EP2570525A2 - Machine de peignage avec peigne circulaire à vitesse variable - Google Patents

Machine de peignage avec peigne circulaire à vitesse variable Download PDF

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Publication number
EP2570525A2
EP2570525A2 EP20120183006 EP12183006A EP2570525A2 EP 2570525 A2 EP2570525 A2 EP 2570525A2 EP 20120183006 EP20120183006 EP 20120183006 EP 12183006 A EP12183006 A EP 12183006A EP 2570525 A2 EP2570525 A2 EP 2570525A2
Authority
EP
European Patent Office
Prior art keywords
angular
combing machine
machine according
ratio
circular comb
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
Application number
EP20120183006
Other languages
German (de)
English (en)
Other versions
EP2570525A3 (fr
EP2570525B1 (fr
Inventor
Girolamo Prandini
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.)
Marzoli Machines Textile SRL
Original Assignee
Marzoli 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 Marzoli SpA filed Critical Marzoli SpA
Publication of EP2570525A2 publication Critical patent/EP2570525A2/fr
Publication of EP2570525A3 publication Critical patent/EP2570525A3/fr
Application granted granted Critical
Publication of EP2570525B1 publication Critical patent/EP2570525B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/10—Construction, mounting, or operating features of combing elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/16—Nipper mechanisms

Definitions

  • the present invention relates to a combing machine of a spinning line for processing fibre to obtain a yarn.
  • carding On a fibre processing line for the production of yarn, after the initial phases of opening and cleaning the fibre, carding is performed by carding machines, after which the fibre appears in the form of a web.
  • the web or lap After processing, if any, on a lap-winder, in which various separate webs are combined to form a lap, the web or lap is combed by a combing machine, so as to obtain a web in which the fibres have been rendered highly clean and parallel.
  • Combing is performed by circular combs, which are used to comb the heads of the tufts of the lap, and by straight nipper combs, used to comb the tails of the same tufts of the lap.
  • the combed tufts are fed to the tearing rollers, situated downstream of the combs, so that the edges overlap; the continuous web formed proceeds for subsequent processing.
  • the circular comb is provided with a continuous rotatory movement, synchronised with the alternate movement of the nipper, so as not to interfere structurally with it.
  • the circular comb It is therefore extremely advantageous for the circular comb to have a variable rotation speed, so that rotation is slower when the nipper is near the tearing rollers (and the circular comb is therefore idle) and faster when the circular comb combs the fibre (and the nipper is therefore distant from the tearing rollers) and when the tearing rollers move the already previously combed tuft backwards for overlapping with the new one.
  • timing is optimised, reducing the dynamic severity of the movements, in particular of the tearing rollers, and paying particular attention in any case to avoiding structural interference between the circular comb and the nipper.
  • the purpose of the present invention is to make a combing machine with variable speed circular combs having a law of motion permitting an optimal combing to be performed, maintaining a high level of reliability of functioning and of the mechanical components used to achieve such law.
  • FIG. 1 shows a diagram of a combing machine, in a rearward position of the nipper, corresponding to an initial angular position of the circular comb (0° or 360);
  • figure 2 shows the diagram of figure 1 , in a forward position of the nipper, corresponding to an initial angular position of the circular comb opposite the position as in figure 1 (180°);
  • FIG. 3 shows a kinematic diagram of a combing machine according to the present invention, according to one embodiment
  • FIG. 4 shows a transmission device of the combing machine, according to one embodiment
  • FIG. 5 shows the trend of the angular output speed of the transmission device depending on the angular position of the circular comb
  • FIG. 7 shows the trend of the ratio of the angular output speed to the angular input speed of the transmission device depending on the angular position of the circular comb.
  • a combing machine comprises a fixed frame 2, a nipper 4 and a circular comb 20.
  • the nipper 4 comprises a lower jaw 6 and an upper jaw 8; the nipper 4 further comprises a straight comb 10, suitable for combing the tail of the tuft.
  • the nipper 4 comprises a rotating feed roller 12, supported by the lower jaw 6.
  • pairs of tearing rollers 14, 16 Downstream of the nipper 4, are pairs of tearing rollers 14, 16, having an alternate rotatory movement.
  • the nipper 4 has an alternate back and forth movement; in a forward position, the nipper occupies a processing zone and the jaws 6, 8 are next to the tearing rollers 14, 16 and open; in a rearward position of the nipper, the jaws 6, 8 are distal from the tearing rollers 14, 16 and closed, so as to nip the web being processed.
  • the circular comb 20 is joined in rotation to a main shaft 18 and has a continuous rotatory movement.
  • the circular comb 20 operates on the head of the tuft of the web when it transits immediately upstream of the tearing rollers, in other words through the processing zone.
  • the rotatory movement of the circular comb 20 is synchronised with the alternate movement of the nipper 4, so that when the nipper is in the forward position, in other words in the processing zone immediately upstream of the tearing rollers, the comb 20 is inactive, that is to say outside the processing zone; when the nipper is in the rearward position, in which the jaws do not occupy the processing zone, the comb is in said processing zone and performs combing of the head of the tuft.
  • the combing machine further comprises an electric motor 21 able to impose an angular speed and a kinematism 22 for the transmission of the rotatory movement from the motor 21 to the main shaft 18.
  • the kinematism 22 comprises a transmission device 30 suitable for varying a uniform circular movement in input into a non-uniform circular movement in output, transmitting it to the main shaft 18.
  • the transmission device 30 comprises an intermittent drive, in particular of the flat type, comprising a first body or motor body 52, joined in rotation to the motor shaft 36 having an angular input speed Win, and a second body or driven body 54, joined in rotation to the driven shaft 19, having an angular output speed Wout; the driven body 54 meshing permanently with the motor body 52.
  • intermittent drive indicates herein a transmission wherein the motor body is composed of one or more cams and the driven body is composed of a plate bearing a series of rollers which form a shaped coupling with the cam at all times.
  • One of the two bodies 52, 54 for example the motor body 52, is shaped so as to form a plurality of lobes connected with each other.
  • the other of the two bodies 52, 54 preferably the driven body 54, comprises a plurality of angularly spaced rollers 64, at least one of which is engaged with the other body 52, to ensure the transmission of movement to the driven shaft 19.
  • the motor body 52 is shaped so as to ensure a variable speed circular movement to the driven body 54, for example a continuous circular movement.
  • Figure 5 shows the angular output speed Wout of the driven shaft 19 (and therefore of the circular comb 20, in the embodiment shown) depending on the angular position ⁇ of the motor shaft 36 (and therefore of the circular comb 20) and depending on the angular input speed Win (constant and equal to 500 rounds /min).
  • the maximum angular output speed (Wout) is less than 800 rounds/minute, in particular less than 700 rounds/minute, approximately equal to 670 rounds/minute.
  • the minimum angular output speed Wout is more than 200 rounds/minute, in particular more than 300 rounds/minute, approximately equal to 330 rounds/minute.
  • Figure 5 also shows the angular output speed Wprior of a known combing machine, extracted experimentally on a combing machine of a rival company.
  • Figure 6 shows, depending on the angular position ⁇ , the angular output acceleration Aout of the driven shaft 19 (and therefore of the circular comb 20).
  • the maximum angular output acceleration Aout is less than 1500 rad/s2 and the minimum angular output acceleration Aout is more than -1500 rad/s2.
  • the maximum angular output acceleration Aout is less than 1200 rad/s2, for example approximately equal to 1000 rad/s2, and the minimum angular output acceleration Aout is more than -1200 rad/s2, for example approximately equal to -1000 rad/s2.
  • Figure 6 also shows the angular output acceleration Aprior of a known combing machine, extracted experimentally on a combing machine of a rival company.
  • Figure 7 shows, depending on the angular position ⁇ , the ratio R of the angular output speed Wout to the angular input speed Win of the transmission device.
  • the maximum ratio R is less than 1.55, and in particular less than 1.40, and about equal to 1.35.
  • the minimum ratio R is more than 0.45, and in particular more than 0.60, and about equal to 0.65.
  • Figure 8 also shows the ratio Rprior of the angular output speed to the angular input speed of a known combing machine, extracted experimentally on a combing machine of a rival company.
  • the transmission device of the combing machine according to the present invention makes it possible to perform a particularly efficient combing, in that during the active phase of the circular comb, the angular speed is not excessively high, so that the fibres are not subject to an overly energetic action. This results in a higher quality of the finished product.
  • the angular output speed of the circular comb undergoes a limited variation during a combing cycle, so that the components of the kinematic system are subject to lesser forces of inertia. This results in a high level of machine reliability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP12183006.1A 2011-09-16 2012-09-04 Machine de peignage avec peigne circulaire à vitesse variable Active EP2570525B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000124A ITBS20110124A1 (it) 2011-09-16 2011-09-16 Pettinatrice con pettine circolare a velocità variabile

