US3667203A - Winding machine for covering a hose of high polymer with reinforcing threads - Google Patents

Winding machine for covering a hose of high polymer with reinforcing threads Download PDF

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Publication number
US3667203A
US3667203A US37171A US3667203DA US3667203A US 3667203 A US3667203 A US 3667203A US 37171 A US37171 A US 37171A US 3667203D A US3667203D A US 3667203DA US 3667203 A US3667203 A US 3667203A
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US
United States
Prior art keywords
thread
containers
shaft
braking
movable members
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 - Lifetime
Application number
US37171A
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English (en)
Inventor
Bruno Koschatzky
Attilio E Angioletti
Nino Madonini
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.)
Industrie Pirelli SpA
Pirelli and C SpA
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Pirelli SpA
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Application filed by Pirelli SpA filed Critical Pirelli SpA
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Publication of US3667203A publication Critical patent/US3667203A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
    • B65H81/06—Covering or wrapping elongated cores
    • B65H81/08—Covering or wrapping elongated cores by feeding material obliquely to the axis of the core
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/24—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using threads

Definitions

  • ABSTRACT Foreign Application Priority Data A thread winding machine having a rotation speed in excess of 600 r.p.m. consisting of a pair of axially aligned winding units July 4, pp y rotatable y a single motor. Each i has a rolata ble hollow shaft through which a hose to be covered with the United States Patent Koschatzky et al.
  • the present invention relates to a winding machine for ap plying at least a pair of layers of threads, helically wound up and disposed in opposite directions, on flexible hoses of a high polymer, intended to convey fluids under pressure and therefore subjected to considerable inner stresses.
  • the winding machines heretofore used were provided with at least one pair of rotary elements having a large diameter adapted to receive an adequate number of thread reels or thread cones.
  • these had to be positioned on the rotary elements at an appropriate distance from each other to permit the threads to balloon without any mutual interference.
  • Due to their size, the rotary elements gave rise during rotation to rather high moments of inertia, so that the machine had to be provided with a reinforced structure, thus adding to manufacturing and operating costs.
  • the present invention aims at providing a winding machine having a high rotation speed and consequently a high productive capacity.
  • the present invention provides a winding machine having a high rotation speed, for example greater than 600 r.p.m., having at least one pair of winding units op- 'positely rotatable by a single motor and axially aligned. Each unit has a rotatable hollow shaft through which a hose to be covered is passed.
  • Each unit has at least one group, whose components do not preferably exceed the number of nine, of closed containers of circular cross section, each of which encloses a fixed cone of thread designated a defiler disposed in a coaxial position and having a base slightly spaced from the container wall, the containers being fast with and around the hollow shaft in a star-like arrangement, with their axis inclined, relative to the shaft axis, at an angle ranging from to preferably between 13 and 17, and their bases in close proximity or even in contact with one another.
  • a conveying ring is keyed on one end of the shaft and is used for guiding towards the hose all the threads coming from adjacent openings in the outer ends of the containers.
  • a guiding head keyed on the hollow shaft upstream of the ring and operating the laying of the threads on the hose to be covered is provided together with means for braking each thread during its travel from a container opening to the conveying ring.
  • An object of the present invention is a device for braking a thread subjected to a motion of translation and to a simultaneous motion of rotation about an axis external to it, which tends to cause ballooning," characterized in that it comprises parts for pressing the thread in a controlled way by a mechanical action of static type, substituted at a certain rotation speed by a dynamic mechanical action so that the advancing thread remains tensioned or slightly ballooned.
  • FIG. 1 is a diagrammatic side view of the winding machine, with parts broken away;
  • FIG. 2 is a diagrammatic front view of a winding unit
  • FIG. 3 is a side view of the thread-braking means corresponding to the above indicated braking device.
  • the winding machine A consists of two equal units 1,1 driven by a single motor 2 and aligned along the same axis.
