EP1525147A2 - Flyer bow apparatus with travelling carrier strip - Google Patents
Flyer bow apparatus with travelling carrier stripInfo
- Publication number
- EP1525147A2 EP1525147A2 EP03772041A EP03772041A EP1525147A2 EP 1525147 A2 EP1525147 A2 EP 1525147A2 EP 03772041 A EP03772041 A EP 03772041A EP 03772041 A EP03772041 A EP 03772041A EP 1525147 A2 EP1525147 A2 EP 1525147A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bow
- carrier strip
- wire
- flyer
- machine
- 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.)
- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 18
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
- D07B3/08—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position
- D07B3/10—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position with provision for imparting more than one complete twist to the ropes or cables for each revolution of the take-up reel or of the guide member
- D07B3/103—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the take-up reel rotates about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the rope or cable on the take-up reel in fixed position and the supply reels are fixed in position with provision for imparting more than one complete twist to the ropes or cables for each revolution of the take-up reel or of the guide member characterised by the bow construction
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
- D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
- D07B3/022—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position with provision for imparting two or more twists to the filaments for each revolution of the guide member
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/021—Guiding means for filaments, strands, ropes or cables
Definitions
- the present invention relates to the field of machines for the production of stranded wire or cable, and in particular, relates to such machines which utilize a flyer bow.
- Double twist, single twist, skip and other wire or cable manufacturing machines are commonly used to prepare various types of wire and cables (which can include coated or uncoated wires, cables, fibre optic cables and the like).
- the resultant wires and cables are of the type that include a plurality of twisted wires which are manufactured in either one stage or in two or more stages.
- the twisted wires are first prepared by twisting the wires together by means of so-called twinning or pairing machines.
- Twisted wires are then made up into communications cables by means of for example, stationary take-ups, rotating take-ups (also called drum twisting machines) or other types of rotating equipment.
- This equipment includes a bobbin cradle around which is arranged a rotatable frame or flyer bow (also simply referred to as a "bow") which is driven to turn around the cradle.
- a rotatable frame or flyer bow also simply referred to as a "bow”
- Wires to be twisted may be supplied from bobbins (or reels) on the bobbin cradle inside the twinning cage, twisted as they are fed to the rotating flyer bow, and then taken up on a take-up reel outside the twinning cage. As the wire travels along the flyer bow, it typically travels on the inside of the bow in a guide path, so that the "bow wire” is kept from flying off of the bow.
- the aforementioned arrangement is referred to as an "inside-out” machine.
- the wires to be twisted may also be supplied from outside the twisting cage and taken up on a bobbin arranged within the bobbin cradle.
- the latter configuration is sometimes referred to as an "outside-in” machine.
- Outside-in machines are generally preferred in individual twisting machines since the wire may be supplied from storage facilities of simple construction and greater capacity. In this case, the bobbin cradle within the twisting cage is also required to hold only a single bobbin.
- the outside-in machine is also readily adaptable to use with a greater number of wires.
- the wire or cable is twisted once as it enters the flyer bow, and twisted again as it exits the flyer bow.
- the twisted elements so manufactured are directed to any type of take-up (e.g., stationary or rotating take-ups, single or double twist machines, capstan or extrusion lines) for laying up twisted wires to form a communication cable. This is typically done in one operation.
- the wire twisting machines can be arranged horizontally or vertically, depending on the preferred plant layout. Examples of such machines, utilizing a flyer bow are described in US Patent No. 5,966,917, and in US Patent No. 5,400,579. As such, these types of machines are well known in the wire and cable production art, and will hereinafter be referred to as "flyer bow machines". Accordingly, use of this term is meant to cover any machine for wire or cable production which involves the use of a flyer bow.
- the feed rate of the feed wire or cable can reach speeds in excess of 250 m/min.
- the rotational speed of the flyer bow must also be increased in order to maintain a consistent lay in the wire or cable produced.
- the rotational speed of the flyer bow must be increased by a corresponding amount, and may reach speeds of up to 3000 rpm or more.
- the various wire or cable production machines utilizing flyer bows are production limited by, inter alia, the maximum rotational speed of the flyer bow.
- the maximum rotational speed of the bow is limited by factors such as, the centrifugal force acting on the wire as it travels along the bow wire path, Coriolis forces, and the frictional forces from the surface of the bow. These forces all act to increase the tension on the wires beings produced. All wires, whether electrical or mechanical, have a maximum allowable tension that can be sustained for a given time period before various types of damage is created. As such, the maximum production speed of the production machinery is limited by the need to avoid or minimize unacceptable levels of this damage.
