EP0074932A1 - Verfahren und Vorrichtung zum Vermindern der Torsion in Walzen grosser Länge - Google Patents

Verfahren und Vorrichtung zum Vermindern der Torsion in Walzen grosser Länge Download PDF

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Publication number
EP0074932A1
EP0074932A1 EP82830220A EP82830220A EP0074932A1 EP 0074932 A1 EP0074932 A1 EP 0074932A1 EP 82830220 A EP82830220 A EP 82830220A EP 82830220 A EP82830220 A EP 82830220A EP 0074932 A1 EP0074932 A1 EP 0074932A1
Authority
EP
European Patent Office
Prior art keywords
torsion
locking
procedure
shafts
spinning frame
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Withdrawn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
EP82830220A
Other languages
English (en)
French (fr)
Inventor
Giuseppe Bruni
Vittorio Vernocchi
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.)
Officine Savio SpA
Savio SpA
Original Assignee
Officine Savio SpA
Savio SpA
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 Officine Savio SpA, Savio SpA filed Critical Officine Savio SpA
Publication of EP0074932A1 publication Critical patent/EP0074932A1/de
Withdrawn legal-status Critical Current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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D01H5/82—Arrangements for coupling roller sections

Definitions

  • This invention concerns a procedure for locking the torsion in long shafts connected together mechanically; the device of the invention is applied advantageously, but not essentially, to the shafts of long ring spinning frames.
  • the invention has the purpose of pre- .venting the relative movements of two or more shafts in only .one direction of rotation when said shafts are not being rotated.
  • the invention can be applied to one or more shafts which are or are not parallel to each other.
  • the device can be fitted to at least one end of a shaft located opposite to the end where the input of motion takes place.
  • the device of the invention can be fitted to. shafts which are driven at their end or which are driven at an intermediate position
  • the invention can be applied in particular, but not only, to ring spinning frames and can be applied wherever conditions exist which can be related to or be likened to those of ring spinning frames.
  • the device for drafting the roving consists not only of the organs able to exert pressure on the roving but also of two or more shafts which have a small diameter in relation to their length and which in this case have to rotate at speeds different from each other but having a constant reciprocal ratio.
  • connection between the cylinders is continuous, that is . to say, it is always working both when the machine is operating and also when the machine is stopped; however, this does not take into account the fact that such a connection .is not needed when the machine is running normally.
  • this purpose is fulfilled .by employing a rigid connection which only works during the .start-up and stopping phases.
  • the invention can also be applied where there are one .or more shafts.
  • Advantages of this invention are the elimination of unnecessary extra consumption of energy and of wear on the pear wheels and on the device itself and also the suppres-. sion of a possible source of unpleasant noise during the working cycle of the machine.
  • This invention is displayed in a procedure for locking the torsion of shafts in long spinning frames, said procedure being characterized by comprising the following phases:.
  • the invention is embodied in a device for. carrying out said procedure and for locking the torsion of. .shafts of long spinning frames, said device being characterized by including in cooperation and coordination: .
  • the spinning frame comprises in its drafting unit three shafts numbered 10 (drafting), II (accompanying) and 12 (feeding) which rotate at the respective angular speeds V 1 , V 2 and V 3 transmitted to said shafts with a constant ratio by the motor 13, which is connected here to the drive shaft 10 with belts, gear wheels or like connecting means.
  • said ratio has to correspond to the difference V 1 > V 2 and is established by the ratios between the pairs of gear wheels 113-110, IIO-I4, 14-111, 111-15 and 15-112, said gear. .wheels 14 and 15 being idler gear wheels, whereas the gear. .wheels 111-112 are solidly fixed to the shafts II and 12 re.- spectively.
  • each of said shafts 10, 11 and 12 cooper-. .ates with its relative pressure roller 210, 211 and 212 re-. spectively.
  • the device 20 of the invention is fitted to the spin- .ning frame at the end of the latter opposite to the powered. .end thereof.
  • the device 20 of the invention comprises transmission. .means 16 rigidly fixed to a shaft of the spinning frame, in. .this case to the drive shaft 10; said transmission means 16. .consist here of a gear wheel 116 keyed onto said shaft 10. and cooperating through a gear wheel 3I6 with another gear . wheel 216 keyed onto an idler shaft 311, whereby said shaft. 311 is equipped at its end with drivable coupling means 2I . which connect said shaft 311 to the shaft II at least temporarily.
  • Said coupling means 21 consist here of a solenoid.
  • .clutch 121 that is actuated electrically, but could also con- .sist of suitable mechanical coupling means such as clutches, .claw clutches, ratchet gears or like means which can be act- .uated with electromechanical or electromagnetic means or the like.
  • the device of the invention comorises con- .trol means 22 able to actuate said coupling means 21 to suit .the speed of the shafts of the spinning frame, said control. .means 22 being connected to the motor 13 of the spinning .frame in this instance.
  • control means 22 The specific make-up of the said control means 22 is .shown diagrammatically in Fig.3.
  • the control means 22 for starting and stopping the mot- .or 13, and also the coupling means 21 receive the mains sup- .ply or line supply current 8I, which feeds the motor 13 as well, through a voltage transformer 82 having several out-. puts.
  • thermal protective means 84 are also pre-arranged in the supply connections of said motor 13.
  • Said coil 85 makes the contacts 89 close so that the .motor 13 is started. At the same time said coil 85 makes the contact 87 close, said contact 87 permitting said coil 85 to charge itself, and also makes the contact 88 close so as to connect the circuit 90 to the derived supply 86.
  • the timer 92 can be supplied through the contact 91, which is of a normally closed type. Being fed, said timer 92 closes the contact 24 and thus enables the coil 93 to be fed.
  • said coil 93 closes the self-charge contact 94 and opens the contact 91 so as to start the timing cycle. for the opening of said contact 24 after a pre-set time.
  • the coil 93 closes the contact 97 of the circuit 95 so that the coupling means 21 are fed with current converted into direct current by the bridge rectifier 96.
  • the stopping of the motor 13 and the disengagement of . .the coupling means 2I can take place at the time T 2 owing to lack of mains current or owing to the action of the relative protective devices, or can be obtained by pressing the push. .button 23, which is of a normally closed type.
  • said push button 23 like the thermal protect- .ive contact 98, is located in series with the coil 85 and is therefore able to cut offi the supply thereto when it is opened.
  • the contacts 89 can be opened so as to stop .the motor 13 and the contact 88 can be opened so as to cut . .off the supply to the coil 93.
  • said coil 93 permits the contact. 9.1 to close and also enables .the self-charge contact 94 and. .the contact 95 which feeds the coupling means 21, to open. again.
  • the final stooping of the spinning frame takes place at . the time T F .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP82830220A 1981-09-02 1982-08-02 Verfahren und Vorrichtung zum Vermindern der Torsion in Walzen grosser Länge Withdrawn EP0074932A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8183454A IT8183454A0 (it) 1981-09-02 1981-09-02 Dispositivo adottante tale procedimento per il bloccaggio procedimento. torsione in alberi lunghi e
IT8345481 1981-09-02

