Operation of the circuit is such that, as sheave stack 32 moves closer to sheave stack 26, thereby varying the resistance of the potentiometer, the speed of motor 14 is increased. This increases the rate at which wire is paid off from reel 10 and, with motor 24 operating at a substantially constant speed, increases the amount of wire held on accumulator means 16, moving sheave stack 32 away from sheave stack 26. This movement, of course, slows the speed of motor 14, eventually moving sheave stack 32 back toward stack 26. Thus, an electrical-mechanical feedback loop tends to maintain sheave stack 32 near the center of its range of movement while accommodating differences in speed and actuation times of the two motors, and other system variables.
  • prior art extrusion die 60 has passageway 62 with entry and exit ends 64 and 66, respectively, through which wire 18 is moved, with the coating material deposited thereon.
  • Die 70 includes passageway 72, of the same cross-sectional configuration as passageway 62.
  • die 70 has second passageway 74 with first end 76 communicating with passageway 72 between its entry and exit ends 78 and 80, respectively, and second end 82 communicating with the exterior of the extrusion apparatus.
  • Passageway 74 has a cross-sectional area which is constant throughout its length and larger than the maximum cross-sectional area of passageway 72.
  • the central, linear axes of passageways 72 and 74 form an acute angle, preferably about 45 degrees, and the two passageways communicate at a position preferably between about 40% and 60% of the distance between entry and exit ends 78 and 80.
  • Motor 14 is preferably capable of accelerating the rate of wire payoff from reel 10 (weighing about 1,000 pounds when full) from 0 to full speed in less than 2 seconds.
  • motor 14 may be 500V DC, 15 horsepower for wire speed of 750 feet per minute, or 20 horsepower for speeds of 1,500 feet per minute.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

Cette invention concerne un système d'enroulement de talon de pneu qui ne fait pas appel à la guirlande verticale traditionnelle servant à stocker une longueur variable de câble enrobé entre la filière d'extrusion et le tambour d'enroulement. La bobine de distribution (10) est entraînée en rotation afin de dévider du câble (18) à l'aide d'un moteur électrique à vitesse variable (14). Le tambour d'enroulement (22) est entraîné en rotation par un second moteur (24) de manière à tirer le câble à travers la filière d'extrusion (20), les deux moteurs étant arrêtés lors de la coupe du câble. Le talon fini est retiré du tambour, et la nouvelle extrémité avant du câble est alors pincée dans le tambour. Les deux moteurs sont alors remis en marche, globalement simultanément, de manière à commencer un nouveau cycle d'enroulement. Un accumulateur (16) de taille relativement réduite est monté sur le même châssis que la bobine de distribution et que le moteur d'entraînement de celle-ci. Un vérin pneumatique (44) exerce une tension sur le câble au niveau de l'accumulateur, et la vitesse du moteur d'entraînement de la bobine est modifiée automatiquement afin de dévider du câble à une vitesse qui tend à maintenir constante la quantité de câble sur l'accumulateur.
PCT/US1999/006815 1998-12-16 1999-03-29 Systeme d'enroulement du talon d'un pneu sans guirlande Ceased WO2000035667A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34551/99A AU3455199A (en) 1998-12-16 1999-03-29 Festoonless tire bead winding system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21245198A 1998-12-16 1998-12-16
US09/212,451 1998-12-16

Publications (1)

Publication Number Publication Date
WO2000035667A1 true WO2000035667A1 (fr) 2000-06-22

Family

ID=22791077

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/006815 Ceased WO2000035667A1 (fr) 1998-12-16 1999-03-29 Systeme d'enroulement du talon d'un pneu sans guirlande

Country Status (2)

