EP3227481A1 - Procédé et dispositif pour la surveillance automatique de la qualité de tubes sur des broches de filature et de retordage - Google Patents

Procédé et dispositif pour la surveillance automatique de la qualité de tubes sur des broches de filature et de retordage

Info

Publication number
EP3227481A1
EP3227481A1 EP15801458.9A EP15801458A EP3227481A1 EP 3227481 A1 EP3227481 A1 EP 3227481A1 EP 15801458 A EP15801458 A EP 15801458A EP 3227481 A1 EP3227481 A1 EP 3227481A1
Authority
EP
European Patent Office
Prior art keywords
spindle
ring spinning
spinning
temperature
sleeves
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Withdrawn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
EP15801458.9A
Other languages
German (de)
English (en)
Inventor
Heinz Egolf
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3227481A1 publication Critical patent/EP3227481A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/169—Pool nozzles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04—Spindles
    • 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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone

Definitions

  • This invention relates on the one hand to a method for automatic monitoring of the quality of sleeves on spinning and twisting spindles and on the other hand, a device to implement this method technically.
  • Modern short staple fiber machines and ring spinning machines are operated today with around 2 ⁇ 00 spindles per machine and such machines fill entire halls.
  • a higher number of spindles per machine means lower costs for the realization of a specific production quantity. Fewer machines incur lower investment costs and lower infrastructure costs such as maintenance, space requirements, energy and engine room climate. This reduces the fixed share of production costs per kg of yarn. For example, if a ring spinning mill operates 30 ⁇ 00 spindles, then 25 machines with 1'200 spindles each require 1 1 '300m 2 of space. With a spindle number of 1 '632 only 16 machines are needed, and it takes only 9'800 m 2 of space, which means 13% less.
  • a 4-spindle belt drive with four spindles driven by the same drive belt, guarantees constant speeds over the entire length of the machine, regardless of the number of spindles, and this drive offers an excellent energy balance.
  • the motor-driven spindles are arranged vertically along rows that extend on both sides along the elongate machine, ie on each side up to 1 ⁇ 00 spindles. Above the spindles a thread bobbin is ever arranged, from which the thread is obtained and is wound on the underneath on the driven spindle rotating ring spinning sleeve.
  • the empty ring spinning sleeves are loosely attached with their inlying cones on the also conical ring spindles, so that a keying is generated to transmit the torques for their drive from the spindle to the sleeve.
  • the ring spinning sleeves are rotated at a speed of the ring spindles of up to about 25 ⁇ 00 rpm and the ring spun yarns are wound onto the ring spinning sleeves.
  • the ring spindle has the task to allow the winding process despite an existing imbalance load, mainly due to game between the spinning sleeve and spindle top part. Therefore, the geometry of the spin tubes has enormous importance and only narrow deviating values are tolerated to limit the imbalance forces. Likewise, the choice of material for the spin tubes is given appropriate attention.
  • the geometry of the spinning tubes, both in new condition as well as during operation, must be kept under constant control by using appropriate control calibers. It is very important, indeed decisive, that these comprehensive controls of the sleeve quality are carried out seriously and consistently. So far, a defective sleeve is recognized only on troubled run. Imbalance is noticeable and generates vibrations and additional noise. A non-standard vibration due to a defective sleeve is essentially detected by eye, if one observes regularly and carefully the individual sleeves and their run by walking along the machine. But this is a concentration work and it is time consuming and tedious.
  • the object of the present invention is, in view of these facts, a method for automatic monitoring of the quality of ring spinning sleeves for Specify spinning and twisting spindles. This method should work reliably and safely, be cost effective and durable, and automatically display immediately if a specific ring spinning sleeve is no longer flawless, and identify this defective ring spinning sleeve so that it can be replaced immediately.
  • Another object of the invention is to provide a device which can implement such a method automated, and which is inexpensive to implement and can also be used cost-effectively and reliably in the long term.
  • This object is achieved by a method for automatic monitoring of the quality of ring spinning sleeves on spinning and twisting spindles, in which at each spindle of a ring spinning machine whose temperature is measured directly or indirectly continuously or periodically, and a elevated temperature of a spindle on a central display or by means of a light on each spindle is displayed, the display identifies the ring spinning sleeve concerned so that it can be manually replaced.
  • a device for carrying out the method for the automatic monitoring of the quality of ring spinning sleeves on spinning and twisting spindles which is characterized in that it is a ring spinning machine for each ring spinning spindle own temperature sensor includes, so that the temperature of each spindle is directly or indirectly continuously or periodically measurable, and further that either a central display is present, which is connected to a programmable logic controller of a computer, to which each temperature sensor at least two electrical signal cable so that the temperature of each specific spindle can be displayed on this central display, or a lamp with an electronic circuit is installed on each individual spindle, so that an adjustable temperature at the spindle itself can be displayed by this lamp.
  • FIG. 1 shows a ring spinning machine in a schematic cross section
  • Figure 2 shows a machine room with a variety of ring spinning machines
  • Figure 3 A ring spinning sleeve without crimping for placement on a
  • Figure 4 A ring spinning sleeve with flange for placement on a spindle
  • FIG. 5 A gauge mandrel or standard caliber for testing a ring spinning sleeve
  • Figure 6 A sleeve with perfect fit on the standard caliber
  • Figure 7 A sleeve on a spindle, but with too deep seat and down too much game
  • Figure 8 A sleeve on a standard caliber with tolerance window for checking the correct fit of the sleeve
  • Figure 9 A sleeve on a spindle, which is equipped with a temperature sensor, and associated CPU, for connecting hundreds of signal cables, and a display.
  • the invention is based on the recognition that the temperature of the spindle itself or the housing of the spindle bearing during operation is a reliable measure of the total imbalance load of the spindle. Because a spindle running with imbalance generates additional heat and noise due to its vibration. The resulting heat leads to an increase in their temperature. By measuring the temperature of the spindle or its stationary bearing housing, the quality of the sleeve can be determined.
  • the unbalance load is composed of the following parts:
  • a ring spinning machine is shown in a schematic cross section in Figure 1.
  • the machine has a chassis 1 on which the various components are mounted. Starting at the top you can see the creel 2, on which hang the flyer bobbins 3. Of these, there are always several for each spindle, so that there is always a stock and when a flyer bobbin 3 is used up, immediately a subsequent flyer bobbin 3 can donate more yarn.
  • the yarn 4 runs from the flyer bobbin 3 through a drafting device 5, in which the yarn 4 is aligned and stretched, after which it runs to the cop 6 and finally wound on the sleeve 8 through the ring rail 7.
  • the sleeve 8 is inserted on a driven spindle 9, which in turn is inserted in a spindle rail 10.
  • the trouble-free loading of the spindles with the sleeves requires a specific game between spindle and sleeve. This has the consequence that the spindles are loaded in the entire speed range with corresponding imbalance, in contrast to most other rotating machine elements that run mostly in the most balanced state possible. Furthermore, the problem-free attachment of the sleeves on the spindles also requires a strong one-sided or flying support the spindles, which in turn rarely occurs in the usual mechanical engineering, especially considering that the flying part of a textile spindle is easily three times longer than the bearing base.
