EP3009539B1 - Ouvreuse de balles - Google Patents

Ouvreuse de balles Download PDF

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Publication number
EP3009539B1
EP3009539B1 EP15002849.6A EP15002849A EP3009539B1 EP 3009539 B1 EP3009539 B1 EP 3009539B1 EP 15002849 A EP15002849 A EP 15002849A EP 3009539 B1 EP3009539 B1 EP 3009539B1
Authority
EP
European Patent Office
Prior art keywords
fiber
abtragarm
stripping
load cell
lifting gear
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.)
Active
Application number
EP15002849.6A
Other languages
German (de)
English (en)
Other versions
EP3009539A1 (fr
Inventor
Alexander Schmid
Gerhard Gschliesser
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 EP3009539A1 publication Critical patent/EP3009539A1/fr
Application granted granted Critical
Publication of EP3009539B1 publication Critical patent/EP3009539B1/fr
Active legal-status Critical Current
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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
    • D01G7/04—Breaking or opening fibre bales by means of toothed members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • 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
    • D01G7/14—Driving arrangements
    • 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 invention relates to a bale opener for removing fiber flakes from fiber bales with a mounted on a chassis or bogie removal tower and with a Abtragarm.
  • Bale removing machines or bale openers are used to remove fibers or fiber flakes from pressed fiber bales.
  • a removal organ is moved across the fiber bales.
  • the removal member is attached to a Abtragarm, which is adjusted in height to the present fiber bales.
  • the Abtragarm in turn is held on a Abtragturm.
  • the ablation tower allows the ablation element to be moved over the ablated surface of the fiber bales.
  • the removal tower is arranged on a chassis or a bogie. With a chassis, which is usually performed on rails, can be driven along a row of bales. If the fiber bales are arranged in a circle around the removal tower, the removal tower is arranged on a bogie.
  • a combination of landing gear and bogie is when fibers or fibrils are removed in one direction from a first row of fiber bales and in the opposite direction from a second row of fiber bales.
  • the bale opener is at the beginning of processing lines in a spinning preparation (processing) for the processing of fiber material, such as cotton or synthetic fibers or mixtures thereof, and has a decisive influence on the continuity of the processes within the spinning preparation.
  • the fiber material delivered in bales is removed from the bales by removing fiber flakes and transferred to a pneumatic transport system.
  • the pneumatic transport system brings the fiber flakes through pipes to the following cleaning machines.
  • the Abtragarm is kept adjustable in today's usual bale openers on Abtragturm.
  • the height adjustment is usually done via chain or belt drives, where the Abtragarm is raised or lowered.
  • To determine the position the Abtragarms relative to the surface of the fiber bales are provided on Abtragarm sensors.
  • the CH 686 188 A5 a Abtragarm with a chain drive for height adjustment.
  • the Abtragarm is suspended via a rope and pulleys on a counterweight being adjusted with a lifting motor via a chain drive the Abtragarm in its height.
  • CH 657 386 A discloses a bale opener, which moves the Abtragarm circular over the fiber bales to be opened.
  • the Abtragarm is moved in height over four arranged at the corners threaded rods.
  • the threaded rods are connected via a gear to ensure a synchronous movement of the threaded rods.
  • the WO 2009/062325 A1 discloses a bale opener with a mobile excavation tower and a removal arm attached thereto.
  • means for measuring a removal rate are provided.
  • the contact force of the Abtragarmes is determined in the bearing on the Abtragturm.
  • the object of the invention is to provide a bale opener with a Abtragarm, which allows easy controllable height adjustment and positioning of the Abtragarms.
  • the bale opener for removing fiber flakes from fiber bales comprises an ablation tower arranged on a chassis or bogie and a removal arm, the removal arm being held vertically adjustable in a guide on the ablation tower.
  • a hoist is provided, the hoist is attached to the Abtragarm and the Abtragturm and the hoist, at least having a load cell.
  • the Abtragarm is attached via the hoist on the load cell freely suspended or mounted on the load cell free-standing.
  • the known from the prior art types of hoists include a connection with the Abtragturm and are usually fixed to the Abtragarm fixed.
  • a hoist can also be relieved by the use of energy storage or counterweights.
  • Abtragarme contain the Abtragorgan, usually one or more Abtragwalzen with the associated drive units, which leads to a total weight of Abtragarms of over 500 kg even for smaller systems.
