EP1740744A1 - Flexibelbogen. - Google Patents
Flexibelbogen.Info
- Publication number
- EP1740744A1 EP1740744A1 EP05714748A EP05714748A EP1740744A1 EP 1740744 A1 EP1740744 A1 EP 1740744A1 EP 05714748 A EP05714748 A EP 05714748A EP 05714748 A EP05714748 A EP 05714748A EP 1740744 A1 EP1740744 A1 EP 1740744A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flexible
- arch
- card
- upper edge
- drum
- 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.)
- Granted
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
- D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
- D01G15/30—Bends
Definitions
- the present invention relates to a flexible sheet for a revolving card.
- the lid area forms the main carding zone and has the function of dissolving the flakes into individual fibers, eliminating impurities and dust, eliminating very short fibers, dissolving nits and parallelizing the fibers. Since the lids are clogged with dirt and fibers, it is necessary to clean them. This is why the revolving lid was developed, whereby the lid is held together by means of a chain or a strap and combined into an endless, circumferential band. One part is in direct use opposite the drum set. The remainder is transported in the supine position via deflection rollers and can be cleaned and possibly sanded.
- a narrow gap forms between the sets of covers and drum. It is obtained by guiding the revolving covers, guided by curved strips - called flexible bends, regulating bends, flex bows, flexible bends or sliding bends - along the circumference of the drum in a certain, not necessarily constant carding distance.
- the size of the carding gap for a revolving flat card is between 0.10 ... 0.30 mm for cotton or up to 0.40 mm for chemical fibers. Therefore, the precise adjustability of the flexible sheet is of central importance.
- the lids slide in the working position on the flexible sheets when the sets of drum and lids are arranged against each other.
- These flexible arches are approximately concentric to the drum axis of rotation, one on each side of the drum. They are attached to the side pieces or drum plates of the card in such a way that they can be adjusted easily and safely. Since the carding gap changes continuously with the grinding and wear of the clothing, the sheets must be flexible in order to readjust and thus correct the Carding gap to the target dimension, to be able to.
- the flexible bends are usually cast from a special alloy that has elastic properties. This means that the flexible bends can be brought into the required shape with relatively little effort and little tension.
- the object of the invention of the present application is to create a device of the type described at the outset which avoids the disadvantages mentioned and in particular prevents possible undesired deformations of the device between the set points.
- this object is achieved by a device having the features of independent patent claim 1.
- a device having the features of independent patent claim 1.
- the flexible sheet in such a way that when the setting points are adjusted, the upper edge of the flexible sheet rises or falls evenly over the entire carding area while maintaining the same shape. For example, it should be avoided that a flexible arch with an initially circular upper edge is elliptically shaped after the adjustment.
- Figure 1 Schematic representation of the card
- Figure 2 Schematic representation of the flexible sheets according to the invention
- Figure 1 shows a revolving card, e.g. B. the Rieter card C60 with a working width of 1.5 meters. Flakes of fiber are transported through transport channels (not shown) through the various blow molding process stages and finally fed to the cleaning shaft (16) of the card. Instead of a cleaner shaft, a normal filling shaft can also be provided. This then passes the fiber flakes on to the card as cotton wool.
- the feed device feeds the fiber flakes to the feeders (3).
- the licker open the fiber flakes and remove some of the dirt particles.
- the last licker-in roller transfers the fibers to the card drum (1).
- the card drum works together with the lids (7) and parallelises the fibers even further.
- the lids are cleaned by a lid cleaning (14) and possibly reground using a grinding device. After the Fa If several cycles have been carried out on the card drum, they are removed from the card drum by the take-off roller (4), fed to the removal area (5) and finally placed as a card sliver in a jug stock in a jug (not shown).
- the lids belong to a system of revolving lids (2), lids are moved over the drum surface with the help of an endless belt or a chain via deflection rollers (6) by means of a drive, mostly against the direction of rotation of the drum.
- the underside of the lid is provided with a set, for example with a sawtooth set or flexible sets in the form of ticks.
- the drum also has a set that works with the lid.
- a revolving cover set consists of around 80 ... 120 covers, only a part of which is in the working position.
- the number of lids in the working position is u. a. depending on the diameter of the drum and the convertible lid arrangement. On average there are 20 ... 46 lids.
- the flexible sheet has means (13) for adjusting the sheets, so that an exact adjustment of the carding gap can be carried out.
