EP2890840B1 - Dispositif d'ouverture de balles - Google Patents

Dispositif d'ouverture de balles Download PDF

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Publication number
EP2890840B1
EP2890840B1 EP13779908.6A EP13779908A EP2890840B1 EP 2890840 B1 EP2890840 B1 EP 2890840B1 EP 13779908 A EP13779908 A EP 13779908A EP 2890840 B1 EP2890840 B1 EP 2890840B1
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EP
European Patent Office
Prior art keywords
take
suction hood
roller
unit
fiber
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Active
Application number
EP13779908.6A
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German (de)
English (en)
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EP2890840A1 (fr
Inventor
Alexander Schmid
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
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2890840A1 publication Critical patent/EP2890840A1/fr
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Publication of EP2890840B1 publication Critical patent/EP2890840B1/fr
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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
    • D01G7/06—Details of apparatus or machines
    • D01G7/12—Framework; Casings; Coverings; Grids

Definitions

  • the invention relates to a Abtragorgan a bale opener for removing fiber flakes of fiber bales.
  • the removal member comprises a removal roller, a grate arranged below the removal roller, and a suction hood arranged above the removal roller according to the preamble of the independent claim. In the exhaust hood false air openings are provided.
  • Abtragorgane be used in so-called Ballenabtragmaschinen or Baleöffnern to solve fibers or fibrils of pressed fiber bales out.
  • the removal organ is moved across the fiber bales.
  • Bale openers are also known from the prior art in which the fiber bales are moved past a stationary removal member.
  • the bale stripping machine is at the beginning of processing lines in a spinning mill preparation (processing plant) for the processing of fiber material, such as cotton or synthetic fibers or their mixtures, and has a decisive influence on the continuity of the processes within the spinning mill 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 Abtragorgan is attached to a movable Abtragturm height adjustable.
  • the removal member comprises one or more removal rollers with teeth mounted on the surface of a mounted below the removal roller retaining element and a suction hood.
  • the teeth engage in the fiber bales and tear or pluck due to the rotation of the discharge roller fibers respectively fiber flakes out of the fiber bale out.
  • the torn-out fiber flakes are taken over by the suction hood connected to a vacuum source from the removal roller and fed to the transport system.
  • Normally a grate is provided between the removal roller and the fiber bales. The teeth of the removal roller reach through the grate.
  • the rust serves as a retaining element for the fiber bales. Due to the grate elements, which rest on the surface of the fiber bales, it is prevented that too large or irregular fiber flakes are torn out of the fiber bale by the teeth of the removal roller.
  • the EP 0 456 697 a removal member with two removal rollers and a suction hood arranged above the removal.
  • the suction hood is shaped so that the greatest height of the suction hood is located above the center of the fiber bales to be removed. This is intended to optimize a cross-sectional constriction of the exhaust hood and a reduction of the suction power can be achieved.
  • a disadvantage of the disclosed embodiment of the suction hood is that different flow velocities are generated at different points along the removal rollers, which can lead to an uneven suction of the fiber flocks.
  • a Abtragorgan which has a suction hood with a baffle.
  • the suction of fiber flakes from the area on the ablation tower facing side of the fiber bales to be improved.
  • a disadvantage of the disclosed construction of the suction hood is not the flow correspondingly shaped top cover of the suction hood.
  • the DE 37 22 317 discloses pivotable guide walls instead of the lateral pressure rollers. According to the direction of travel, the guide walls can be lowered onto the surface of the fiber bales.
  • the guide walls fulfill in the lowered position the function of a surface of the fiber bales smoothing element.
  • the object of the invention is to provide a Abtragorgan which allows a uniform removal of fiber flocks from the fiber bales and over the entire length of the Abtragwalze continuous removal of the fiber flakes.