- the present invention provides a flyer bow machine for twisting or twinning wires or cables having a rotatable bow section along which a wire or cable travels longitudinally during the twisting or twinning operation, and further comprising a carrier strip along a longitudinal surface of said bow against which the wire or cable travels, and a carrier strip drive mechanism which moves said drive strip in the direction that said wire or cable travels.
- the present invention also provides a flyer bow having an inside surface and an outside surface, a carrier strip which travels in one direction on the inside surface of said bow, and in the opposite direction on the outside surface of said bow, pulleys located at or near the ends of said bow for moving said carrier strip from one surface of said bow to the other, and drive means for propelling at least one of said pulleys, and thus propelling said carrier strip.
- the present invention also provides for the use of the flyer bow machine, or the flyer bow, in the production of wire or cable.
- flyer bow machine refers to any of the known wire or cable production machines which utilize a flyer bow.
- the present application is primarily directed to the production of wire or cable, which can include coated or uncoated strands of wire or cable, which can include, for example, optical fibre cable.
- the wire or cable can be produced from any suitable ferrous or non-ferrous metal, including for example, copper, steel or aluminum, but might also be prepared from any other material suitable for use as a wire or cable, or component thereof, such as plastics, fibre optics and the like.
- flyer bow machines for wire and cable production are used in a wide variety of applications, and to produce a wide variety of wire and cable products. Accordingly, while the present application is hereinafter described with particular reference to the wire industry, the skilled artisan would be aware that the present application is equally applicable in numerous other applications.
- the primary feature of the present invention is the use of a traveling carrier strip on the flyer bow which moves longitudinally along the bow wire path.
- the carrier strip moves at a speed which closely matches the wire speed of the wire moving along the bow wire path, and as such, the carrier strip speed is within 5% of the speed of the wire speed. More preferably, the carrier strip speed is within 1% of the speed of the wire speed, and most preferably is within 0.1 % of the speed of the wire speed.
- the carrier strip moves preferably along the inner surface of the flyer bow in the same direction, and at the same speed, as the wire.
- the wire is "pressed" against the carrier strip by the centrifugal force of the rotating bow.
- the frictional force of the wire pressing against the bow is reduced and/or eliminated. With the elimination or reduction of this frictional force, the tension on the wire as it passes through the flyer bow machine is reduced.
- the line speed and/or the rotational speed of the bow can be increased in order to prepare wires of improved quality, and/or produce wires of equal quality at increased speeds.
- the flyer bow can be constructed of the materials known in the prior art.
- the flyer bow is made of a fibreglass material, or of a carbon fibre material.
- suitable materials of construction for the bow would be well known to the skilled artisan.
- flyer bow machines are known where a wire is fed along each bow. The bows are preferably balanced so that rotational vibrations caused by the bow are minimized.
- the endless carrier strip is preferably a loop of an appropriate material which travels in an overall circular pattern. This might include an arrangement wherein the carrier strip travels up the inside of one bow, and returns on the inside of the opposite bow. Alternatively, the carrier strip might travel up and return on one side of the bow. However, preferably, the carrier strip travels longitudinally up the inside of the bow, passes through a pulley, and returns, traveling in the opposite direction, on the outside of the bow. A second pulley would then return the carrier strip from the outside to the inside of the bow. Normally, the wires passing along the bow (the "bow wires") would contact the carrier strip on the inner surface of the bow. [0027] At least one of the pulleys is preferably linked to a carrier strip drive means in order to move the carrier strip at a selected speed.
- the carrier strip can be flat or some other acceptable shape. For example, a concave shape will position the wire in the centre of the carrier strip, and aid in reducing any damage resulting from the Coriolis force.
- the carrier strip is preferably an "endless" belt and can be made of any material which provides acceptable strength properties for the intended application.
- the carrier strip can be made of fabric or plastic, but more preferably is made from a ferrous or non-ferrous material, and most preferably is made of a high tensile, metal alloy, such as steel, which would have good strength properties, while resisting stretching at the intended speeds.
- the carrier strip is preferably held in position within a carrier strip channel on the inside surface of the bow, together with the bow wire, by a wire guide.
- the return path of the carrier strip, on the outside surface of the bow, can be established using several strips which support and maintain the carrier strip in position on the outside of the bow.
- the carrier strip is driven by a precision variable speed motor and control, and preferably includes a differential gear box.
- the speed of the carrier strip can be closely controlled and matched to the speed of the bow wire.
- the differential gear box is preferably connected to a flyer shaft by timing belts and pulleys such that the flyer bow rotation has no effect on the speed of the carrier strip.
- the flyer shaft is preferably concentric with a carrier strip drive shaft, and is supported by ball bearings, and in turn, drives a set of spur gears and the like, to ultimately drive the carrier strip drive pulley.