  • one of the two units is inverted with respect to the other.
  • the winding unit 1 rotates in one direction and the winding unit 1' rotates in the opposite direction.
  • the winding machine A can be arranged in series to an extruder B for a hose 9 of high polymer, for example, an elastomer such as rubber.
  • the winding unit 1 comprises a hollow shaft 3 rotatably assembled, by means of bearings 5, on vertical supports 4 secured to a wheeled frame 6 extending the length of the entire winding machine.
  • the single motor 2, disposed between the two winding units 1 and 1 drives a transmission 8 which drive in turn two shafts 3,3 by means of pulleys 7,7 respectively.
  • the diameter of the hollow shalt must be greater than the maximum diameter of the hose which the winding machine is able to cover.
  • the transmision 8 turns shafts 3,3 in opposite directions.
  • Three discs 10 are keyed at an equal distance on the hollow shaft 3.
  • One of their faces; that is, face 11, is of conical shape.
  • each disc carries six cylindrical containers 12, each closed by a lid 13, which is conical at its top and shows at its peak an opening 14.
  • the angle of the profile of conical lid 1 1 ranges preferably between 45 and 75.
  • FIG. 2 illustrates a star-like arrangement of the containers 12 on a disc.
  • FIG. 1 being diagrammatic, merely shows two containers for each disc.
  • Containers 12, 13 are secured in such a way that their axes are perpendicular to a plane tangent to the conical face 1 l, and are equally spaced about the center of disc 10.
  • a generatrix of the conical surface of the face 11 forms, with respect to a plane perpendicular to the shaft 3, an angle of 15. It follows that the axis of the containers forms an equal angle with respect to the axis of the rotatable shaft 3.
  • Each container 12, 13 houses a conical bobbin of thread 15 fixed in it.
  • the bobbin is mounted on a base 16 and is coaxial with respect to the container. The thread unwinds from bobbin 15 and passes through opening 14.
  • the thread passes from pulleys 18 to a thread guide 19, for the helical laying of the threads on the hose 9.
  • Thread guide 19 is keyed to the shaft 3 near collar 17.
  • the hose 9 passes through the hollow center 21 of the shaft 3 entering at said end 22, and the threads of winding unit 1 are wound helically about the hose.
  • the hose then passes into hollow shaft 3' of the winding unit 1' and reaches the end 22', where it is covered by the second opposite helical layer formed by the threads paid off from the second winding unit 1'.
  • the hose 9, covered with the helically wound up layers of threads as shown at 20, is then covered with a tubular sheath by means of an extruder (not illustrated).
  • the containers 12, 13 mounted on one of the discs 10 are offset with respect to those of all the other groups of containers.
  • Braking means 24 for each thread is provided.
  • the threadbraking means are mounted near apertures 14 and are fixed in such a way as to rotate with them.
  • Such braking means, intended for each group of bobbin containers are secured on the disc 10 preceding them, with the exception of the first group for which the braking means are disposed on guide pulley support 17.
  • the thread-braking means diagrammatically indicated at 24 in FIG. 1 are illustrated in detail in FIG. 3, according to the embodiment corresponding to the above cited braking device, which finds an advantageous employment in the winding machine illustrated in FIGS. 1 and 2.
  • Thread-braking device 24 is comprised of a bracket 25 secured to disc 10.
  • Bracket 25 has an inverted U-shape secured to disc 10 which rotates the thread as well as the thread-braking device.
  • Parallel legs 25a, 25b are provided with thread guides 25c and 25d.
  • a stud 26, provided with a hole or slit)'27 and preferably disposed in a position perpendicular to the axis of the shaft 3 is attached to a cross bar 25a of the bracket.
  • a compression spring 30 and two discs 28 and '29 with central holes thereon are mounted on stud 26 and held in place by nut 31.
  • Discs 28 and 29 are slidable on stud 26 in the zone of the hole 27.
  • the thread 23 coming from the bobbin 15 passes through the'hole 14 of the container and passes between the discs 28 and 29 through the hole 27 in the braking assembly 24. Then, it passes over the guide pulley 18 and into thread guide 19.
  • the efficiency of the braking means is such that the distance betweenthe means of the farthest group and the conveying ring may exceed 1 m.
  • the containers too, carry out a definite action in respect of the thread paid off from the cone referred to as a defiler.”
  • the winding machine A can be arranged in series to an extruder B for the production of a hose.
  • the hose is covered with a first layer of threads immediately after its emission from the extruder B and then; namely, at .the end of its travel along the winding machine A, is covered with the second layer of threads.