  • a novel Abtragorgan is proposed with a removal roller and an over the removal roller arranged suction hood and arranged below the removal roller grate.
  • the removal roller is fitted over its longitudinal axis with teeth, which reach through the rust.
  • the Abtragorgan is stored on one side on a Abtragturm.
  • the suction hood is formed from a first part which is pulled over the removal roller and from a second part provided in the direction of the axis with an arcuate boundary surface. In the first part of the extraction hood, the lateral boundary surfaces, which lie opposite the axis of the removal roller, approach one another with increasing distance from the axis.
  • These lateral boundary surfaces of the suction hood have a first angle of inclination ⁇ on the side of the suction hood facing the ablation tower and a second angle of inclination ⁇ on the side of the suction hood facing away from the ablation tower.
  • the second part of the suction hood is arranged between the first part and a transport channel arranged in the removal tower.
  • the lateral boundary surface of the first part of the suction hood is provided on the side facing away from the ablation tower with false air openings.
  • the suction hood arranged above the removal roller is connected to a transport channel which is arranged inside the removal tower.
  • This transport channel in turn is connected to a vacuum source, for example a fan.
  • a vacuum source for example a fan.
  • the lateral boundary surfaces of the suction hood are arranged over the removal roller to near the surface of the fiber bales. Due to the irregular surface of the fiber bales and the resulting caused, over the longitudinal axis of the Abtragwalze seen, non-uniform flow conditions of the sucked ambient air, a discontinuous removal of fiber flocks takes place.
  • the inclination of the transverse to the axis of the discharge roller arranged boundary surfaces of the suction hood leads to promote a uniformity of the vacuum conditions over the length of the discharge roller.
  • the arcuate design of the connection of suction hood and transport channel serves to optimize the flow conditions within the suction hood.
  • the arrangement of false air openings in the boundary surface of the suction hood on the side facing away from the ablation tower causes the flow of the sucked air to match the geometry of the suction hood.
  • the false air openings are arranged at the narrowest point of the arcuate connection.
  • the air flowing in through the false air openings flows along this curved surface and causes a deflection of the air flowing along the removal roller into the suction hood.
  • This has the effect of giving a uniform flow within the suction hood and an increase in the amount of flock in the ratio to the sucked air quantity is possible.
  • An accumulation of removed fiber flakes in the suction hood is prevented by a uniform outflow of the fiber flakes and the transfer of the fiber flakes from the removal roller into the suction air stream is improved.
  • the false air openings can be formed in various shapes, for example, through slots whose arrangement can be oblique, vertical or horizontal. Also, a plurality of round holes is conceivable.
  • the false air openings are made adjustable in their cross section. The adjustability of the cross section is possible by attaching a slider or cover plate, which covers a part of the false air openings and is slidably attached to the suction. Also, a construction in the form of a diaphragm is conceivable which allows a concentric variation of the open cross section of a round opening.
  • the geometric design of the false air openings can lead from a simple opening in the exhaust hood to the attachment of beads or inlet nozzles.
  • false air openings are also provided in the Abtragturm facing boundary surface of the suction hood.
  • Construction and geometric design of the false air openings on the ablation tower facing boundary surface of the suction hood can be designed differently or symmetrically to the false air openings on the ablation tower facing away from the boundary of the suction hood. Due to the two-sided arrangement of false air openings, the upper the removal roller, respectively the grate arranged underneath, to be sucked air quantity can be reduced without reducing the total air flow. A reduction in the total air flow had a lower flow through the suction hood result and would thus reduce the performance of Abtragorgans.
  • the first part of the suction hood is arranged symmetrically in the direction of the axis of the removal roller.