Country Link
AU (1) AU3455199A (fr)
WO (1) WO2000035667A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003062113A1 (fr) * 2001-12-21 2003-07-31 Gianni De Paoli Unite de stockage dynamique destinee a des composants structurels d'un pneu
CN103862692A (zh) * 2014-03-10 2014-06-18 无锡盛力达科技股份有限公司 胎圈钢丝缠绕机绕丝支架
WO2016020967A1 (fr) * 2014-08-04 2016-02-11 不二精工 株式会社 Dispositif d'enduction de caoutchouc pour fil d'acier
CN110171741A (zh) * 2019-04-09 2019-08-27 江苏亨通光电股份有限公司 光纤光缆加工用恒张力储线系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927811A (en) * 1932-02-12 1933-09-19 Firestone Tire & Rubber Co Machine for making tire bead cores
US2902083A (en) * 1955-03-03 1959-09-01 Nat Standard Co Method of manufacturing tire beads
US3049308A (en) * 1960-01-21 1962-08-14 Nat Standard Co Festoon control system for haul-off apparatus
NL6906871A (fr) * 1968-05-10 1969-11-12
US3612430A (en) * 1968-07-26 1971-10-12 Instron Corp Device for feeding webs in recording instruments
US3718289A (en) * 1971-03-05 1973-02-27 Peripheral Equipment Corp Reel servo system
US3994445A (en) * 1972-01-10 1976-11-30 Luigi Tarulli Compensator for controlling the tension of a wire travelling through a wire-working machine
WO1997048548A1 (fr) * 1996-06-18 1997-12-24 Bartell Machinery Systems, Llc Procede et appareil de type feston pour l'alimentation en tringle de pneumatique

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927811A (en) * 1932-02-12 1933-09-19 Firestone Tire & Rubber Co Machine for making tire bead cores
US2902083A (en) * 1955-03-03 1959-09-01 Nat Standard Co Method of manufacturing tire beads
US3049308A (en) * 1960-01-21 1962-08-14 Nat Standard Co Festoon control system for haul-off apparatus
NL6906871A (fr) * 1968-05-10 1969-11-12
US3583651A (en) * 1968-05-10 1971-06-08 Glanzstoff Ag Method and apparatus for feeding parallel wire strands
US3612430A (en) * 1968-07-26 1971-10-12 Instron Corp Device for feeding webs in recording instruments
US3718289A (en) * 1971-03-05 1973-02-27 Peripheral Equipment Corp Reel servo system
US3994445A (en) * 1972-01-10 1976-11-30 Luigi Tarulli Compensator for controlling the tension of a wire travelling through a wire-working machine
WO1997048548A1 (fr) * 1996-06-18 1997-12-24 Bartell Machinery Systems, Llc Procede et appareil de type feston pour l'alimentation en tringle de pneumatique

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003062113A1 (fr) * 2001-12-21 2003-07-31 Gianni De Paoli Unite de stockage dynamique destinee a des composants structurels d'un pneu
CN103862692A (zh) * 2014-03-10 2014-06-18 无锡盛力达科技股份有限公司 胎圈钢丝缠绕机绕丝支架
CN103862692B (zh) * 2014-03-10 2016-09-28 无锡盛力达科技股份有限公司 胎圈钢丝缠绕机绕丝支架
WO2016020967A1 (fr) * 2014-08-04 2016-02-11 不二精工 株式会社 Dispositif d'enduction de caoutchouc pour fil d'acier
JPWO2016020967A1 (ja) * 2014-08-04 2017-05-18 不二精工株式会社 鋼線のゴム被覆装置
RU2670892C2 (ru) * 2014-08-04 2018-10-25 Фудзи Сейко Ко., Лтд. Устройство для нанесения резины на стальную проволоку
RU2670892C9 (ru) * 2014-08-04 2018-12-19 Фудзи Сейко Ко., Лтд. Устройство для нанесения резины на стальную проволоку
US10464248B2 (en) 2014-08-04 2019-11-05 Fuji Seiko Co., Ltd. Rubber-coating device for steel wire
DE112014006853B4 (de) 2014-08-04 2024-09-26 The Yokohama Rubber Co., Ltd. Kautschukbeschichtungsvorrichtung für Stahldraht
CN110171741A (zh) * 2019-04-09 2019-08-27 江苏亨通光电股份有限公司 光纤光缆加工用恒张力储线系统

Also Published As

Publication number Publication date
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