EP0256257A2 - Dispositif de frisage à boîte de bourrage pour le frisage de câbles de filaments synthétiques - Google Patents

Dispositif de frisage à boîte de bourrage pour le frisage de câbles de filaments synthétiques Download PDF

Info

Publication number
EP0256257A2
EP0256257A2 EP87109068A EP87109068A EP0256257A2 EP 0256257 A2 EP0256257 A2 EP 0256257A2 EP 87109068 A EP87109068 A EP 87109068A EP 87109068 A EP87109068 A EP 87109068A EP 0256257 A2 EP0256257 A2 EP 0256257A2
Authority
EP
European Patent Office
Prior art keywords
pressure
end faces
thrust washer
deflection
pressing
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
EP87109068A
Other languages
German (de)
English (en)
Other versions
EP0256257B1 (fr
EP0256257A3 (en
Inventor
Gerold Fleissner
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.)
Vepa AG
Original Assignee
Vepa AG
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
Priority claimed from DE19863621479 external-priority patent/DE3621479A1/de
Application filed by Vepa AG filed Critical Vepa AG
Publication of EP0256257A2 publication Critical patent/EP0256257A2/fr
Publication of EP0256257A3 publication Critical patent/EP0256257A3/de
Application granted granted Critical
Publication of EP0256257B1 publication Critical patent/EP0256257B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/125—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including means for monitoring or controlling yarn processing

