EP0408491A1 - Procédé et appareil pour éliminer les déchets dans une machine de nettoyage des fibres - Google Patents

Procédé et appareil pour éliminer les déchets dans une machine de nettoyage des fibres Download PDF

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Publication number
EP0408491A1
EP0408491A1 EP90810455A EP90810455A EP0408491A1 EP 0408491 A1 EP0408491 A1 EP 0408491A1 EP 90810455 A EP90810455 A EP 90810455A EP 90810455 A EP90810455 A EP 90810455A EP 0408491 A1 EP0408491 A1 EP 0408491A1
Authority
EP
European Patent Office
Prior art keywords
outlet
sensors
machine
pressure
level
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.)
Ceased
Application number
EP90810455A
Other languages
German (de)
English (en)
Inventor
René Schmid
Peter Anderegg
Ulf Schneider
Martin Kyburz
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0408491A1 publication Critical patent/EP0408491A1/fr
Ceased legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/18—Arrangements for discharging fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/04—Opening or cleaning fibres, e.g. scutching cotton by means of beater arms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/20—Framework; Casings; Coverings; Grids

Definitions

  • the invention lies in the field of textile technology and relates to a method for disposing of the waste in a fiber cleaning machine and a device in such a machine according to the preamble of claim 1.
  • the cotton fibers pressed into bales must not only be brought out of their compressed, tangled position until they are spinnable, but must also be freed of all types of contamination.
  • the pressed cotton is dissolved in flakes in the bale removal machine and transferred to a cleaning machine by means of a conveying air stream. Depending on the level of contamination, this is a coarse or fine cleaning machine, both of which are generally used.
  • the present invention is a device which is preferably used in coarse cleaning machines, although it can of course also be used in a correspondingly adapted form in a fine cleaning machine.
  • the invention presented here thus relates to a method for disposing of the resulting waste in such a way that the cleaning process is not significantly impaired by the discharge of this waste which is required from time to time, and to a device which reduces the unpredictable discharge of good fibers into the discharge device. in which the discharge process of the separated dirt particles is controlled in such a way that only controlled amounts of good fibers go away with the waste.
  • the cleaning machine shown in FIG. 1 has an opening roller 2, which is usually equipped with striking pins 1 and which is rotatably mounted in a housing 3 about a horizontal axis.
  • the housing 3 has an inlet 4 above the top of the opening roller 2 and an outlet 5, which are connected via a space 6, for a conveying air flow transporting textile fibers in flake form.
  • the inlet 4 is arranged at one end of the roller 2, while the outlet 5 is arranged at the other end of the roller 2.
  • three baffles 26, 27 and 28, which are inclined to the axis of the roller, are arranged above the top of the opening roller 2, which delimit two transfer chambers between the top of the roller 2 and the upper wall of the housing 3.
  • Figure 2 shows the cleaning machine of Figure 1 in longitudinal section to show that the flocculation does not simply make a cycle, but runs through a spiral path that can be disturbed at any point from the dynamic pressure chamber.
  • the flock flow runs in on one side of the cleaning roller 2 and is forced into a spiral course by the guide plates 26, 27, 28 which are inclined to the direction of flow, in order to emerge again at the other end of the cleaning roller.
  • brackets 81 and 82 are provided for control elements of the grate bars, on which, or on specially provided for this purpose Brackets that can be attached to sensors 16 to be discussed, for example.
  • the trimelle has a rectangular cross-section and is roughly the shape of a tub.
  • the aerodynamic (pneumatic) disturbance of the cleaning flow does not occur due to the amount of false air flowing from the side with higher pressure to the side with lower pressure, but through its dynamics, that is, its acceleration and flow speed. So you have to try to make the dynamics of this disturbance negligible compared to the dynamics of the cleaning process. If the false air dynamics are kept correspondingly small, shown graphically, instead of letting them run over into a smooth bell pulse instead of a rectangular pulse (switching on / switching off), the disturbance is considerably less. The relatively light, somewhat flaky outlet is then briefly and easily become one due to the false air flow towards the exit Filter mat compresses, so that the false air flow is delayed. This leads to the desired damping.
  • this can be implemented in terms of apparatus by using a collecting trimmel 7 with a lock wheel 8 in the form of a rotating slat, that is a driven axis 8.1 with wing-shaped slats 8.2.
  • a certain part of the entire outlet is separated per partial rotation of the lock wheel, which is reflected in a lowering of the fill level.
  • the still protruding layer 12 is sufficient to dampen any pressure drop and in the continuous cleaning process the filter layer is built up again by the trickling down outlet.
  • This ejection / assembly process is controlled by weight and / or level sensors 15, 16.1, 16.2, 17.1, 17.2, which are shown schematically in FIG.
  • additional means 13, 14 are provided to prevent unwanted pressure equalization or pressure reversal. These agents are usually seals that have a valve effect.
  • Figure 3 shows in its schematic representation quite well the aerodynamic or pneumatic conditions in the overall apparatus.
  • Above the grate bars 9 and 10 runs the flake stream, the flakes of which are conveyed over the grate bars, so that this stream cannot be regarded as a homogeneous flow.
  • the bars and the dynamic pressure built up in room 3 form a subtle equilibrium in a border zone, which is important not only for a clean separation of the fibers from the dirt particles, but also for the fibers not getting out of the stream after the separation.
  • the boundary layer must therefore not be “disturbed” and the disposal of the outlet must be dynamically decoupled.
  • the trimelle is closed at the top, at the transition between the dynamic pressure chamber 30 and the discharge chamber 30.1.
  • flexible tabs 7.1, 7.2 are attached, which are pressed against the trim wall by the dynamic pressure.
