CN112011858A - Twisting element for a spinning nozzle of an air spinning machine and spinning nozzle - Google Patents
Twisting element for a spinning nozzle of an air spinning machine and spinning nozzle Download PDFInfo
- Publication number
- CN112011858A CN112011858A CN202010463539.6A CN202010463539A CN112011858A CN 112011858 A CN112011858 A CN 112011858A CN 202010463539 A CN202010463539 A CN 202010463539A CN 112011858 A CN112011858 A CN 112011858A
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- China
- Prior art keywords
- air
- twisting element
- nozzle
- twisting
- spinning nozzle
- 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
- 238000009987 spinning Methods 0.000 title claims abstract description 78
- 239000000835 fiber Substances 0.000 claims abstract description 90
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/11—Spinning by false-twisting
- D01H1/115—Spinning by false-twisting using pneumatic means
-
- 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
- D01H4/02—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 imparting twist by a fluid, e.g. air vortex
Abstract
The invention relates to a twisting element (20) for a spinning nozzle (1) of an air spinning machine, wherein the twisting element (20) comprises an inlet (2) for a fiber bundle (3), wherein the twisting element (20) comprises air nozzles (7) each having an outlet opening (8) for introducing air into a swirl chamber (4) of the yarn nozzle (1) during normal use of the twisting element (20), such that a yarn (10) is produced within the swirl chamber (4) from the fiber bundle (3) entering via the inlet (2) in a transport direction (T). According to the invention, the twisting element (20) comprises a section made of a ceramic material, wherein the section (11) is arranged on a side of the outlet opening (8) of the air nozzle (7) facing away from the inlet opening (2) with reference to the transport direction (T). A spinning nozzle for an air textile machine is also described.
Description
Technical Field
The invention relates to a twisting element for a spinning nozzle of an air spinning machine, wherein the twisting element comprises an inlet for a fiber bundle, wherein the twisting element comprises air nozzles each having an outlet opening for introducing air into a swirl chamber of the yarn nozzle during normal use of the twisting element, so that a yarn is produced within the swirl chamber from the fiber bundle entering via the inlet in a transport direction.
Furthermore, a spinning nozzle for an air spinning machine is proposed, wherein the spinning nozzle has an inlet for a fiber strand and an internal swirl chamber, wherein the spinning nozzle has a yarn forming element which extends at least partially into the swirl chamber and has an inlet opening for the fibers of the fiber strand, wherein the spinning nozzle comprises air nozzles which each have an outlet opening, via which air can be introduced into the swirl chamber in order to rotate the fiber strand in order to produce a yarn in the region of the yarn forming element, and wherein the spinning nozzle has an outlet opening, via which the yarn can be drawn out of the swirl chamber.
Background
The spinning nozzle is used to produce a yarn from an elongate fiber strand by means of a swirling air flow generated by the air nozzle within a swirl chamber of the spinning nozzle. The fiber bundle is supplied by a drafting mechanism which homogenizes the fiber bundle before it enters the spinning nozzle. The inlet of the spinning nozzle is formed or defined by a so-called twisting element for guiding the fibers of the fiber bundle entering into the spinning nozzle and which comprises the discharge opening of the air nozzle.
After entering the spinning nozzle, the outer fibers of the fiber bundle are wound around the inner fibers (fiber core) in the region of the entry opening of the generally spindle-shaped fiber forming element arranged in the swirl chamber, so that as a result a yarn is produced, which is finally drawn out of the swirl chamber and from the spinning nozzle via the drawing channel of the yarn forming element and can be wound onto a sleeve by means of a winding device.
When the yarn is formed in the region of the entry opening of the yarn-forming element, a part of the fiber end protrudes outwards due to the swirling air flow (so-called fiber sun) and is thereby in contact with the region of the twisting element surrounding the yarn-forming element and with the surface of the yarn-forming element. This can lead to wear in this region over time, which can lead to poor yarn properties.
It has therefore been proposed to manufacture the elements from abrasion-resistant materials, such as ceramics (EP 3115485 a 1). However, the use of ceramics also has the disadvantage that the through openings required for the fiber material or the thread are difficult to produce or can be produced only at higher costs.
Disclosure of Invention
The object of the invention is therefore to provide a twisting element for an air spinning machine and a spinning nozzle which are improved over the prior art.
This object is achieved by the features of the independent claims.
