CA1090106A - Method and apparatus for pneumatic manufacture of yarn - Google Patents
Method and apparatus for pneumatic manufacture of yarnInfo
- Publication number
- CA1090106A CA1090106A CA273,575A CA273575A CA1090106A CA 1090106 A CA1090106 A CA 1090106A CA 273575 A CA273575 A CA 273575A CA 1090106 A CA1090106 A CA 1090106A
- Authority
- CA
- Canada
- Prior art keywords
- chamber
- air
- fibres
- yarn
- spinning
- 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.)
- Expired
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
- D01H4/02—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Preliminary Treatment Of Fibers (AREA)
- External Artificial Organs (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The invention is a method and apparatus for the pneumatic production of yarn from fibres in a non-rotational stationary spinning chamber using a jet of air to cause the fibres to swirl around in a ring in the chamber, wherein the flow of air in the chamber is restricted to reduce or prevent the formation of a whirling core of air about the centre line of the chamber and to cause air to pass along the wall of the chamber. The invention permits the rate of yarn production to be increased.
The invention is a method and apparatus for the pneumatic production of yarn from fibres in a non-rotational stationary spinning chamber using a jet of air to cause the fibres to swirl around in a ring in the chamber, wherein the flow of air in the chamber is restricted to reduce or prevent the formation of a whirling core of air about the centre line of the chamber and to cause air to pass along the wall of the chamber. The invention permits the rate of yarn production to be increased.
Description
~5 ~')lO~j This invention relates to a method of and apparatus for pneumatic manufacture of yarn from natural- or synthetic fibres.
The hitherto known process of pneumatic spinning comprises supply-ing fibres to a non-rotational, stationary spinning chamber in which air jets cause the fibres to form a sort of whirling ring and produce the peripheral velocity appropriate field in ~ section where forming and twisting of yarn takes place by collecting the fibres from the said whirling ring of fibres.
The existing apparatus for pneumatic spinning of yarn comprises a cylindrical, non-rotational stationary chamber into which the fibres are introduced and put into rotational motion by means of jets of air being sucked into the chamber through ducts or passages arranged in the periphery of the chamber. The thus produced yarn is discharged through a channel pro-vided in a cylindrical insert inside the chamber.
The rate of the spinning process is proportional to the peri-pheral velocities within the zone in which the fibres form the whirling ring.
Appropriate forming of the peripheral velocity field is counteracted by a whirling core produced about the centre line of the chamber, whereby the rotational field becomes intensified within the said whirling core, thus preventing further increase of peripheral velocities at the chamber walls.
According to the newly invented-method for pneumatic manufacture of yarn, flow of quick whirling air particles is r~stricted from the central whirling core, the swirled air being forced to pass along the chamber walls.
The apparatus for effecting the invented method, being embodied in the form of the cylindrical, non rotational, stationary, spinning chamber, is provided with the facility to force the air flow longwise the said chamber walls, this facility being located beneath the whirling fibre ring, and/or the air guides arranged under the said facility,in the chamber outlet.
According to one aspect of the invention there is provided a method for the pneumatic production of yarn from fibres in a non-rotational stationary spinning chamber using a jet of air to cause the fibres to swirl B
l~f)10~
around in a ring in the chamber, wherein the flow of air in the chamber is restricted to reduce or prevent the formation of a whirling core of air about the centre line of the chamber and to cause air to pass along the wall of the chamber, said flow of air being in a partly longitudinal direction relative to the chamber.
According to a further aspect of the invention there is provided apparatus for use in the pneumatic production of yarn from fibres, which apparatus comprises (a) a cylindrical non-rotational, stationary spinning chamber provided with a peripheral duct for the supply of air and a fibre delivery channel for the supply of fibres to the chamber~ (b) an insert in one end of the spinning chamber which limits or closes the said one end of the spinning chamber, which insert is provided with a yarn discharge channel, means for connecting the other end of the spinning chamber to a source of vacuum, (c) a cylindrical element situated beneath the region in which in operation a whirling fibre ring is formed and (d) air guides provided beneath the cylindrical elements in the chamber outlet for guiding air in a partly longitudinal direction relative to the chamber.
