EP0048130A2 - Planetary 'SZ' twist accumulator - Google Patents
Planetary 'SZ' twist accumulator Download PDFInfo
- Publication number
- EP0048130A2 EP0048130A2 EP81304121A EP81304121A EP0048130A2 EP 0048130 A2 EP0048130 A2 EP 0048130A2 EP 81304121 A EP81304121 A EP 81304121A EP 81304121 A EP81304121 A EP 81304121A EP 0048130 A2 EP0048130 A2 EP 0048130A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- accumulator
- rolls
- axis
- capacity
- sun gear
- 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.)
- Granted
Links
- 230000007423 decrease Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/0235—Stranding-up by a twisting device situated between a pay-off device and a take-up device
- H01B13/0242—Stranding-up by a twisting device situated between a pay-off device and a take-up device being an accumulator
Definitions
- This invention relates to the twisting or stranding of lengths of filamentary material.
- At least one accumulator of material, or two accumulators in series are used.
- Conventional accumulators each comprise two accumulator rolls which are disposed radially spaced-apart along the feed path of the material and with their rotational axes parallel so that their axes.,extend normal to the feed paths.
- a length of material to be stranded or twisted is fed onto the accumulator by passing the material partly around each roll and from roll to roll.
- the maximum length of filamentary material which may be accommodated upon an accumulator i.e. maximum accumulator capacity
- the maximum length of filamentary material which may be accommodated upon an accumulator is dependent upon the roll diameters, the distance apart of the rolls, and the number of passes of material between rolls which, of course, is dependent upon the axial length of the rolls.
- a conventional accumulator is caused to rotate about the feed path of the material, i.e. about a plane normal to the axial direction of the rolls, to provide a twist in the material as it enters an accumulator.
- the resultant twist i.e. that in the material after it has left the accumulator, is a function of the material speed of the whole accumulator about the feedpath, and the entry and exit speed of the material into and from the accumulator.
- the SZ twist is found to have particular electrical advantages in twisted or stranded electrical cable or telecommunications cable. It is well known in the cable art as is exemplified in a paper "SZ Twisting and Stranding of Communications Cables Using Rotating Accumulators With Periodically Changing Capacity" by D. Vogelsberg as published in Proceedings of 20th International Wire and Cable Symposium.
- the invention provides an accumulator for a twisting or stranding apparatus comprising at least two accumulator rolls which are in radial alignment, radially spaced apart, and rotatable about substantially parallel individual axes while both are rotatable together about a common accumulator axis which is substantially parallel to the individual axes with at least one of the rolls being movable around an accumulator capacity change axis spaced from and parallel to the individual axes, towards and away from the other roll to decrease and increase the capacity of the accumulator, and means to drive the rolls about the common axis to twist or strand said lengths and simultaneously to rotatably move the at least one roll towards and away from the other roll.
- the invention envisages the use of two accumulator rolls with one or both rolls being movable around said capacity change axis. In a case particularly where one only of the rolls is movable around the capacity change axis, this axis may be coincident with the common axis.
- the rolls are preferably movable in synchronism towards and away from the other rolls to decrease and increase the capacity of the accumulator between minimum and maximum capacities.
- the rolls are spaced apart around the common accumulator axis and are movable in unison around individual capacity change axes between closely spaced positions near to the accumulator axis (i.e. for minimum capacity), and widely spaced positions further from the accumulator axis. Such movement is radial with respect to the accumulator axis.
- the means to drive the rolls comprises a sun gear and planet gears drivably connected to the sun gear, with the rolls being mounted one upon each of the planet gears.
- Rotation of the planet gears at a desired relative speed to the rotational speed of the sun gear moves the rolls into and out of maximum and minimum capacity positions of the accumulator at a required rate while the actual rotational speed of the sun gear controls the amount of twist given to filamentary material as it moves onto the accumulator and thus effects the final twist.
- the accumulator when forming part of a twisting or stranding apparatus is disposed with the common accumulator axis disposed extending generally in the feed direction of the filamentary material.
- a twisting or stranding apparatus for lengths of filamentary material comprises a nipple 10 and accumulator 12 downstream from the nipple.