  • High performance spindles are therefore in principle decoupled vibration technology of the machine. This means that both bearing points, ie the neck as well as the foot bearing, are arranged vibrationally with respect to the spindle bank. In addition to a first critical speed, a second critical speed must be run over as the speed increases, before the spindle comes into the speed range of its operation - today up to 25 ⁇ 00 rpm. Despite decoupling vibration from the machine, the geometric precision with respect to the ring stroke must be maintained. For this, elegant solutions were found in the mid-80s, through the use of springs on the neck and foot bearings, with certain minimum stiffness values, so that the tape tension for the drive of the spindle causes no skewing of the spindle.
  • FIG 2 a machine room with a variety of ring spinning machines is shown schematically simplified. This picture gives an idea of the large number of high-performance spindles 9 in operation and the corresponding number of sleeves 8 - of the order of tens of thousands. Above the machines, the flyer bobbins 3 are fed along rails 29. Each sleeve 8 should have a precise geometry within minimal tolerances, because in high-speed spinning the soft spindle barrel depends largely on well-fitting sleeves. Manufacturing tolerances and sleeve wear should therefore be controlled to ensure efficient production. Therefore, international standards have been established for such sleeves and also for the test spikes to control them, and many things have to be considered in their manufacture.
  • FIG. 3 shows a ring spinning sleeve 8 without flanging for placement on a spindle
  • Figure 4 shows a ring spinning sleeve 8 with flange 14 for placement on a spindle. It is therefore closed at its upper end.
  • they are tapered sleeves 8 with inner cone 1 1 and outer cone 12, which are designed for speeds of 18 ⁇ 00 to 25 ⁇ 00 U / min.
  • sleeves 8 without fittings must not become brittle at the end.
  • a glass fiber reinforced polypropylene with at least 30% glass fiber content is suitable.
  • the sleeves are equipped with fittings, only those made of stainless, high-strength steel are permitted and they must not protrude at the sleeve surface. They must be well anchored and not allowed to move or loosen. Cavities between sleeve and fitting are not permitted.
  • the sleeve inside should be as smooth as possible in the effective range of the sleeve coupling. The sleeve must be pressed with a maximum of 20N on the spindle. The inner edges at the top and bottom must have a radius or a slope of at least 0.5 mm. The inside of the sleeve and the ends of the sleeves must be sprayed clean. No burrs or remnants of the injection point may protrude.
  • a sleeve 8 is shown with a perfect fit on the standard caliber 15. It nestles snugly against the cone 17 of the spike 15 everywhere and the remaining areas on the spike 15 front and rear of the sleeve 8 must be within a certain prescribed range. They serve as a tolerance window 22 on the gauge.
  • the figure 7 shows a sleeve 8 plugged onto a spindle 9. The sleeve 8, however, sits on the spindle 9 with too deep seat and down with too much play. Such a sleeve 8 would have a fatal effect during operation and destroy a spindle 9 possibly within a very short time.
  • a sleeve 8 is plugged onto a standard caliber 15 with tolerance window 21 shown.
  • This tolerance window 21 allows the correct Seat of the sleeve 8 to examine at a glance. Nevertheless, it is hardly reasonable to check tens of thousands of pods 8 regularly by attaching to such standard caliber 15 by hand. And for this reason, it is also omitted in practice.
  • the test is unfortunately usually only before the first use of the sleeves 8. If they are worn or damaged in the course of their use, they remain in use until such a strong imbalance has built up that this is recognizable by the eye or the sleeve. 8 and her spindle 9 produce extraordinary noise. Only then will it be replaced. Based on all of the above, the meaning of the present invention will now be understood, namely to provide a method for automatically monitoring the quality of ring spinning sleeves 8 on spinning and twisting spindles 9 in order to recognize damaged sleeves early and to be able to replace them.
  • FIG. 9 shows a spindle 9 with its spindle base bearing 20 and its drive. This consists of a belt 23 which runs around the Wirtelpully 19 of the host ice 18 here.
  • the sleeve 8 is seated on a spindle 9 which is equipped with a temperature sensor 24 which senses the temperature of the spindle 9 or its stationary spindle base bearing 20 and immediately detects when the respective standard temperature is exceeded. Temperature sensors 24 are available in many possible variants.
  • a small lamp 30, for example an LED with associated circuitry may also be installed in place on each spindle, which will then light up as soon as the temperature of the relevant spindle, as measured by the temperature sensor, is adjusted to the circuit Value exceeds. It then lights up problematic sleeves immediately, for example, a red point of light, which is recognized very clearly when passing.
  • a central display can additionally display an overall picture of the state of all spindles 9 as described. The local optical display, however, helps to quickly find a problem causing sleeve or spindle.
  • non-contact infrared point sensors come into question, this being a more expensive solution.
  • the signals of these infrared point sensors can be transmitted via electrical cable 25 or wirelessly to the computer 26.
  • Several spindles 9 can be monitored by a single infrared point sensor by this by means of a servo motor pivotally successively alternately to different spindles 9 or its Fussspindellager 20 is aligned.
  • the signals can in turn be transmitted via cable 25 or contactlessly to the computer 26, via which the servomotors are also controllable. Although this does not guarantee permanent, but nevertheless periodic and closely monitored monitoring of spindle temperatures.
  • the display 27 can emit an audible warning, so that the staff can go immediately to the display 27 and instantly sees where the problem arose. Purposefully it can replace the defective sleeve 8 immediately, so that possible damage can be averted and downtime can be minimized. From each spindle 9 so lead at least two signal cable 25 to the computer 26 and this processes all incoming signals and shows the Results on the display 27.
  • the display 27 may be designed so that only just the problem-causing spindles 9 are displayed, or even that the current temperature is displayed to all spindles 9, or in the simplest case is merely displayed whether the temperature of the spindles 9 is within limits or exceeds an adjustable limit. Also possible is the simultaneous display of the aforementioned facts.
  • the device for carrying out the method for the automatic monitoring of the quality of ring spinning sleeves 8 on spinning and twisting spindles 9 includes for each ring spinning spindle 9 a ring spinning machine own temperature sensor 24, so that the temperature at each Spindle 9 or at their stationary spindle base bearings 20 of the ring spinning machine is continuously measurable.
  • each individual temperature sensor 24 From each individual temperature sensor 24, at least two electrical cables 25 lead to this computer 26, so that the temperature of each specific spindle 9 or its spindle base 20 can be displayed on this central display 27, and if one of them can be entered via an input interface of the computer 26 to the programmable logic controller Temperature value (for example, 40 ° C), an optical or acoustic signal from the display 27 can be issued. If this temperature is higher than a predetermined level, it is also possible to switch on a visible LED and / or optionally also to emit an acoustic signal. This means that in this spindle concerned 9 a bad spinning sleeve 8 is in use, which must be replaced. This measure ensures that the spinning tubes 9 are continuously subjected to automatic quality control.
  • Temperature value for example, 40 ° C

