EP2336405A1 - Dispositif de nettoyage pour fibres en bourre - Google Patents

Dispositif de nettoyage pour fibres en bourre Download PDF

Info

Publication number: EP2336405A1
Authority: EP; European Patent Office
Prior art keywords: roller; cleaning device; turning element; fiber; flakes
Prior art date: 2009-12-17
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.): Granted

Application number

EP10015111A

Other languages

German (de)

English (en)

Other versions

EP2336405B1 (fr

Inventor

Dyrk Saaro

Bruno Widmer

Matthias Hasler

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.)

2009-12-17

Filing date

2010-11-30

Publication date

2011-06-22

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43639108&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2336405(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2010-11-30 Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG

2011-06-22 Publication of EP2336405A1 publication Critical patent/EP2336405A1/fr

2012-05-23 Application granted granted Critical

2012-05-23 Publication of EP2336405B1 publication Critical patent/EP2336405B1/fr

Status Not-in-force legal-status Critical Current

2030-11-30 Anticipated expiration legal-status Critical

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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
- 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

Definitions

the invention relates to a cleaning device for transported in a conveying air flow fiber flakes, with a lying, occupied with striking elements roller.
Cleaning devices of this type are known and serve to dissolve the, in a conveying air flow, supplied fiber flakes and remove impurities.
the cleaning devices have a lying with Schlagmaschinen occupied roller which is rotatably mounted in a housing.
the fiber flakes are fed with the conveying air via an inlet opening at an axial end of the roller of the cleaning device.
Below the roller a grate is attached.
the fiber flakes are detected by the equipped with impact elements roller, passed over the grate and transported by transfer chambers gradually to the other axial end of the roller to leave as dissolved and purified fiber flakes through an outlet opening the cleaning device again.
the fiber fluff air stream is transported by means of the oblique to the roll axis Kochleitschn spirally over the roller, whereby the fiber flakes are repeatedly passed over the grate. Also, the flakes are beaten to some extent by the impact on the walls delimiting the cleaning device, whereby impurities and dust are largely separated from the fiber material.
EP 0 379 726 and EP 0 447 966 describe such a cleaning device.
the disclosed cleaning devices are identical in their basic structure. They include a horizontal, populated with striking elements roller under the underside bar grates are arranged. Over the top of the roll, an inlet opening is provided at one end of the roll and an outlet opening at the other end of the roll. Between the inlet and the Auslassöfnung over the top of the roller transfer chambers are arranged, which move the flow in the direction of the axis of the roller.
EP 0 381 860 describes a cleaning device with the use of guide plates as a separation of the individual transfer chambers above the roller, whereby the resolution of the flakes can be improved.
EP 0 379 726 describes a cleaning device in which the transfer chambers are provided with a dust and air-permeable cover. Thereby, the deposition of light, dusty dirt particles can be improved from the flock stream.
EP 0 447 966 describes a cleaning device in which in the direction of rotation of the roller on the transfer chambers, a dust- and air-permeable wall follows. This should also improve the separation of fine, dusty impurities.
the proposed cleaning devices have the disadvantage that the movement of the individual floc itself is not affected within the cleaning device. Improvements in the management of fiber fluff air flow and dust separation from the fiber fluff air flow have been proposed. However, these measures only have a minor influence on the cleaning of the individual flake. This is especially noticeable with larger flow rates. The entrained conveying air in the fiber fluff air flow obstructs the mechanical cleaning process of the individual flake.
a cleaning device for transported in a conveying air flow fiber flakes, with a lying, occupied with impact elements roll, on the upper side at one end of the roller an inlet opening and at the other end an outlet opening for the flow are arranged to provide.
Below the Roller is a grate and above the roller transfer chambers are provided between the inlet opening and the outlet opening, wherein at least one of the transfer chambers is equipped with a turning element.
the cleaning device is fed via the inlet opening a fiber fluff air stream.
the fiber fluff air stream consists of unpurified or pre-cleaned fiber flakes, which are conveyed with air as a transport medium.
the inlet opening is arranged such that the fiber fluff air stream tangentially meets the one end of a horizontal roller.
the roller is occupied with striking elements.
the impact elements can be of various shapes, for example tines, bolts or double prongs are known from the prior art.
the supplied fiber flakes are detected by the impact elements and guided in the direction of rotation of the roller over a arranged below the roller grate away.
the rust separates coarse dirt particles and impurities.
suitable grates are known from the prior art, for example bar grates or knife grates.