- the nipple is of conventional design and is used to group together all of the different lengths 14 of filamentary which it is required to twist together.
- the accumulator is a changing capacity accumulator for the purpose of providing "SZ" twist in the grouped lengths 16 of material while the input speed of the lengths onto the accumulator is controllably varied and the output speed is constant.
- the method of varying or maintaining constant the input and output speeds of material fed through the apparatus is conventional and will be discussed no further.
- the apparatus of this embodiment differs from conventional apparatus in the construction of accumulator 12.
- accumulator 12 comprises three accumulator rolls 17, each rotatably mounted upon its individual axis at one end of an arm 18.
- the three arms 18 are secured by their other ends to three planet gears 20, one to each planet gear.
- Each arm is non-rotatable relative to its planet gear and extends radially of the planet gear to locate its roll 17 out beyond the periphery of the gear.
- the three planet gears form part of a means to drive the rolls about a common accumulator axis and simultaneously to rotatably move the rolls towards and away from each other as will be described.
- This means also includes a sun gear 22 around which the planet gears are equally spaced apart and in driving engagement with the sun gear, the planet gears being retained in their relative positions by a trilateral planetary carrier 24 at the three corners of which the gears 22 are freely rotatably mounted.
- the planetary carrier 24 is rotatable at any desired speed about an axis, coincident with the sun gear axis, i.e: about a common accumulator axis by means of a hollow driving shaft 26, to which the carrier is coaxially secured.
- the shaft 26 is mounted within bearings 28 within a frame 30 of the apparatus.
- the sun gear 22 is independently rotatable upon a separate hollow shaft 32 concentrically mounted within the shaft 26 by means of bearings 34.
- the two shafts are driven, respectively, by means of driving pulley wheels 36, 38 and an associated driving mechanism (not shown) by which the relative rotational speeds of the sun and planet gears may be varied as desired.
- the accumulator is disposed with the common accumulator axis extending along and the individual roll axes extending parallel to the general feed direction of the grouped lengths 16 of material passing through the apparatus.
- the lengths 16 are fed from the nipple, and along the accumulator axis through the shaft 32.
- the lengths Upon reaching the end of shaft 32, the lengths extend around an end 40 of the shaft, which is suitably rounded and surface treated to minimize wear upon the material by friction, and radially outwardly to the rolls 17.
- Each roll is formed with a plurality of spaced annular grooves 42 and the lengths 16 of material pass from one roll to another in turns around the accumulator, the adjacent turns being separated by their being contained and guided within adjacent grooves 42 as shown by Figure 1.
- the lengths 16 are fed around a freely rotatable guide wheel 44 before proceeding, as twisted material, to a subsequent manufacturing process (not described).
- the wheel 44 is suitably secured to, or relative to, the planetary carrier 24 to ensure it is permanently oriented in a fixed position relative to the final roll 17 (i.e. the lower roll in Figure 1) around which the lengths 16 turn before proceeding to wheel 44.
- the ingoing speed of the lengths 16 through shaft 26 is suitably varied (in known manner) to provide "SZ" twist in the lengths leaving the accumulator at constant velocity around the wheel 44.
- Accumulator change in capacity is effected by moving the rolls 17 from innermost ( Figure 4), or closely spaced positions in which the rolls axially overlap the sun gear and lie close to its axis, to outermost or widely spaced positions ( Figure 2).
- the change in capacity from the minimum to the maximum as shown by those figures, is reflected by the difference in the distances between the rolls in Figures 2 and 4.
- each half revolution of the planet gears 22 turns the arms 18 from the innermost positions of Figure 4 to the outermost position of Figure 2 by rotation around the axes of the planet gears 20, these axes thus providing the function of accumulator capacity change axes.
- a further half revolution of the planet gear, continuing in the same direction, returns the arms to their innermost positions.
- a twisting or stranding apparatus has two in-tandem accumulators 12 each of the same design as the accumulator in the first embodiment.
- the downstream accumulator is reversed in position along the feedpath and is separated from the upstream accumulator by the use of the guide wheel 44 and another guidewheel 46 to guide the lengths 16 of material onto the rolls 17 of the downstream accumulator.