The twisting element according to the invention is used in a spinning nozzle of an air spinning machine, wherein the twisting element comprises an inlet for a fiber strand, and wherein the twisting element comprises air nozzles (preferably in the form of bores within the wall of the twisting element), which each have an outlet opening for introducing air into a swirl chamber of the spinning nozzle in the case of normal use of the twisting element (i.e. after installation in the spinning nozzle), so that a yarn is produced within the swirl chamber from the fiber strand which enters via the inlet in the transport direction.
According to the invention, it is proposed that the twisting element comprises segments made of a ceramic material. The twisting element therefore also comprises one or more further segments which are not composed of a ceramic material. It is also provided that the section is arranged on the side of the outlet opening of the air nozzle facing away from the inlet opening with reference to the transport direction.
The advantage of the invention is that, in the case of normal use of the twisting element in the production of a yarn, the regions of the fiber bundle that pass through the twisting element and are in contact with the fibers, in particular with the fibers, are made of a ceramic material, which has a particularly high abrasion resistance. While the air nozzles are located in the region of the twisting elements which is arranged in front of the section of ceramic material with reference to the transport direction. The air nozzles are located in particular in the region of the twisting element which is composed of metal or plastic and can therefore be introduced into the twisting element by drilling in a conventional manner.
In the present invention, it is particularly advantageous if the distance between the outlet opening of the air nozzle and the section has a value of between 0.05mm and 5mm, preferably between 0.05mm and 0.5 mm. The air nozzles are located relatively close to the region of the entry openings of the yarn-forming elements, as seen in the transport direction after the introduction of the twisting elements, since the fibers are twisted in this region by means of the air flow introduced via the air nozzles. In other words: the above-mentioned fiber sun is located only closely behind the air nozzle, seen in the transport direction. Since the area of the fiber sun in contact with the twisting elements should have a high abrasion resistance, sections made of ceramic material should be arranged in this area.
It is advantageous if the air nozzles or the regions of the air nozzles in which the discharge openings are arranged in sections of the cabling element which are not made of ceramic material. This has the advantage that the air nozzles can be introduced into the respective regions relatively simply by drilling when the twist thread elements are manufactured. In this way, when the twisting element is inserted into the spinning nozzle of the air spinning machine, the transition between the ceramic material and the non-ceramic material, viewed in the transport direction, is located between the outlet opening of the air nozzle and the inlet opening of the yarn forming element.
It is also advantageous if the section is formed by an insert which is connected to a base body of the twisting element, wherein the base body comprises the outlet opening of the air nozzle. Preferably, the entire insert is made of a ceramic material.
The connection between the insert and the base body is effected, for example, by means of a form-fitting connection or by means of a material-fitting connection, for example, by means of an adhesive. Preferably, the insert is at least partially surrounded by the base body in a direction extending perpendicular to the transport direction. In particular, the section made of ceramic material is formed entirely by the insert.
It is also advantageous if the base body is at least largely composed of a non-ceramic material, preferably of a metal. In particular, the base body should be composed entirely or partially of steel, preferably hardened steel. It is also conceivable for the base body to be composed completely or partially of plastic. The air nozzles are preferably arranged only in the base body, i.e. not in the section of ceramic material.
It is also advantageous if the base body and the insert jointly form a through-passage for the fibers of the fiber bundle. For example, it is conceivable for the base body and the insert to have through-openings which together form a through-channel. After the twisting element is inserted into the spinning nozzle of the air spinning machine, the fibers of the fiber strand are introduced into the swirl chamber of the yarn nozzle by the twisting element during operation of the spinning nozzle. In this case, the yarn passes first in the transport direction through the region of the base body and then through the insert, wherein the fibers are twisted into a yarn in the region of the insert and are pulled into the drawing channel of the yarn-forming element. Preferably, the base body and/or the insert have a round cross section extending perpendicular to the transport direction at least in certain regions.
It is particularly advantageous if the outlet opening of the air nozzle is arranged in the region of a preferably cylindrical inner surface of the base body. The air nozzles are preferably arranged offset to the longitudinal axis of the base body and are acted upon by compressed air in such a way that a swirling air flow is induced in the free space enclosed by the inner surface of the base body. Preferably, the air nozzles pass through the entire outer wall of the base body. If the twisting element is inserted into the spinning nozzle, the compressed air required for the swirling air flow can be introduced from outside the twisting element through the base body into the swirl chamber.
It is also advantageous if the inner surface of the base body transitions flush into the inner surface of the insert in the transport direction of the fiber strand. This forms a smooth transition, so that undesired deflection of the fibers entering the twisting element is avoided. The inner surface of the base body and the inner surface of the insert together form the above-mentioned through-going channels for the fibres of the fibre bundle.
