US3859778A - Device for stretching round twisted products in rope making machines - Google Patents

Device for stretching round twisted products in rope making machines Download PDF

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Publication number
US3859778A
US3859778A US432652A US43265274A US3859778A US 3859778 A US3859778 A US 3859778A US 432652 A US432652 A US 432652A US 43265274 A US43265274 A US 43265274A US 3859778 A US3859778 A US 3859778A
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United States
Prior art keywords
pulley
stretching
pulleys
twisted
rope
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Expired - Lifetime
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US432652A
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English (en)
Inventor
Pavel Petrovich Nesterov
Georgy Ivanovich Vlaschenko
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    • 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
    • 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
    • D07B3/005—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material with alternating twist directions
    • 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
    • D07B3/06—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 and are spaced radially from the axis of the machine, i.e. basket or planetary-type stranding machine
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/12—Making ropes or cables from special materials or of particular form of low twist or low tension by processes comprising setting or straightening treatments

Definitions

  • ABSTRACT The device is used in a rope machine and comprises two drive pulleys of different diameters of which the smaller-diameter pulley serves for drawing out the twisted product immediately after its having been spun, while the larger-diameter pulley is for stretching the product. Spaced somewhat apart from the pulleys is a contrivance for passing the twisted product from one pulley to the other.
  • the pulleys are interconnected through a friction clutch which is kinematically associated with a self-contained drive controlled by the stretching force transducer adapted to interact with the member of the contrivance which is under maximum load imposed by the tightening force of the twisted product, the transducer producing a signal proportional to the force so as to enable the torque transmitted by the friction clutch from one pulley to the other, to be changed in the course of stretching process.
  • a friction clutch which is kinematically associated with a self-contained drive controlled by the stretching force transducer adapted to interact with the member of the contrivance which is under maximum load imposed by the tightening force of the twisted product, the transducer producing a signal proportional to the force so as to enable the torque transmitted by the friction clutch from one pulley to the other, to be changed in the course of stretching process.
  • the present invention relates generally to rope machines and more specifically it relates to devices for stretching round twisted products, viz. ropes or rope strands.
  • These devices have two coaxial rigidly interconnected pulleys kinematically associated with the rope machine drive.
  • the pulleys are of different diameters, the smaller-diameter one serving to receive the rope after its having been spun and the larger-diameter pulley, to stretch the rope by virtue of the difference in the pulley diameters.
  • a guide roller Spaced somewhat apart from the pulleys is a guide roller for the rope to pass from the smaller-diameter pulley to the larger-diameter one.
  • a rigid interconnection of the pulley involves a strictly preset difference in the diameters thereof which depends upon the characteristics of the ropes under stretching in the afore-discussed devices.
  • a device for stretching round twisted products provided in a rope machine and comprising two coaxial interconnected drive pulleys of different diameters of which the smaller-diameter pulley serves to draw out the twisted product just after its having been spun, while the larger-diameter pulley is for stretching said twisted product, and a contrivance for passing the latter from the smaller-diameter pulley to the largerdiameter one, the contrivance being spaced somewhat apart from the pulleys.
  • the pulleys are interconnected through a friction clutch which is kinematically associated with a self-contained drive controlled against a signal from a stretching force transducer adapted to interact with a member of the contrivance which is under maximum load imposed by the tightening force of the twisted product, and to produce a signal proportional to the force, whereby a pos sibility is provided to change the torque transmitted from the smaller-diameter pulley via the friction clutch to the larger-diameter pulley.
  • the device for stretching round twisted products enables an automatic control of the tightening force of the product during the stretching process thereof.
  • the device is suitable for stretching a variety of rope types and sizes having diverse mechanical characteristics.
  • FIG. 1 is a general side-elevation view of a rope machine featuring a device for stretching round twisted products, according to the invention
  • FIG. 2 is a top view of FIG. 1;
  • FIG. 3 is a schematic circuit diagram of a stretching force transducer signal amplifier
  • FIG. 4 is a schematic circuit diagram of a motor control
  • FIG. 5 is a schematic power circuit diagram of motor connection to supply mains.
  • the rope machine has a rotor 1 (FIGS. 1,2) of the basket type having reels 2 which carry rope strands 3, the reels being arranged circumferentially thereon.
  • the rotor l is set on a shaft 4 which is connected to a drive 5 and is made hollow for a core 6 of a rope 7 to pass through.
  • the rotor 1 rests upon supporting rolls 8, whereby the shaft 4 is relieved from bending stresses.
  • the shaft 4 is mounted on stanchions 9 and 10.
  • the strands 3 from the reels 2 and the core 6 are fed into rope spinning dies 11, wherein the rope is formed.
  • a device 12 for stretching the rope 7 is provided.
  • the contrivance comprises a smaller-diameter pulley 13 serving to draw out the rope 7 from the dies 1]; arranged coaxially with the pulley 113 is a larger-diameter pulley 14 adapted to develop a tightening force applied to the rope 7 in the course of its stretching.