- This apparatus which has similar advantages to those discussed for the first embodiment, controls the 'SZ' twist lay operation by reducing the capacity of each accumulator as the other increases together with a required velocity change of the material as it moves along the feedpath between the accumulators.
- Figure 4 shows the upstream accumulator in its maximum capacity position and the downstream accumulator in its minimum capacity position. Both accumulators rotate, i.e. the sun and planet gears, around the common axis at a constant speed.
- inlet and outlet speeds of the lengths of material are constant as is normal in conventional apparatus employing conventional accumulators in tandem.
- an accumulator according to the invention does not change its capacity linearly between minimum and maximum capacities. This is because the rolls 17 rotate around the centres of planet gears 20 and do not progress linearly towards and away from the centre of sun gear 22. This results in a change in rate of charge and discharge of each accumulator.
- two accumulators are used in tandem and 180 out of phase, then each exactly compensates for any change in rate of the other to thereby produce a constant ingoing and outgoing speed. It should be borne in mind, however, that in view of the above characteristics of the single accumulator, it cannot be used in tandem with a conventional accumulator which changes its capacity in linear fashion.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ropes Or Cables (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Coiling Of Filamentary Materials In General (AREA)
- Transmission Devices (AREA)
Abstract
Description
- This invention relates to the twisting or stranding of lengths of filamentary material.
- In the conventional methods of twisting or stranding of filamentary lengths of material, at least one accumulator of material, or two accumulators in series are used. Conventional accumulators each comprise two accumulator rolls which are disposed radially spaced-apart along the feed path of the material and with their rotational axes parallel so that their axes.,extend normal to the feed paths. A length of material to be stranded or twisted is fed onto the accumulator by passing the material partly around each roll and from roll to roll. The maximum length of filamentary material which may be accommodated upon an accumulator (i.e. maximum accumulator capacity) is dependent upon the roll diameters, the distance apart of the rolls, and the number of passes of material between rolls which, of course, is dependent upon the axial length of the rolls.
- A conventional accumulator is caused to rotate about the feed path of the material, i.e. about a plane normal to the axial direction of the rolls, to provide a twist in the material as it enters an accumulator. When a single accumulator. is used; the resultant twist, i.e. that in the material after it has left the accumulator, is a function of the material speed of the whole accumulator about the feedpath, and the entry and exit speed of the material into and from the accumulator.
- It is sometimes desirable to produce what is commonly called an 'SZ' twist in lengths of material. This involves the introduction of twist in one (or 'S') direction for a certain distance, and then in the other (or 'Z') direction. The distance along each direction of twist before changing to the opposite direction, will be referred to in this specification as the "lay length". The SZ twist is found to have particular electrical advantages in twisted or stranded electrical cable or telecommunications cable. It is well known in the cable art as is exemplified in a paper "SZ Twisting and Stranding of Communications Cables Using Rotating Accumulators With Periodically Changing Capacity" by D. Vogelsberg as published in Proceedings of 20th International Wire and Cable Symposium.
- It is advantageous to minimize the number of twist change-over positions from one twist direction to another and for this reason, it is desirable to have each lay length as long as is practicable. A problem exists, however, in that the lay length is dependent directly upon the accumulator capacity and this is restricted because of the design and load restrictions on the accumulator. Also the throughput speed of material is restricted for similar reasons. It is found that with the material moving in one direction from roll to roll and being simultaneously rotated about the rotational axis of the accumulator, the centrifugal force tends to cause the material to lose gripping contact with the rolls in an accumulator arrangement where the rolls move towards each other to reduce the acumulator capacity. This places a maximum speed requirement both on the rotational speed of the rolls and upon the rotational speed of the accumulator and also upon the maximum distance between rolls. In addition, with the individual rolls on one hand and the accumulator on the other hand rotating about axes normal to each other, the axial length of each roll is limited because of a gyroscopic effect and thus the number of passes of material between the rolls is limited. Hence, a substantial restraint is placed upon the amount of material upon an accumulator. In addition, the gyroscopic effect makes the operation of a conventional accumulator difficult to control and substantial strain is placed upon the bearings. Further to this, one of the rolls is movable in reciprocating fashion towards and away from the other roll to change accumulator capacity. To overcome the inertia of the heavy moving parts during change in direction of the reciprocating roll, corresponding robust moving means is required.
