WO2002081796A1 - Verfahren und vorrichtung zum betreiben einer zentrifugenspinn- und -zwirnmaschine - Google Patents
Verfahren und vorrichtung zum betreiben einer zentrifugenspinn- und -zwirnmaschine Download PDFInfo
- Publication number
- WO2002081796A1 WO2002081796A1 PCT/EP2002/002889 EP0202889W WO02081796A1 WO 2002081796 A1 WO2002081796 A1 WO 2002081796A1 EP 0202889 W EP0202889 W EP 0202889W WO 02081796 A1 WO02081796 A1 WO 02081796A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spinning
- centrifuge
- package
- spinning station
- station
- Prior art date
Links
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
- D01H1/08—Spinning or twisting machines in which the product is wound-up continuously cup, pot or disc type, in which annular masses of yarn are formed by centrifugal action
-
- 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
- D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
- D01H1/244—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles each spindle driven by an electric motor
-
- 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
- D01H13/32—Counting, measuring, recording or registering devices
Definitions
- the invention relates to a method for operating a centrifuge spinning and - twisting machine according to the preamble of claim 1 and an apparatus for performing the method according to claim 15.
- the original material is either a fiber sliver stored in a spinning can or a fiber sliver, which is drawn off, for example, from a flyer spool.
- the warped template material emerging from the mouth of the thread guide tube lies against the inner wall of the spinning centrifuge, forming a leg of yarn, and is carried along by it.
- the thread created by the twist is placed on the centrifuge inner wall by the axially displaceably mounted thread guide tube and forms a package there, which is also referred to as a thread cake.
- the centrifuge speed and the delivery speed of the original material are like this coordinated with one another that the thread deposited as a yarn cake already has its full rotation and can be wound in a subsequent work step onto a rewinding tube inserted into the centrifuge.
- the spinning bobbin produced in this rewinding process is then doped and later rewound to a large-volume cheese on a winder connected in the production process.
- the centrifuge speed and the delivery speed of the stock material are selected so that the thread deposited in the first spinning stage on the inner wall of the spinning centrifuge initially only receives a part, for example 60%, of its final rotation.
- the missing twist is imparted to the partially twisted thread, which is stored as a package, when it is drawn off from the spinning centrifuge in a second spinning stage and is thereby wound up directly on an associated winding device to form a large-volume package.
- centrifugal spinning Due to the unknown scatter of parameters, centrifugal spinning generally works with a high safety distance and thus the maximum possible centrifuge filling is used in very few cases.
- the invention has for its object to provide a method or an apparatus by which the efficiency of a centrifuge spinning and twisting machine can be significantly improved, regardless of the respective spinning or twisting method.
- the method according to the invention has the particular advantage that the precise package parameters, such as the density of the structure of the package, the minimum spinnable inner radius and / or the maximum cone angle of the package can be determined in a simple manner, so that, based on their knowledge, the spinning volume of the individual Spinning centrifuges one Centrifugal spinning and twisting machine used to the maximum and the overall efficiency of these textile machines can be significantly increased.
- the growth of the package formed in the spinning centrifuge of the reference spinning station is recorded on the basis of an R (t) curve representing the size of the inner radius over time.
- a resolution is used which corresponds approximately to a thread thickness and is therefore sufficiently precise.
- the relevant package parameters determined by means of the reference spinning station for each type of yarn are stored in the central computer of the centrifuge spinning machine. This means that all later spinning processes can immediately fall back on these stored values and thus the spinning process at the "regular" spinning positions can be started immediately with the optimal settings.
- the package is represented by the p ⁇ z (R) curve that characterizes the inner radius.
- an h kk (R) curve representing the respective cone contour of the package can also be created from the R (t) curve.
- the cone contour of the package can, for example, have a concave, a convex or a linear course.
- the R (t) curve is also ideal for determining the minimum inner radius and the maximum cone angle of the package.
- the jump in the R (t) curve is due to the occurrence of a thread chord or the sliding of thread layers from the cone of the package, which is reliably detected by the sensor device.
- the measurement data received by the sensor device are immediately processed in the data determination and evaluation device to form a statistical model.
- the expected package parameters "minimum inner radius” and "maximum cone angle” of the package are calculated immediately.
- the use of several reference spinning stations and the evaluation of their measurement results or the evaluation of several successive incoming measurement results of a reference spinning station makes it possible in a simple manner to take into account the scattering that occurs during the production of the packages with sufficient accuracy.
- the spinning station computers of the regular spinning stations are connected online to the data determination and evaluation device of the reference spinning station (s).
- the “regular” spinning positions can be started shortly after the start of the Reference spinning station can be started.