the fiber fluff air flow is guided by the impact elements along the direction of rotation of the roller upwards, where the flakes are partially removed by the centrifugal force the engagement of the striking elements and reach into a first transfer chamber.
the transfer chamber is placed obliquely to the roll axis, so that the flakes, as well as the entire fiber fluff air flow undergoes an offset in the axial direction of the roller. From the transfer chamber, the flakes are beaten to the transfer chamber the following vertical wall of the cleaning device and then in turn detected by the impact elements and again passed over the grate.
the fiber fluff air stream is passed around the roller in a plurality of spiral passages until it leaves the cleaning device through the discharge opening at the end of the roller.
a turning element is provided in at least one of the transfer chambers.
This has the advantage that the fiber flakes are rotated in their position relative to the roll surface. Without the use of a turning element The fiber flakes usually during a circulation always the same position relative to the roll surface. The fiber flakes are trapped in the air flow and are carried by this through the transfer chamber. This uniform movement along the guide plates of the transfer chamber is disturbed by the turning element. The fiber floc strikes the turning element, with the result that the fiber floc rotates around its own axis as it is forced around the turning element by the flow of air. As a result, the fiber flake strikes the vertical wall of the cleaning device following the transfer chamber with a different surface than in the previous handling.
the turning element protrudes into the transfer chamber in such a way that the flocs passed by the transfer chamber at the turning element are turned over. This leads to an improvement of the cleaning effect achieved by the impact on the wall.
the wall on which the flake impinges after leaving the transfer chamber is designed as a screen wall, such as in EP 0 447 966 described.
the turning element due to the turning element, the flake is practically guided over the grate in relation to the previous handling on the back.
the turning element is a disruptive element projecting into the transfer chamber, for example in the form of a sheet, which can be attached to the guide plates of the transfer chamber or else to the outer wall of the cleaning device. It can also be provided per transfer chamber in each case a turning element.
the turning element extends over the entire width of the transfer chamber.
the transfer chamber is thereby reduced in height by the turning element in its course.
the gap between the roller surface and the outer boundary of the transfer chamber becomes smaller at the location of the turning element.
the fiber flakes which, due to the centrifugal force, move along the boundary farthest from the surface of the roll, are forced by the turning element to make a motion perpendicular to the direction of movement.
the turning element can be attached to the lateral guide plates of the transfer chamber, by screwing, welding or another known type of fastening.
the built-in turning element is adjustable within the transfer chamber.
the turning element is fixed in such a way that its position can be adjusted within the transfer chamber.
Suitable fasteners for adjustment are well known from the prior art, for example, a screw in a corresponding slot.
the passage height between the upper wall and the surface of the roller at the installation of the turning element is adjustable. This can be achieved in that the projecting into the transfer chamber part of the turning element in its height or the installation depth of the turning element itself is adjustable. Thereby, the remaining passage height for the fiber fluff air flow between the surface of the roller and the turning element can be adjusted, which leads to a change in the turning effect of the turning element on the fiber flake.
the turning element can be introduced, for example through the wall of the cleaning device more or less in the underlying transfer chamber and fixed in a predetermined position on the wall.
the fiber fluff air stream is driven on its spiral path around the roller of the cleaning device on the one hand by the suction on the outlet side of the cleaning device and on the other hand by the rotating roller itself.
the turning elements cause by the protruding into the transfer chamber a braking of the fiber fluff air stream.
the fiber fluff air flow is slowed down by the fact that the flakes in the upper part of the roll escape the impact elements, which has an effect above all on larger throughput rates.
provided on the roller between the impact elements at least one wind plate.
the wind sheet is applied to the surface of the roll so as to increase the radial distance of the surface to the axis of the roll at a narrow location.
the wind plate can be designed as a simple sheet or in any other geometric shape, for example as a triangle.
a wind plate is designed in a length corresponding to the roller.
the cleaning effect of conventional cleaning devices of the type described above can be significantly improved by a targeted turn of the flakes to be cleaned.
the proposed method for cleaning fiber flakes provides that the fiber flakes are guided with a conveying air flow in a device with a lying, occupied with striking elements roll, taken the fiber flakes of the striking elements in the direction of rotation of the roller and on a bottom of the roller to a grate over transported above the roller existing transfer chambers.
the Studentsleitsch cause a displacement of the flakes in the axial direction of the roller.