It is also advantageous if the base body has an annular step into which the insert is inserted, so that a flush transition between the base body and the insert is achieved. The annular step is preferably located in the region of the contact surface between the base body and the insert. In this way, a particularly stepped cross-sectional extension of the base body is preferably provided in the transport direction, which cross-sectional extension serves to accommodate the insert.
It is also advantageous if the insert is designed as a sleeve. The sleeve has a wall portion that outwardly defines a through opening of the sleeve, wherein the through opening is for passing the fiber therethrough. Advantageously, the inner diameter of the sleeve, viewed in the transport direction of the fiber bundle, is partially expanded from the side facing the air nozzle. Finally, in the region of the outlet opening of the sleeve formed in this way, there is a region of the thread-forming element which comprises an inlet opening for the fibers or for threads made of fibers.
It is particularly advantageous if the sleeve is rotationally symmetrical with respect to the axis of rotation. A simple connection between the sleeve and the base body is thereby achieved, since the sleeve is necessarily mounted in the correct angular position relative to the base body. The axis of rotation preferably extends through the twisting element in the transport direction of the arrangement of fibers.
It is also advantageous if the longitudinal extension of the sleeve running along the axis of rotation has a value of between 1mm and 5mm, preferably between 1.5mm and 4 mm. The longitudinal extension is sufficient to provide the area of the twisting element with a section of ceramic material which, during operation of the twisting element, comes into contact with the fibers of the fiber sun in the spinning nozzle. Finally, the remaining regions of the twisted elements may be composed of non-ceramic materials, as described above.
Advantageously, the sleeve has a wall thickness, the value of which is at least partially between 0.1mm and 4mm, preferably between 0.1mm and 2 mm. In particular, since the sleeve is designed as an insert, a small wall thickness is achieved since the sleeve itself does not have to withstand forces. Preferably, the fixing of the twisting element in the spinning nozzle is not effected via the sleeve, but via the base element.
The invention also relates to a spinning nozzle for an air spinning machine. The spinning nozzle comprises an inlet for a fiber bundle and a built-in swirl chamber. The spinning nozzle also has a spindle-shaped yarn forming element extending at least partially into the vortex chamber, which has an inlet opening for the fibers of the fiber strand, and a drawing channel connected at the inlet opening for the yarn produced in the spinning nozzle. In order to rotate the fibers of the fiber bundle within the swirl chamber as necessary, the spinning nozzle also has a plurality of air nozzles, each having an outlet opening, through which air can be introduced into the swirl chamber. Finally, an outlet opening is provided, which forms the end of the drawing channel and via which the thread can be drawn out of the swirl chamber.
The spinning nozzle is characterized in that it comprises a section made of ceramic material, wherein the section is arranged between the outlet opening of the air nozzle and the outlet opening of the spinning nozzle and surrounds the inlet opening of the yarn forming element and is in contact with the fibers of the fiber strand during operation of the spinning nozzle. As mentioned, during the production of the thread, a lateral extension of the fiber sun, caused by the fiber ends, occurs within the vortex chamber. The fiber ends pass at the section. Since the section is made of a ceramic material, it has a very high wear resistance in relation to the fiber ends, so that the service life of the spinning nozzle according to the invention is much longer than that of known spinning nozzles, in which the section is made of metal in the region of the inlet opening.
It is particularly advantageous if the spinning nozzle comprises a twisting element according to the preceding or following description, wherein the twisting element comprises an inlet for the fiber strand, an outlet of the air nozzle and a section of ceramic material.
In particular, the twisting elements can have the features described above or below, individually or in any combination.
If the twisting element comprises a base body and an insert with the segments, it is advantageous if the twisting element is connected to the wall of the spinning nozzle via the base body.
Drawings
Further advantages of the invention are described in the following embodiments. In which are schematically shown:
figure 1 shows a longitudinal section through a spinning nozzle according to the invention,
FIG. 2 shows a longitudinal section through a twisting element according to the invention, an
Fig. 3 shows a twisting element according to fig. 2 with selected dimensions.
Detailed Description
Fig. 1 shows a longitudinal section through a spinning nozzle 1 for an air spinning machine according to the invention. If the spinning nozzle 1 is integrated in an air spinning machine, the strand-shaped fiber bundle 3 is fed to the spinning nozzle 1 in a predetermined transport direction T. The fiber bundle 3 is usually fed by means of a drafting device, not shown, into the region of the inlet 2 of the spinning nozzle 1, which is formed by a so-called twisting element 20 and reaches the interior of the spinning nozzle 1 in the process. The inlet 2 can be partially restricted by a separate fibre guide element 15.