- the required package parameters can subsequently, that is to say as soon as they are available, be transmitted to the winding station computer of the “regular” spinning stations and these can be set accordingly.
- the online connection between the reference spinning station and the "regular" spinning stations also makes it possible to continuously and automatically re-adjust the regular spinning stations according to the data determined at the reference spinning station.
- the sensor device is designed as an optical sensor device.
- the laser light barrier in this case has a transmitter which for example, below and a receiver, which then above the Pipe centrifuge is arranged.
- Such a separate reference spinning device then preferably has an interface which enables a connection to the data transmission system of the centrifuge spinning machine.
- Embodiment of a centrifuge spinning machine with a movable operator runner Embodiment of a centrifuge spinning machine with a movable operator runner
- Fig. 6a-6e each have a coordinate system with one or more curve (s) which enable statements about relevant package parameters.
- Figure 1 shows schematically a total with the
- Spinning positions 2 At least one of these spinning positions, in the present exemplary embodiment the two left, as will be explained in more detail below, as
- the template material 19 according to first in a drafting device 6, the desired yarn count, warped and passes through a yarn guide tube 7 into the spinning centrifuge '8 a' total 'with 4 designated - ⁇ ""' centrifugal spinning apparatus.
- the centrifuge spinning device 4 which is based on the following
- Figure 3 is explained in more detail, is preferably by means of a
- the thread guide tube 7 also has a drive 18, which enables a defined traversing of the thread guide tube 7.
- an optical sensor device 17 for monitoring the structure of a structure which is formed on the inner wall 20 of the spinning centrifuge 8
- each spinning station 2 or 3 also has a winding device 9.
- the centrifuge spinning device 4 which is shown in FIGS. 3 and 4 on a somewhat larger scale, consists, as is known, of a spinning centrifuge 8 which is rotatably supported by bearings 24 in a centrifuge housing 29 and is driven by a single motor via an electric motor 25.
- the bearings 24 are preferably designed as magnetic bearings, as described, for example, in DE 196 37 270 A1, and the entire centrifuge housing 29 can also be displaceable in the vertical direction by means of a drive 12 (only indicated schematically).
- the optical sensor device 17 is, for example, as shown in the exemplary embodiment according to FIG. 3, designed as a light band-like laser light barrier 22, the transmitter bearing the reference number 26 and the reference number 27.
- a laser light barrier 22 works with a resolution the size of a thread thickness.
- the regular” spinning stations 2 via a data transmission system 16, a so-called data bus, also to the central control unit 15 of the pot spinning machine 1 and with the Spinning station computers 14 of the “regular” spinning stations 2 are connected.
- a data transmission system 16 a so-called data bus
- Such data transmission systems 16 are known and associated with a centrifugal spinning machine 1 is such a "data bus system, for example, described in DE 195 '48 667 AI.
- FIG. 4 shows an alternative embodiment of a
- an optical sensor device 17 comes here
- the CCD camera 23 for use, which is connected via a signal line 31 to the data determination and evaluation device 13.
- the CCD camera works with short time recordings, that is, short shutter speeds of the camera aperture.
- a stroboscopic flash 30 can preferably also be provided, through which the quality of the recordings of the CCD camera can be determined
- FIG. 5 shows schematically, also in side view, a reference spinning station 3 of a centrifuge spinning machine 1, which works on the principle of single-stage spinning.
- sliver 19 is used, which is stored in a spinning can 5 , ⁇ .
- the sliver 19 is first drawn to the desired yarn count in a drafting device 6 and passes via a thread guide tube 7 into the interior of a centrifuge spinning device 4, where it is deposited as a yarn cake on the inner wall of the spinning centrifuge 8.
- This package (not shown in FIG. 5) is then, as is customary in single-stage spinning, rewound onto a so-called rewinding tube and conveyed off as a spinning cop.
- the principle of single-stage spinning is generally known and is therefore not explained in more detail.
- the structure of the package on the inner wall of the spinning centrifuge 8 of the reference spinning station 3 is monitored via an optical sensor device 17 which is arranged in the area of the reference spinning station in a stationary manner on the spinning station housing and is designed, for example, as a CCD camera.
- the operating runner 32 for example a spinning head exchange unit, ensures that finished spinning heads in the spinning centrifuges are properly disposed of, that is to say are fed to further processing.
- FIGS. 6a to 6e each show a coordinate system in which one or more of the curve (s), which represent relevant package parameters, which have been developed in the data determination and evaluation device 13, are / are entered.