- a spring tensioning device would also be provided in order to maintain a desired amount of tension on the carrier strip.
- Figure 1 is a plan view of a flyer bow machine according to the prior art
- Figure 2 is a plan view of the flyer bow machine of the present invention.
- Figure 3 is a plan view of a flyer bow section of the device of Figure 2.
- Figure 4 is a partial, perspective view of a portion of the flyer bow of Figure 3.
- FIG. 1 the flyer bow machine has a support frame 11, and is an inside-out machine have two shrouds 12 and 14 each containing a reel of a coated, single strand wire, located within a main body section 20.
- the reels within shrouds 12 and 14 are rotated by electric motor 16 at a speed such that wires 'W" are fed from the reels at essentially the same speed as the production line speed.
- bows 22 and 24 are connected by brackets 26 to a central axle 28, which in turn is connected to an electric motor (not shown) through pulley 29 used to rotate bows 22 and 24 about main body section 20.
- a strand of wire is fed from each reel within shrouds 12 and 14 and passes around single pulleys 30, to double pulley 32.
- the two wires, in side-by-side configuration are then fed through the center of body section 20 to a first bow pulley 34, and then on to bow 22.
- Bows 22 and 24 rotate around main body section 20, so that a first twist is applied to the wires.
- the "bow wires" then travel along the inside of bow 22, and pass through various wire guides 36.
- the wires are fed to a second bow pulley 38, and then exit bow flyer machine 10.
- a second twist is provided, and thus a double twist is provided.
- the wires are then fed through a capstan (not shown), which capstan is responsible for pulling the wires through the bow flyer machine. After the capstan, the twisted or twinned wires are then collected on a take-up reel (not shown).
- the line speed of the wire feed and the rotation rate of the bows can be adjusted to provide the appropriate production rate for the wire tension encountered, while providing the desired lay distance.
- the rotation rate can be 2250 RPM or higher providing a twist rate of double that amount, and a line speed of 250 m/min, or higher.
- machine 100 is set at an angle, but is basically similar to machine 10 shown in Figure 1.
- Machine 100 also includes a flyer bow assembly, which is shown in greater detail in Figure 3.
- bow 120 includes a first pulley 122, a driven pulley 124, a spring tensioner 126, a pulley motor 135, and a drive mechanism 130 for rotating the driven pulley 124, which consists of a differential gear box 136, and a series of gears and the like.
- pulley motor 135 is a precision variable speed motor and control which is connected to differential gear box 136 using a belt and pulleys 145.
- the output of differential gear box 136 is transferred to flyer shaft 139 through a second series of belts and pulleys 146.
- the flyer shaft is concentric with a carrier strip drive shaft 138, and supported in ball bearings which in turn, drives a set of spur gears 140, and then a set of bevel gears 141 onto the driven pulley 124.
- Carrier strip 110 extends along the inside of bow 120, and passes around driven pulley 124.
- Carrier strip 110 then extends along the outside of bow 120, and passes around pulley 122 to return to the inside of bow 120.
- Spring tensioner 126 maintains a suitable level of tension on carrier strip 110.
- Carrier strip 110 is moved around bow 120 as a result of the rotation of driven pulley 124 at a rate of speed substantially matched to the speed of the wire moving along the inside of bow 120.
- Driven pulley 124 also acts as the flyer bow wire exit pulley so that the wire W will exit the bow at this pulley.
- the line speed of the carrier strip control system can be a
- Figure 4 shows a partial, perspective view of a portion of the flyer bow of Figure
- Bow 120 is made of fibreglass, and has an inner surface on which the carrier strip 110 travels.
- Carrier strip 110 is contained within a carrier strip channel 113 formed using carrier strip guide 112, on the inner surface of bow 120.
- Carrier strip 110 passes in the opposite direction on the outside of bow 120, and is held in position by wire guide strips 114. For reference, two wire strands W are shown against carrier strip 110 on the inside of bow 120.
- substantially planar is intended to mean planar, nearly planar and/or exhibiting characteristics associated with a planar element.
- use of the terms “he”, “him”, or “his”, is not intended to be specifically directed to persons of the masculine gender, and could easily be read as “she”, “her”, or “hers”, respectively.