A vortex chamber 4, i.e. a cavity, is located in the interior, into which a spindle-shaped yarn forming element 5 projects. There is also an air nozzle 7 via which compressed air can be introduced into the swirl chamber 4 in the form of a swirling air flow during operation of the spinning nozzle 1. The outlet opening 8 of the air nozzle 7 is preferably located before the inlet opening 6 of the yarn-forming element, as seen in the transport direction T.
If compressed air is introduced into the swirl chamber 4 via the air nozzle 7 during operation of the spinning nozzle 1, a swirling air flow is formed. The swirling air flow deflects a portion of the fiber ends of the fibers of the fiber bundle 3 outwards from the fiber bundle 3 and forms a so-called fiber sun 22. The fiber ends are wound around the embedded fibers by the action of the moving fiber bundle 3 and the swirling air flow. Finally, the yarn 10 formed in this way is drawn out of the spinning nozzle 1 via the drawing channel 21, wherein the yarn 10 leaves the spinning nozzle 1 via the outlet 9, which forms the end of the drawing channel 21.
In the conventional spinning nozzle 1, the twisting element 20 is made of metal, so that wear of the inwardly directed surface of the twisting element 20 occurs due to mechanical contact between the fiber end of the fiber sun 22 and the region of the twisting element 20 surrounding the fiber sun 22.
In order to overcome this disadvantage, it is proposed according to the invention that the spinning nozzle 1 or the twisting element 20 has a section 11, which section 11 comes into contact with the fiber end of the fiber sun 22 during operation of the spinning nozzle 1, wherein the section 11 is made of a ceramic material. Ceramic materials are also understood to be inorganic, non-metallic and fired materials (e.g. porcelain) in the context of the present invention.
As can be seen from fig. 1 and also from fig. 2, the section 11 is advantageously formed by an insert 12, the insert 12 being connected to the base body 13, the insert 12 being arranged behind the outlet opening 8 of the air nozzle 7, as seen in the transport direction T. This has the advantage that the air nozzle 7 can be placed in an area which is not made of a ceramic material, but for example of metal or plastic. In this case, the air nozzle 7 can be produced relatively simply by drilling.
The base body 13 and the insert 12 together form a through-channel 14 for the fibers of the fiber bundle 3, wherein advantageously an inner surface 16 of the base body transitions flush into the insert 12.
The insert 12 is preferably rotationally symmetrical with respect to a longitudinal axis of the twisted element 20 extending in the transport direction T.
In particular, the insert 12 is shown in the drawing as a sleeve 17. This can be achieved by providing the base body 13 with an annular step 19, as shown in fig. 1, the annular step 19 forming a free space for accommodating the insert 12.
Fig. 3 shows the same view as fig. 2, wherein, instead of the reference numerals shown in fig. 2, the important dimensions of the twisting elements 20 are marked.
In addition, the twisting element 20 may comprise the fiber guiding element 15 as a separate component. It is also conceivable to dispense with the respective fiber guiding element 15 if the base body 13 only delimits the inlet opening 6.
It is basically advantageous if, as seen in the transport direction T, the section 11 made of ceramic material, in particular the insert 12, is as close as possible to the outlet opening 8 of the air nozzle 7. This ensures that the area where the fiber sun 22 can be formed is composed of a ceramic material. The distance a between the outlet opening 8 of the air nozzle 7 and the section 11 is therefore preferably only 0.05mm to 5mm in the transport direction T.
When the entire insert 12 is made of a ceramic material, the wall thickness W of the insert 12 may be relatively small. It is particularly advantageous if the wall thickness W of the insert 12 or of the sleeve 17 forming the insert 12 at least in sections has a value of between 0.1mm and 4mm, preferably between 0.1mm and 2 mm.
The longitudinal extent of the insert 12 or of the sleeve 17 forming the insert 12 extending on the longitudinal axis of the twisting elements 20 preferably has a value of between 1mm and 5mm, preferably between 1.5mm and 4mm, wherein the longitudinal extent L extends in the transport direction. It is also advantageous if the insert 12 has a rotational axis R which runs parallel to or the same as the transport direction T.
Finally, the figures and in particular fig. 3 show that, advantageously, the inner diameter D of the insert 12 increases at least partially in the transport direction T. This provides the space required for the yarn-forming element 5 to be enclosed in the region of its entry opening 6.