Definitions

  • the invention is based on a device as described in DE-OS 24 03 970.
  • a stuffer box crimping device is generally known and consists of the features of the preamble of the claim.
  • the problem with such a device for crimping smoothly spun man-made fibers, which already works in practice, is, according to Wei, the sealing of the press roll nip in the region of the end faces of the press rolls.
  • the nip of the press roll is sealed at both ends by a thrust washer, which abuts against the end faces of the two press rolls.
  • the thrust washers must rest under pressure on the end faces of the press rolls. However, this causes greater abrasion, which results in more frequent replacement of the thrust washers.
  • this problem is eliminated in that the pressure plate is held at a minimum, predetermined distance on the end faces of the press rolls, by means of a sensing element, the actual distance between the end faces of the press rolls and the respective pressure plate is measured and then the target distance is readjusted.
  • the readjustment of the pressure plate is carried out discontinuously, namely in that the pressure plate is pressed against the two end faces of the two associated press rolls and then then moves back by a small, adjustable my distance. It has been found that this type of adjustment of the thrust washer is disadvantageous insofar as fine and very fine fibers are pushed into the my-spacing and thus lead to the failure of the device overall lead. It should be noted that with certain fibers the pressure disks must be pressed against the end faces of the press rolls in any case in order to achieve a sufficient seal of the press roll nip.
  • the invention has for its object to take measures with which the arrangement of the thrust washers to the end faces of the press rolls can always be kept optimal, without on the one hand to get too much abrasion and on the other hand to create no gap, however small, in which the fibers can undesirably slide.
  • the sensing element is designed as an instrument for determining a deflection of a support of the pressure plate which arises due to the pressing pressure, and the pressing pressure can be regulated as a function of the continuously detected deflection of the support, such as the side window.
  • the invention is therefore based on the knowledge that, when generating a compressive pressure sufficient for sealing, the support of the thrust washer is possibly also subjected to a certain deflection. If the extent of this deflection is now determined using sensitive measuring instruments, this value can be used to adjust the pressing pressure. With the aid of the device according to the invention, the actual contact pressure can thus be determined continuously as a function of the deflection of the carrier and the abrasion can thus be kept constant in a still permissible minimum value. With the device according to the invention it is ensured that even with changes in temperature or other varying conditions on the machine, which result in the changes between the pressure plate and the roll end faces, the contact pressure of the pressure plates on the roll end faces always remains constant and thus an adequate seal is guaranteed.
  • a unit is to be provided, to which an arbitrary setpoint of permissible deflection can be entered. If, in the course of the operation of the device, after the adjustment in the warm state, an actual value arises which differs in comparison with the entered target value, the regulation for changing the contact pressure takes effect.
  • the setpoint can be any value, it can extend from zero to a value at which there is considerable wear on the thrust washer, but also an extremely good seal would be achieved.
  • the instrument in the device according to the invention, it is advantageous to design the instrument as a pressure cell.
  • the load cell now does not measure a change in the distance between the side windows from the end faces of the feed rollers in a fine distance measurement, but rather the new pressure which arises due to the changing distance between the pressure disc and the end faces of the feed rollers.
  • Such an electronically controlled load cell can measure the change in distance or the deflection of the support of the pressure plate more sensitively and regulate the control of the distance of the pressure plate based on the measurement pulses.
  • the invention therefore provides for the contact surface of the pressure plate to be spatially curved, preferably crowned. If the counter surface is machined accordingly, a parallel arrangement of the thrust washer to the end faces can now be ensured even if the side disk changes in size in relation to the end faces of the feed rollers.
  • a stuffer box crimping device consists of the two feed rollers 1 and 2 and the chamber plates 4 and 5 adjoining the press roller nip 6, which form the chamber space 3 between them.
  • the upper chamber plate 5 is arranged such that it can be pivoted downwards (shown in broken lines).
  • the lateral area of the chamber space is closed by the two side plates 7 and 8 shown in FIG. 2.
  • a pressure or wear plate 9, 10 are held at the level of the press nip 6, each with pressing pressure 11, 12 are pressed against the end face of the feed rollers 1, 2. Because of this pressure, the supports - here the side plates 7, 8 - bend in the direction of the parts shown in FIG. 3. The amount of bending or torsion of the side plates can be measured and used as a measure of the actual friction between the thrust washer and the end faces of the rolls.
  • the pressure plate 10 is installed in the side window 8.
  • the thrust washer 10 has two surfaces.
  • the wear surface is assigned to the end faces 13 of the pair of intake rollers 1, 2.
  • the back surface - here called the pressing surface 14 - is spatially curved, if not to say crowned.
  • the spherical surface is worked into the pressure plate, while the corresponding adjusting device, designated overall by 15, for adjusting the pressure plate in the area of the pressure surface 14 is convexly shaped.
  • the pressure plate 10 can always align parallel to the end faces 13 of the feed rollers 1, 2 in accordance with the torturing or bending of the side window 8.
  • the construction of the adjusting device 15 is of no particular importance here. It consists of an outer toothed ring 16, which is provided with pins 17 on its end face, in order to transmit the rotation of the toothed ring to the thrust washer for its even wear.
  • the toothed ring 16 is mounted on an adjusting ring 19 via ball bearings 18.
  • the adjusting ring 19 also has end teeth 20 on its outer circumference, into which the drive gear 21 engages.
  • an internal thread is incorporated, which engages in a corresponding external thread of an adjusting bolt 22.
  • the adjusting bolt 22 is longitudinally displaceable but secured against rotation in a part 8 ⁇ of the side window 8.
  • a pressure cell 23 is arranged in a further part 8 'of the side window 8.
  • the contact of the pressure cell to the adjusting bolt 22 is ensured by a bearing 24, which is also spherical with a corresponding counter surface.
  • the operation of this device is as follows:
  • the drive of the thrust washer for uniform rotation takes place via the gear 16 ⁇ , which engages in the end teeth of the toothed ring 16.
  • the distance adjustment of the thrust washer takes place via the toothed wheel 21, which engages with its toothing in the toothing of the adjusting ring 19 and, due to the thread in the adjusting bolt 22, causes a spacing adjustment of the thrust washer 10 in relation to the end face of the feed roller 1.
  • the distance between the thrust washer 10 and the end face 13 of the feed roller 1 is transmitted via the toothed ring 16, then via the ball bearing 18, the adjusting ring 19 to the adjusting bolt 22, which in turn transmits this existing distance to the pressure cell 23.
  • An electronic pulse from electrical units which are not shown in detail in the drawing, drives the gearwheel 21, which presses the pressure plate 10 against the end face 13 of the feed rollers 1, 2 as a function of the continuously detected deflection of the carrier - here the side window 8 - regulates and keeps constant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP87109068A 1986-06-26 1987-06-24 Dispositif de frisage à boîte de bourrage pour le frisage de câbles de filaments synthétiques Expired - Lifetime EP0256257B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19863621479 DE3621479A1 (de) 1986-06-26 1986-06-26 Stauchkammerkraeuselvorrichtung zum kraeuseln von synthetischen fadenscharen
DE3621479 1986-06-26
DE19863626522 DE3626522A1 (de) 1986-06-26 1986-08-05 Stauchkammerkraeuselvorrichtung zum kraeuseln synthetischer fadenscharen
DE3626522 1986-08-05

