EP2166135A1 - Machine for yarn twisting apt to be used as a twisting machine or as a cord machine - Google Patents

Machine for yarn twisting apt to be used as a twisting machine or as a cord machine Download PDF

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Publication number
EP2166135A1
EP2166135A1 EP09170068A EP09170068A EP2166135A1 EP 2166135 A1 EP2166135 A1 EP 2166135A1 EP 09170068 A EP09170068 A EP 09170068A EP 09170068 A EP09170068 A EP 09170068A EP 2166135 A1 EP2166135 A1 EP 2166135A1
Authority
EP
European Patent Office
Prior art keywords
yarn
machine
assembly
block
twisting
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Withdrawn
Application number
EP09170068A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2166135A8 (en
Inventor
Fabio Gamberini
Alessandro Tegoni
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.)
Sima Industrie Meccaniche Affini A R Soc
Original Assignee
Sima Industrie Meccaniche Affini A R Soc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sima Industrie Meccaniche Affini A R Soc filed Critical Sima Industrie Meccaniche Affini A R Soc
Publication of EP2166135A1 publication Critical patent/EP2166135A1/en
Publication of EP2166135A8 publication Critical patent/EP2166135A8/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/18—Driven rotary elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a machine for yarn twisting, apt to be used as a twisting machine or as a cord machine.
  • Machines for twisting natural or synthetic fibre yarns comprise a yarn inlet station, a device for applying a predefined tension to the yarn, a pulley for drawing the yarn and a collecting assembly for collecting the cross reel or the cop of said yarn.
  • a yarn-braking device consisting of an assembly that contrasts the drawing of the yarn towards the collecting assembly.
  • the yarn-braking device consists of a pulley on which the yarn entering the machine is wound.
  • the main drawback of the machines currently available on the market consists in the fact that the yarn-braking device is hydraulically operated.
  • Said yarn-braking device comprises an appropriately-sized reservoir, an indicator of the level of the liquid in the reservoir, a hydraulic pump, a filter, a pressure gauge, a pressure regulator and a series of ducts (pipes, fittings, etc.) provided with seals.
  • a hydraulic pump In addition to the structural complexity, large overall dimensions and large number of components of said yarn-braking device, it is also difficult to adjust the hydraulic yarn-braking device to make said pulley apply the appropriate resistance to contrast the drawing of the yarn towards the collecting assembly.
  • the braking action of the yarn-braking device results in an increase in the temperature of the pumped liquid so that, in order to avoid overheating, which can be dangerous and harmful, said liquid must be cooled for example by providing the yarn-braking device with a cooling device or by increasing the amount of liquid in the reservoir and thus providing the assembly with a larger reservoir.
  • the yarn-braking device must be checked periodically, which necessarily involves machine downtimes, to avoid the presence of air bubbles and of solid residues and to check the seal of all parts of the yarn-braking device.
  • the purpose of the present invention is to provide a machine for yarn twisting, apt to be used as a twisting machine or as a cord machine, that overcomes the drawbacks described above and that is thus provided with a yarn-braking device of simple construction, that has reduced overall dimensions, can be adjusted easily and quickly and does not require periodical tests and inspections.
  • a machine for yarn twisting apt to be used as a twisting machine or as a cord machine, comprising in succession:
  • FIG. 1 designated as a whole by number 1 is a machine for yarn twisting 2, apt to be used as a twisting machine or as a cord machine, comprising in succession:
  • Means 11 normally consist of an electric motor 12 and a power transmission assembly 13.
  • machine 1 Said components of machine 1 are only described briefly in that they are of the type known in the prior art with the exception of yarn-braking device 5 as described below.
  • yarn-braking device 5 comprises an electric motor 14 on the output shaft 15 of which is keyed a pulley 16 of the type provided with a plurality of annular races 17 wherein yarn 2 is twisted as it moves towards the element 6; the pulley 16 having an axis of rotation X.
  • Machine 1 as illustrated in figure 3 also comprises an electronic control unit 18 apt to control means 11 and electric motor 14.
  • control unit 18 comprises a memory block 21 for storing, for each diameter and material of yarn 2, the contrasting actions which said yarn-braking device 5 must exert against the advancement of said yarn 2 towards the collecting assembly 10.
  • Control unit 18 also comprises a block 22 controlling means 11, a block 23 controlling electric motor 14, and a block 24 receiving signals from sensors 25 concerning values measured in machine 1.
  • a first sensor 25 is apt to detect the drawing of yarn 2 for example between the elements 6 and 7 and thus of detecting whether the yarn 2 is under tension or slack due to being put under less tension than required for the assembly 10 to form a correct cross reel or cop of the yarn.
  • a second sensor 25 is apt to detect a possible defibration of yarn 2, and namely to detect whether said yarn 2 is drawn in such a way that could jeopardise its integrity, thus leading to yarn 2 breaking.
  • a third sensor 25 is installed in the inlet station 3 and is apt to detect the diameter of yarn 2.
  • Connected to control unit 18 are a block 26 through which the user can plan the operation of the machine 1 and a display block 27 that displays the measurements in question and any alarm messages.
  • the contrasting action exerted by the yarn-braking device 5 can be exerted by applying a braking force against the advancement of yarn 2 from inlet station 3 to twisting element 6.
  • Said braking force can be exerted by applying a braking torque to pulley 16 either by means of a command aimed at determining the rotation of pulley 16 (about the axis X) in the direction of advancement of yarn 2 but at a slower speed than that of the advancement of yarn 2 or by means of a command aimed at determining the rotation of pulley 16 (about the axis X) in the opposite direction to that of the advancement of yarn 2.
  • control unit 18 can thus adjust the value of the braking torque on the basis of the data detected by sensors 25 and the control settings of means 11 and of motor 14, and in practice if control unit 18 counts the value of the braking torque as being outside a range set in memory block 21 for the specific operating conditions, it sends a command to change the value of said braking torque.
  • the yarn-braking device that is provided is of reduced dimensions, can be assembled easily and quickly and consists of a small number of components with all the subsequent advantages in terms of costs of production, assembly and maintenance. Moreover the problems typically associated with a hydraulic motor such as the seal, difficulty with adjustment, cooling of the pumped liquid, etc. have all been overcome. It is apparent that an electric motor is far less complex to control than a hydraulic motor.
  • the machine according to the present invention is provided with a control unit that automatically adjusts the control of the yarn-braking device, also according to the operating conditions detected by means of the sensors.
  • the electric motor of the yarn-braking device could be used as an electric generator so that the heat that was generated using a hydraulic motor is now converted into electric power that can be used in other stations of the plant of which the machine according to the present invention is part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP09170068A 2008-09-11 2009-09-11 Machine for yarn twisting apt to be used as a twisting machine or as a cord machine Withdrawn EP2166135A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000551A ITBO20080551A1 (it) 2008-09-11 2008-09-11 Macchina per la torcitura di filati utilizzabile come torcitoio o come cordatrice