  • Hoists such as chain or belt drives, threaded spindle drives or rack and pinion drives have one or more attachment points on the removal tower and on the removal arm.
  • One or more load cells are inserted at these attachment points, so that the attachment of the hoist to the discharge tower via the load cells. It is irrelevant where in a hoist the load cells are provided as long as at least a part of the lifting mechanism to be moved by the weight of the Abtragarms is detected by the load cells.
  • the load cell is arranged in the hoist such that only a single load cell is necessary.
  • the load cell is to be integrated into the attachment of the hoist on the Abtragarm or in the Abtragturm. This results in an attachment of the hoist on Abtragturm or the Abtragarm a load cell, the load cell forms the connecting element between the hoist and the attachment point.
  • the load cell is also assigned to the hoist in this case and is not part of the Abtragarms or the Abtragturms.
  • load cells different types of so-called load cells can be used.
  • force sensors in which the force acts on a resilient spring body and deforms it.
  • the deformation of the spring body is converted via strain gauges, whose electrical resistance changes with the strain, in the change of an electrical voltage.
  • a measuring amplifier registers the electrical voltage and thus the strain change. This can be converted into a force reading due to the elastic properties of the spring body.
  • spring body bending beam Ringtorsionsfedern or other types are used.
  • piezoceramic elements are used.
  • microscopic dipoles form within the unit cells of the piezocrystal.
  • the summation over the associated electric field in all unit cells of the crystal leads to a macroscopically measurable electrical voltage, which can be converted into a force measurement.
  • Load cells are known from the prior art and are now widely used in force and weight measurement.
  • a load cell By using a load cell, it is possible to move the ablation tower with a certain pressure over the surface of the fiber bales.
  • a bearing force of the Abtragarms on the fiber bales can be determined.
  • the Abtragorgan located in the Abtragarm is lowered onto the surface of the fiber bales until a certain relief on the load cell is detected.
  • the relief corresponds to the bearing force with which the Abtragorgan located in Abtragarm is pressed onto the surface of the fiber bales.
  • the pressure with which the Abtragorgan is pressed onto the fiber bales, the nature and the operating speed of the Abtragorgans and the driving speed of the Abtragturms with which the Abtragarm is guided across the fiber bales away determine essentially the Abtragsmenge.
  • the bale opener can be influenced. Since the fiber bales are not removed evenly by the removal process, there are height differences between the individual fiber bales or within fiber bales. If the level of a fiber ball surface increases, the bearing force also increases. This is going through the load cell registered as an increased discharge and the controller can respond by a corresponding lifting of the Abtragarmes.
  • the Abtragarm is therefore in his leadership on Abtragturm hold such that all lateral forces and tilting moments resulting from the cantilevered arrangement of the Abtragarms be taken by this guide.
  • the leadership of the Abtragarms in the ablation tower is designed such that the hoist is loaded only with forces in the direction of movement of the Abtragarms relative to the ablation tower.
  • the guide may be formed, for example, by guide rails mounted in the ablation tower and guide rollers provided in the removal arm.
  • the hoist consists of a chain hoist
  • a guide of the Abtragarms was also previously necessary because due to the design, the chain itself could not absorb any transverse forces.
  • the chain leading Umlenkungsrad is attached via a load cell on Abtragturm.
  • a load cell in the attachment of the chain on the Abtragarm or in the chain guide itself.
  • the hoist can also be stored on power outlets.
  • the Abtragarm on the hoist on the load cell free hanging or fixed free standing on the load cell. Since only forces in a certain direction can be measured by the load cell, it is advantageous to provide a self-supporting construction. As a result, the connection of the load cell is free of transverse forces which would falsify the measurement results.
  • the hoist is designed as a ball screw.
  • Ball screws have the advantage over threaded spindle drives that a lower drive power is required by a point contact of the balls results in a more precise positioning.
  • the ball screw can be adjusted almost free of play and therefore allows an exact execution of smallest movements of the Abtragarmes in the direction of the longitudinal axis of the lifting spindle.
  • the Abtragarm is connected via a recirculating ball nut with the lifting spindle. This results from the combination of the ball nut with the lifting spindle a ball screw. Between the lifting spindle and the nut, balls that move axially as they move rotate in the grooves. A return channel in the recirculating ball nut moves the balls back to close the circuit in which the balls circulate.