Publications (3)

Publication Number Publication Date
EP0256257A2 true EP0256257A2 (fr) 1988-02-24
EP0256257A3 EP0256257A3 (en) 1990-02-28
EP0256257B1 EP0256257B1 (fr) 1992-12-02

Family

ID=25845009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109068A Expired - Lifetime EP0256257B1 (fr) 1986-06-26 1987-06-24 Dispositif de frisage à boîte de bourrage pour le frisage de câbles de filaments synthétiques

Country Status (3)

Country Link
US (1) US4807337A (fr)
EP (1) EP0256257B1 (fr)
DE (2) DE3626522A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29618617U1 (de) * 1996-10-25 1998-02-26 Neumag - Neumünstersche Maschinen- und Anlagenbau GmbH, 24536 Neumünster Vorrichtung zum Kräuseln von synthetischen Fadenbündeln oder -bändern
US6088891A (en) * 1996-10-25 2000-07-18 Neumag - Neumuenstersche Maschinen - Und Anlagenbau Gmbh Device for crimping synthetic thread bundles or strips

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537958C1 (de) * 1995-10-12 1996-11-14 Neumag Gmbh Vorrichtung zum Kräuseln von synthetischen Fadenbündeln oder -bändern
DE19538423C2 (de) * 1995-10-16 1997-08-21 Neumag Gmbh Vorrichtung zum Kräuseln von synthetischen Fadenbündeln oder -bändern
US6351877B1 (en) 2000-05-31 2002-03-05 Eastman Chemical Company Synthetic fiber crimper, method of crimping and crimped fiber produced therefrom
EP1512779A1 (fr) * 2003-08-28 2005-03-09 Power-heat-set GmbH Dispositif et procédé pour le traitement de matériaux allongés
EP2098622B1 (fr) * 2008-03-03 2011-03-23 M.A.E. S.p.A. Dispositif pour friser des filaments de fibres synthétiques et méthodes de contrôle
CN102828293B (zh) * 2011-06-16 2015-05-20 南通醋酸纤维有限公司 填塞箱卷曲机耐磨夹板装置
CN102828294B (zh) * 2011-06-16 2015-04-15 南通醋酸纤维有限公司 填塞箱卷曲机耐磨夹板装置
DE112016001061A5 (de) * 2015-03-06 2018-01-04 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Kräuseln eines Tows
EP3891324B1 (fr) * 2018-12-04 2024-12-04 Oerlikon Textile GmbH & Co. KG Procédé de fonctionnement d'un dispositif de frisage et dispositif de frisage

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS152773B1 (fr) * 1968-02-24 1974-02-22
US3618183A (en) * 1970-02-11 1971-11-09 Monsanto Co Insert pressure controller
CH529856A (de) * 1970-08-10 1972-10-31 Vepa Ag Vorrichtung zum Kräuseln synthetischer Fadenscharen
GB1571521A (en) * 1976-11-25 1980-07-16 Vepa Ag Apparatus for crimping synthetic yarns and the like
US4115908A (en) * 1978-02-06 1978-09-26 Eastman Kodak Company Apparatus for stuffer box crimping
DE3326589C2 (de) * 1983-07-23 1994-02-24 Fleissner Maschf Ag Vorrichtung zum Kräuseln synthetischer Fadenscharen
US4521944A (en) * 1984-01-23 1985-06-11 Eastman Kodak Company Dowel-aligned multiple plate stuffer box crimper construction for filter tow
DE3421480A1 (de) * 1984-06-08 1985-12-12 Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach Beschichtete ventilmetall-elektrode zur elektrolytischen galvanisierung
JPH05140458A (ja) * 1991-11-20 1993-06-08 Toray Dow Corning Silicone Co Ltd 湿気硬化型シリコーン粘着剤組成物