the flakes are turned in at least one of the transfer chambers.
FIGS. 1 and 2 show a schematic representation of a cleaning device according to the invention in cross-section and in plan view.
the cleaning device shown comprises a horizontal roller 2, which is rotatably mounted in a housing 1 about a horizontal axis and the surface in the usual manner with striking elements 4 (see FIG. 3 ), z. As percussion pins or tines, is busy.
the roller 2 is rotated in operation by a drive motor, not shown in the arrow direction.
a grate 3 is arranged below the roller 2, a grate 3 is arranged.
the grate 3 can also be designed in several parts.
the top of the housing 1 is covered above the roller 2 with a wall 5, of which a horizontal, middle section and two laterally adjoining the horizontal section, approximately 45 ° inclined side portions are provided.
a wall 5 of which a horizontal, middle section and two laterally adjoining the horizontal section, approximately 45 ° inclined side portions are provided.
an adjacent to the wall 5, substantially vertical dust and air permeable wall is provided as a screen wall 6.
the entire surface of the dust- and air-permeable wall 6 is part of a vacuum chamber, to which a suction line is connected (both not shown).
guide plates 9 are arranged above the top of the roller, which limit the transfer chambers 10 laterally.
FIG. 2 three guide plates 9 are shown, which form two transfer chambers 10.
the guide plates 9 are arranged obliquely to the axis of the roller 2.
the distance between the guide plates 9 determines the width B of the transfer chamber 10.
the passage height H of the transfer chambers 10 is limited by the surface of the roller 2 and the upper wall 5 of the housing 1.
the cleaning device is supplied with the fiber flakes in a fiber fluff air flow through the inlet opening 8. After the entry of the fiber flakes in the cleaning device they are detected by the mounted on the roller 2 impact elements 4 and moved in the direction of rotation of the roller 2.
the fiber fluff air stream with the fiber flakes flows substantially around first around the underside of the rotating roller 2, then through the transfer chamber 10, which is formed by the guide plates 9.
the fiber fluff air flow is further moved in the direction of the axis of the roller 2, to then be guided around the underside of the roller 2 again.
the fiber fluff air stream with the fiber fluff is spirally moved around the roller 2 through the cleaning device and exits through the outlet opening 7, diagonally opposite the outlet opening 8.
the fiber fluff air stream is cycled three times on its spiral path through the cleaning device passed and moved through the two transfer chambers 10 over the entire axial length H of the roller 2.
the fiber flakes are processed by the striking elements 4 and increasingly dissolved, and impurities are separated from the fiber flakes.
the coarser impurities e.g.
Shell parts are deposited through between the grate 3 and collected in the space under the grate 3 and periodically sucked by means of a suction device, not shown. Subsequent to the grate 3, the fiber flakes each fly upwards into the next transfer chamber 10, where they are further loosened and knocked by impact with the upper wall 5 of the housing 1.
a turning element 11 is provided in the course of the transfer chamber 10, whereby the free passage height H between the surface of the roller 2 and the upper wall 5 of the housing 1 is reduced. The fiber flakes are forced by the turning element 11 in a change in direction, whereby their position changes relative to the surface of the roller 2.
the installation as well as the design of the turning element 11 is adjusted to the flow conditions within the cleaning device.
the turning element 11 extends over the entire width B of the transfer chamber 10.
the turning element 11 is mounted so that the fiber flakes are turned so far that they are on the transfer chamber 10 subsequent screen wall 6 in a different position than the previous handling around the roller. 2 incident.
Fine, dust-like impurities which have been separated from the fiber flakes can be separated at most partially by the grate 3, whereby a large part of the dust remains in the fiber fluff air stream.
the air- and dust-permeable wall 6 serves to remove even these fine impurities from To separate fiber pulp flow so that they can not exit at the end of the fiber flakes through the outlet opening 8.
the screen wall 6 is connected to a vacuum source or suction device, not shown, which sucks the dust-laden air through the screen wall 6 therethrough.
FIG. 3 shows a schematic three-dimensional representation of a roll 2 according to the invention.
the illustrated embodiment of the roller 2 comprises in addition to the occupation of the surface of the roller 2 with impact elements 4 and wind sheets 12.
impact elements 4 and wind sheets 12 are applied to the roller 2
rolls 2 without wind sheets 12 can also be used.
a roller 2 without wind plates 12 is occupied by a regular arrangement of the striking elements 4.
the impact elements 4 are formed as double tines and fastened by screws to the roller 2.
the wind sheets 12 extend over the axial length L of the roller 2.
the illustrated wind sheets 12 are formed as a sheet metal angle and fastened with screws.
the wind sheets 12 can be formed only over part of the axial length L of the roller 2, for example in the part of the roller 2, which is not opposite to a turning element 11 in the installed state of the roller 2.
the number of wind sheets 12 may also vary over the circumference of the roll 2.