The invention is not limited to the embodiments shown and described. Variants in the claims are also possible with any combination of the features mentioned, even if these features are shown and described in different parts of the description or in the claims or in different embodiments, as long as there is no conflict with the teaching of the independent claims.
List of reference numerals
1 spinning nozzle
2 inlet
3 fiber bundle
4 vortex chamber
5 yarn-forming element
6 inlet
7 air nozzle
8 discharge port
9 outlet
10 yarn
11 sections of ceramic material
12 insert
13 base body
14 through passage
15 fibre guide element
16 inner surface of the substrate
17 Sleeve
18 inner surface of insert
19 annular step
20 twisted wire element
21 pulling channel
22 fiber sun
A distance between the outlet opening of the air nozzle and the segment
Inner diameter of D sleeve
Longitudinal extension of the L-shaped sleeve
R axis of rotation of sleeve
Direction of transport of the T-fibre bundle
Wall thickness of the W sleeve.
Claims (14)
1. A twisting element (20) for a spinning nozzle (1) of an air spinning machine, the twisting element (20) comprises an inlet (2) for a fiber bundle (3), the twisting elements (20) comprise air nozzles (7) each having a discharge opening (8), for introducing air into a swirl chamber (4) of the yarn nozzle (1) during normal use of the twisting element (20), so that a yarn (10) is produced within the vortex chamber (4) from a fiber bundle (3) entering via the inlet (2) in a transport direction (T), characterized in that the twisting elements (20) comprise segments (11) of ceramic material, the section (11) is arranged on the side of the discharge opening (8) of the air nozzle (7) facing away from the inlet (2) with reference to the transport direction (T).
2. Twisting element (20) according to the preceding claim, wherein the spacing (a) between the discharge opening (8) of the air nozzle (7) and the segment (11) has a value of between 0.05mm and 5mm, preferably between 0.05mm and 0.5 mm.
3. Twisting element (20) according to any one of the preceding claims, wherein the segments (11) are formed by inserts (12) which are connected to a base body (13) of the twisting element (20), the base body (13) comprising the outlet opening (8) of the air nozzle (7).
4. Twisting element (20) according to the preceding claim, wherein said base body (13) is at least for the most part made of a non-ceramic material, preferably of metal.
5. Twisting element (20) according to any one of claims 3 to 4, wherein the substrate (13) and the insert (12) jointly form a through channel (14) for the fibres of the fibre bundle (3).
6. Twisting element (20) according to any one of claims 3 to 5, wherein the discharge opening (8) of the air nozzle (7) is arranged in the region of a preferably cylindrical inner surface (16) of the base body (13).
7. Twisting element (20) according to the preceding claim, wherein the inner surface (16) of the base body (13) transitions flush into the inner surface (18) of the insert in the transport direction (T) of the fiber bundle (3).
8. Twisting element (20) according to any one of claims 3 to 7, wherein the base body (13) has an annular step (19) into which the insert (12) is inserted.
9. Twisting element (20) according to one of claims 3 to 8, wherein the insert (12) is configured as a sleeve (17), the inner diameter (D) of which preferably expands at least partially from the side facing the air nozzle (7) in the transport direction (T) of the fiber strand (3).
10. Twisting element (20) according to the preceding claim, wherein the sleeve (17) is configured rotationally symmetrically about the rotation axis (R).
11. Twisting element (20) according to the preceding claim, wherein the longitudinal development (L) of the sleeve (17) extending along the rotation axis (R) has a value of between 1mm and 5mm, preferably between 1.5mm and 4 mm.
12. Twisting element (20) according to any one of claims 9 to 11, wherein the sleeve (17) has a wall thickness (W) having a value at least partially between 0.1mm and 4mm, preferably between 0.1mm and 2 mm.
13. A spinning nozzle (1) for an air spinning machine, the spinning nozzle (1) comprising an inlet (2) for a fiber strand (3) and an internal swirl chamber (4), the spinning nozzle (1) having a yarn forming element (5) with an inlet opening (6) for fibers of the fiber strand (3) extending at least partially into the swirl chamber (4), the spinning nozzle (1) comprising air nozzles (7) each having an outlet opening (8) via which air can be introduced into the swirl chamber (4) in order to rotate the fiber strand (3) to produce a yarn (10) in the region of the yarn forming element (5), and the spinning nozzle (1) having an outlet opening (9) via which the yarn (10) can be pulled out of the swirl chamber (4), characterized in that the spinning nozzle (1) comprises a section (11) made of a ceramic material, which section (11) is arranged between the outlet opening (8) of the air nozzle (7) and the outlet opening (9) of the spinning nozzle (1) and surrounds the inlet opening (6) of the yarn forming element (5).