  • Pressure fluctuations are inevitable in the lower space 30.1, since a spontaneous negative pressure is generated in the suction space 30.2 for suction, which draws air from the space 30.1 through the opening 18, which passes through the opening 13 into the suction space 30.1.
  • This air is therefore sucked in for the discharge and passes through the opening 18 into the room in which the outlet is conveyed, so that the outlet conveyed by the impeller 8 is sucked off with this suction air.
  • Such a lock is called "blow-through lock” in the technical language.
  • the pressure in room 30.1 is greater than in suction pipe 11 so that the false air through the trimelle always flows out of room 30 with the stable excess pressure through the outlet filter and not in the direction of the dynamic pressure chamber.
  • the pressure ratios are: room 30 overpressure, room 30.1 overpressure to normal pressure, room 30.2 underpressure.
  • the pressure gradient runs from 30 to 30.1 to 30.2, the dynamic pressure in space 30 being adjacent to two different pressure differences. Since the trimelle with the lock wheel is also subjected to a weighing process, it must be able to be mechanically decoupled, at least during the weighing, in other words, there should be no permanent seals paw.
  • pressure seals are preferably used, which are also shown in FIGS. 3 and 4 as tabs, which are only present in the space 30.2 when there is negative pressure. All seals therefore have a valve effect on the one hand and can be decoupled for a weighing process on the other hand, since the weighing process takes place before the outlet is discharged.
  • the fill level sensors are a light barrier 15 (an ultrasound distance sensor with transmitter and receiver can also be used, for example at points 16.1 and 16.2).
  • the light barrier can be used as a limit value sensor, while the ultrasonic sensor is used for measuring the current fill level, with the signals of which the damping filter layer is regulated. If only one light barrier is used, the following applies: refill the light barrier open, ie no ejection; Light barrier interrupted, eject.
  • the pneumatic disposal which usually consists of spontaneous suction
  • color measurement sensors can also be arranged which measure the color of the outlet.
  • the sensors themselves are not shown here, the numbers 16.1 and 16.2 only show the location of sensors, which are selected in number and type in accordance with the operating specifications.
  • cleaning it may be desirable for good fibers to get into the outlet, from where they are then separated in a second cleaning cycle. For example, this is the case when cleaning has to be carried out very intensively and the intensity is too great to remove the contamination in a single operation. This requires machine settings in such a way that a certain degree of brightness of the outlet results, which can be determined with the optosensors.
  • the valve device 13 which acts as a check valve, consists here of a sieve plate covered with a film.
  • rubber sleeves 14 or the like are attached to the exit of the Trimelle, which are closed or pressed on during ejection by the normal pressure / suction negative pressure difference and (automatically) decouple during weighing.
  • the decoupling can be neglected if the connection between the trimelle and the housing 3 the weight measurement does not interfere with sufficient flexibility.
  • the trimelle must either be completely free or be essentially unaffected by the flexibility of the connections and should not be exposed to accelerations such as wobbling or vibration.
  • FIG 4 now shows the device according to the invention based on Figure 2 in longitudinal section.
  • the catch trough 7, here called trimelle, with the lock wheel 8 extends over the length of the opening roller 2 arranged at the top of the machine.
  • the aerodynamic boundary zone is hereby an expanded jacket shell-like, with the thickness of the boundary zone, on the smaller radius (inside) of which the cleaning stream runs and on the larger radius (outside) the dynamic pressure builds up.
  • the whole is a dynamic balance, on the one hand a dynamic process and on the other a static milieu, in between the interface with a relatively large vulnerable extent.
  • Parts of the device, such as the trimelle itself, the sensors and the actuators should be arranged in a static environment, that is the room 30.
  • This space 30 is shielded from the environment with a lower pressure, that is the space 30.1. This is done, for example, by sealing edges, sealing lips 7.1, 7.2 and the like. at the trimelle 7 and through the stratification 12 of the outlet above the lock wheel 8.
  • the outlet 12 is expelled by suction, that is, in the suction pipe 20, that is the room 30.2 is a further negative pressure compared to the room 30.1.
  • the pressure equalization takes place through the valve 13. False air escaping from the room 30 must pass through the filter layer 12 of waste material and through the leaks between the lock wheel and Trimelle into the room 30.2.
  • FIG. 4 also shows the drive 21 for the lock wheel, which is shown in a stylized manner and which, for example, transmits the torque to the lock wheel via a V-belt 21.1 and a pullover 21.1.
  • the sensors were used in connection with FIG. 3 already discussed and the actuator is not the subject of this invention.
  • FIGS 5A, 5B and 6 show in vertical and in longitudinal section a simplified embodiment in which the lock wheel is dispensed with and an adequately designed suction tube 19 is used instead.
  • An adequate design means that the suction pipe has openings (slots or holes) through which the outlet can be discharged (sucked away), which process proceeds according to the previously explained principle.
  • a suction process can be carried out, which is shorter in time and less powerful than the blow-out air blast through the suction pipe. With this suction process, a part of the outlet above it is drawn through the openings in the pipe into the suction pipe 19 in order to load the suction channel. This relatively gentle process can be repeated again in order to finally blow out the suction pipe with a blow-out process.
  • Figure 5 shows in the Trimelle two additional, mutually offset cascades 22 and. 22.1, with which the discharge of the outlet on the trimelle walls is made possible by extending the outlet to the outside.
  • a degree of compression of the filter mat can be maintained despite the ejection process.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP90810455A 1989-07-12 1990-06-21 Procédé et appareil pour éliminer les déchets dans une machine de nettoyage des fibres Ceased EP0408491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261389 1989-07-12
CH2613/89 1989-07-12