Landscapes

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

EP20100015111 2009-12-17 2010-11-30 Dispositif de nettoyage pour fibres en bourre Not-in-force EP2336405B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH01941/09A CH702443A1 (de)	2009-12-17	2009-12-17	Reinigungsvorrichtung für Faserflocken.

Publications (2)

Publication Number	Publication Date
EP2336405A1 true EP2336405A1 (fr)	2011-06-22
EP2336405B1 EP2336405B1 (fr)	2012-05-23

Family

ID=43639108

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20100015111 Not-in-force EP2336405B1 (fr)	2009-12-17	2010-11-30	Dispositif de nettoyage pour fibres en bourre

Country Status (3)

Country	Link
EP (1)	EP2336405B1 (fr)
CN (1)	CN102102246B (fr)
CH (1)	CH702443A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE202020107466U1 (de)	2020-12-22	2022-03-25	Trützschler GmbH & Co Kommanditgesellschaft	Vorrichtung an oder in einer Textilmaschine und damit ausgestattete Textilmaschine
DE102020134591A1 (de)	2020-12-22	2022-06-23	Trützschler GmbH & Co Kommanditgesellschaft	Vorrichtung an oder in einer Textilmaschine und damit ausgestattete Textilmaschine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH713995A2 (de) *	2017-07-17	2019-01-31	Rieter Ag Maschf	Reinigungsvorrichtung.
CN107243459B (zh) *	2017-07-31	2023-04-25	农业部南京农业机械化研究所	一种多级籽棉重杂清分装置
CN110528123B (zh) *	2019-08-16	2021-09-14	芜湖迅齐纺织有限公司	一种棉质纤维面料用除杂装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1978036A (en) *	1933-12-08	1934-10-23	Winfred W Windle	Wool opener
CH357307A (de) *	1957-11-29	1961-09-30	Rieter Ag Maschf	Trommel-Öffner und -Reiniger
US3559804A (en) *	1968-10-22	1971-02-02	Fiber Controls Corp	Fiber cleaner
GB2000534A (en) *	1977-06-24	1979-01-10	Platt Saco Lowell Ltd	Apparatus for opening and cleaning fibrous material
EP0379726A1 (fr)	1989-01-26	1990-08-01	Maschinenfabrik Rieter Ag	Machine de nettoyage pour fibres textiles
EP0381860A2 (fr)	1989-01-31	1990-08-16	Maschinenfabrik Rieter Ag	Machine de nettoyage pour fibres textiles
DE3932282A1 (de) *	1989-09-27	1991-04-04	Hollingsworth Gmbh	Vorrichtung zum oeffnen und reinigen von fasergut
EP0447966A1 (fr)	1990-03-23	1991-09-25	Maschinenfabrik Rieter Ag	Machine de nettoyage pour fibres textiles
WO2006047897A1 (fr) *	2004-11-04	2006-05-11	Maschinenfabrik Rieter Ag	Dispositif de nettoyage servant a retirer des amas de fibres

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE361839C (de) *	1918-08-21	1922-10-21	Bohumil Jirotka	Maschine zum OEffnen von Fasern
US2825935A (en) *	1953-02-25	1958-03-11	Gruendler Crusher And Pulveriz	Apparatus for defiberizing bagasse
DE1105772B (de) *	1957-04-29	1961-04-27	Hergeth K G Maschinenfabrik	Stufenreiniger fuer Fasergut
US4229285A (en) *	1978-06-22	1980-10-21	Platt Saco Lowell Limited	Dust removal in an opening and cleaning apparatus for fibrous materials
IN170121B (fr) *	1986-07-08	1992-02-15	Rieter Ag Maschf
DE8712426U1 (de) *	1987-09-14	1987-10-22	Hoechst Ag, 6230 Frankfurt	Vorrichtung zum Vereinzeln und Zuteilen von Fasern
TWM341034U (en) *	2008-04-28	2008-09-21	qi-tian Zhang	Improved structure of single-beating high force cotton removing machine

2009
- 2009-12-17 CH CH01941/09A patent/CH702443A1/de not_active Application Discontinuation
2010
- 2010-11-30 EP EP20100015111 patent/EP2336405B1/fr not_active Not-in-force
- 2010-12-16 CN CN201010591581.2A patent/CN102102246B/zh not_active Expired - Fee Related

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1978036A (en) *	1933-12-08	1934-10-23	Winfred W Windle	Wool opener
CH357307A (de) *	1957-11-29	1961-09-30	Rieter Ag Maschf	Trommel-Öffner und -Reiniger
US3559804A (en) *	1968-10-22	1971-02-02	Fiber Controls Corp	Fiber cleaner
GB2000534A (en) *	1977-06-24	1979-01-10	Platt Saco Lowell Ltd	Apparatus for opening and cleaning fibrous material
EP0379726A1 (fr)	1989-01-26	1990-08-01	Maschinenfabrik Rieter Ag	Machine de nettoyage pour fibres textiles
EP0381860A2 (fr)	1989-01-31	1990-08-16	Maschinenfabrik Rieter Ag	Machine de nettoyage pour fibres textiles
DE3932282A1 (de) *	1989-09-27	1991-04-04	Hollingsworth Gmbh	Vorrichtung zum oeffnen und reinigen von fasergut
EP0447966A1 (fr)	1990-03-23	1991-09-25	Maschinenfabrik Rieter Ag	Machine de nettoyage pour fibres textiles
WO2006047897A1 (fr) *	2004-11-04	2006-05-11	Maschinenfabrik Rieter Ag	Dispositif de nettoyage servant a retirer des amas de fibres

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE202020107466U1 (de)	2020-12-22	2022-03-25	Trützschler GmbH & Co Kommanditgesellschaft	Vorrichtung an oder in einer Textilmaschine und damit ausgestattete Textilmaschine
DE102020134591A1 (de)	2020-12-22	2022-06-23	Trützschler GmbH & Co Kommanditgesellschaft	Vorrichtung an oder in einer Textilmaschine und damit ausgestattete Textilmaschine
EP4019676A1 (fr)	2020-12-22	2022-06-29	Trützschler Group SE	Dispositif sur ou dans une machine textile et machine textile équipée d'un tel dispositif

Also Published As

Publication number	Publication date
EP2336405B1 (fr)	2012-05-23
CH702443A1 (de)	2011-06-30
CN102102246B (zh)	2015-07-29
CN102102246A (zh)	2011-06-22

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