EP0263837A1 - Öffnerwalze. - Google Patents
Öffnerwalze.Info
- Publication number
- EP0263837A1 EP0263837A1 EP87901339A EP87901339A EP0263837A1 EP 0263837 A1 EP0263837 A1 EP 0263837A1 EP 87901339 A EP87901339 A EP 87901339A EP 87901339 A EP87901339 A EP 87901339A EP 0263837 A1 EP0263837 A1 EP 0263837A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening roller
- comb
- teeth
- opening
- cylindrical part
- 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
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
- D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
Definitions
- the present invention relates to an opening roller according to the preamble of claim 1.
- Such an opening roller is described in GB-PS 2 556 090.
- the comb strips of the opening combs which are predominantly circular in cross section, are rotatably mounted about their longitudinal axis in corresponding grooves in the cylindrical roller part and are held in a certain pivot position by exchangeable, removable plates of a certain shape.
- this older device it is sufficient with this older device to have different plates for different needle inclinations in stock.
- this known opening roller is so complex to manufacture that it is less expensive to keep a suitable opening roller in stock for each fiber material. Your advantage is that the
- the roller does not have to be thrown away, but rather the opening combs can be replaced individually without the roller having to be re-balanced.
- opening rolls of this type are, for example, in DE-A 2 045 863, DE-A 2 159 230, DE-A 2 520 706, EP-A 178 614, CS-A 161 414, CS-A 161 415, JP-A 46 -24661, JP-A 51-53297, JP-A 57-74987 and JP-A 61-59676.
- various means have been proposed to support the detachment of the fibers from the opening roller and the feeding to the spinning rotor.
- CS-A 161 414 shows toothed ejector elements arranged between the opener combs.
- the object of the present invention is to improve an opening roller of the type mentioned in the introduction in such a way that an improvement in quality can be achieved while maintaining the advantage of a simple structure in the case of different yarns produced in the open spinning process.
- FIG. 1 shows an opening roller in a perspective exploded view
- FIG. 2 shows a detail from a view in the direction of arrow II in FIG. 1
- 3 shows a detail of an opener comb in the direction of arrow III in FIG. 2 in an enlarged view
- FIG. 4 shows the same view as FIG. 2 of a second embodiment of the opener comb
- FIG. 5 is a view of an opening comb according to FIG. 4 in
- FIG. 6 shows a detail from a third embodiment of an opening comb in a view according to arrow III in FIG. 2,
- FIG. 7 shows a detail from a fourth exemplary embodiment of an opener comb in a view according to arrow III in FIG. 2, and
- FIG. 8 shows a graphical representation of the defects in the yarn as a function of the speed of the opener roller.
- the two- or three-part opening roller in FIG. 1 has a cylindrical part 1, the circumference of which is occupied by needles or teeth 2 in parallel rows. Fixed to this part 1 is an annular disk 3, in the inner circumference of which a bayonet groove 4 is cut.
- the opening roller also includes a stub shaft 5 which is rotatably mounted in a bearing (not shown) and on which a ring disk 6 and a sleeve 7 are arranged in a rotationally fixed manner.
- the cuff 7 carries 8 bayonet cams at the free end, which can be connected to the bayonet groove 4.
- Parallel slots or grooves 9 are provided in the cylindrical part 1.
- a comb strip 10 carrying the needles or teeth 2 is shaped, force and / or firmly attached.
- a comb strip 10 forms with the associated teeth 2 an opener comb 14.
- the needles or teeth 2 are preferably pointed.
- the comb strips 10 can consist of plastic or metal and can be held in the slots 9 with a friction fit or glue connection. But you can also (Fig. 4 and 5) designed on the foot with a dovetail cross-section and held in a correspondingly shaped groove 9, the comb 10 together with the teeth 2 consists of one piece.
- the comb strips 10 - when the annular disc 6 is removed - can be pushed out of the slots or grooves 9 laterally and damaged needles or rows of teeth can be replaced in this way without the need to re-balance the opening roller .