- Similar disadvantages apply to the use of two in series accumulators. In this construction, the accumulators rotate in opposite directions and alternate in increasing and decreasing their material capacity by movement of the rolls away and towards each other.
- Accordingly, the invention provides an accumulator for a twisting or stranding apparatus comprising at least two accumulator rolls which are in radial alignment, radially spaced apart, and rotatable about substantially parallel individual axes while both are rotatable together about a common accumulator axis which is substantially parallel to the individual axes with at least one of the rolls being movable around an accumulator capacity change axis spaced from and parallel to the individual axes, towards and away from the other roll to decrease and increase the capacity of the accumulator, and means to drive the rolls about the common axis to twist or strand said lengths and simultaneously to rotatably move the at least one roll towards and away from the other roll.
- In its simplest form, the invention envisages the use of two accumulator rolls with one or both rolls being movable around said capacity change axis. In a case particularly where one only of the rolls is movable around the capacity change axis, this axis may be coincident with the common axis.
- It is desirable, however, in a preferred arrangement to have three or more accumulator rolls for the purpose of obtaining a large differential between maximum and minimum capacities of the accumulator. Particularly when three or more rolls are used, all the rolls are preferably movable in synchronism towards and away from the other rolls to decrease and increase the capacity of the accumulator between minimum and maximum capacities. Conveniently, to effect this movement, the rolls are spaced apart around the common accumulator axis and are movable in unison around individual capacity change axes between closely spaced positions near to the accumulator axis (i.e. for minimum capacity), and widely spaced positions further from the accumulator axis. Such movement is radial with respect to the accumulator axis. Hence, with the rolls rotating about the capacity change axis, movement of the rolls outwards of the accumulator axis to increase the accumulator capacity and movement inwards of that axis to decrease the capacity occur with roll rotation in the same direction around the capacity change axis. Thus, the need to change direction of movement of a roll, such as with the reciprocating movement in a conventional accumulator, is avoided together with the need of robustly designed parts to overcome the inertia of moving parts and to impart such change in movement.
- Also because the axes are all parallel and hence all the rolls rotate only in one plane of movement, then the gyroscopic effect of conventional accumulators is avoided.
- In preferred constructions involving the use of three or more rolls, the means to drive the rolls comprises a sun gear and planet gears drivably connected to the sun gear, with the rolls being mounted one upon each of the planet gears. Rotation of the planet gears at a desired relative speed to the rotational speed of the sun gear moves the rolls into and out of maximum and minimum capacity positions of the accumulator at a required rate while the actual rotational speed of the sun gear controls the amount of twist given to filamentary material as it moves onto the accumulator and thus effects the final twist.
- To provide twist to lengths of filamentary material, the accumulator when forming part of a twisting or stranding apparatus is disposed with the common accumulator axis disposed extending generally in the feed direction of the filamentary material.
- Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings in which:-
- Figure 1 is a side elevational view of a twisting or stranding apparatus;
- Figure 2 is a view in the direction of arrow II in Figure 1 showing details of an accumulator with its accumulating capacity at a maximum;
- Figures 3 and 4 are views similar to Figure 2 of the accumulator at times of different accumulator capacities; and
- Figure 5 is a view similar to Figure 1 of a second embodiment.