14. Spinning nozzle (1) according to the preceding claim, characterized in that it comprises a twisting element (20) according to one or more of the preceding claims, said twisting element (20) comprising an inlet (2) for the fiber bundle (3), an outlet (8) of the air nozzle (7) and a section (11) of ceramic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019114500.7 | 2019-05-29 | ||
| DE102019114500.7A DE102019114500A1 (en) | 2019-05-29 | 2019-05-29 | Twist element for a spinning nozzle of an air-jet spinning machine and spinning nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112011858A true CN112011858A (en) | 2020-12-01 |
| CN112011858B CN112011858B (en) | 2023-12-08 |
Family
ID=70681717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010463539.6A Active CN112011858B (en) | 2019-05-29 | 2020-05-27 | Twisting element for spinning nozzle of air spinning machine and spinning nozzle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3744880A1 (en) |
| CN (1) | CN112011858B (en) |
| DE (1) | DE102019114500A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4945718A (en) * | 1988-08-27 | 1990-08-07 | Fritz Stahlecker | Air nozzle for pneumatic false-twist spinning |
| EP0445554A2 (en) * | 1990-03-09 | 1991-09-11 | Rieter Ingolstadt Spinnereimaschinenbau AG | Yarn draw-off nozzle for an open-end spinning machine |
| CN1729322A (en) * | 2002-12-20 | 2006-02-01 | 里特机械公司 | Spinneret housing for an air-jet spinning device |
| DE102011053837A1 (en) * | 2011-09-21 | 2013-03-21 | Maschinenfabrik Rieter Ag | Spinning tip for a hollow spindle of an air-jet spinning machine |
| CN105239223A (en) * | 2015-10-22 | 2016-01-13 | 陕西华燕航空仪表有限公司 | Air injection vortex spinning organ |
| EP3115485A1 (en) * | 2015-07-06 | 2017-01-11 | Murata Machinery, Ltd. | Nozzle block, pneumatic spinning device, and spinning machine |
| CH713500A2 (en) * | 2017-02-28 | 2018-08-31 | Rieter Ag Maschf | Air-jet nozzle for an air-jet spinning machine for producing a yarn from a strand-like fiber structure. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2510792B2 (en) * | 1991-02-27 | 1996-06-26 | 京セラ株式会社 | Spinneret |
| DE10222635A1 (en) * | 2002-05-17 | 2003-12-18 | Ilias Efthimiou | off nozzle |
| WO2006063482A1 (en) * | 2004-12-15 | 2006-06-22 | Maschinenfabrik Rieter Ag | Spin box comprising a replaceable spindle |
-
2019
- 2019-05-29 DE DE102019114500.7A patent/DE102019114500A1/en active Pending
-
2020
- 2020-05-12 EP EP20174001.6A patent/EP3744880A1/en not_active Withdrawn
- 2020-05-27 CN CN202010463539.6A patent/CN112011858B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4945718A (en) * | 1988-08-27 | 1990-08-07 | Fritz Stahlecker | Air nozzle for pneumatic false-twist spinning |
| EP0445554A2 (en) * | 1990-03-09 | 1991-09-11 | Rieter Ingolstadt Spinnereimaschinenbau AG | Yarn draw-off nozzle for an open-end spinning machine |
| CN1729322A (en) * | 2002-12-20 | 2006-02-01 | 里特机械公司 | Spinneret housing for an air-jet spinning device |
| DE102011053837A1 (en) * | 2011-09-21 | 2013-03-21 | Maschinenfabrik Rieter Ag | Spinning tip for a hollow spindle of an air-jet spinning machine |
| EP3115485A1 (en) * | 2015-07-06 | 2017-01-11 | Murata Machinery, Ltd. | Nozzle block, pneumatic spinning device, and spinning machine |
| CN105239223A (en) * | 2015-10-22 | 2016-01-13 | 陕西华燕航空仪表有限公司 | Air injection vortex spinning organ |
| CH713500A2 (en) * | 2017-02-28 | 2018-08-31 | Rieter Ag Maschf | Air-jet nozzle for an air-jet spinning machine for producing a yarn from a strand-like fiber structure. |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3744880A1 (en) | 2020-12-02 |
| CN112011858B (en) | 2023-12-08 |
| DE102019114500A1 (en) | 2020-12-03 |
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