Publications (2)

Publication Number Publication Date
EP2166135A1 true EP2166135A1 (en) 2010-03-24
EP2166135A8 EP2166135A8 (en) 2010-06-09

Family

ID=40756863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09170068A Withdrawn EP2166135A1 (en) 2008-09-11 2009-09-11 Machine for yarn twisting apt to be used as a twisting machine or as a cord machine

Country Status (2)

Country Link
EP (1) EP2166135A1 (it)
IT (1) ITBO20080551A1 (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20100073A1 (it) * 2010-02-11 2011-08-12 S I M A Societa Ind Meccaniche Affini Torcitoio per la realizzazione di erba artificiale
BE1023564B1 (nl) * 2015-11-03 2017-05-05 VAN DE WIELE Michel NV Garenspanningssysteem en werkwijze voor het onder spanning houden van een garen dat van een garenopslagsysteem afgenomen wordt naar een garenafneemsysteem van een weefmachine toe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB770037A (en) * 1954-02-13 1957-03-13 Dunlop Rubber Co Apparatus for tensioning filamentary material
GB921138A (en) * 1960-03-02 1963-03-13 Dunlop Rubber Co Apparatus for the manufacture of reinforced hose
US3885604A (en) * 1973-04-09 1975-05-27 Avon Rubber Co Ltd Making reinforced fabrics
DE2854007A1 (de) * 1978-12-14 1980-07-03 Erich Brosa Fadenbremse
WO2004002866A1 (de) * 2002-06-28 2004-01-08 Contitech Luftfedersysteme Gmbh Fadenbremse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB770037A (en) * 1954-02-13 1957-03-13 Dunlop Rubber Co Apparatus for tensioning filamentary material
GB921138A (en) * 1960-03-02 1963-03-13 Dunlop Rubber Co Apparatus for the manufacture of reinforced hose
US3885604A (en) * 1973-04-09 1975-05-27 Avon Rubber Co Ltd Making reinforced fabrics
DE2854007A1 (de) * 1978-12-14 1980-07-03 Erich Brosa Fadenbremse
WO2004002866A1 (de) * 2002-06-28 2004-01-08 Contitech Luftfedersysteme Gmbh Fadenbremse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20100073A1 (it) * 2010-02-11 2011-08-12 S I M A Societa Ind Meccaniche Affini Torcitoio per la realizzazione di erba artificiale
EP2360300A1 (en) * 2010-02-11 2011-08-24 Sima Group S.r.l. Twisting machine for producing artificial grass
BE1023564B1 (nl) * 2015-11-03 2017-05-05 VAN DE WIELE Michel NV Garenspanningssysteem en werkwijze voor het onder spanning houden van een garen dat van een garenopslagsysteem afgenomen wordt naar een garenafneemsysteem van een weefmachine toe
WO2017077454A1 (en) * 2015-11-03 2017-05-11 Nv Michel Van De Wiele Yarn tensioning system and method for keeping a yarn which is taken from a yarn storage system to a yarn take-off system of a weaving machine under tension
CN108349680A (zh) * 2015-11-03 2018-07-31 米歇尔.范德威尔公司 在张力下保持从纱线存放系统取出至织机的纱线输出系统的纱线的纱线张紧系统和方法
US10633213B2 (en) 2015-11-03 2020-04-28 Nv Michel Van De Wiele Yarn tensioning system and method for keeping a yarn which is taken from a yarn storage system to a yarn take-off system of a weaving machine under tension
EP3842371A1 (en) * 2015-11-03 2021-06-30 Vandewiele NV Yarn tensioning system for keeping a yarn which is taken from a yarn storage system to a yarn take-off system of a weaving machine under tension

Also Published As

Publication number Publication date
ITBO20080551A1 (it) 2010-03-12
EP2166135A8 (en) 2010-06-09

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