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention concerne un procédé dans lequel on mesure en continu la température au niveau de chaque broche (9) d'un continu à filer à anneaux. Une élévation de la température d'une broche (9) est immédiatement affichée sur un afficheur central (27). L'affichage identifie la douille (8) du continu à filer à anneaux concernée, de telle sorte que celle-ci peut être remplacée manuellement. Le dispositif pour la réalisation du procédé comprend, pour chaque broche (8) de continu à filer à anneaux, un capteur de température (24) qui lui est propre, de telle sorte que la température peut être mesurée en continu au niveau de chaque broche (9) du continu à filer à anneaux, le capteur de température (24) étant relié à la crapaudine (20) fixe de la broche. Le dispositif présente en outre une unité centrale (UC) (26), dans laquelle les signaux entrants de chaque broche (9) entrent chacun via un câble séparé (25) et sont transformés en signaux pour un afficheur central (27). L'UC (26) comporte un programme permettant de régler la température limite en fonction du type de machine, du type de broche et du type de douille, de telle sorte que lors du dépassement de cette température limite, un signal optique et, au choix, également acoustique, peut être affiché ou émis par l'afficheur (27).
EP15801458.9A 2014-12-03 2015-11-30 Procédé et dispositif pour la surveillance automatique de la qualité de tubes sur des broches de filature et de retordage Withdrawn EP3227481A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01862/14A CH710443B1 (de) 2014-12-03 2014-12-03 Verfahren und Einrichtung zur automatischen Überwachung der Qualität von Hülsen auf Spinn- und Zwirn-Spindeln.
PCT/EP2015/078022 WO2016087349A1 (fr) 2014-12-03 2015-11-30 Procédé et dispositif pour la surveillance automatique de la qualité de tubes sur des broches de filature et de retordage