  • a uniform pressure distribution in the exhaust hood over the Abtragwalze achieved, resulting in a uniform decrease of the fiber flakes from the removal roller.
  • the fiber bales are removed uniformly over the entire length of the removal roller.
  • the one-sided discharge of the sucked air in the direction of the ablation tower has the consequence that the air flowing in on the side of the ablation tower via the removal roller air has to travel the shorter way to the transport channel as the on the side facing away from the Abtragturm the exhaust roller air flowing.
  • the flow and pressure conditions in the suction hood are also influenced by the geometric design of the transverse to the axis of the discharge roller arranged lateral boundary surfaces of the first part of the suction hood.
  • the boundary surfaces approach each other with increasing distance from the axis of the removal roller in an advantageous embodiment with an inclination angle in a range of 20 ° to 40 °.
  • the inclination angles of the boundary surfaces may be different, but are preferably made the same size. Particularly preferred and effective, an angle of inclination of 30 ° has been found for both lateral boundary surfaces.
  • the measures for influencing the flow such as false air openings and geometric design of the suction hood serve the purpose of achieving a uniform pressure distribution over the entire length of the removal roller and the air speed immediately above the removal roller over its length tointensivemässig.
  • the arranged below the Abtragwalze rust serves to hold down the fiber flakes on the surface of the fiber bales to allow a uniform removal by the removal roller.
  • the rust also prevents excessive fiber flakes from being torn out of the fiber bales.
  • the removal roller is carried away by the driving operation of the ablation tower on the stationary fiber bales.
  • the grate is advantageously extended beyond the suction hood for guiding the fiber flakes to the removal roller by baffles.
  • the extension of the grate takes over the function of a guide element, which leads to a smoothing of the surface of the fiber bales and can also be formed of individual rods.
  • the guide element is formed by closed baffles.
  • the baffles are inclined at an angle of 5 ° to 30 ° upwards.
  • the fiber flakes are pressed on the surface of the fiber bales using the baffles down and performed for the removal roller to a uniform level.
  • the baffles are made to extend transversely to the axis of the removal roller between 200 mm and 500 mm in their extent, no further means for uniforming the surface of the fiber bales are necessary. It can be dispensed with today often used Anpressstangen or pressure rollers, which are arranged next to the removal roller. This also increases the reliability of the Abtragorgans.
  • a resting on the surface of the fiber bales lower edge of the grate is closer to the surface of the fiber bales arranged as the subsequent to the grate baffle.
  • the baffles may be provided as an inclined plane, or have an arcuate construction.
  • An arcuate construction is to be connected tangentially to the grate.
  • the intended angle of inclination of the baffle is determined in an arcuate construction by the line connecting the horizontal and a connection point of the baffle to the grid with the outer end of the baffle.
  • the baffles can be formed by flat sheets, which are bent several times to the top, while the nearest to the grid area of the baffle with the appropriate angle of inclination is decisive.
  • the baffles are fixed in place on Abtragorgan.
  • the guide plates are connected to the suction hood in such a way that no false air enters the suction hood between the suction hood and the guide plate.
  • the suction power can be increased via the removal roller and the flow-influencing effect of the false air openings is not disturbed by leaks along the removal roller.
  • FIG. 1 shows a bale opener in a schematic representation.
  • the bale opener consists essentially of an ablation tower 8 and a Abtragorgan 1.
  • the Abtragorgan 1 is attached to the Abtragturm 8 on one side and freely cantilevered over the fiber bale 2.
  • the removal tower 8 is equipped with a chassis 20. With the aid of the chassis 20, the removal tower 8 is moved on rails 21 along the fiber bale 2. As a result of this movement, the removal member 1 attached to the removal tower 8 is guided over the surface of the fiber bales 2.
  • the attachment of the Abtragorgans 1 on the ablation tower 8 is made adjustable in height, so that the fiber bales 2 can be removed continuously.
  • a removal roller 3 is arranged with an axis 7.