- In a first embodiment, shown generally in Figure 1, a twisting or stranding apparatus for lengths of filamentary material comprises a
nipple 10 andaccumulator 12 downstream from the nipple. The nipple is of conventional design and is used to group together all of thedifferent lengths 14 of filamentary which it is required to twist together. As will be described, the accumulator is a changing capacity accumulator for the purpose of providing "SZ" twist in the groupedlengths 16 of material while the input speed of the lengths onto the accumulator is controllably varied and the output speed is constant. The method of varying or maintaining constant the input and output speeds of material fed through the apparatus is conventional and will be discussed no further. - The apparatus of this embodiment differs from conventional apparatus in the construction of
accumulator 12. - As shown by Figures 1 and 2,
accumulator 12 comprises threeaccumulator rolls 17, each rotatably mounted upon its individual axis at one end of anarm 18. The threearms 18 are secured by their other ends to threeplanet gears 20, one to each planet gear. Each arm is non-rotatable relative to its planet gear and extends radially of the planet gear to locate itsroll 17 out beyond the periphery of the gear. - The three planet gears form part of a means to drive the rolls about a common accumulator axis and simultaneously to rotatably move the rolls towards and away from each other as will be described. This means also includes a
sun gear 22 around which the planet gears are equally spaced apart and in driving engagement with the sun gear, the planet gears being retained in their relative positions by a trilateralplanetary carrier 24 at the three corners of which thegears 22 are freely rotatably mounted. - The
planetary carrier 24 is rotatable at any desired speed about an axis, coincident with the sun gear axis, i.e: about a common accumulator axis by means of ahollow driving shaft 26, to which the carrier is coaxially secured. Theshaft 26 is mounted withinbearings 28 within aframe 30 of the apparatus. Thesun gear 22 is independently rotatable upon a separatehollow shaft 32 concentrically mounted within theshaft 26 by means ofbearings 34. The two shafts are driven, respectively, by means of drivingpulley wheels - In use, the accumulator is disposed with the common accumulator axis extending along and the individual roll axes extending parallel to the general feed direction of the grouped
lengths 16 of material passing through the apparatus. Thelengths 16 are fed from the nipple, and along the accumulator axis through theshaft 32. Upon reaching the end ofshaft 32, the lengths extend around anend 40 of the shaft, which is suitably rounded and surface treated to minimize wear upon the material by friction, and radially outwardly to therolls 17. Each roll is formed with a plurality of spacedannular grooves 42 and thelengths 16 of material pass from one roll to another in turns around the accumulator, the adjacent turns being separated by their being contained and guided withinadjacent grooves 42 as shown by Figure 1. From the accumulator, thelengths 16 are fed around a freelyrotatable guide wheel 44 before proceeding, as twisted material, to a subsequent manufacturing process (not described). Thewheel 44 is suitably secured to, or relative to, theplanetary carrier 24 to ensure it is permanently oriented in a fixed position relative to the final roll 17 (i.e. the lower roll in Figure 1) around which thelengths 16 turn before proceeding towheel 44. - With the capacity of the accumulator changing, as will now be described, the ingoing speed of the
lengths 16 throughshaft 26 is suitably varied (in known manner) to provide "SZ" twist in the lengths leaving the accumulator at constant velocity around thewheel 44. - Accumulator change in capacity is effected by moving the
rolls 17 from innermost (Figure 4), or closely spaced positions in which the rolls axially overlap the sun gear and lie close to its axis, to outermost or widely spaced positions (Figure 2). The change in capacity from the minimum to the maximum as shown by those figures, is reflected by the difference in the distances between the rolls in Figures 2 and 4. Thus each half revolution of the planet gears 22 turns thearms 18 from the innermost positions of Figure 4 to the outermost position of Figure 2 by rotation around the axes of the planet gears 20, these axes thus providing the function of accumulator capacity change axes. A further half revolution of the planet gear, continuing in the same direction, returns the arms to their innermost positions. - Because of the use of a planetary gear arrangement, the difference in speeds of rotation of the
