EP0358722A1 - Mit nadeln versehener nadelring für die auflösewalze einer offen-end-spinn-maschine. - Google Patents
Mit nadeln versehener nadelring für die auflösewalze einer offen-end-spinn-maschine.Info
- Publication number
- EP0358722A1 EP0358722A1 EP88905654A EP88905654A EP0358722A1 EP 0358722 A1 EP0358722 A1 EP 0358722A1 EP 88905654 A EP88905654 A EP 88905654A EP 88905654 A EP88905654 A EP 88905654A EP 0358722 A1 EP0358722 A1 EP 0358722A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needles
- needle
- ring
- section
- cross
- 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
- 238000007383 open-end spinning Methods 0.000 title claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 2
- 238000009987 spinning Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
- Needle ring provided with needles for the opening roller 5 of an open-end spinning machine
- An all-steel set corresponds more or less to a punched, ie sharp-edged saw blade used in the grooves of the roller.
- the opening rollers with all-steel fittings have the advantage over the needle rollers that they can be used in almost all spinning boxes, even when heavily contaminated wool is spun, whereas the known needle rollers are only in the
- the new needle roller provided according to the present invention now has both the advantages of the all-steel clothing rollers and the advantages of the bis-5
- FIG. 1 shows a side view of a needle ring
- FIG. 3 shows the detail from FIG. 2, designated III, but on a larger scale
- FIG. 4 shows a round needle cross-section
- FIG. 5 shows a flattened needle cross-section on the scale of FIG. 4
- FIG. 6 shows a plan view of the needle inserted in the hole on an even larger scale.
- FIGS. 1, 2 and 3 how the needles 1 are inserted into a needle ring 2 which is expediently made of aluminum or brass.
- the ring has, for example, an inner diameter of 50 mm and an outer diameter of 58 mm, that is to say a wall thickness of 4 mm, the needles being 1 7 mm long, that is to say 4 mm in the ring and projecting approximately 3 mm from the ring surface .
- the currently known needle rings are equipped with a few hundred needles, each of which has a circular cross section with a diameter of 0.8 mm, for example.
- the needle roller according to the present invention now does not contain needles with a circular cross section, as shown in FIG. 4 of the drawing, but needles with a flattened cross section.
- the cross section can thus either have an oval shape or the shape of a rectangle provided with rounded corners or a shape lying between these two shapes, the needle tip essentially having a lancet-like shape.
- Such needles are produced, for example, from sections of a round wire in that, as is known in the manufacture of needles, they are attached to them Sections on one side grind a tip.
- these needles are pressed so flat that their resulting width 1b reaches about 4 to 6 times the thickness la reduced by pressing, ie the longer cross-sectional axis 4 is approximately three times as long as the shorter cross-sectional axis 5.
- These needles 1 with lancet-like tips are now arranged in the ring 2 such that the shorter axis 5 of the needle cross-section runs parallel to the ring axis 2a.
- these needles also have a
- the needles 1 can sit radially in the ring 2 or, as shown in the drawing, they can be used in the ring 2 such that their axes 1c on the needle foot with the ring radius 2b on the needle foot with the ring radius have an angle c of up to Form 30 °.
- the holes into which the needles are inserted are expediently bores 3 with a diameter 3a which is somewhat smaller than the width 1b of the flat-pressed needles, so that the needles 1 can only be inserted into these holes 3 after two grooves have been created in the wall of each hole by punching.
- These grooves are dimensioned such that the needles 1 have to be used with a certain amount of force, which has the consequence that the needles 1 are then captively stuck in the bore 3 deformed in this way.
- the needle used only fills the cross section of the bore 3 to a fraction, so that there is an opening 3b on each side of each needle, which can not only be used for this, through an inside of the needle ring supplied air flow or a negative pressure applied to the inside of the needle ring to control the air flow causing the fiber transport in the spinning unit, but also, if desired, to continuously or intermittently suck off fine dirt.
- Needle rings with lancet-like needle tips which have been produced from round needles by flat pressing, have the same good properties with regard to the resolving power such as the needle rings with sawtooth strips inserted, which are unsuitable per se because of their relatively short service life.
- the needles have a completely different texture than the sawtooth strips, they have a considerably longer service life than the opening rollers provided with the sawtooth strips and are therefore also suitable for replacing them when there is no need for the possibility to use the control of the air flow.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88905654T ATE94918T1 (de) | 1987-08-03 | 1988-07-21 | Mit nadeln versehener nadelring fuer die aufloesewalze einer offen-end-spinn-maschine. |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH296787 | 1987-08-03 | ||
| CH2967/87 | 1987-08-03 | ||
| CH807/88 | 1988-03-03 | ||
| CH80788 | 1988-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0358722A1 true EP0358722A1 (de) | 1990-03-21 |
| EP0358722B1 EP0358722B1 (de) | 1993-09-22 |
Family
ID=25685746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88905654A Expired - Lifetime EP0358722B1 (de) | 1987-08-03 | 1988-07-21 | Mit nadeln versehener nadelring für die auflösewalze einer offen-end-spinn-maschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5019110A (de) |
| EP (1) | EP0358722B1 (de) |
| JP (1) | JPH02500118A (de) |
| DE (1) | DE3884393D1 (de) |
| WO (1) | WO1989001064A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH681020A5 (de) * | 1990-04-30 | 1992-12-31 | Rieter Ag Maschf | |
| DE19531605C2 (de) * | 1995-08-28 | 2001-07-19 | Graf & Co Ag | Fixkamm für eine Kämmaschine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1323885A (en) * | 1919-12-02 | Machine for treating wool | ||
| US304208A (en) * | 1884-08-26 | Verviers | ||
| US1115990A (en) * | 1913-07-23 | 1914-11-03 | William R Brown | Fiber-cleaning apparatus. |
| GB287325A (en) * | 1927-03-29 | 1928-03-22 | Frank Holdsworth Bentham | Improvements in or connected with faller pins and bars for gill boxes and the like |
| US1944526A (en) * | 1932-03-04 | 1934-01-23 | Arthur J Perron | Shoddy-picker |
| US2028919A (en) * | 1934-06-27 | 1936-01-28 | W H Bagshaw Co | Textile picker |
| US2261452A (en) * | 1939-10-03 | 1941-11-04 | William Crabb & Company | Picker lag and pin |
| CH505919A (de) * | 1969-01-31 | 1971-04-15 | Chr Burckhardt Fa | Nadelwalze |
| DE3146006A1 (de) * | 1981-11-20 | 1983-06-01 | Staedtler & Uhl, 8540 Schwabach | Nadel fuer textilmaschinen und vorrichtung und verfahren zu ihrer herstellung |
-
1988
- 1988-07-21 EP EP88905654A patent/EP0358722B1/de not_active Expired - Lifetime
- 1988-07-21 US US07/353,638 patent/US5019110A/en not_active Expired - Fee Related
- 1988-07-21 WO PCT/CH1988/000129 patent/WO1989001064A1/de not_active Ceased
- 1988-07-21 JP JP63505828A patent/JPH02500118A/ja active Pending
- 1988-07-21 DE DE88905654T patent/DE3884393D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8901064A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02500118A (ja) | 1990-01-18 |
| WO1989001064A1 (fr) | 1989-02-09 |
| DE3884393D1 (de) | 1993-10-28 |
| EP0358722B1 (de) | 1993-09-22 |
| US5019110A (en) | 1991-05-28 |
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