  • the removal roller 3 takes from the fiber bale 2 fiber flakes.
  • the fiber flakes are removed via a suction hood 4 by means of negative pressure from the removal roller 3 and guided to the removal tower 8.
  • a transport channel 12 is arranged, which takes over the fiber flakes of the suction hood 4 and a pneumatic fiber flake transport system 22 supplies.
  • the transport channel 12 and thus also the suction hood 4 are under a certain negative pressure, which is used for pneumatic conveying of the fiber flakes to the transport channel.
  • FIG. 2 shows a schematic representation of a longitudinal section of a Abtragorgans 1 along the axis 7 of the removal roller 3.
  • the grate 5 is arranged below the removal roller 3.
  • the teeth 6 of the removal roller 3 reach through the grate 5.
  • the suction hood 4 is arranged above the removal roller 3.
  • the suction hood 4 is formed from a first part 10 and a second part 11.
  • the first part 10 of the suction hood 4 is placed directly over the removal roller 3 and extends with all lateral boundary surfaces 14, 15 to the grate 5.
  • the Abtragturm facing boundary surface 14th of the first part 10 of the suction hood 4 is arranged obliquely above the removal roller 3 at an angle of inclination ⁇ to the axis 7 of the removal roller 3.
  • the ablation tower facing away from the boundary surface 15 of the first part 10 of the suction hood 4 is inclined above the Abtragwalze 3 with an inclination angle ⁇ to the axis 7 of the discharge roller 3. With increasing distance from the axis 7 of the removal roller 3, the boundary surfaces 14, 15 approach each other.
  • the arrangement shown is symmetrical in that the inclination angle ⁇ of the boundary surface 14 is the same size as the inclination angle ⁇ of the boundary surface 15.
  • the first part 10 of the suction hood 4 thereby has the shape of an upwardly tapering funnel.
  • false air openings 9 are provided in the ablation tower facing away from the boundary surface 15 false air openings 9 are provided.
  • the false air openings 9 are arranged so that in the suction hood 4, a flow of the sucked through the false air openings 9 air along the boundary surface 15 results.
  • Falsch Kunststoffö Anlagentechnisch 16 are also provided in the ablation tower facing boundary surface 14 Falsch Kunststoffö Anlagentechnisch 16 are also provided.
  • the false-air openings 16 are arranged so that a flow of the air sucked in through the false-air openings 9 along the boundary surface 14 results in the suction hood 4.
  • the second part 11 of the suction hood 4 is arranged.
  • the second part 11 of the suction hood 4 is provided with an arcuate upper boundary surface 30. This serves the flow line, the direction of flow is indicated by the arrow 31, the extracted from the removal roller fiber flock flow to the transport channel in the ablation tower.
  • the voltage applied to the boundary surface 15 flow of the sucked air through false air openings 9 is through the arcuate boundary surface 30 in the direction 31 deflected to the outlet 32 of the suction hood.
  • the steering of the flow within the suction hood 4 leads to a uniform extraction of the fiber flakes over the entire length of the removal roller. 3
  • Fig. 3 shows a schematic representation of a cross section of a Abtragorgans 1 at the point A after FIG. 2 ,
  • the suction hood 4, consisting of the first part 10 and the second part 11 is guided laterally over the removal roller 3 to the arranged below the Abtragwalze 3 grate 5.
  • baffles 13 are arranged on both sides of the grate. The baffles 13 are arranged with respect to the horizontal at an angle ⁇ obliquely upwards.
  • FIG. 4 shows a schematic representation of a view of Abtragorgans 1 from direction B to FIG. 2 ,
  • the boundary surface 15 of the first part 10 of the suction 4 extends between the boundary surface 30 of the second part 11 of the suction hood 4 and the and the grate 5.
  • false air openings 9 are provided in the boundary surface 15 .
  • a plurality of slots 9 are arranged by way of example. However, there are also round holes, horizontal slots, other geometric shapes such as beads conceivable.
  • the slots 9 are partially closed by a cover 33. By moving the cover 33, the false air openings 9 can be enlarged or reduced and thus adjusted.
  • the position of the slots 9 relative to the axis 7 of the removal roller is chosen arbitrarily and is adapted to the flow conditions.
  • the illustrated Arrangement of the false air openings 9 represents a possible variant. Also, the adjustment of the cross section of the false air openings 9 via an actuator can be done.