planetary carrier 24 and of the sun gear may be small while providing for a practically significant number of cycles between maximum and minimum accumulator capacities per minute. For instance, with the sun gear rotating clockwise at 2000 r.p.m. and the planetary carrier rotating clockwise at 2005 r.p.m., the planet gears are driven clockwise by the sun gear at 5 r.p.m. in a case where the sun gear has the same number of teeth as each planet gear, thereby giving 5 complete cycles per minutes. Figure 3 represents a position of therolls 17 as they move towards their outer positions. With each cycle representing a complete lay length in the "S" direction and another in the "Z" direction, then this gives 10 lay lengths of material per minute. The above is merely by way of example and clearly the number of lay lengths is easily alterable by merely changing the relative speed of sun gear and planetary carrier. - Of importance in the above construction is the fact that all parts are rotating about the same or parallel axes and a gyroscopic effect is avoided. Although there is a centrifugal effect tending to lift the lengths of material passing between
rolls 16, this effect is substantially reduced compared with the combined centrifugal and gyroscopic effects in conventional accumulators. Hence, the distances betweenrolls 16 in their outer positions in Figure 2 may be greater than is practicable between rolls in conventional accumulators before the filamentary material loses its frictional grip upon the rolls. Also, the gyroscopic effect in conventional accumulators imposes design restrictions upon the inertial masses thus further limiting distance between rolls and their axial length. Both of these factors while restricting maximum capacity of the accumulators are not factors which need to be considered when designing accumulators according to the above embodiment. It follows that an accumulator as described in this embodiment may have a greater capacity change than has been possible previously. Hence, greater lays are possible. Also the accumulator parts and framework need be less bulky than is normally required to accommodate the loads in conventional accumulators, especially when gyroscopic effects and the load effects of reversing direction of reciprocating rolls in capacity change accumulators is taken into account. Reversal in direction, both rotary and reciprocatory is avoided in accumulators according to the invention and as described in the first embodiment. Although the acumulator of the first embodiment changes accumulator capacity to provide 'S' and 'Z' twists, the capacity change is effected by planetary gears rotating constantly in the same direction and at constant speed. - In a second embodiment shown in Figure 5, a twisting or stranding apparatus has two in-
tandem accumulators 12 each of the same design as the accumulator in the first embodiment. - In the second embodiment, the downstream accumulator is reversed in position along the feedpath and is separated from the upstream accumulator by the use of the
guide wheel 44 and anotherguidewheel 46 to guide thelengths 16 of material onto therolls 17 of the downstream accumulator. This apparatus, which has similar adavantages to those discussed for the first embodiment, controls the 'SZ' twist lay operation by reducing the capacity of each accumulator as the other increases together with a required velocity change of the material as it moves along the feedpath between the accumulators. Figure 4 shows the upstream accumulator in its maximum capacity position and the downstream accumulator in its minimum capacity position. Both accumulators rotate, i.e. the sun and planet gears, around the common axis at a constant speed. - In the second embodiment the inlet and outlet speeds of the lengths of material are constant as is normal in conventional apparatus employing conventional accumulators in tandem.
- It is important to note that an accumulator according to the invention and as described above does not change its capacity linearly between minimum and maximum capacities. This is because the
rolls 17 rotate around the centres of planet gears 20 and do not progress linearly towards and away from the centre ofsun gear 22. This results in a change in rate of charge and discharge of each accumulator. However, as two accumulators are used in tandem and 180 out of phase, then each exactly compensates for any change in rate of the other to thereby produce a constant ingoing and outgoing speed. It should be borne in mind, however, that in view of the above characteristics of the single accumulator, it cannot be used in tandem with a conventional accumulator which changes its capacity in linear fashion.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA360,240A CA1123279A (en) | 1980-09-15 | 1980-09-15 | Planetary 'sz' twist accumulators |