- R (t) curve 35 shows, for example, an R (t) curve 35, the spinning time t of the reference spinning station 3 being shown on the abscissa and the clear inner radius R of the package 21 on the ordinate.
- R Ga is the design of the spinning centrifuge 8, that is to say the inner radius thereof, denotes the predetermined outer radius of the package 21, while the minimum internal radius of the package 21 to be determined is identified by R Gi .
- 6b is the approximate one based on the straight lines I, II and III
- the straight line I shows the approximate density curve when the
- Contour of the package cone as indicated in Fig. 6c with the help of curve IV, has a convex shape.
- the straight line II shows the corresponding density profile for a concave-shaped twine cone, as shown in FIG. 6c with the help of curve V, while the straight line III indicates a linear twine cone body according to the straight line VI in FIG. 6c.
- FIG. 6d essentially corresponds to FIG. 6a, but the R (t) curve shows a clear jump here, which, when the package 21 is created in flyer winding, points to a thread chord and thus to the package formation limit “minimal internal radius of the package "R c i indicates. In the case of a package with a bobbin winding, this jump points to the package formation limit" maximum cone angle of
- R (t) curve can be calculated.
- Curves IV, V and VI correspond to the cone contour profiles known from FIG. 6c. Sequence of the method according to the invention:
- the package parameters of which are not known or not exactly known, or if the machine parameters are to be changed for a yarn are first determined on a so-called reference spinning station 3.
- first relevant spinning parameters such as the “minimum
- a yarn body 21 is created from the new yarn on the inner wall 20 of the spinning centrifuge 8 of the reference spinning station "3, the structure of which is permanently monitored by a preferably optical sensor device 17, which is connected to a data determination and evaluation device 13.
- the package 21 can optionally be created in the winding type "flyer winding" or "bobbin winding”.
- the R (t) curve indicated in FIG. 6a is created in the data determination and evaluation device 13 during the construction of the package 21 from the data transmitted by the optical sensor device 17.
- the data determination and evaluation device 13 taking into account the traversing kinematics of the reference spinning station 3, derives the courses of p K z (R) curves designated I, II and III in FIG. 6b, each reflect the local density p of the package 21 at different package radii. In the same way, the data determination and evaluation device 13 also determines the shapes shown in FIG. 6c for the cone contour h K ⁇ (R) of the package 21.
- the curve IV shows a convex, the curve V a concave and the curve VI a linear cone shape.
- centrifuge spinning machine has a plurality of such reference spinning positions 3 with spinning centrifuges 8 driven by a single motor, in some of these spinning centrifuges packages with flyer winding and in the other package with cop winding can be spun and onto these
- the package parameters R ( m in) and ⁇ z (ma ⁇ ) are determined simultaneously.
- the package parameters obtained on the basis of the reference spinning station 3 are advantageously stored in the central control unit 15 of the centrifuge spinning machine 1 and are used to control the “regular” Spinning stations 2 of the relevant or further centrifuge spinning machine (s) 1 are used.
- a statistical model is also created from the data of the reference spinning station 3, for example, started slightly before the “regular” spinning stations 2.
- the data determination and evaluation device 13 preferably via a data transmission system 16, a so-called data bus, is connected online both to the central control unit 15 and to the spinning station computers 14 of the “regular” spinning stations 2, it is not only possible to get the first package parameters early to determine, but also to transfer this immediately to the "regular” spinning positions 2 of the centrifuge spinning machine 1.