  • the fastening of the lifting spindle via a load cell on the ablation tower is provided only at an upper end of the lifting spindle and the lifting spindle is not held or guided at a lower end in the ablation tower.
  • This type of attachment of the lifting spindle which equates to hanging, results in a further reduction of the friction forces within the ball screw.
  • a clamping of the lifting spindle by an upper and lower mounting can lead to inaccurate movements of the ball nut due to temperature differences or voltages occurring within the lifting spindle.
  • the lifting spindle is rotatably held in the load cell in Abtragturm and provided the ball nut with a drive.
  • the ball nut which creates a connection between the Abtragarm and the lifting spindle is rotated by a drive in rotation and causes a movement of the Abtragarms in the direction of the longitudinal axis of the lifting spindle.
  • FIG. 1 and FIG. 2 show in a schematic representation of a bale opener 1 for removing fiber flakes of fiber bales.
  • FIG. 1 shows the bale opener 1 in a plan view and FIG. 2 in a view.
  • the bale opener 1 consists essentially of an ablation tower 3 and a Abtragarm 5.
  • the Abtragarm 5 is attached to the Abtragturm 3 on one side and freely cantilevered over the fiber bale 2.
  • the Abtragturm 3 is equipped with a chassis 4. With the help of the chassis 4, the ablation tower 3 is moved on rails along the fiber bale 2. As a result of this movement 13, the removal arm 5 attached to the removal tower 3 is guided over the surface of the fiber bales 2.
  • a Abtragorgan 15 is arranged.
  • the Abtragorgan 15 takes from the fiber bale 2 fiber flakes 16.
  • the fiber flakes 16 are brought by the Abtragarm 5 and the Abtragturm 3 and to a pneumatic fiber flake transport system 17.
  • the fiber flake transport system 17 and thus also the transport path from the removal roller 15 to the fiber flake transport system 17 are under a certain negative pressure, which is used for pneumatic conveying of the fiber flakes 16 from the ablation member 15 by the fiber fluff transport system 17.
  • the attachment of Abtragarms 5 on Abtragturm 3 is made adjustable in height, so that the fiber bales 2 can be removed continuously.
  • the movement 14 of the ablation tower 5 serves to ensure a uniform removal of the fiber flakes 16 from the surface of the fiber bales 2.
  • FIG. 3 shows a schematic view of a first embodiment in a sectional view AA FIG. 2 , Based on FIG. 3
  • the principle of weight and force measurement should be shown.
  • the representation of the individual components and their arrangement are exemplary.
  • the Abtragarm 5 is located with the Abtragorgan 15th in the illustration shown on the fiber bale 2 and is thus in ablation position.
  • the Abtragturm 3 is only partially shown and rests on a chassis 4, by means of which he is guided past the fiber bale 2.
  • the Abtragarm 5 is freely cantilever-held by a guide 7 in the Abtragturm 3 adjustable in height.
  • the guide 7 is designed such that the Abtragarm 5 can perform a vertical movement 14.
  • the hoist 6 for movement 14 of the Abtragarms 5 is designed as a chain drive. Attached to Abtragarm 5 is a chain 8 which is guided via a sprocket 9 to the chain drive.
  • the sprocket 9 is mounted on a bearing 11 in the ablation tower 3. Between the bearing 11 and the sprocket 9, a load cell 10 is provided. With the help of the load cell 10, the hanging on the chain 8 weight of the Abtragarms 5 is measured.
  • the same or similar construction is also possible with a belt drive.
  • FIG. 4 shows a schematic view of a second embodiment in a sectional view AA after FIG. 2 ,
  • the Abtragarm 5 lies with the Abtragorgan 15 in the illustration shown on the fiber bale 2 and is thus in Abtrag ein.
  • the Abtragturm 3 is only partially shown and rests on a chassis 4, by means of which he is guided past the fiber bale 2.
  • the Abtragarm 5 is cantilevered on Abtragturm 3 held on the guide 7.
  • the guide 7 is designed such that the Abtragarm 5 can perform a vertical movement 14.
  • the lifting spindle 18 which is encompassed by a ball nut 19.
  • the ball nut 19 is rotatably held with its housing on the Abtragarm 5 in the attachment 12.
  • the ball nut 19 is connected to a drive 5 mounted in the Abtragarm. By the drive, the ball nut 19 is rotated, which leads depending on the direction of rotation to a lifting respectively lowering the Abtragarms 5.
  • the guide 7 holds the Abtragarm 5 on a predetermined path, whereby the ball nut 19 along with the Abtragarm 5 of the lifting spindle 18 along and thus performs the vertical movement 14.
  • the lifting spindle 18 is fixed with its upper end in a rotationally fixed manner to a load cell 10, the load cell 10 in turn being held on the removal tower 3.
  • the lifting spindle 18 is suspended in the load cell 10, so that no lower securing or attachment of the lifting spindle 18 is necessary.