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29618617U1 (de) * 1996-10-25 1998-02-26 Neumag - Neumünstersche Maschinen- und Anlagenbau GmbH, 24536 Neumünster Vorrichtung zum Kräuseln von synthetischen Fadenbündeln oder -bändern
US6088891A (en) * 1996-10-25 2000-07-18 Neumag - Neumuenstersche Maschinen - Und Anlagenbau Gmbh Device for crimping synthetic thread bundles or strips

Also Published As

Publication number Publication date
US4807337A (en) 1989-02-28
DE3782881D1 (de) 1993-01-14
EP0256257B1 (fr) 1992-12-02
DE3626522A1 (de) 1988-02-11
EP0256257A3 (en) 1990-02-28

Similar Documents

Publication Publication Date Title
EP0201783B1 (fr) Système de rouleau à compensation de la flèche et réglage de la température
EP0256257B1 (fr) Dispositif de frisage à boîte de bourrage pour le frisage de câbles de filaments synthétiques
DE2813719C2 (de) Vorrichtung zum Messen der Planheit von Metallbändern
DE3325385A1 (de) Druckbehandlungswalze
EP0478734B1 (fr) Dispositif de mesure
DE2543738C3 (de) Kalander für Folien aus thermoplastischem Kunststoff oder elastomerem Material
CH619177A5 (fr)
DE3728313C2 (fr)
DE3020669C2 (de) Verfahren zur Steuerung der Liniendruckverteilung in einem Kalander sowie ensprechender Kalander
DE2729559C2 (de) Presse zum Herstellen von Werkstoffplatten o.dgl
DE3115461A1 (de) "regelanordnung an band- oder blechwalzwerken"
DE3516779C2 (fr)
DE69223531T2 (de) Verfahren zur zerstörungsfreien on-line-Messung einer Charakteristik eines kontinuierlich hergestellten Produktes und entsprechende Vorrichtung
EP0476407B1 (fr) Appareil pour le guidage d'un chapeau d'une machine de cardage pour le coton ou pour la laine
EP0460442B1 (fr) Dispositif de mesure de l'épaisseur et/ou de l'inégalite de rubans de fibres
EP0072504A2 (fr) Broyeur à cylindres pour le broyage de matières fluides
DE3300251C2 (fr)
DE3621479A1 (de) Stauchkammerkraeuselvorrichtung zum kraeuseln von synthetischen fadenscharen
AT414245B (de) Verfahren zum beschichten in einem filmtransferbeschichter und anordnung für einen filmtransferbeschichter
DE4429455A1 (de) Verfahren zum Verdichten einer Papierbahn und Preßwerk zur Durchführung des Verfahrens
EP0435411B1 (fr) Calandre à cylindres de fusion avec au moins deux rouleaux
DE2403970C2 (de) Vorrichtung zum Kräuseln synthetischer Fadenscharen
DE4231743A1 (de) Vorrichtung zum Auftragen von Substanzen auf ein Substrat
DE3533210C2 (fr)
DE2117393C3 (de) Vorrichtung zum Kräuseln synthetischer Fadenscharen

Legal Events

Date Code Title Description
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

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19900216

17Q First examination report despatched

Effective date: 19920204

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19921202

Ref country code: FR

Effective date: 19921202

Ref country code: GB

Effective date: 19921202

Ref country code: NL

Effective date: 19921202

REF Corresponds to:

Ref document number: 3782881

Country of ref document: DE

Date of ref document: 19930114

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19921202

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950403

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970301