WO2000029650A1 - Schmutzausscheider - Google Patents
Schmutzausscheider Download PDFInfo
- Publication number
- WO2000029650A1 WO2000029650A1 PCT/EP1999/008769 EP9908769W WO0029650A1 WO 2000029650 A1 WO2000029650 A1 WO 2000029650A1 EP 9908769 W EP9908769 W EP 9908769W WO 0029650 A1 WO0029650 A1 WO 0029650A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- channel
- dirt separator
- rotation
- separator according
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
- D01G15/24—Flats or like members
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/34—Grids; Dirt knives; Angle blades
Definitions
- the invention relates to a dirt separator for fiber-resolving devices, such as cards or cards, with a set-fitted roll, the card set being arranged opposite the set of rolls, between which at least two channels are provided which run essentially parallel to the axis of rotation of the roll, a first channel in the direction of rotation Roller is arranged in front of a second channel, and on the sides of the channels located in the direction of rotation of the roller in each case a separating knife is provided with a cutting edge which faces the clothing of the roller and is spaced therefrom
- Such a dirt separator is known, for example, from DE44 22 655 A1.
- the dirt separator shown there is intended for a carding device with a drum-shaped drum.
- the surface of the drum is equipped with a sawtooth-shaped clothing facing surface is also provided with a set.
- the carding segments are spaced from the roller, the fiber material to be cleaned moves in the gap formed by the carding segment and the reel
- Channels are formed between the carding segments, from which the dirt loosened by the fibers is drained off.
- the channels are equipped with a separation knife, through which the fiber fragments dirt particles and short fibers are separated. These dirt separators are used for cleaning and straightening fibers in textile processing
- the object of the invention is to improve a generic dirt separator by simple technical measures in such a way that the cleaning results are again improved compared to the prior art without the fiber being damaged or increasingly eliminated by the cleaning process.
- This object is achieved according to the invention for a dirt separator of the type mentioned Type solved in that an engagement of the cutting edge of the knockout knife of the first channel in the fiber guided on the clothing is more aggressive than the engagement of the cutting edge of the knockout knife of the second channel
- the engagement of the cutting knife's cutting edge changes in the running direction of the clothing from initially aggressive to gentle on the fibers
- the design according to the invention solves this task, contrary to this technical prejudice, in that it initially makes the intervention of the excrement knife aggressive and then increasingly gentle on the fibers. According to prevailing technical teaching, a deterioration in the cleaning effect and the fiber configuration would be expected with this procedure exactly the opposite effect, however, the cleaning effect is also handles improved significantly, the trash excretion increases and the nits are more smoothed compared to the known dirt separators
- the aggressive action of the cutting knife's cutting edge on the fiber is achieved in that the cutting edge is placed more strongly against the clothing.
- This can be achieved by the cutting edge of the cutting knife being bordered by a substantial front side of the knife, its inclination against the perpendicular to the clothing of the first channel is larger than that of the second channel. Due to the flat position against the fiber direction, the cutting edge has a stronger effect on nits and can more easily remove the trash.
- the strong positioning of the cutting edge on the surface of the rotating roller mitge ⁇ ssene air flow less disturbed, so that the aggressiveness of the knife intervention is increased with sharply adjusted knives compared to steeper knives
- adjustable knives are known from DE 44 22 655 A1, the setting of these knives is only changed in order to be adapted to different fiber materials and fiber thicknesses.
- the inclination or the angle of attack against the fiber is set the same for all separating knives
- the channels can each have a hold-down device in the direction of rotation of the roller in front of the discharge knife with a foot surface extending parallel to the clothing of the roller.
- the hold-down devices channel the entrained air flow over the rotating roller, on the other hand, they exert mechanical pressure on the fibers which leads to the chipping of dirt and to the alignment of the nits.
- the end of the foot surface in the direction of rotation of the roller can be spaced from the cutting edge, the distance between the foot surface and the cutting edge being smaller in the first channel than in the second channel that the flow at the roller surface can enter the channel in the direction of the fiber and the flow resistance decreases in the direction of the fiber, which can lead to a further improvement in the cleaning effect
- the end of the foot surface can be designed as an air guiding surface which is inclined against the direction of the grain. This further improves the separation of dirt and the air flow is better guided in the direction of the separating knife
- the hold-down device has a substantially L-shaped cross-section in a plane perpendicular to the axis of rotation of the roller, the foot surface being formed on one leg.
- that of the clothing can surface of the leg facing away from the channel with the foot surface also serve as a catchment for separated soiling. This soiling can no longer fall back onto the fiber after it has been separated from it.
- the cutting edges of the knives are subject to strong mechanical stress and therefore wear out.
- the holder has an adjustable inclination so that different fibers can be processed. If the channel lies between carding segments, the holder can preferably be attached to a carding segment.