With the air flow forcedlongwise the chamber walls, the swirling air flow within the said whirling core becomes weakened, thus increasing the yarn spinning rate. With the air flow guides being arranged in the chamber outlet, some portion of the kinetic energy of the jet of air can be recovered.
The invention is further illustrated with reference to the accom-panying drawing showing, by way of example, a sectional elevation of one em- ~`
bodiment of apparatus in accordance with the invention.
Accordingly, the apparatus includes a cylindrical spinning chamber ~ - -1 which is closed from its one end by a cylindrical insert 2. The other end ~-of chamber 1 communicates with a vacuum source, via a suction duct 5. The insert 2 is provided with a concentric channel 3 for the discharge of yarn 4.
On its periphery, the chamber 1 has air supply ducts 6, which can be located in any section of the chamber, and a fibre delivery channel 7. Inside the chamber 1, beneath the yarn spinning level, a cylindrical element 8, such as a disX, round ;. ~ .
'. ' : ' ' ' f.U~
head or other shaped item is provided. Beneath this element 8 in the chamber outlet, from the air suction side the guides 9 are arranged, by means of which the kinetic energy can be partially recovered and converted into potential energy.
The method of yarn spinning by means of this apparatus comprises sucking of air into the chamber 1, and making it whirl inside the chamber.
me fibres which enter the chamber are entrained in rotational motion caused by the sucked air jet, to produce the fibre ring 10 rotating over the chamber 1 inner walls. As the sucked air jet meets the element 8, which restricts the 10 swirling air flow from the chamber walls towards the whirl core, the air par- -ticles moving with high peripheral velocity will pass longwise the chamber walls, thus the whirl producing effect being reduced.
To start spinning, a length of yarn is introduced, via the channel 3 into the chamber 1, and after having been put into rotational motion therein~
- this length will gather fibres from the whirling ring lO to twist them, where-upon the ready yarn 4 is discharged from the chamber.
,
The hitherto known process of pneumatic spinning comprises supply-ing fibres to a non-rotational, stationary spinning chamber in which air jets cause the fibres to form a sort of whirling ring and produce the peripheral velocity appropriate field in ~ section where forming and twisting of yarn takes place by collecting the fibres from the said whirling ring of fibres.
The existing apparatus for pneumatic spinning of yarn comprises a cylindrical, non-rotational stationary chamber into which the fibres are introduced and put into rotational motion by means of jets of air being sucked into the chamber through ducts or passages arranged in the periphery of the chamber. The thus produced yarn is discharged through a channel pro-vided in a cylindrical insert inside the chamber.
The rate of the spinning process is proportional to the peri-pheral velocities within the zone in which the fibres form the whirling ring.
Appropriate forming of the peripheral velocity field is counteracted by a whirling core produced about the centre line of the chamber, whereby the rotational field becomes intensified within the said whirling core, thus preventing further increase of peripheral velocities at the chamber walls.
According to the newly invented-method for pneumatic manufacture of yarn, flow of quick whirling air particles is r~stricted from the central whirling core, the swirled air being forced to pass along the chamber walls.
The apparatus for effecting the invented method, being embodied in the form of the cylindrical, non rotational, stationary, spinning chamber, is provided with the facility to force the air flow longwise the said chamber walls, this facility being located beneath the whirling fibre ring, and/or the air guides arranged under the said facility,in the chamber outlet.
According to one aspect of the invention there is provided a method for the pneumatic production of yarn from fibres in a non-rotational stationary spinning chamber using a jet of air to cause the fibres to swirl B
l~f)10~
around in a ring in the chamber, wherein the flow of air in the chamber is restricted to reduce or prevent the formation of a whirling core of air about the centre line of the chamber and to cause air to pass along the wall of the chamber, said flow of air being in a partly longitudinal direction relative to the chamber.