Publications (1)

Publication Number Publication Date
EP0074932A1 true EP0074932A1 (de) 1983-03-23

Family

ID=11322130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830220A Withdrawn EP0074932A1 (de) 1981-09-02 1982-08-02 Verfahren und Vorrichtung zum Vermindern der Torsion in Walzen grosser Länge

Country Status (2)

Country Link
EP (1) EP0074932A1 (de)
IT (1) IT8183454A0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561152A (en) * 1983-02-08 1985-12-31 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Draft roll system for spinning machines
EP0327921A1 (de) * 1988-02-12 1989-08-16 Maschinenfabrik Rieter Ag Ringspinnmaschine
DE3801880C3 (de) * 1988-01-22 2000-07-13 Truetzschler Gmbh & Co Kg Streckwerk in Spinnereimaschinen, insbesondere Regulierstreckwerk in Strecken
JP2007023434A (ja) * 2005-07-19 2007-02-01 Toyota Industries Corp 紡機におけるドラフト装置
WO2007144133A1 (de) * 2006-06-14 2007-12-21 Oerlikon Textile Gmbh & Co. Kg Streckwerk für spinnereimaschinen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE94895C (de) * 1900-01-01
DE2930327A1 (de) * 1979-07-26 1981-02-19 Schlafhorst & Co W Wellenpaar fuer eine textilmaschine, insbesondere spinnmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE94895C (de) * 1900-01-01
DE2930327A1 (de) * 1979-07-26 1981-02-19 Schlafhorst & Co W Wellenpaar fuer eine textilmaschine, insbesondere spinnmaschine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561152A (en) * 1983-02-08 1985-12-31 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Draft roll system for spinning machines
DE3801880C3 (de) * 1988-01-22 2000-07-13 Truetzschler Gmbh & Co Kg Streckwerk in Spinnereimaschinen, insbesondere Regulierstreckwerk in Strecken
EP0327921A1 (de) * 1988-02-12 1989-08-16 Maschinenfabrik Rieter Ag Ringspinnmaschine
US4987734A (en) * 1988-02-12 1991-01-29 Rieter Machine Works, Ltd. Ring spinning machine
JP2007023434A (ja) * 2005-07-19 2007-02-01 Toyota Industries Corp 紡機におけるドラフト装置
EP1746188A3 (de) * 2005-07-19 2009-12-09 Kabushiki Kaisha Toyota Jidoshokki Streckwerk einer Spinnmaschine und Verfahren zu dessen Steuerung
JP4670522B2 (ja) * 2005-07-19 2011-04-13 株式会社豊田自動織機 紡機におけるドラフト装置
WO2007144133A1 (de) * 2006-06-14 2007-12-21 Oerlikon Textile Gmbh & Co. Kg Streckwerk für spinnereimaschinen
CN101460668B (zh) * 2006-06-14 2012-01-04 欧瑞康纺织有限及两合公司 用于纺纱机的牵伸装置

Also Published As

Publication number Publication date
IT8183454A0 (it) 1981-09-02

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB

17P Request for examination filed

Effective date: 19830418

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19841212

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VERNOCCHI, VITTORIO

Inventor name: BRUNI, GIUSEPPE