Publications (1)

Publication Number Publication Date
EP0408491A1 true EP0408491A1 (fr) 1991-01-16

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ID=4237708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810455A Ceased EP0408491A1 (fr) 1989-07-12 1990-06-21 Procédé et appareil pour éliminer les déchets dans une machine de nettoyage des fibres

Country Status (3)

Country Link
US (2) US5033166A (fr)
EP (1) EP0408491A1 (fr)
JP (1) JPH0345720A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485013A1 (fr) * 1990-11-05 1992-05-13 FRATELLI MARZOLI & C. S.p.A. Procédé et dispositif pour améliorer le degré de homogénéisation de matériau fibreux, spécialement des fibres de coton, dans un mélangeur ou analogue
CN105369395A (zh) * 2015-11-27 2016-03-02 新疆维吾尔自治区纤维检验局 一种机采棉双排螺旋棉花开清筒
CN112012173A (zh) * 2020-08-18 2020-12-01 新昌县七星街道博创机械厂 一种水利工程用水闸垃圾拦截自清理装置
CN112030273A (zh) * 2020-09-11 2020-12-04 宁夏如意科技时尚产业有限公司 一种高效安全的清花机
CH717716A1 (de) * 2020-08-05 2022-02-15 Rieter Ag Maschf Erfassung des Abganges in einer Faservorbereitungsanlage.

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* Cited by examiner, † Cited by third party
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DD299322A5 (de) * 1989-09-21 1992-04-09 Maschinenfabrik Rieter Ag,Ch Verfahren und vorrichtung zur feinreinigung von textilfasern
US5237727A (en) * 1990-07-02 1993-08-24 Maschinenfabrik Rieter Ag Adjustable cleaning of fibers in a spiralled air path and apparatus
EP0481302A3 (en) * 1990-10-16 1992-09-02 Maschinenfabrik Rieter Ag Grid for an opening roller of a spinning machine
DE10063861B4 (de) * 2000-12-21 2014-08-28 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Reiniger, Öffner, Karde o. dgl. zur Erfassung von ausgeschiedenem Abfall
CN102234928A (zh) * 2010-05-06 2011-11-09 乌斯特技术股份公司 双刺辊机构的纤维杂质重量分析装置
CN103741269A (zh) * 2013-12-24 2014-04-23 吴江市恒艺丝绸整理厂 一种开棉机
CN105506749A (zh) * 2015-11-27 2016-04-20 新疆维吾尔自治区纤维检验局 一种机采棉棉花开清筒
CN105369397A (zh) * 2015-11-27 2016-03-02 新疆维吾尔自治区纤维检验局 一种卧式机采棉轧花预处理装置
IT201900006671A1 (it) * 2019-05-09 2020-11-09 Marzoli Machines Textile Srl Dispositivo e metodo per la misura del peso di scarti di una lavorazione tessile per la preparazione alla filatura
RU2710829C1 (ru) * 2019-06-24 2020-01-14 Алексей Федорович Плеханов Колосниковая решетка очистителя волокнистого материала
CN110592734B (zh) * 2019-08-14 2021-03-30 枣阳市万通棉纺实业有限公司 一种棉纱加工用多功能梳棉机
CN110760953B (zh) * 2019-11-14 2023-09-05 青岛世誉双羊机械制造有限公司 一种清梳落棉测集仪
WO2023277844A1 (fr) * 2021-06-30 2023-01-05 Kahramanmaraş Sütçü İmam Üni̇versi̇tesi̇ Dispositif d'ouverture de fibre synthétique

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Publication number Priority date Publication date Assignee Title
FR1220618A (fr) * 1958-05-12 1960-05-25 Rieter Joh Jacob & Cie Ag Nettoyeuse-ouvreuse à tambour unique
DE3030278A1 (de) * 1980-08-09 1982-02-25 Temafa, Textilmaschinenfabrik Meissner, Morgner & Co Gmbh, 5070 Bergisch Gladbach Aufbereitungsmaschine fuer fasermaterial
DE3133366A1 (de) * 1981-08-22 1983-03-10 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum oeffnen und reinigen von baumwollabfaellen
GB2210907A (en) * 1987-10-09 1989-06-21 Hollingsworth Gmbh Controlling cleaning and opening fibres

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485013A1 (fr) * 1990-11-05 1992-05-13 FRATELLI MARZOLI & C. S.p.A. Procédé et dispositif pour améliorer le degré de homogénéisation de matériau fibreux, spécialement des fibres de coton, dans un mélangeur ou analogue
CN105369395A (zh) * 2015-11-27 2016-03-02 新疆维吾尔自治区纤维检验局 一种机采棉双排螺旋棉花开清筒
CH717716A1 (de) * 2020-08-05 2022-02-15 Rieter Ag Maschf Erfassung des Abganges in einer Faservorbereitungsanlage.
US11976388B2 (en) 2020-08-05 2024-05-07 Maschinenfabrik Rieter Ag Recording of trash in a fiber preparation system
CN112012173A (zh) * 2020-08-18 2020-12-01 新昌县七星街道博创机械厂 一种水利工程用水闸垃圾拦截自清理装置
CN112012173B (zh) * 2020-08-18 2021-05-28 广西同扬建设工程有限公司 一种水利工程用水闸垃圾拦截自清理装置
CN112030273A (zh) * 2020-09-11 2020-12-04 宁夏如意科技时尚产业有限公司 一种高效安全的清花机
CN112030273B (zh) * 2020-09-11 2021-08-20 宁夏如意科技时尚产业有限公司 一种高效安全的清花机

Also Published As

Publication number Publication date
US5033166A (en) 1991-07-23
US5107572A (en) 1992-04-28
JPH0345720A (ja) 1991-02-27

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