- the height of the teeth 2 is preferably the same. It is at least 1.5 millimeters, preferably 2 to 4 millimeters.
- the comb strips 10 protrude uniformly over the circumference of the cylindrical part 1, it being possible for at least one opening 11 to be present in this protruding part.
- the comb strips 10 protrude by at least 1 millimeter (reference number 13) from the lateral surface of the cylindrical part 1, the openings 11 being always oriented in the direction of rotation regardless of the inclination of the teeth 2.
- These openings 11 cause an air flow when opening a fiber strand, which reduces the friction between fiber and metal and consequently the formation of abrasion dust and the deposition of fiber abrasion on the roller.
- the needles or teeth 2 are connected to the comb strip 10 in such a way that after installation in the opening roller they are either at right angles to the direction of rotation (radially oriented) or inclined in the direction of rotation.
- the design of the needle or tooth trimmings on the drum can of course be chosen according to the fiber material to be processed.
- the comb strip 10 between the needles or teeth 2 can have a concave curve 12.
- an apex angle A of at least 10 ° is preferably selected.
- the radial distance 13 of the teeth 2 or the upper edge of the comb 10 from the lateral surface of the cylindrical part 20 l is at least 1 millimeter.
- openings 11 Although the advantageous effect of the openings 11 cannot be conclusively explained physically, it is assumed that they bring about a more favorable air stratification or a better air flow between the outer surface of the cylindrical part 1 on the one hand and the nonwoven fabric on the other hand.
- the openings 11 presumably reduce the air turbulence behind the rows of teeth and thereby favor the inclination of the fibers in parallel
- the opening roller according to the invention With the opening roller according to the invention, the frictional contact between the outer surface of the cylindrical part 1 and the fibers is avoided and limited to the upper narrow sides of the comb strips, which reduces the contact length to approximately 35 meters. This reduction in the length of friction produces a substantial improvement in quality with regard to the spun yarn.
- the improved combing effect of the opening roller according to the invention also allows the speed to be reduced significantly without thereby impairing the opening of the nonwoven fabric. Which shortens the contact length to around 25 meters.
- the opening roller described above significantly reduces the number of defects per 100,000 meters of spun yarn in an open-end spinning machine compared to known opening rollers.
- 8 shows the speed of the opening roller on the abscissa and the number of defects in the spun yarn on the ordinate.
- the upper curve shows the number of errors of a known opening roller as a function of its speed, whereas the lower curve shows the number of errors of an opening roller according to the invention. This comparison shows that the number of errors is reduced significantly, particularly at lower opening roller working speeds.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87901339T ATE69070T1 (de) | 1986-04-10 | 1987-03-27 | Oeffnerwalze. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1424/86A CH669215A5 (de) | 1986-04-10 | 1986-04-10 | Oeffnerwalze. |
CH1424/86 | 1986-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0263837A1 true EP0263837A1 (de) | 1988-04-20 |