Publications (1)

Publication Number Publication Date
EP3227481A1 true EP3227481A1 (fr) 2017-10-11

Family

ID=52648772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15801458.9A Withdrawn EP3227481A1 (fr) 2014-12-03 2015-11-30 Procédé et dispositif pour la surveillance automatique de la qualité de tubes sur des broches de filature et de retordage

Country Status (3)

Country Link
EP (1) EP3227481A1 (fr)
CH (1) CH710443B1 (fr)
WO (1) WO2016087349A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018125368A1 (de) * 2018-10-12 2020-04-16 TRüTZSCHLER GMBH & CO. KG Textilmaschine mit einem Streckwerk
CN112904042B (zh) * 2021-01-20 2023-03-17 浙江理工大学 一种锭速传感器、物联网锭速监控系统及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US371124A (en) * 1887-10-04 Wiley g
CH667112A5 (de) 1985-07-24 1988-09-15 Uster Spindel Motoren Maschf Einrichtung zum radial beweglichen befestigen eines spindellagergehaeuses einer spinn- oder zwirnspindel an einer spindelbank.
JPH0814044B2 (ja) * 1987-10-09 1996-02-14 株式会社日立製作所 紡績機械
EP0463529B1 (fr) * 1990-06-28 1994-10-26 Maschinenfabrik Rieter Ag Procédé et dispositif pour le fonctionnement d'un métier à filer à anneau ou d'un métier à retordre à anneau à une vitesse de rotation maximum possible de la broche
DE4211684A1 (de) * 1992-04-07 1993-10-14 Rieter Ag Maschf Verfahren und Vorrichtung zur Drehzahlregelung von Spinnmaschinen
JPH0610220A (ja) * 1992-06-22 1994-01-18 Toyota Autom Loom Works Ltd 紡機のスピンドルの異常発熱検知装置
DE10342381A1 (de) * 2003-09-13 2005-04-21 Saurer Gmbh & Co Kg Ringspinnspindel mit einer Einrichtung zum Dämpfen ihrer Schwingungen

Also Published As

Publication number Publication date
CH710443B1 (de) 2018-07-31
CH710443A2 (de) 2016-06-15
WO2016087349A1 (fr) 2016-06-09

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