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

Claims (15)

  1. Élément d'enlèvement (1), destiné à enlever des flocons de fibres de balles de fibres (2), qui comprend un rouleau d'enlèvement (3) qui est pourvu d'un axe (7) et de dents (6), une hotte d'aspiration (4) qui est disposée au-dessus du rouleau d'enlèvement (3) et une grille (5) qui est disposée au-dessous du rouleau d'enlèvement (3), à travers laquelle les dents (6) du roulement d'enlèvement (3) s'engagent et par le biais de laquelle l'élément d'enlèvement (1) est monté sur un côté sur une tour d'enlèvement (8), la hotte d'aspiration (4) étant formée d'une première partie (10) qui est placée sur le rouleau d'enlèvement (3) et dans laquelle les surfaces de délimitation latérales (14, 15), opposées transversalement par rapport à l'axe (7) du rouleau d'enlèvement (3), se rapprochent, à mesure que la distance à l'axe (7) augmente, avec un premier angle d'inclinaison (α) du côté de la hotte d'aspiration (4) qui est dirigé vers la tour d'enlèvement et un second angle d'inclinaison (ß) du côté de la hotte d'aspiration (4) qui est opposé à la tour d'enlèvement, et d'une seconde partie (11) qui est pourvue d'une surface de limitation incurvée (30) et qui est disposée entre la première partie (10) et un conduit de transport (12) disposé dans la tour d'enlèvement, caractérisé en ce que la surface de délimitation latérale (15) de la première partie (10) de la hotte d'aspiration (4) est pourvue, du côté opposé à la tour d'enlèvement (8) d'orifices d'air parasite (9).
  2. Élément d'enlèvement (1) selon la revendication 1, caractérisé en ce que la surface de délimitation latérale (14) de la première partie (10) de la hotte d'aspiration (4) est pourvue, du côté dirigé vers la tour d'enlèvement (8), d'orifices d'air parasite (16).
  3. Élément d'enlèvement (1) selon la revendication 1 ou 2, caractérisé en ce que les orifices d'air parasite (9, 16) ont une section transversale réglables.
  4. Élément d'enlèvement (1) selon l'une des revendications précédentes, caractérisé en ce que la première partie (10) de la hotte d'aspiration (4) est disposée symétriquement par rapport à la direction de l'axe (7) du rouleau d'enlèvement (3).
  5. Élément (1) selon l'une des revendications précédentes, caractérisé en ce que la première partie (10) de la hotte d'aspiration (4) est disposée symétriquement par rapport à la direction transversale à l'axe (7) du rouleau d'enlèvement (3).
  6. Élément d'enlèvement (1) selon l'une des revendications précédentes, caractérisé en ce que le premier angle d'inclinaison (α) et le second angle d'inclinaison (ß) est compris entre 25° et 40°.
  7. Élément d'enlèvement (1) selon l'une des revendications précédentes, caractérisé en ce que le premier angle d'inclinaison (α) et le second angle d'inclinaison (ß) sont égaux.
  8. Élément d'enlèvement (1) selon l'une des revendications précédentes, caractérisé en ce que le premier angle d'inclinaison (α) et le second angle d'inclinaison (ß) sont de 30°.
  9. Élément d'enlèvement (1) selon l'une des revendications précédentes, caractérisé en ce que les orifices d'air parasite (9, 16) ont une section transversale réglable.
  10. Élément d'enlèvement (1), destiné à enlever des flocons de fibres de balles de fibres (2), qui comprend un rouleau d'enlèvement (3) qui est pourvu d'un axe (7) et de dents (6), une hotte d'aspiration (4) qui est disposée au-dessus du rouleau d'enlèvement (3) et une grille (5) qui est disposée au-dessous du rouleau d'enlèvement (3), à travers laquelle les dents (6) du roulement d'enlèvement (3) s'engagent et par le biais de laquelle l'élément d'enlèvement (1) est monté sur un côté sur une tour d'enlèvement (8), caractérisé en ce que la grille (5) est prolongée, au-delà de la hotte d'aspiration (4), par des tôles de guidage (13) afin
  11. Élément d'enlèvement (1) selon la revendication 10, caractérisé en ce que les tôles de guidage (13) sont inclinées vers le haut avec un angle (γ) de 5° à 30°.
  12. Élément d'enlèvement (1) selon l'une des revendications 10 ou 11, caractérisé en ce que les tôles de guidage (13) ont une dimension, transversalement à l'axe (7) du rouleau d'enlèvement (3), comprise entre 200 et 400 mm.
  13. Élément d'enlèvement (1) selon l'une des revendications 10 à 12, caractérisé en ce que les tôles de guidage (13) sont fixées de façon immobile à l'élément d'enlèvement (1).
  14. Élément d'enlèvement (1) selon l'une des revendications 10 à 13, caractérisé en ce que les tôles de guidage (13) sont reliées à la hotte d'aspiration (4) de telle sorte que de l'air parasite ne passe pas entre la hotte d'aspiration (4) et la tôle de guidage (13) pour entrer dans la hotte d'aspiration (4).
  15. Élément d'enlèvement (1) selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un seul rouleau d'enlèvement (3).
EP13779908.6A 2012-08-29 2013-08-16 Dispositif d'ouverture de balles Active EP2890840B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01500/12A CH706899A1 (de) 2012-08-29 2012-08-29 Abtragorgan zum Abtragen von Faserflocken von Faserballen.
PCT/IB2013/001792 WO2014033518A1 (fr) 2012-08-29 2013-08-16 Dispositif d'ouverture de balles