Publications (3)

Publication Number Publication Date
EP2570525A2 true EP2570525A2 (fr) 2013-03-20
EP2570525A3 EP2570525A3 (fr) 2014-04-16
EP2570525B1 EP2570525B1 (fr) 2016-06-08

Family

ID=44907935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12183006.1A Active EP2570525B1 (fr) 2011-09-16 2012-09-04 Machine de peignage avec peigne circulaire à vitesse variable

Country Status (4)

Country Link
EP (1) EP2570525B1 (fr)
CN (1) CN102995171B (fr)
BR (1) BR102012022912B8 (fr)
IT (1) ITBS20110124A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022002488A1 (fr) * 2020-06-30 2022-01-06 TRüTZSCHLER GMBH & CO. KG Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073942A1 (fr) 2009-12-18 2011-06-23 Marzoli Combing & Flyer S.P.A. Peigneuse à peigne circulaire à vitesse variable

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB773157A (en) * 1954-03-03 1957-04-24 Schubert & Salzer Maschinen Improvements in or relating to drives for the nippers of combing machines
DE59810844D1 (de) * 1998-02-12 2004-04-01 Rieter Ag Maschf Rundkammantrieb
CN1138027C (zh) * 1998-06-25 2004-02-11 里特机械公司 精梳机的钳板
IT1317208B1 (it) * 2000-04-11 2003-05-27 Vouk S P A Officine Meccanotes Gruppo di comando per l'azionamento a passo del pellegrino deicilindri strappatori in una macchina pettinatrice
CN2923746Y (zh) * 2006-02-14 2007-07-18 昆山市凯宫机械有限公司 精梳机分离罗拉的驱动装置
DE102006020589B4 (de) * 2006-05-02 2010-06-02 Oerlikon Textile Gmbh & Co. Kg Antriebswelle für die Speisewalzen einer Kämmmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073942A1 (fr) 2009-12-18 2011-06-23 Marzoli Combing & Flyer S.P.A. Peigneuse à peigne circulaire à vitesse variable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022002488A1 (fr) * 2020-06-30 2022-01-06 TRüTZSCHLER GMBH & CO. KG Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages

Also Published As

Publication number Publication date
BR102012022912B8 (pt) 2021-12-07
ITBS20110124A1 (it) 2013-03-17
CN102995171A (zh) 2013-03-27
CN102995171B (zh) 2016-12-21
EP2570525A3 (fr) 2014-04-16
EP2570525B1 (fr) 2016-06-08
BR102012022912B1 (pt) 2021-06-01
BR102012022912A2 (pt) 2013-08-06

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