- the online connection enables subsequent optimization of these process parameters at any time.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50212067T DE50212067D1 (de) | 2001-04-04 | 2002-03-15 | Verfahren und vorrichtung zum betreiben einer zentrifugenspinn- und -zwirnmaschine |
EP02724237A EP1377700B1 (de) | 2001-04-04 | 2002-03-15 | Verfahren und vorrichtung zum betreiben einer zentrifugenspinn- und -zwirnmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10116706.7 | 2001-04-04 | ||
DE2001116706 DE10116706A1 (de) | 2001-04-04 | 2001-04-04 | Verfahren und Vorrichtung zum Betreiben einer Zentrifugenspinn-und-zwirnmaschine |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10472134 A-371-Of-International | 2002-03-15 | ||
US11/580,378 Continuation US7554657B2 (en) | 2001-03-16 | 2006-10-13 | Accomodating device for specimen slides |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002081796A1 true WO2002081796A1 (de) | 2002-10-17 |
Family
ID=7680307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/002889 WO2002081796A1 (de) | 2001-04-04 | 2002-03-15 | Verfahren und vorrichtung zum betreiben einer zentrifugenspinn- und -zwirnmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1377700B1 (de) |
CN (1) | CN1308512C (de) |
DE (2) | DE10116706A1 (de) |
WO (1) | WO2002081796A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020041232A (ja) * | 2018-09-11 | 2020-03-19 | 株式会社豊田自動織機 | ポット精紡機の制御方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008029575A1 (de) * | 2008-06-21 | 2009-12-24 | Oerlikon Textile Gmbh & Co. Kg | Textilmaschine mit einem verfahrbaren Serviceaggregat |
CN104195808A (zh) * | 2014-07-15 | 2014-12-10 | 东华大学 | 一种纱条假捻分析与测试装置 |
JP2019137951A (ja) * | 2018-02-15 | 2019-08-22 | 株式会社豊田自動織機 | ポット精紡機およびポット精紡方法 |
JP7287126B2 (ja) * | 2019-06-05 | 2023-06-06 | 株式会社豊田自動織機 | ポット精紡機 |
DE102020106124A1 (de) * | 2020-03-06 | 2021-09-09 | Maschinenfabrik Rieter Ag | Verfahren zum Betreiben einer Spinnmaschine sowie Spinnmaschine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0071371A1 (de) * | 1981-07-31 | 1983-02-09 | Gütermann & Co., Aktiengesellschaft | Vorrichtung zur Nachbildung einer vorgegebenen Wicklung zur Herstellung einer Wicklung mit gleichen Dimensionen |
EP0498171A2 (de) * | 1991-02-08 | 1992-08-12 | W. SCHLAFHORST AG & CO. | Verfahren und Einrichtung zum Herstellen eines Fadens nach dem Zentrifugenspinnverfahren |
US5621637A (en) * | 1993-09-21 | 1997-04-15 | Barmag Ag | Method of controlling the quality in the production of a plurality of yarns |
DE19548667A1 (de) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Zentrifugenspinnmaschinensteuerung |
US5765353A (en) * | 1995-06-30 | 1998-06-16 | W. Schlafhorst Ag & Co. | Method and apparatus for pot spinning |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD285518A7 (de) * | 1989-03-01 | 1990-12-19 | �������@������������@��k�� | Verfahren zum aufbauen und abarbeiten eines aus teilverdralltem faden bestehenden wickels innerhalb einer zentrifugenspindel |
DE19548669A1 (de) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Aufbau des Garnwickels in Zentrifugen beim Zentrifugenspinnen |
DE19802656A1 (de) * | 1998-01-24 | 1999-07-29 | Schlafhorst & Co W | Verfahren und Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen nach einem Fadenbruch |
-
2001
- 2001-04-04 DE DE2001116706 patent/DE10116706A1/de not_active Withdrawn
-
2002
- 2002-03-15 DE DE50212067T patent/DE50212067D1/de not_active Expired - Fee Related
- 2002-03-15 CN CNB028113012A patent/CN1308512C/zh not_active Expired - Fee Related
- 2002-03-15 EP EP02724237A patent/EP1377700B1/de not_active Expired - Lifetime
- 2002-03-15 WO PCT/EP2002/002889 patent/WO2002081796A1/de active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0071371A1 (de) * | 1981-07-31 | 1983-02-09 | Gütermann & Co., Aktiengesellschaft | Vorrichtung zur Nachbildung einer vorgegebenen Wicklung zur Herstellung einer Wicklung mit gleichen Dimensionen |
EP0498171A2 (de) * | 1991-02-08 | 1992-08-12 | W. SCHLAFHORST AG & CO. | Verfahren und Einrichtung zum Herstellen eines Fadens nach dem Zentrifugenspinnverfahren |
US5621637A (en) * | 1993-09-21 | 1997-04-15 | Barmag Ag | Method of controlling the quality in the production of a plurality of yarns |
US5765353A (en) * | 1995-06-30 | 1998-06-16 | W. Schlafhorst Ag & Co. | Method and apparatus for pot spinning |
DE19548667A1 (de) * | 1995-12-23 | 1997-06-26 | Csm Gmbh | Zentrifugenspinnmaschinensteuerung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020041232A (ja) * | 2018-09-11 | 2020-03-19 | 株式会社豊田自動織機 | ポット精紡機の制御方法 |
JP7206717B2 (ja) | 2018-09-11 | 2023-01-18 | 株式会社豊田自動織機 | ポット精紡機の制御方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1513066A (zh) | 2004-07-14 |
EP1377700A1 (de) | 2004-01-07 |
EP1377700B1 (de) | 2008-04-09 |
DE50212067D1 (de) | 2008-05-21 |
CN1308512C (zh) | 2007-04-04 |
DE10116706A1 (de) | 2002-10-10 |
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