Publications (2)

Publication Number Publication Date
EP2890840A1 EP2890840A1 (fr) 2015-07-08
EP2890840B1 true EP2890840B1 (fr) 2016-10-05

Family

ID=49448206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13779908.6A Active EP2890840B1 (fr) 2012-08-29 2013-08-16 Dispositif d'ouverture de balles

Country Status (4)

Country Link
EP (1) EP2890840B1 (fr)
CN (1) CN104583476B (fr)
CH (1) CH706899A1 (fr)
WO (1) WO2014033518A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105297185B (zh) * 2015-11-20 2019-04-16 四川北方硝化棉股份有限公司 一种开棉高效的精制棉开棉机
DE102017109520A1 (de) * 2016-08-15 2018-02-15 TRüTZSCHLER GMBH & CO. KG Ballenöffner
EP3789524A1 (fr) * 2019-09-03 2021-03-10 Maschinenfabrik Rieter AG Dispositif d'ouverture de balles

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB764137A (en) * 1955-01-17 1956-12-19 Dodd Invest Ltd Improvements relating to fibre conveying flues in fibre opening and like machines
DE3334222C2 (de) * 1983-09-22 1991-05-08 Hergeth Hollingsworth GmbH, 4408 Dülmen Vorrichtung zum Abtragen von Faserballen mittels einer Öffnervorrichtung
JPS6142923Y2 (fr) * 1984-09-05 1986-12-05
JPS6142924Y2 (fr) * 1984-10-17 1986-12-05
DE3504590A1 (de) * 1985-02-11 1986-08-14 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum oeffnen von faserballen
DE3602898A1 (de) * 1986-01-31 1987-08-13 Truetzschler & Co Vorrichtung an einem ballenoeffner fuer faserballen, z.b. baumwoll- und chemiefaserballen o. dgl., zum absaugen von faserflocken
SU1331915A1 (ru) * 1986-02-11 1987-08-23 Пензенский научно-исследовательский экспериментально-конструкторский институт прядильных машин Устройство дл разработки кип волокнистого материала
DE3637580C1 (de) * 1986-11-04 1988-03-17 Schubert & Salzer Maschinen Vorrichtung zum Absaugen von Fasermaterial
DE3722317A1 (de) 1987-07-07 1989-01-26 Hollingsworth Gmbh Vorrichtung zum abtragen von faseranhaeufungen, z.b. faserballen aus spinngut
DE3903239C1 (fr) * 1989-02-03 1990-07-05 Hergeth Hollingsworth Gmbh, 4408 Duelmen, De
DE102005013076A1 (de) * 2005-03-18 2006-10-05 TRüTZSCHLER GMBH & CO. KG Vorrichtung zum Abtragen des Fasergutes von Textifaserballen aus Spinngut, z. B. Baumwolle, Chemiefasern und dgl.
CN201136916Y (zh) * 2007-10-25 2008-10-22 张祺田 圆式抓棉机的吸棉喇叭管改良配置
CN201619717U (zh) * 2010-03-14 2010-11-03 吴玄龙 开包机

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Publication number Publication date
CH706899A1 (de) 2014-03-14
EP2890840A1 (fr) 2015-07-08
WO2014033518A1 (fr) 2014-03-06
CN104583476B (zh) 2017-09-15
CN104583476A (zh) 2015-04-29

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