  • the pulleys 13 and 14 are interconnected through a friction clutch 15 of any design suitable for the purpose.
  • the pulley 13 is connected to the rope machine drive 5 through a reduction unit 16, a :shaft 17, a gearing 18 and a shaft 4.
  • a contrivance is provided made as a train 19 of rollers, spaced somewhat apart from the pulleys l3 and 14.
  • the friction clutch 15 is connected through a reduction unit 20 to a motor 21.
  • a stretching force tranducer 23 is adapted to interact with a roller 22 of the train 19 of rollers, to which a maximum effective force developed by the rope 7 is applied, the transducer being electrically connected to the motor 21 to control the operation thereof.
  • Used as the stretching force transducer may be a magnetoelastic transducer of any construction suitable for the purpose.
  • An electric connection of the magnetoelastic transducer 23 to the motor 21 is carried out through a power transformer 24 (FIG. 3) which is connected to an A.C. main by way of a switch 25 and a. fuse 26. Electric current is stabilized by means of capacitors 27 and a resistor 28 and then fed to atransformer primary 29, while its secondaries 30 supply current, via diodes 31, to a magnetic amplifier 32 which comprises resistors 33, 34, 35, 36, 37, 38, 39, relays 40, 41, 42, induction coils 43, 44, 45, 46, 47 and diodes 48.
  • the transducer 23 is connected to the secondary 30 of the power transformer 24 and to the magnetic amplifier through a plug connector 50.
  • the magnetic amplifier 32 is tuned by means of resistors 51, 52 and controlled from a wafer switch 53.
  • the magnetoelastic transducer 23 has a magnetizing coil 54 and a coil 55 producing a signal which is delivered to the magnetic amplifier 32.
  • an indicator 56 is cut into the circuit, having any construction suitable for the purpose.
  • the motor 21 can be controlled either automatically by closing contacts 64 or manually by closing contacts 65.
  • the control circuit of the motor 21 is currentsupplied through a fuse 66.
  • the device for stretching round twisted products operates as follows.
  • the reels 2 carrying the rope strands 3 wound thereon are set into the rotor 1 of the rope machine, whereupon the strands 3 are passed through the dies 11 to which the rope core is also fed through the hollow shaft and the holes provided in the stanchions 9 and 10.
  • the drive 5 is put into operation, and the rope 7 starts to be formed; after producing a definite length of rope, the'drive 5 is disengaged and the rope 7 is guided to the contrivance 12 by winding a few turns of the rope 7 around the pulley 13, whereupon the latter envelops the train 19 of rollers and is carried to the pulley 14 and wound thereon in a few turns; finally the rope 7 is led to the take-up reel which is not shown in the drawing.
  • the rope 7 under stretching exerts pressure upon the transducer 23 while acting through the roller 22; depending upon the force applied thereto, the transducer produces an electric signal which is sent to the magnetic amplifier 32. Then the voltage-amplified signal is impressed upon the relays 40, 41, 42 which effects an automatic control of the motor 21 by causing the latter to rotate in a corresponding direction depending upon the variation in the stretching force.
  • the relay 41 is preset for a normal estimated stretching force, the relay 42, for a maximum permissible stretching force and the relay 40, for a minimum permissible force effective in estimated stretching procedure.
  • the motor is kinematically associated with the friction clutch through the reduction unit 20, the clutch transmitting the predetermined torque from the pulley 13 to the pulley 14.
  • the frictional coupling of the clutch 15 with the pulleys is either strengthened or loosened until thestretching force reaches the preset magnitude, i.e. till the system is brought to the state of equilibrium.
  • the signal produced by the transducer 23 arrives at the magnetic amplifier 32 and from thence to the relays 40, 41, 42.
  • the relay 41 that starts operating to control the operation of the contactors 58 interconnected with the contactors 63.
  • the motor 21 is in this case deenergized.
  • the relay 42 starts operating to control the operation of the contactors 59 interconnected with the contactors 63, and the motor 21 becomes energized so as to loosen the frictional coupling of the clutch 15 with the pulley 13. The process of loosening the coupling occurs until the specified stretching force is obtained, whereupon the intensity of the signal produced by the transducer 23 is lowered correspondingly and the relay 41 starts operating to open the power supply circuit of the motor 21, while acting through the contactors 58 and 63.
  • the relay 40 starts operating to control the operation of the contactors 57 interconnected with the contactors 63, and the motor 21 becomes energized so as to strengthen the frictional coupling of the clutch 15 with the both pulleys until the normal stretching force is obtained, whereupon the intensity of the signal from the transducer 23 gets higher and the relay 41 starts operating to open the power supply circuit of the motor 21, while acting through the contactors 58 and 63.
  • a device for stretching round twisted products adapted to be used in rope machines and comprising: a first pulley adapted to draw out the twisted product just after its having been spun; means for imparting a torque to said first pulley; a second pulley adapted to stretch said twisted products and having a diameter somewhat larger than that of said first pulley; a friction clutch being disposed between said first and second pulleys and adapted to transmit the torque from said first pulley to said second pulley for stretching said twisted products; a self-contained drive kinematically associated with said friction clutch; and a device adapted to pass said twisted products from one of said first and second pulleys to the other, said device being spaced somewhat apart from said first and second pulleys; a stretching force transducer adapted to interact with a member of said device which is under maximum load imposed by the twisted product tightening force, and to produce a signal proportional to said force to control said self-contained drive, whereby the torque transmitted by Way of