  • a thread winding machine for covering a flexible hose with at least one pair of layers of reinforcing threads helically woundup in opposite directions, having at least a pair of axilow shaft through which the hose to be covered is passed;
  • each container has a substantially cylindrical form, and has a conically shaped upper portion the profile of which forms a vertex angle rangcontainers farthest from the conveying ringand the conveying ring exceeds 1 m.
  • each group of containers comprises not more than nine containers.
  • said braking means for controlling the tension of each thread during its travel from a container to the conveyor ring comprises means for continuously braking the movement of said thread regardless of the speed of rotation of said thread about the axis of rotation of said rotatable hollow shaft, said means comprising two movable members facing each other and contacting said thread which advances between said members, means for biasing said movable members together between said biasing means and a stopping means for stopping said movable members, thereby braking the movement of said thread when said thread rotates about said shaft at a rotational speed not greater than a relatively low rotational speed; said movable members having sufficient weight so that when the thread rotates at a relatively high rotational speed the centrifugal force of said two movable members overcomes the biasing force of said biasing means and forces said movable members away from said stopping means against said biasing means, said movable means thereby braking the movement of said thread.
  • a device for braking a strand of thread emerging froma continuous source of such thread said thread being subjected to a motion of rotation about an axis external to said thread, while said strand of thread is simultaneously subjected to a translation motion in a direction in a plane containing said external axis, additionally comprising means for continuously other and contacting said strand of thread which advances between said members, means for biasing said movable members together between said biasing means and a stopping means for stopping said movable members, thereby braking the movement of said thread between said movable members when said thread rotates at a rotational speed not greater than a relatively low rotational speed; said movable members having sufficient weight so that when the thread rotates at a relatively high rotational speed, the centrifugal force of said two movable members overcomes the biasing force of said biasing means and forces said movable means away from said stopping means against said biasing means, said movable means thereby braking the movement of said thread between said movable members.
  • the device of claim 10 comprising a rotatable shaft coaxial with the external axis about which the thread rotates, support means connecting said continuous braking means to said shaft about which both said support means and said continuous braking means rotate, a stud stem connected to said support means, said stud stem positioned with its long axis approximately perpendicular to the axis of said rotatable shaft, and said stud stem having a hole through which said strand of thread passes, said movable members comprising a plurality of discs slidably assembled on said stud stem with said thread between said discs and passing through the hole in the stud stern, a spring associated with said stud stem, said spring stopped at the end of said stud stem connected to said support means, and engaging one of said discs at the other end, thereby biasing one disc toward the other between said spring and a stopping means.
  • said spring comprises a coil spring surrounding the stud stern
  • said stopping means comprises a nut engaging the second end of said stud stern which is opposite the end of said stud stem attached to said supporting means, said second end of said stud stem being threaded, and said nut engaging said stud stem by said threads.
  • a thread winding machine capable of rotational speeds in exce of 600 rpm. for covering flexible hose with at least one pair of layers of reinforcing threads helically wound in opposite directions, said machine comprising a plurality of axially aligned winding units operated in opposite directions by a single source of power, each winding unit comprising a rotatable hollow shaft through which the hose to be covered is passed, at least one group of containers of generally circular cross section, each of which houses a fixed cone of thread, said containers fastened to said shaft positioned around said shaft in a radially symmetrical arrangement, with their respec tive axes inclined relative to the axis of the shaft so that within each group of containers the outer ends of the containers from which thread emerges, are angularly divergent with respect to each other, a conveying means for guiding toward the hose all threads paid out from the containers; guiding means mounted on said shaft for laying the threads on the hose; and braking means for controlling the tension of each thread during its travel from