- the knives should be inexpensive to manufacture and be easy to replace. It is therefore advantageous if the knives are essentially plate-shaped
- the air guide surface of the hold-down device can form a nozzle with the holder and / or at least a section of the discharge knife, which widens in the direction away from the fiber-guiding surface of the roller.
- the air flow is delayed, which leads to particularly good cleaning effects It has been found that such a design has good cleaning results, particularly in the channels lying at the front in the fiber running direction. nisse effects A good discharge of the flow is achieved if the nozzle is inclined in the direction of rotation of the roller, ie in the direction of the grain
- the air guide surface of the hold-down device forms a nozzle with the front side of the separating knife and / or the holder, which nozzle moves away from the clothing rejuvenated
- a simple mechanical configuration of the dirt separator can be achieved if the separating knife and / or the hold-down device and / or the channel extends in the direction of the axis of rotation of the roll continuously over the entire width of the roll.
- the wearing parts such as separating knife and hold-down device are light and inexpensive to be replaced in one piece
- FIG. 1 shows a carding device with a drum carding segment and the dirt separator according to the invention
- FIG. 2 shows the detail II of FIG. 1 in an enlarged view
- FIG. 1 shows a sectional view of a carding device 1 in a plane perpendicular to an axis of rotation D of a reel 2, which is designed as a roller rotating about the axis of rotation D.
- the surface 3 of the drum 2 is provided with a clothing which is suitable for carding fibers
- the drum 2 rotates clockwise in the exemplary embodiment shown, a fiber (not shown) of the garnished with a feed roller 4 Surface 3 is supplied and is removed after about half a turn by a take-off roller 5.
- the dirt separator 7 has a channel 10 which extends parallel to the axis of rotation D of the drum 2, continuously over the entire width of the drum 2.
- a holder 12 On the rear side 11 of the channel 10 in the fiber running direction 6 there is a holder 12 in which a separating knife 13 is held.
- the separating knife 13 is held in the holder 12 at an inclination N with respect to the fiber running direction 6.
- the holder 12 is in turn screwed onto the front 11 of the carding segment 8.
- the rear side 11 of the channel coincides with the front of the carding segment 8 pointing in the running direction 6 of the fiber.
- the separation knife 13 is held in the holder 12 by means of a pressure element 14 screwed into the holder 12.
- the pressure element 14 runs in the area of the knockout knife in the direction of a cutting edge pointing towards the surface 3 of the drum 2 with the gamiturbuck
- the contact surface 15 of the holder 12, on which the discharge knife 13 rests on the holder 12, is dimensioned such that the cutting edge 16 of the discharge knife 13 is at a predetermined distance from the surface 3 of the reel 2, which is decorated with gametes
- a hold-down device 17 Arranged on the front side of the channel 10 with respect to the fibers 6 is a hold-down device 17 which has a foot surface 18 opposite the gamiturbuckte surface 3 of the reel 2 The hold-down device 17 is attached to the fiber running direction 6 rear surface of a carding element. If necessary, between the front carding segment 8 and the hold-down 17 intermediate pieces 20 may be used
- an air guiding surface 21 is formed which, in the fiber running direction, extends away from the gaming-equipped surface 3 of the drum 2 at a predetermined angle.
- the air guiding surface 21 and the discharge knife 16 and the pressure element 14 of the holder 12 thus become a nozzle 22 is formed, which widens in the direction away from the clothing-equipped surface 3 of the reel 2
- the inclination N of the knockout knife 13 against the gauze-embossed surface 3 or the fiber running direction 6 can be changed by differently designed holders 12. This is achieved in a simple manner in that the contact surfaces 15 each have a different inclination and the pressure elements 14 of the holder 12 in their shape be adjusted accordingly
- the hold-down device 17, the holder 12, the pressure element 14 and the separating knife 13 can be continuous in the direction of the axis of rotation D of the drum or can also be divided into segments
- the dirt separators 7a and 7b are constructed identically.
- the dirt separators 7c 7d 7e and 7f are constructed identically to one another
- the two dirt separators 7a and 7b lying in front of the fiber 6 are constructed like the dirt separator.
- the inclination N of the separating knife 13 (omitted in FIG. 1 for the sake of simplicity) is approximately 40 degrees
- the rear 4 dirt separators 7c 7d 7e and 7f in fiber running device 6 have separating knives 13 which have an inclination angle N between 80 and 88 degrees. With these dirt separators, the holders 12 are essentially designed and the separating knives lie on the plate-shaped holders 12
- the nozzle surfaces 22c, 22d, 22e and 22f parallel to the surface 3 of the drum 2, which is equipped with gauze, are larger in the case of the four dirt separators 7c to 7f rearward in fiber than in the two front dirt separators 7a and 7b
- the fiber to be cleaned runs between the feed roller 4 and the take-off roller 5 on the gamiturbuckete surface 3 of the drum 2 Cut 16 on the fiber as well as the pressure of the foot surface 18 of the hold-down device 17 detached from the fiber and by the air flow which is associated with the clothing.
- embossed surface 3 moved, through the nozzle 22 into the channel 10 So that the separated dirt can not get back into the fiber, the back of the foot surface 18 is provided with a collecting surface 23 on which the dirt can deposit nits, i.e. knot-like mergers of Fibers are stretched by the engagement of the cutting edge 16 or fibers with nits that can no longer be separated are excreted through the cutting edge 16
- the cutting process on the cutting edge represented a mechanical load on the fiber, which becomes stronger the smaller the angle of inclination N.
- This higher mechanical load on the fiber is also referred to as aggressiveness of the knife engagement.
- the interventions on the front dirt separators 7a to 7b are more aggressive than on the rear dirt separators 7c to 7f in the fiber direction
- the application of the invention is not limited to the exemplary embodiment of a card.
- the dirt separators according to the invention can also be used in other devices of the textile industry, such as cleaning or sawtooth-related cleaning rollers, such as, for example, cleaning companies and lashers.
- at least two separating systems 7a and 7c are to be provided
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000582625A JP2002530538A (ja) | 1998-11-13 | 1999-11-15 | 不純物除去装置 |
EP99957310A EP1047816A1 (de) | 1998-11-13 | 1999-11-15 | Schmutzausscheider |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19852562.1 | 1998-11-13 | ||
DE1998152562 DE19852562C1 (de) | 1998-11-13 | 1998-11-13 | Schmutzausscheider |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000029650A1 true WO2000029650A1 (de) | 2000-05-25 |
Family
ID=7887800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/008769 WO2000029650A1 (de) | 1998-11-13 | 1999-11-15 | Schmutzausscheider |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1047816A1 (de) |
JP (1) | JP2002530538A (de) |
DE (1) | DE19852562C1 (de) |
WO (1) | WO2000029650A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10042205B4 (de) * | 2000-08-28 | 2004-10-21 | Hollingsworth Gmbh | Vorrichtung wie Karde oder Krempel für die Faserverarbeitung |
EP2310561B1 (de) * | 2008-07-11 | 2012-10-17 | Maschinenfabrik Rieter Ag | Arbeitselement an einer faserverarbeitenden maschine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094623A (ja) * | 1983-10-28 | 1985-05-27 | Toyoda Autom Loom Works Ltd | カ−ドの固定フラツト |
EP0387908A1 (de) * | 1989-03-17 | 1990-09-19 | Hollingsworth Gmbh | Vorrichtung zur Ausscheidung von Verunreinigungen eines Faserverbandes an einer Karde |
EP0423856A1 (de) * | 1989-09-27 | 1991-04-24 | FRATELLI MARZOLI & C. S.p.A. | Kardiervorrichtung für Textilmaterialien |
EP0690155A1 (de) * | 1994-06-28 | 1996-01-03 | Hollingsworth Gmbh | Schmutzausscheider mit Kardiervorrichtung |
EP0959157A1 (de) * | 1998-05-18 | 1999-11-24 | Gerhard Mandl | Stationäre Deckelanlage für Karden |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1409627A (en) * | 1917-09-19 | 1922-03-14 | Wehli Morris | Grating for the licker-in of cotton-carding engines |
-
1998
- 1998-11-13 DE DE1998152562 patent/DE19852562C1/de not_active Expired - Fee Related
-
1999
- 1999-11-15 WO PCT/EP1999/008769 patent/WO2000029650A1/de not_active Application Discontinuation
- 1999-11-15 EP EP99957310A patent/EP1047816A1/de not_active Withdrawn
- 1999-11-15 JP JP2000582625A patent/JP2002530538A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094623A (ja) * | 1983-10-28 | 1985-05-27 | Toyoda Autom Loom Works Ltd | カ−ドの固定フラツト |
EP0387908A1 (de) * | 1989-03-17 | 1990-09-19 | Hollingsworth Gmbh | Vorrichtung zur Ausscheidung von Verunreinigungen eines Faserverbandes an einer Karde |
EP0423856A1 (de) * | 1989-09-27 | 1991-04-24 | FRATELLI MARZOLI & C. S.p.A. | Kardiervorrichtung für Textilmaterialien |
EP0690155A1 (de) * | 1994-06-28 | 1996-01-03 | Hollingsworth Gmbh | Schmutzausscheider mit Kardiervorrichtung |
EP0959157A1 (de) * | 1998-05-18 | 1999-11-24 | Gerhard Mandl | Stationäre Deckelanlage für Karden |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 9, no. 237 (C - 305) 24 September 1985 (1985-09-24) * |
Also Published As
Publication number | Publication date |
---|---|
JP2002530538A (ja) | 2002-09-17 |
EP1047816A1 (de) | 2000-11-02 |
DE19852562C1 (de) | 2000-03-30 |
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