According to a further aspect of the invention there is provided apparatus for use in the pneumatic production of yarn from fibres, which apparatus comprises (a) a cylindrical non-rotational, stationary spinning chamber provided with a peripheral duct for the supply of air and a fibre delivery channel for the supply of fibres to the chamber~ (b) an insert in one end of the spinning chamber which limits or closes the said one end of the spinning chamber, which insert is provided with a yarn discharge channel, means for connecting the other end of the spinning chamber to a source of vacuum, (c) a cylindrical element situated beneath the region in which in operation a whirling fibre ring is formed and (d) air guides provided beneath the cylindrical elements in the chamber outlet for guiding air in a partly longitudinal direction relative to the chamber.
With the air flow forcedlongwise the chamber walls, the swirling air flow within the said whirling core becomes weakened, thus increasing the yarn spinning rate. With the air flow guides being arranged in the chamber outlet, some portion of the kinetic energy of the jet of air can be recovered.
The invention is further illustrated with reference to the accom-panying drawing showing, by way of example, a sectional elevation of one em- ~`
bodiment of apparatus in accordance with the invention.
Accordingly, the apparatus includes a cylindrical spinning chamber ~ - -1 which is closed from its one end by a cylindrical insert 2. The other end ~-of chamber 1 communicates with a vacuum source, via a suction duct 5. The insert 2 is provided with a concentric channel 3 for the discharge of yarn 4.
On its periphery, the chamber 1 has air supply ducts 6, which can be located in any section of the chamber, and a fibre delivery channel 7. Inside the chamber 1, beneath the yarn spinning level, a cylindrical element 8, such as a disX, round ;. ~ .
'. ' : ' ' ' f.U~
head or other shaped item is provided. Beneath this element 8 in the chamber outlet, from the air suction side the guides 9 are arranged, by means of which the kinetic energy can be partially recovered and converted into potential energy.
The method of yarn spinning by means of this apparatus comprises sucking of air into the chamber 1, and making it whirl inside the chamber.
me fibres which enter the chamber are entrained in rotational motion caused by the sucked air jet, to produce the fibre ring 10 rotating over the chamber 1 inner walls. As the sucked air jet meets the element 8, which restricts the 10 swirling air flow from the chamber walls towards the whirl core, the air par- -ticles moving with high peripheral velocity will pass longwise the chamber walls, thus the whirl producing effect being reduced.
To start spinning, a length of yarn is introduced, via the channel 3 into the chamber 1, and after having been put into rotational motion therein~
- this length will gather fibres from the whirling ring lO to twist them, where-upon the ready yarn 4 is discharged from the chamber.
,
Claims (2)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for the pneumatic production of yarn from fibres in a non-rotational stationary spinning chamber using a jet of air to cause the fibres to swirl around in a ring in the chamber, wherein the flow of air in the chamber is restricted to reduce or prevent the formation of a whirling core of air about the centre line of the chamber and to cause air to pass along the wall of the chamber, said flow of air being in a partly longitudinal direction relative to the chamber.