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
US37171A 1969-07-04 1970-05-14 Winding machine for covering a hose of high polymer with reinforcing threads Expired - Lifetime US3667203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1917169 1969-07-04

Publications (1)

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US3667203A true US3667203A (en) 1972-06-06

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US37171A Expired - Lifetime US3667203A (en) 1969-07-04 1970-05-14 Winding machine for covering a hose of high polymer with reinforcing threads

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US (1) US3667203A (enrdf_load_stackoverflow)
BE (1) BE750114A (enrdf_load_stackoverflow)
CH (1) CH509933A (enrdf_load_stackoverflow)
DE (1) DE2032100C3 (enrdf_load_stackoverflow)
ES (1) ES382120A1 (enrdf_load_stackoverflow)
FR (1) FR2056182A5 (enrdf_load_stackoverflow)
GB (1) GB1320543A (enrdf_load_stackoverflow)
NL (1) NL7005105A (enrdf_load_stackoverflow)
SE (1) SE367783B (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739563A (en) * 1972-02-10 1973-06-19 H Shear Core wrapping machine
US4002011A (en) * 1975-11-28 1977-01-11 The Fujikura Cable Works, Ltd. High speed binding device
DE2818235A1 (de) * 1977-05-02 1978-11-16 Ceeco Machinery Mfg Hochgeschwindigkeits-schwungverseiler
US4232507A (en) * 1973-02-22 1980-11-11 Carlo Menegatto Apparatus and method for wrapping core yarns
US5996216A (en) * 1998-07-02 1999-12-07 Nextrom, Ltd. Apparatus for applying soft filaments to continuous elongate articles
EP1218278A4 (en) * 1999-08-30 2004-04-21 Nextrom Ltd APPARATUS FOR APPLYING SOFT FILAMENTS TO CONTINUOUS ELONGATE ARTICLES
US20050098675A1 (en) * 2002-12-10 2005-05-12 Kim Chun G. Apparatus and method of winding optical fiber sensor coil for fiber optic gyroscope
EP2975166A3 (en) * 2014-07-14 2016-06-29 Crayola LLC Threading apparatus
US9506176B2 (en) 2014-07-14 2016-11-29 Crayola, Llc Thread coloring apparatus
US9816212B2 (en) 2014-07-14 2017-11-14 Fuse London Limited Threading apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035208A1 (de) * 1980-09-18 1982-04-22 Werner 6349 Hörbach Henrich Vorrichtung zum verseilen von draehten
JP5578304B2 (ja) * 2008-06-20 2014-08-27 村田機械株式会社 フィラメントワインディング装置における繊維束のテンション管理システム及び繊維束のテンション管理方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US395363A (en) * 1889-01-01 splitdoef
US1576577A (en) * 1918-12-13 1926-03-16 Peerless Insulated Wire And Ca Wire-covering machine
US1645884A (en) * 1927-10-18 A corpo
US1673815A (en) * 1927-04-12 1928-06-19 Ensign Bickford Co Thread-winding machine
US2423289A (en) * 1945-07-17 1947-07-01 Charles M Bellg Wire wrapping machine
US2732884A (en) * 1956-01-31 Vanzo
US2848863A (en) * 1955-10-13 1958-08-26 Pirelli Apparatus for making reinforced rubber tubing
FR1191528A (fr) * 1958-02-14 1959-10-20 Guipeuse automatique
US3141285A (en) * 1961-08-19 1964-07-21 Glanzstoff Ag Machine for making rope
US3396522A (en) * 1967-01-30 1968-08-13 Albert A. Biagini Stranding machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US395363A (en) * 1889-01-01 splitdoef
US1645884A (en) * 1927-10-18 A corpo
US2732884A (en) * 1956-01-31 Vanzo
US1576577A (en) * 1918-12-13 1926-03-16 Peerless Insulated Wire And Ca Wire-covering machine
US1673815A (en) * 1927-04-12 1928-06-19 Ensign Bickford Co Thread-winding machine
US2423289A (en) * 1945-07-17 1947-07-01 Charles M Bellg Wire wrapping machine
US2848863A (en) * 1955-10-13 1958-08-26 Pirelli Apparatus for making reinforced rubber tubing
FR1191528A (fr) * 1958-02-14 1959-10-20 Guipeuse automatique
US3141285A (en) * 1961-08-19 1964-07-21 Glanzstoff Ag Machine for making rope
US3396522A (en) * 1967-01-30 1968-08-13 Albert A. Biagini Stranding machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739563A (en) * 1972-02-10 1973-06-19 H Shear Core wrapping machine
US4232507A (en) * 1973-02-22 1980-11-11 Carlo Menegatto Apparatus and method for wrapping core yarns
US4002011A (en) * 1975-11-28 1977-01-11 The Fujikura Cable Works, Ltd. High speed binding device
DE2818235A1 (de) * 1977-05-02 1978-11-16 Ceeco Machinery Mfg Hochgeschwindigkeits-schwungverseiler
US5996216A (en) * 1998-07-02 1999-12-07 Nextrom, Ltd. Apparatus for applying soft filaments to continuous elongate articles
EP1218278A4 (en) * 1999-08-30 2004-04-21 Nextrom Ltd APPARATUS FOR APPLYING SOFT FILAMENTS TO CONTINUOUS ELONGATE ARTICLES
US20050098675A1 (en) * 2002-12-10 2005-05-12 Kim Chun G. Apparatus and method of winding optical fiber sensor coil for fiber optic gyroscope
US7090162B2 (en) * 2002-12-10 2006-08-15 Korea Advanced Institute Of Science And Technology Apparatus and method of winding optical fiber sensor coil for fiber optic gyroscope
EP2975166A3 (en) * 2014-07-14 2016-06-29 Crayola LLC Threading apparatus
US9506176B2 (en) 2014-07-14 2016-11-29 Crayola, Llc Thread coloring apparatus
US9816212B2 (en) 2014-07-14 2017-11-14 Fuse London Limited Threading apparatus

Also Published As

Publication number Publication date
BE750114A (fr) 1970-10-16
DE2032100C3 (de) 1979-10-31
CH509933A (it) 1971-07-15
GB1320543A (en) 1973-06-13
FR2056182A5 (enrdf_load_stackoverflow) 1971-05-14
DE2032100A1 (de) 1971-01-21
NL7005105A (enrdf_load_stackoverflow) 1971-01-06
SE367783B (enrdf_load_stackoverflow) 1974-06-10
ES382120A1 (es) 1973-04-01
DE2032100B2 (de) 1979-03-08

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