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  • Ropes Or Cables (AREA)
  • Wire Processing (AREA)
US432652A 1974-01-04 1974-01-11 Device for stretching round twisted products in rope making machines Expired - Lifetime US3859778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT5874*#A AT330032B (de) 1974-01-04 1974-01-04 Vorrichtung zum streckziehen von seilen od.dgl.

Publications (1)

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US3859778A true US3859778A (en) 1975-01-14

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US432652A Expired - Lifetime US3859778A (en) 1974-01-04 1974-01-11 Device for stretching round twisted products in rope making machines

Country Status (4)

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US (1) US3859778A (enExample)
JP (1) JPS50112530A (enExample)
AT (1) AT330032B (enExample)
DE (1) DE2401019A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674581A (zh) * 2015-01-19 2015-06-03 吴贤文 一种电动编绳装置
IT202300001200A1 (it) * 2023-01-27 2024-07-27 Eurolls S P A Linea di produzione e procedimento per produrre automaticamente prodotti metallici filiformi

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188533A (ja) * 1982-04-30 1983-11-04 Hitachi Cable Ltd 弛度抑制型電線の延線方法
DE10085343B4 (de) * 1999-12-23 2010-09-30 Haggie Wire Rope Manufacturers A Division Of Anglo Operations Limited Of Cleveland Spannungskontrolle in einer Maschine zur Herstellung von Seilen

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955540A (en) * 1931-04-01 1934-04-17 Waterbury Tool Co Driving mechanism
US2037506A (en) * 1927-01-06 1936-04-14 American Cable Co Inc Wire rope and machine for and method of making
US2524439A (en) * 1946-12-31 1950-10-03 Roeblings John A Sons Co Method and apparatus for treating wire products
US2940883A (en) * 1956-05-01 1960-06-14 United States Steel Corp Apparatus for hot prestressing armored cable
US3061997A (en) * 1957-03-26 1962-11-06 Delore Sa Geoffroy Method and apparatus for producing improved conductor cables
US3409958A (en) * 1965-08-26 1968-11-12 Zinser Textilmaschinen Gmbh Apparatus for stretching and shrinking yarns
US3416205A (en) * 1966-07-29 1968-12-17 Karlsruhe Augsburg Iweka Tension adjustment arrangement for stretching and winding machines
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3509595A (en) * 1964-12-14 1970-05-05 Phillips Petroleum Co Tension control of running thermoplastic filaments

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037506A (en) * 1927-01-06 1936-04-14 American Cable Co Inc Wire rope and machine for and method of making
US1955540A (en) * 1931-04-01 1934-04-17 Waterbury Tool Co Driving mechanism
US2524439A (en) * 1946-12-31 1950-10-03 Roeblings John A Sons Co Method and apparatus for treating wire products
US2940883A (en) * 1956-05-01 1960-06-14 United States Steel Corp Apparatus for hot prestressing armored cable
US3061997A (en) * 1957-03-26 1962-11-06 Delore Sa Geoffroy Method and apparatus for producing improved conductor cables
US3509595A (en) * 1964-12-14 1970-05-05 Phillips Petroleum Co Tension control of running thermoplastic filaments
US3409958A (en) * 1965-08-26 1968-11-12 Zinser Textilmaschinen Gmbh Apparatus for stretching and shrinking yarns
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3416205A (en) * 1966-07-29 1968-12-17 Karlsruhe Augsburg Iweka Tension adjustment arrangement for stretching and winding machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674581A (zh) * 2015-01-19 2015-06-03 吴贤文 一种电动编绳装置
IT202300001200A1 (it) * 2023-01-27 2024-07-27 Eurolls S P A Linea di produzione e procedimento per produrre automaticamente prodotti metallici filiformi
WO2024157297A1 (en) * 2023-01-27 2024-08-02 Eurolls S.P.A. Production line and method for automatically producing threadlike metal products

Also Published As

Publication number Publication date
JPS50112530A (enExample) 1975-09-04
ATA5874A (de) 1975-08-15
AT330032B (de) 1975-08-15
DE2401019A1 (de) 1975-07-17

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