- This carding gap is normally set with a constant distance from the drum over almost the entire carding zone. However, the gap can also be set to open - the carding gap becomes larger - or it closes - the carding gap becomes smaller. To check the setting, slots can be made in the side of the arches, whereby the distance between the sets can be measured using measuring gauges.
- FIG. 2 describes a flexible sheet (8) according to the invention in more detail.
- the upper edge (9) of the sheet serves directly or indirectly as a sliding surface for the cover (7). These have special end pieces.
- the flexible sheet thus has an upper edge with a constant curvature, which serves as a sliding surface for the cover and is arranged in a circular, concentric manner with the drum axis of rotation. This leads to a constant carding gap over the entire carding zone.
- the inventive flexible arch is now characterized by a characteristic profile profile h ( ⁇ ), which is formed along the circumference (or upper edge (9)) in the direction of the center (12).
- the inventive geometry of the flexible sheet is therefore independent of the contour of the upper edge.
- the flexible arch will still have a circular shape afterwards, defined by a radius that is smaller or larger than the starting radius by this amount.
- the profile shape of the flexible arch is particularly dependent on the cross section of the flexible arch. Basically, a rectangular cross section is used, but a cross section in a trapezoidal shape or a rounded variant can also be used. Any cross-sections are also conceivable, which do not even have to be the same over the entire flexible arch. In particular, for a rectangular cross section:
- the profile height h ( ⁇ ) of the flexible bend in the interval 0 ⁇ ⁇ 0 can be constructed using the following formula for rectangular cross-sections:
- the inventive geometry of the flexible sheet is independent of the choice of materials or their properties. By appropriately calculating the profile shape from the area moment of inertia, holes - necessary in the flexible bend, if you want to check the set carding gap with a measuring gauge, for example - can also be taken into account.
- the flexible arch can also consist of several parts, which together again form an assembly, for. B. two wedge-shaped arc parts, as described in DE 196 51 894.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH7562004 | 2004-04-26 | ||
PCT/CH2005/000206 WO2005103349A1 (de) | 2004-04-26 | 2005-04-12 | Flexibelbogen. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1740744A1 true EP1740744A1 (de) | 2007-01-10 |
EP1740744B1 EP1740744B1 (de) | 2008-07-30 |
Family
ID=34963091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05714748A Not-in-force EP1740744B1 (de) | 2004-04-26 | 2005-04-12 | Flexibelbogen. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1740744B1 (de) |
CN (1) | CN100591814C (de) |
BR (1) | BRPI0510179A (de) |
DE (1) | DE502005004890D1 (de) |
WO (1) | WO2005103349A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101984160B (zh) * | 2010-10-21 | 2012-04-18 | 慈溪市益体模具塑料有限公司 | 一种梳棉机用盖板托环 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19651894B4 (de) * | 1996-12-13 | 2006-09-14 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung an einer Karde für Textilfasern, z. B. Baumwolle, Chemiefasern o. dgl. aus mit Garnitur versehenen Deckelstäben |
RU2147326C1 (ru) * | 1999-07-05 | 2000-04-10 | Костромской государственный технологический университет | Гибкая дуга хлопкочесальной машины |
DE10037710A1 (de) * | 2000-08-02 | 2002-02-14 | Rieter Ag Maschf | Vorrichtung zum Einstellen des Arbeitsspaltes zwischen den Spitzen von Deckelgarnituren und den Spitzen der Trommelgarnitur einer Karde |
-
2005
- 2005-04-12 WO PCT/CH2005/000206 patent/WO2005103349A1/de active IP Right Grant
- 2005-04-12 BR BRPI0510179-4A patent/BRPI0510179A/pt not_active IP Right Cessation
- 2005-04-12 DE DE502005004890T patent/DE502005004890D1/de active Active
- 2005-04-12 EP EP05714748A patent/EP1740744B1/de not_active Not-in-force
- 2005-04-12 CN CN200580012996A patent/CN100591814C/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005103349A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1946886A (zh) | 2007-04-11 |
BRPI0510179A (pt) | 2007-10-02 |
CN100591814C (zh) | 2010-02-24 |
WO2005103349A1 (de) | 2005-11-03 |
EP1740744B1 (de) | 2008-07-30 |
DE502005004890D1 (de) | 2008-09-11 |
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