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

Claims (7)

  1. Ouvreuse de balles (1) destinée à enlever des flocons de fibres de balles de fibres (2) comprenant une tour d'enlèvement (3) disposée sur un mécanisme de roulement (4) ou une plate-forme tournante et un bras d'enlèvement (5), le bras d'enlèvement (5) étant monté de manière réglable en hauteur dans un guide (7) disposé sur la tour d'enlèvement (3), caractérisé en ce qu'un mécanisme de levage (6) est prévu pour régler en hauteur le bras d'enlèvement (5), le mécanisme de levage (6) étant fixé sur le bras d'enlèvement (5) et sur la tour d'enlèvement (3) et le mécanisme de levage comportant au moins une boîte dynamométrique (10), le bras d'enlèvement (5) étant fixé en suspension à la boîte dynamométrique (10) par l'intermédiaire du mécanisme de levage (6) ou de façon détachée sur la boîte dynamométrique (10).
  2. Ouvreuse de balles (1) selon la revendication 1, caractérisée en ce que le mécanisme de levage (6) est un entraînement à chaîne ou à courroie.
  3. Ouvreuse de balles (1) selon la revendication 1, caractérisée en ce que le mécanisme de levage (6) comprend une crémaillère.
  4. Ouvreuse de balles (1) selon la revendication 1, caractérisée en ce que le mécanisme de levage (6) est un entraînement à broche filetée.
  5. Ouvreuse de balles (1) selon la revendication 1, caractérisée en ce que le mécanisme de levage (6) est une vis d'entraînement à billes.
  6. Ouvreuse de balles (1) selon l'une des revendications précédentes, caractérisée en ce que le guide (7) du bras d'enlèvement (5) de la tour d'enlèvement (3) est conçu de telle sorte que le mécanisme de levage (6) est chargé uniquement avec des forces dans une direction de déplacement (14) du bras d'enlèvement (5) par rapport à la tour d'enlèvement (3).
  7. Ouvreuse de balles (1) selon l'une des revendications précédentes, caractérisée en ce qu'une force d'appui du bras d'enlèvement (5) exercée sur les balles de fibres (2) peut être déterminée par le biais de la boîte dynamométrique (10).
EP15002849.6A 2014-10-16 2015-10-06 Ouvreuse de balles Active EP3009539B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01582/14A CH710258A1 (de) 2014-10-16 2014-10-16 Ballenöffner.

Publications (2)

Publication Number Publication Date
EP3009539A1 EP3009539A1 (fr) 2016-04-20
EP3009539B1 true EP3009539B1 (fr) 2017-08-30

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US (1) US9745672B2 (fr)
EP (1) EP3009539B1 (fr)
CN (1) CN105523243B (fr)
CH (1) CH710258A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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CH712367A1 (de) 2016-04-15 2017-10-31 Rieter Ag Maschf Verfahren zur Kalibrierung der Aufliegekraft eines Abtragorgans eines Ballenöffners und Ballenöffner.
DE102017109548A1 (de) * 2016-08-15 2018-02-15 TRüTZSCHLER GMBH & CO. KG Verfahren und Vorrichtung zum Detektieren einer Überlast an einem Ballenöffner
CH713861A1 (de) * 2017-06-08 2018-12-14 Rieter Ag Maschf Produktionssteuerung in einer Putzerei.
US11412671B2 (en) 2017-12-29 2022-08-16 Profile Products L.L.C. Horticultural substrate conditioner
CH714726A1 (de) 2018-03-07 2019-09-13 Rieter Ag Maschf Abtragarm für einen Ballenöffner.
EP3789524A1 (fr) 2019-09-03 2021-03-10 Maschinenfabrik Rieter AG Dispositif d'ouverture de balles
DE102021005285A1 (de) * 2021-10-25 2023-04-27 Hubert Hergeth Portalfräse

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CN105523243A (zh) 2016-04-27
US9745672B2 (en) 2017-08-29
EP3009539A1 (fr) 2016-04-20
CN105523243B (zh) 2019-08-09
CH710258A1 (de) 2016-04-29
US20160108558A1 (en) 2016-04-21

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