CA360240 | 1980-09-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0048130A2 true EP0048130A2 (en) | 1982-03-24 |
EP0048130A3 EP0048130A3 (en) | 1982-12-29 |
EP0048130B1 EP0048130B1 (en) | 1985-06-05 |
Family
ID=4117881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19810304121 Expired EP0048130B1 (en) | 1980-09-15 | 1981-09-09 | Planetary 'sz' twist accumulator |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0048130B1 (en) |
JP (1) | JPS5782592A (en) |
CA (1) | CA1123279A (en) |
DE (1) | DE3170854D1 (en) |
ES (1) | ES8205328A1 (en) |
FI (1) | FI71627C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995008175A1 (en) * | 1993-09-16 | 1995-03-23 | The Northampton Machinery Company Limited | Method and apparatus for stranding elongated elements into reversely twisted strand |
WO1995008012A1 (en) * | 1993-09-17 | 1995-03-23 | Commonwealth Scientific And Industrial Research Organisation | Twisting apparatus |
CN104930068A (en) * | 2015-06-28 | 2015-09-23 | 无锡锡洲电磁线有限公司 | Rotating shaft connection structure for stranding cage plate of production transposed conductor |
CN112614629A (en) * | 2020-12-14 | 2021-04-06 | 厦门润发电缆有限公司 | Electronic wire production equipment and process |
CN115385171A (en) * | 2022-09-23 | 2022-11-25 | 南通市一帆钢绳有限公司 | Transmission equipment for winding production of multi-strand steel wire rope |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1468382A (en) * | 1966-02-16 | 1967-02-03 | Sumitomo Electric Industries | Method and device for stranding several insulated wires and new products thus obtained |
US3365871A (en) * | 1966-03-04 | 1968-01-30 | Kabel Metallwerke Ghh | Accumulator stranding machine with two sets of wheels |
US3373549A (en) * | 1965-06-10 | 1968-03-19 | Western Electric Co | Methods of and apparatus for alternate reverse twisting of indefinite lengths of strand material |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS444673Y1 (en) * | 1964-12-30 | 1969-02-20 |
-
1980
- 1980-09-15 CA CA360,240A patent/CA1123279A/en not_active Expired
-
1981
- 1981-09-09 EP EP19810304121 patent/EP0048130B1/en not_active Expired
- 1981-09-09 DE DE8181304121T patent/DE3170854D1/en not_active Expired
- 1981-09-14 JP JP14538281A patent/JPS5782592A/en active Pending
- 1981-09-14 FI FI812856A patent/FI71627C/en not_active IP Right Cessation
- 1981-09-15 ES ES505503A patent/ES8205328A1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3373549A (en) * | 1965-06-10 | 1968-03-19 | Western Electric Co | Methods of and apparatus for alternate reverse twisting of indefinite lengths of strand material |
FR1468382A (en) * | 1966-02-16 | 1967-02-03 | Sumitomo Electric Industries | Method and device for stranding several insulated wires and new products thus obtained |
US3365871A (en) * | 1966-03-04 | 1968-01-30 | Kabel Metallwerke Ghh | Accumulator stranding machine with two sets of wheels |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995008175A1 (en) * | 1993-09-16 | 1995-03-23 | The Northampton Machinery Company Limited | Method and apparatus for stranding elongated elements into reversely twisted strand |
US5727375A (en) * | 1993-09-16 | 1998-03-17 | The Northampton Machinery Company Limited | Method and apparatus for stranding elongated elements into reversely twisted strand |
WO1995008012A1 (en) * | 1993-09-17 | 1995-03-23 | Commonwealth Scientific And Industrial Research Organisation | Twisting apparatus |
AU683932B2 (en) * | 1993-09-17 | 1997-11-27 | Commonwealth Scientific And Industrial Research Organisation | Twisting apparatus |
US5758483A (en) * | 1993-09-17 | 1998-06-02 | Commonwealth Scientific & Industrial Research Organisation | Twisting apparatus |
KR100352244B1 (en) * | 1993-09-17 | 2002-12-26 | 커먼웰쓰 사이언티픽 앤드 인더스트리얼 리서치 오가니제이션 | Twisting device |
CN104930068A (en) * | 2015-06-28 | 2015-09-23 | 无锡锡洲电磁线有限公司 | Rotating shaft connection structure for stranding cage plate of production transposed conductor |
CN112614629A (en) * | 2020-12-14 | 2021-04-06 | 厦门润发电缆有限公司 | Electronic wire production equipment and process |
CN115385171A (en) * | 2022-09-23 | 2022-11-25 | 南通市一帆钢绳有限公司 | Transmission equipment for winding production of multi-strand steel wire rope |
Also Published As
Publication number | Publication date |
---|---|
EP0048130B1 (en) | 1985-06-05 |
FI71627C (en) | 1987-01-19 |
FI812856L (en) | 1982-03-16 |
DE3170854D1 (en) | 1985-07-11 |
ES505503A0 (en) | 1982-06-01 |
EP0048130A3 (en) | 1982-12-29 |
JPS5782592A (en) | 1982-05-24 |
ES8205328A1 (en) | 1982-06-01 |
FI71627B (en) | 1986-10-10 |
CA1123279A (en) | 1982-05-11 |
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