2. Apparatus for use in the pneumatic production of yarn from fibres, which apparatus comprises (a) a cylindrical non-rotational, stationary spin-ning chamber provided with a peripheral duct for the supply of air and a fibre delivery channel for the supply of fibres to the chamber, (b) an in-sert in one end of the spinning chamber which limits or closes the said one end of the spinning chamber, which insert is provided with a yarn discharge channel, means for connecting the other end of the spinning chamber to a source of vacuum, (c) a cylindrical element situated beneath the region in which in operation a whirling fibre ring is formed, and (d) air guides pro-vided beneath the cylindrical elements in the chamber outlet for guiding air in a partly longitudinal direction relative to the chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL18785476A PL102221B1 (en) | 1976-03-10 | 1976-03-10 | METHOD AND APPARATUS FOR PNEUMATICALLY MANUFACTURING YARN |
| PLP-187854 | 1976-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1090106A true CA1090106A (en) | 1980-11-25 |
Family
ID=19975928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA273,575A Expired CA1090106A (en) | 1976-03-10 | 1977-03-09 | Method and apparatus for pneumatic manufacture of yarn |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS52144432A (en) |
| CA (1) | CA1090106A (en) |
| CH (1) | CH618220A5 (en) |
| CS (1) | CS189597B2 (en) |
| DE (1) | DE2710486C3 (en) |
| FR (1) | FR2343836A1 (en) |
| GB (1) | GB1567681A (en) |
| PL (1) | PL102221B1 (en) |
| SU (1) | SU707529A3 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS170117B2 (en) * | 1973-07-14 | 1976-08-27 |
-
1976
- 1976-03-10 PL PL18785476A patent/PL102221B1/en unknown
-
1977
- 1977-02-22 CH CH216977A patent/CH618220A5/en not_active IP Right Cessation
- 1977-02-24 GB GB775677A patent/GB1567681A/en not_active Expired
- 1977-03-04 FR FR7706449A patent/FR2343836A1/en active Granted
- 1977-03-07 CS CS149977A patent/CS189597B2/en unknown
- 1977-03-09 CA CA273,575A patent/CA1090106A/en not_active Expired
- 1977-03-09 SU SU772456958A patent/SU707529A3/en active
- 1977-03-10 DE DE19772710486 patent/DE2710486C3/en not_active Expired
- 1977-03-10 JP JP2658677A patent/JPS52144432A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1567681A (en) | 1980-05-21 |
| SU707529A3 (en) | 1979-12-30 |
| FR2343836A1 (en) | 1977-10-07 |
| JPS52144432A (en) | 1977-12-01 |
| CH618220A5 (en) | 1980-07-15 |
| PL102221B1 (en) | 1979-03-31 |
| DE2710486B2 (en) | 1978-07-20 |
| FR2343836B1 (en) | 1980-06-13 |
| DE2710486C3 (en) | 1979-03-22 |
| CS189597B2 (en) | 1979-04-30 |
| DE2710486A1 (en) | 1977-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3328949A (en) | Device for continuous centrifugal spinning | |
| KR100238743B1 (en) | Apparatus and method for forming fibres | |
| US3511044A (en) | Method of and apparatus for ringless spinning of fibers | |
| US20120192541A1 (en) | Component For An Air Jet Spinning Device | |
| US3538698A (en) | Break-spinning apparatus | |
| US2853847A (en) | Method of and apparatus for intertwining fibers to form roving or yarn | |
| CZ287858B6 (en) | Apparatus for making man-made vitreous fiber (MMVF) products, process for producing such products and cascade spinner for apparatus making the same | |
| US3577720A (en) | Device for twisting yarn | |
| US3620002A (en) | Open end spinning assembly and method | |
| JPH01314738A (en) | Sliver guide pipeline | |
| US4249370A (en) | Method of and apparatus for removing dirt particles from staple fibers and for straightening said fibers in an open-end spinning process | |
| US7281366B2 (en) | Arrangement device for producing a spun thread | |
| US5390485A (en) | Pneumatic type spinning apparatus for reducing waste | |
| CA1090106A (en) | Method and apparatus for pneumatic manufacture of yarn | |
| CA1135575A (en) | Thread spinning apparatus | |
| US3851455A (en) | Method for manufacturing yarn from natural and chemical fibers and a device for carrying out the method | |
| CA1068089A (en) | Method for manufacture of yarn, and the equipment to use the method | |
| GB2041993A (en) | Apparatus for producing a bound yarn | |
| US4207728A (en) | Equipment for pneumatic manufacture of yarn | |
| CA1070097A (en) | Method for manufacturing of yarn and the equipment to use the method | |
| US4070812A (en) | Equipment for pneumatic manufacture of yarn | |
| US7043893B2 (en) | Device for producing a spun yarn | |
| US5414990A (en) | Process and device for conveying fibers in an airstream in an open-end spinning rotor | |
| US4539808A (en) | Fiber control apparatus in an open-end spinning frame | |
| JPS59130323A (en) | Method and apparatus for spinning yarn from staple fiber in whirled air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |