WO2008037096A1 - Dispositif de prélèvement de fibres par grignotage - Google Patents

Dispositif de prélèvement de fibres par grignotage Download PDF

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Publication number
WO2008037096A1
WO2008037096A1 PCT/CH2007/000429 CH2007000429W WO2008037096A1 WO 2008037096 A1 WO2008037096 A1 WO 2008037096A1 CH 2007000429 W CH2007000429 W CH 2007000429W WO 2008037096 A1 WO2008037096 A1 WO 2008037096A1
Authority
WO
WIPO (PCT)
Prior art keywords
faserabsaugkanal
tower
movable cover
fiber
rotational movement
Prior art date
Application number
PCT/CH2007/000429
Other languages
German (de)
English (en)
Inventor
Gerhard Gschliesser
Simon Heiniger
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 WO2008037096A1 publication Critical patent/WO2008037096A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/06—Details of apparatus or machines
    • D01G7/10—Arrangements for discharging fibres

Definitions

  • the present invention relates to a device for removing fibrous material with a bale-removing machine, which essentially has a movable removal tower and a fiber extraction channel.
  • a beam with slot-shaped recesses is attached over the entire length of the bale removing machine.
  • inductive sensors are carried along on the ablation tower. With these sensors, the number of overrun slots is counted and determined with an evaluation of the distance traveled by the ablation tower length. Also in this application, by using multiple sensors to detect forward or reverse travel, the position of the picking tower can be determined in addition to the length traveled.
  • the bar attached to the flake discharge duct must be very precisely aligned over its entire length of up to 50 or more meters, because the measurement with inductive sensors is carried out in a narrow space. leranzfeld works reliably.
  • the sensors are to be guided over the entire length at a distance of a few millimeters from the beam.
  • Another disadvantage affecting the reliability of the measurement is that both the probes and the beam are subject to inevitable contamination.
  • the components are mounted outside the flake discharge channel and thus not protected from the environment.
  • the patent specification CH 686 188 A5 shows a length measurement in which an incremental rotary encoder is used.
  • the axis of this Drehweggebers is connected to a rotating toothed element, such as a gear, this gear in turn engages in a matching counter-element, which is fixedly mounted.
  • a rack or timing belt or the like is attached to the fixedly mounted flake suction duct.
  • An evaluation unit calculates the translational movement of the ablation tower and determines its position.
  • a disadvantage of this arrangement is that a measuring device or at least parts thereof, such as a toothed rack, must be arranged over the entire length of the possible travel path of the ablation tower. Since an exact interaction of the components is necessary, the measuring device must be aligned in its entire length with a low tolerance. Damage or contamination may cause measurement errors. Such a measurement is expensive in its construction and maintenance.
  • the invention is therefore based on the object to provide a device of the type mentioned, which does not have the mentioned disadvantages or to a small extent, a substantial simplification in assembly and adjustment of the length measurement results and allows significant cost savings in maintenance and operation of the ablation device.
  • the structure of the bale removing machine itself is taken into account, whereby existing elements of the machine are utilized for the measuring arrangement.
  • the ablation tower slides over the stationary fiber extraction channel underneath.
  • the Faserabsaugkanal is firmly anchored to the ground.
  • the ablation tower is connected to the Faserabsaugkanal in such a way that the Abtragarm, which is attached to the Abtragturm, removed from the top of Fasergutballen fiber flakes through the interior of the Abtragturmes the Faserabsaug- channel can be supplied.
  • the fiber material is transported through the Faserabsaugkanal using a blower, the arrangement of the blower or fan is chosen so that the fiber flakes are sucked due to a pressure prevailing in the channel vacuum.
  • the suction direction thus effected always points in the same direction, regardless of the location of the ablation tower.
  • the length of the effectively used suction channel is shortened by the method of the ablation tower in one direction and extended in the other direction. Because this also changes the location of the entry of the fiber flakes into the suction channel, the channel cover is of particular importance.
  • the fiber flake channel has a cover, which can migrate with the Abtragturm.
  • Known constructions of covers have, inter alia, a flexible resp. movable masking tape on.
  • a movable cover strip is to be understood as meaning a strip which is manufactured from an elastic material or with a corresponding wall thickness such that the strip itself movable resp. is flexible.
  • the cover strip can be rotated in the longitudinal axis, deflected in the transverse axis or wound up.
  • This masking tape can be moved in various ways with the movement of the Abtragturmes that the channel opening is always below the Abtragturmes. For example, constructions are known where the masking tape at the end of the fiber exhaust duct is returned to the other end of the flock exhaust duct via deflecting rollers, the masking tape being interrupted at the location of the ablator and thus opening an opening in the fiber exhaust duct.
  • the two ends of the cover strip are firmly connected to the Abtragturm. Now moves the Abtragturm, the masking tape is moved along and guided around the pulleys; The masking tape is practically pulled along by the ablation tower.
  • other constructions are known, such as winding and unwinding of the cover strip to seal the used length of the Faserabsaugkanals. It is located on the Abtragturm a winding roll which rolls up the cover strip according to the distance traveled by the Abtragturmes or rolls. This winding and unwinding happens simultaneously to the movement of the Abtragturmes.
  • the masking tape is guided between the winding roll and the Faserabsaugkanal via a deflection roller.
  • a measuring arrangement according to the invention is attached to a common element of all construction types, such as the deflection roller of the cover band. This has the advantage that due to the installation location of these deflection rollers, the measuring arrangement also comes to rest against a place protected from contamination.
  • the pulleys are mounted either in the fiber extraction channel interior or in the removal tower.
  • the actual measuring arrangement consists of an expelling element, which rotates with the deflection roller and is firmly connected to the deflection roller.
  • This element can be built as a gear or a disc with mounted in a certain diameter openings or the like, turntable.
  • the breakthroughs or the teeth are passed by a rotary motion at a sensor and registered by this.
  • As a sensor for example, inductive proximity switches can be used. These generate with each passing the breakthrough or tooth an electrical impulse.
  • a corresponding evaluation unit can be calculated due to these pulses, the distance covered by the masking tape and thus the Abtragturmes. If more than one of these sensors is also used, it is possible to differentiate between forward and reverse travel of the ablation tower if the gearshift is selected.
  • the position of the ablation tower in relation to the Faserabsaugkanal and thus in relation to the fiber material can be determined.
  • the driving speed of the ablation tower can be determined with appropriate evaluation.
  • sensors for scanning the rotating wegstageden element also other types can be used as the inductive switch shown as an example, for example, light barriers or other types of optical scans, which can recognize, for example, directly attached to the deflection roller markers. It is also the use of pressure sensors or simple mechanical switch, which are pressed by the expelling element conceivable.
  • the use of a Drehweggebers with the same measuring arrangement is possible. With a rotary encoder, the position, speed and longitudinal displacement are measured directly.
  • a Drehweggeber also has the advantage that even after a power failure in the system, the position of the Abtragturmes must not be redetermined by crossing a reference point.
  • An inventive measuring arrangement can be constructed within a deflection roller or outside the deflection roller. Due to the protected installation location only a small contamination of the measurement is possible. Also, with a measuring arrangement according to the invention, no adjustment of the measuring device by daily operation is possible, since the transmitting element and the measuring sensor or rotary encoder are fastened to the same construction element. It is not a stationary wegstagedes element such as a rack driven off, but the translational movement of the Abtragturmes respectively masking tape is measured via an existing rotary motion.
  • FIG. 1 is a side view of a conventional Ballenabtragsmaschine
  • Fig. 2 is a top view of a conventional Ballenabtragsmaschine of FIG. 1st
  • FIG. 3 shows an enlarged view from above of the fiber discharge part from the fiber extraction channel, wherein a measuring arrangement according to the invention is indicated
  • FIG. 4 a side view of FIG. 3
  • FIG. 5 a view of a measuring arrangement according to the invention inside a deflection roller
  • FIG. 1 shows a side view and Fig. 2 in a plan view of a per se known Ballenabtragsmaschine 1 in a schematic representation.
  • a bale removal machine 1 consists essentially of a removal member, a so-called removal tower 2, which is moved along a fixedly mounted Faserabsaugkanals 3. On both sides of the, up to 50 or more meters long, fiber extraction channel 3, compressed raw fibers in the form of bales 4 are laid out.
  • the fiber to be removed may consist of natural fibers or synthetic fibers or mixtures thereof.
  • the removal tower 2 is equipped with a height-adjustable Abtragarm 5.
  • the Abtragturm 2 While the Abtragturm 2 is moved along the bale 4, with the Abtragarm 5 which a Abtragorgan 6 contains 4 processed from the top 7 of the bales of fiber from the bale 4 and fed to the interior of the Abtragturmes 2.
  • the fiber material is led away via a Faserabsaugkanal 3 and fed via pipes 13 for further processing.
  • the Faserabsaugkanal 3 is connected via pipes 13 with a blower 13, which generates a vacuum in the Faserabsaugkanal 3 and sucks the fiber through the Faserabsaugkanal 3 from the ablation tower 2 ago.
  • the Faserabsaugkanal 3 is separated into two parts, used in the conveyor channel as part 9 and on the side facing away from the Abtragturm 2 ago the blower remote part 10.
  • the movement 11 of the Abtragturmes in the direction of the blower 14 (forward) of the conveyor channel used part 9 of the Faserabsaugkanals shortened; Accordingly, the part used as a conveyor channel 9 of the Faserabsaugkanals is extended in a movement 12 of the ablation tower away from the fan 14 (backward).
  • the cover 8 of the Faserabsaugkanals 3 is flexible resp. movable.
  • the length of a conveyor 9 used as a conveying channel portion of the Faserabsaugkanals 3 is constantly changing, which requires a constant adjustment of the cover 8 of the Faserabsaugkanals 3.
  • FIGS. 3 and 4 show an enlarged view of the fiber discharge part from the fiber extraction channel 3, wherein a measuring arrangement according to the invention is attached to the visible deflection roller 15 of the cover strip 8.
  • Fig. 3 shows a view from above wherein the Faserabsaugkanal 3 is shown only schematically and the cover 8 only the lower half. 4 shows a side view of the same situation, looking into the fiber suction channel 3.
  • FIG. 3 shows a view from above wherein the Faserabsaugkanal 3 is shown only schematically and the cover 8 only the lower half. 4 shows a side view of the same situation, looking into the fiber suction channel 3.
  • FIG. 3 shows an inductive measuring sensor 18 which scans the rotational movement of the rotary disk 17 and forwards them in the form of electrical pulses via a cable 19 to the evaluation unit (not shown).
  • the turntable 17 and the measuring sensor 18 are mounted in the fiber suction duct 3.
  • the components are protected from contamination, this effect is due to the close arrangement of the suction nals 13 still supported.
  • an inductive sensor 18 is an exact compliance with the switching distance x for the flawless function important.
  • a single adjustment of the switching distance x during assembly is sufficient since the measuring sensor 18 is fastened to the same component of the fiber suction channel 3 as the deflection roller 15 and thus the turntable 17.
  • An operational adjustment of the switching distance x is almost excluded by the inventive measuring arrangement.
  • FIG. 5 shows a view of a measuring arrangement according to the invention inside a deflection roller 15.
  • the deflection roller 15 is shown by way of example as a tube construction with two side shields 20, 21. At each side plate 20, 21, a stub shaft 22 is fixedly mounted which is located in the axis of rotation 16 of the deflection roller.
  • the deflection roller 15 is rotatably supported by the two stub shafts 22 in a bearing.
  • Fig. 5 has been dispensed with an illustration of the Faserabsaugkanals 3, since the deflecting roller 15 can be located at any point in the Ballenabtragmaschine 1.
  • the one side plate 21 is designed so that it can take over the directing function of the turntable 17 directly.
  • On an additional hub 17 as shown in Fig. 3 and 4 can be omitted in this embodiment. This makes it possible to arrange a sensor 18 at least partially within the deflection roller 15.
  • FIG. 6 shows exemplary embodiments according to the invention of an expelling element such as a turntable 17.
  • the turntable 17 is firmly connected to the shaft 22 of the deflection roller 15. On the circumference of the turntable 17 are located in the lower half of Fig. 6 lying on a radius apertures 24. In the upper half of FIG. 6, a toothing 23 of the outer surface of the turntable 17 is shown. If the turntable is set in motion by the deflection roller 15, the probes 18, which are attached in a stationary manner, are counted past apertures 24 or else individual teeth of the toothing 23 are counted by the measuring sensor 18 and detected as electrical Pulses forwarded to an evaluation unit (not shown).
  • the pulses of the sensor 18 are registered as a function of time, not only the number of revolutions and thus the distance covered by the ablation tower 2 but also the travel speed of the ablation tower 2 can be determined.
  • the direction of rotation of the hub 17, respectively. it is possible the direction of travel of the Abtragturmes 2 and thus also the position of the Abtragturmes 2 within the Ballenabtragsmaschine 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un dispositif de prélèvement de fibres par grignotage à l'aide d'une machine de grignotage de balles (1) qui comporte une tour mobile de grignotage (2) et un canal fixe d'aspiration de fibres (3). Le canal d'aspiration de fibres (3) est pourvu d'un couvercle mobile (8) qui est doté en au moins un de ses emplacements de renvoi (15) de moyens (17, 18) destinés à déterminer un déplacement longitudinal (11, 12) de la tour de grignotage (2).
PCT/CH2007/000429 2006-09-26 2007-08-30 Dispositif de prélèvement de fibres par grignotage WO2008037096A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH15332006 2006-09-26
CH1533/06 2006-09-26

Publications (1)

Publication Number Publication Date
WO2008037096A1 true WO2008037096A1 (fr) 2008-04-03

Family

ID=38578419

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2007/000429 WO2008037096A1 (fr) 2006-09-26 2007-08-30 Dispositif de prélèvement de fibres par grignotage

Country Status (1)

Country Link
WO (1) WO2008037096A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3239370A1 (fr) 2016-04-22 2017-11-01 Maschinenfabrik Rieter AG Procédé de détermination de position longitudinale et de positionnement longitudinal d'un organe de prélèvement d'une ouvreuse de balles et ouvreuse de balles

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8213273U1 (de) * 1982-05-07 1983-07-21 Hergeth GmbH & Co KG, 4408 Dülmen Vorrichtung zum abfoerdern des gutes beim abtragen desselben von in reihe aufgestellten ballen aus spinngut
US4813615A (en) * 1983-10-01 1989-03-21 Trutzschler Gmbh & Co., Kg Method and apparatus for operating a bale opener, particularly as a function of the bale height
DE3926482A1 (de) * 1989-08-10 1991-02-14 Rieter Ag Maschf Verfahren und vorrichtung zum betrieb einer ballenabtragmaschine
US5121418A (en) * 1989-08-10 1992-06-09 Maschinenfabrik Rieter Ag Distance of travel measuring device for use with a bale opening machine
CH686188A5 (de) * 1991-06-17 1996-01-31 Truetzschler & Co Vorrichtung zum Abtragen des Fasergutes von Textilfaserballen .
EP1105556B1 (fr) * 1999-02-17 2004-04-07 Lakshmi Machine Works Limited Raboteur de balles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8213273U1 (de) * 1982-05-07 1983-07-21 Hergeth GmbH & Co KG, 4408 Dülmen Vorrichtung zum abfoerdern des gutes beim abtragen desselben von in reihe aufgestellten ballen aus spinngut
US4813615A (en) * 1983-10-01 1989-03-21 Trutzschler Gmbh & Co., Kg Method and apparatus for operating a bale opener, particularly as a function of the bale height
DE3926482A1 (de) * 1989-08-10 1991-02-14 Rieter Ag Maschf Verfahren und vorrichtung zum betrieb einer ballenabtragmaschine
US5121418A (en) * 1989-08-10 1992-06-09 Maschinenfabrik Rieter Ag Distance of travel measuring device for use with a bale opening machine
CH686188A5 (de) * 1991-06-17 1996-01-31 Truetzschler & Co Vorrichtung zum Abtragen des Fasergutes von Textilfaserballen .
EP1105556B1 (fr) * 1999-02-17 2004-04-07 Lakshmi Machine Works Limited Raboteur de balles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3239370A1 (fr) 2016-04-22 2017-11-01 Maschinenfabrik Rieter AG Procédé de détermination de position longitudinale et de positionnement longitudinal d'un organe de prélèvement d'une ouvreuse de balles et ouvreuse de balles

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