Landscapes
- Ropes Or Cables (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39879302P | 2002-07-29 | 2002-07-29 | |
US398793P | 2002-07-29 | ||
PCT/US2003/023689 WO2004011354A2 (en) | 2002-07-29 | 2003-07-29 | Flyer bow apparatus with travelling carrier strip |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1525147A2 true EP1525147A2 (en) | 2005-04-27 |
EP1525147A4 EP1525147A4 (en) | 2006-08-23 |
Family
ID=31188483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03772041A Withdrawn EP1525147A4 (en) | 2002-07-29 | 2003-07-29 | Flyer bow apparatus with travelling carrier strip |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1525147A4 (en) |
CN (1) | CN1316082C (en) |
AU (1) | AU2003259287A1 (en) |
CA (1) | CA2461601C (en) |
HK (1) | HK1071777A1 (en) |
RU (1) | RU2303669C2 (en) |
WO (1) | WO2004011354A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7165387B2 (en) * | 2005-03-02 | 2007-01-23 | Kamatics Corporation | Flyer bow with semi-enclosed wire guides |
DE102010014356A1 (en) * | 2010-04-09 | 2011-10-13 | Maschinenfabrik Niehoff Gmbh & Co Kg | Machine for processing elongated extrudates |
DE202013010960U1 (en) | 2013-12-05 | 2015-03-06 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Verlitz- or stranding machine with rotor bracket and transport device |
US10407826B2 (en) | 2015-11-16 | 2019-09-10 | Roy R. R. Rymer | Detachable flyer bow system, apparatus and methods of using same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3142952A (en) * | 1962-05-08 | 1964-08-04 | Anaconda Wire & Cable Co | Stranding apparatus |
US3812666A (en) * | 1972-06-22 | 1974-05-28 | Pirelli | Double-twist stranding or cabling machine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR87005E (en) * | 1963-04-12 | 1966-05-27 | Geoffroy Delore | Method for transmitting a rotational movement from one end of a filiform element to the other, and wiring machines for implementing this method |
US3945182A (en) * | 1974-11-19 | 1976-03-23 | General Cable Corporation | Twisting machine flyer bow |
JPS60231885A (en) * | 1984-04-27 | 1985-11-18 | 住友電装株式会社 | Wire twisting apparatus |
DE69208964T2 (en) * | 1991-07-23 | 1996-08-14 | Bekaert Sa Nv | Guide bow |
WO1994024349A1 (en) * | 1991-11-20 | 1994-10-27 | Syncro Machine Co. | Apparatus and method for the manufacture of telephone cables |
US5622039A (en) * | 1994-04-08 | 1997-04-22 | Ceeco Machinery Manufacturing Limited | Apparatus and method for the manufacture of uniform impedance communications cables for high frequency use |
US5809763A (en) * | 1996-10-16 | 1998-09-22 | Kamatics Corporation | Flyer bow having an airfoil shape in cross section |
US5966917A (en) * | 1998-02-11 | 1999-10-19 | Nextrom, Ltd. | Pre-twist group twinner and method of manufacturing communication cables for high frequency use |
US6289661B1 (en) * | 1999-12-07 | 2001-09-18 | Kamatics Corporation | Wire guide holder |
-
2003
- 2003-07-29 CA CA2461601A patent/CA2461601C/en not_active Expired - Fee Related
- 2003-07-29 WO PCT/US2003/023689 patent/WO2004011354A2/en not_active Application Discontinuation
- 2003-07-29 AU AU2003259287A patent/AU2003259287A1/en not_active Abandoned
- 2003-07-29 EP EP03772041A patent/EP1525147A4/en not_active Withdrawn
- 2003-07-29 CN CNB038012456A patent/CN1316082C/en not_active Expired - Fee Related
- 2003-07-29 RU RU2004118301/12A patent/RU2303669C2/en not_active IP Right Cessation
-
2005
- 2005-05-27 HK HK05104452A patent/HK1071777A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3142952A (en) * | 1962-05-08 | 1964-08-04 | Anaconda Wire & Cable Co | Stranding apparatus |
US3812666A (en) * | 1972-06-22 | 1974-05-28 | Pirelli | Double-twist stranding or cabling machine |
Non-Patent Citations (1)
Title |
---|
See also references of WO2004011354A2 * |
Also Published As
Publication number | Publication date |
---|---|
CA2461601C (en) | 2011-11-29 |
RU2303669C2 (en) | 2007-07-27 |
RU2004118301A (en) | 2005-03-10 |
AU2003259287A1 (en) | 2004-02-16 |
AU2003259287A8 (en) | 2004-02-16 |
WO2004011354A2 (en) | 2004-02-05 |
CN1316082C (en) | 2007-05-16 |
CA2461601A1 (en) | 2004-02-05 |
CN1564887A (en) | 2005-01-12 |
WO2004011354A3 (en) | 2004-06-03 |
EP1525147A4 (en) | 2006-08-23 |
HK1071777A1 (en) | 2005-07-29 |
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