EP0263837B1 EP0263837B1 (de) | 1991-10-30 |
Family
ID=4210133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87901339A Expired - Lifetime EP0263837B1 (de) | 1986-04-10 | 1987-03-27 | Öffnerwalze |
Country Status (7)
Country | Link |
---|---|
US (1) | US4868952A (de) |
EP (1) | EP0263837B1 (de) |
JP (1) | JPS63502998A (de) |
AT (1) | ATE69070T1 (de) |
CH (1) | CH669215A5 (de) |
DE (1) | DE3774241D1 (de) |
WO (1) | WO1987006277A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258802A (en) * | 1989-04-30 | 1993-11-02 | Minolta Camera Kabushiki Kaisha | Camera system which compensates for defocusing during operation |
DE10054697A1 (de) * | 2000-11-04 | 2002-05-08 | Schlafhorst & Co W | Auflösewalze für eine Offenend-Spinnvorrichtung |
DE102012100526A1 (de) * | 2012-01-23 | 2013-07-25 | Rieter Ingolstadt Gmbh | Garniturträger und Auflösewalze mit Schnellverschluss |
CN102704051B (zh) * | 2012-05-22 | 2015-01-21 | 山东济宁如意毛纺织股份有限公司 | 一种针梳机针圈维修更换装置 |
CN104818551B (zh) * | 2015-04-09 | 2017-03-15 | 苏州科明纺织有限公司 | 一种分梳辊 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2115605A (en) * | 1934-06-02 | 1938-04-26 | Proctor & Schwartz Inc | Carding machine |
US2832098A (en) * | 1954-11-15 | 1958-04-29 | Mee William Henry | Garnett wire |
NL130261C (de) * | 1960-07-28 | |||
CH505919A (de) * | 1969-01-31 | 1971-04-15 | Chr Burckhardt Fa | Nadelwalze |
DE2045863A1 (en) * | 1969-09-25 | 1971-04-08 | Vyzkumny Ustav Bavlnarsky, Usti Nad Orlici (Tschechoslowakei) | Open-end spinning carding roller |
CS161233B1 (de) * | 1970-12-23 | 1975-06-10 | ||
DE2520706A1 (de) * | 1975-05-09 | 1976-11-25 | Feldmuehle Anlagen Prod | Aufloesewalze |
FR2374441A1 (fr) * | 1976-12-16 | 1978-07-13 | Alsacienne Constr Meca | Tambour rotatif garni de pointes ou dents pour le traitement de rubans de fibres textiles |
JPS5774987A (en) * | 1980-10-27 | 1982-05-11 | Matsushita Seiko Kk | Far infrared ray heater |
DE3170900D1 (en) * | 1981-02-20 | 1985-07-11 | Rieter Ag Maschf | Removing cylinder for bales of fibres |
DE3336327A1 (de) * | 1983-10-06 | 1985-04-18 | Drei-S-Werk Präzisionswerkzeuge GmbH & Co Fertigungs-KG, 8540 Schwabach | Nadelwalze fuer textilmaschinen |
DE3438133A1 (de) * | 1984-10-18 | 1986-04-30 | Staedtler & Uhl, 8540 Schwabach | Aufloesewalze fuer open-end spinnmaschinen |
US4627131A (en) * | 1985-07-11 | 1986-12-09 | Kanai Juyo Kogyo Co., Ltd. | Combing roller for an open-end spinning machine |
JPH05153297A (ja) * | 1991-11-30 | 1993-06-18 | Nec Corp | フアクシミリ装置 |
JPH06159676A (ja) * | 1992-11-26 | 1994-06-07 | Mitsui Eng & Shipbuild Co Ltd | ボイラ炉内可燃性ガス検知装置 |
-
1986
- 1986-04-10 CH CH1424/86A patent/CH669215A5/de not_active IP Right Cessation
-
1987
- 1987-03-27 US US07/146,372 patent/US4868952A/en not_active Expired - Fee Related
- 1987-03-27 JP JP62501898A patent/JPS63502998A/ja active Pending
- 1987-03-27 DE DE8787901339T patent/DE3774241D1/de not_active Expired - Lifetime
- 1987-03-27 WO PCT/CH1987/000037 patent/WO1987006277A1/de active IP Right Grant
- 1987-03-27 EP EP87901339A patent/EP0263837B1/de not_active Expired - Lifetime
- 1987-03-27 AT AT87901339T patent/ATE69070T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8706277A1 * |
Also Published As
Publication number | Publication date |
---|---|
CH669215A5 (de) | 1989-02-28 |
JPS63502998A (ja) | 1988-11-02 |
DE3774241D1 (de) | 1991-12-05 |
ATE69070T1 (de) | 1991-11-15 |
WO1987006277A1 (en) | 1987-10-22 |
EP0263837B1 (de) | 1991-10-30 |
US4868952A (en) | 1989-09-26 |
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