EP2997184A1 - Drafting device for spinning-knitting machines - Google Patents
Drafting device for spinning-knitting machinesInfo
- Publication number
- EP2997184A1 EP2997184A1 EP14716588.0A EP14716588A EP2997184A1 EP 2997184 A1 EP2997184 A1 EP 2997184A1 EP 14716588 A EP14716588 A EP 14716588A EP 2997184 A1 EP2997184 A1 EP 2997184A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drafting
- fiber strands
- projection
- nozzle unit
- swirl nozzles
- 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.)
- Withdrawn
Links
- 238000009940 knitting Methods 0.000 title claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 229920006240 drawn fiber Polymers 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/14—Circular knitting machines with independently-movable needles with provision for incorporating loose fibres, e.g. in high-pile fabrics
Definitions
- the invention relates to a drafting device for spinning-knitting machines with a drafting system, with the at least two rovings to
- Fiber strands are stretched parallel and at the output of a nozzle unit is arranged with mutually parallel swirl nozzles for each of the stretched fiber strands.
- Such delay devices are for example from the
- WO 2009/026734 AI known. They serve to supply the knitting needles of a knitting machine made of a roving fiber strands with substantially parallel aligned fibers.
- the knitted fabrics made from such fiber strands have a much softer surface compared to the surface of knitted fabrics made from conventional yarns. As the space especially on
- Circular knitting machines are cramped, are stretched parallel to each other with the drafting equipment at least two fiber strands, provided by swirl nozzles with a false twist and then fed knitting needles adjacent knitting.
- the with a vacuum unit - - Connected nozzle unit has for this purpose a swirl nozzle for each of the fiber strands produced by the drafting system.
- Influence of the two parallel formed yarns by transverse fibers of the other yarn is avoided by a arranged at the mouth of the suction tube separator plate, which extends to that point of the screen roller at which the two game formed detached from the screen roller.
- the yarns are not conveyed by the suction tube here, but withdrawn freely from the screen roller.
- the suction tube is used only for discharging the yarns in a yarn breakage, wherein a suction pipe is provided for both yarns.
- the present invention is based on the object, a
- the object is achieved by a drafting device for spinning knitting machines with a drafting system, with the at least two
- Swirl nozzles are arranged for each of the stretched fiber strands, which is characterized in that the nozzle unit between the
- Separation protrusion between the swirl nozzle entrances to the nozzle unit Can prevent yarn defects due to cross fibers of the fiber strands reaching the wrong swirl nozzle. If one of the nozzles clogs, its associated fiber strand can not be sucked by the adjacent nozzle and also clog this nozzle or lead to thickening of the yarn produced with this nozzle.
- this may have a tip which is in the gusset between the rollers of the
- Separating projection are brought close to both rollers of the pair of output rollers, which improves its separating effect.
- a further optimization of the separation function of the projection can be achieved in that the flanks of the tip at least
- the at least one separation projection may preferably be attached to a
- Housing be arranged for the swirl nozzles. There he can be easily attached and adjusted with respect to the output roller pair of the drafting system. It can also be formed integrally with the housing for the swirl nozzles. In a preferred embodiment of the
- a sheet metal part which can be prepared for example by punching and arranged in the middle between two nozzles.
- Fig. 2 is an enlarged side view of the drafting device
- Fig. 3 is a perspective view from above of the nozzle unit and the pair of output rollers of the drafting device of Fig. 1; - -
- Fig. 4 is a perspective single view of the nozzle unit of
- the drafting device 10 has, according to FIG. 1, a drafting system 11 and a nozzle unit 12.
- the drafting system 11 is in the example shown, a three-cylinder drafting system with an input roller pair 13, a Doppelriemchenwalzencru 14 and a pair of output rollers 15 between the upper and lower rollers of the roller pairs 13, 14 and 15 are parallel two fiber strands (not shown) stretched and the nozzle unit 12th fed.
- the nozzle unit 12 the
- Fiber strands provided with a false twist and fed via pipes 16, 17 knitting needles 18 a knitting machine, not shown.
- the nozzle unit has two swirl nozzles 19, 20, between which a separation projection 21 is arranged on a housing 22 for the swirl nozzles 19, 20.
- Fig. 2 illustrates that the separation projection 21 has a tip 23 whose flanks 24, 25 are curved according to the cylindrical surface of the two rollers 15.1 and 15.2 of the pair of output rollers 15. This results in a uniform distance between the
- Trennvorsprung 21 can thereby be the conveying paths of the two
- Fiber strands optimally unfold the separating effect.
- the fiber strands can not be sucked by the adjacent swirl nozzle 19, 20.
- the housing 22 designed plate-shaped and arranged in the middle between the swirl nozzles 19, 20 on the housing 22. It may preferably be a sheet metal part, which is attachable to the housing 22 by gluing, welding or soldering.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Knitting Machines (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013104993.1A DE102013104993A1 (en) | 2013-05-15 | 2013-05-15 | Delaying device for spinning-knitting machines |
| PCT/EP2014/057362 WO2014183935A1 (en) | 2013-05-15 | 2014-04-11 | Drafting device for spinning-knitting machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2997184A1 true EP2997184A1 (en) | 2016-03-23 |
Family
ID=50478408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14716588.0A Withdrawn EP2997184A1 (en) | 2013-05-15 | 2014-04-11 | Drafting device for spinning-knitting machines |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10000866B2 (en) |
| EP (1) | EP2997184A1 (en) |
| JP (1) | JP6373976B2 (en) |
| CN (1) | CN105378162A (en) |
| BR (1) | BR112015027329A2 (en) |
| DE (1) | DE102013104993A1 (en) |
| TW (1) | TWI607123B (en) |
| WO (1) | WO2014183935A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01156519A (en) * | 1987-12-14 | 1989-06-20 | Murata Mach Ltd | Spinning method and apparatus therefor |
| JPH0653979B2 (en) * | 1988-08-09 | 1994-07-20 | 村田機械株式会社 | Yarn manufacturing method |
| CH684515B5 (en) * | 1988-10-26 | 1995-04-13 | Murata Machinery Ltd | A process for producing a multi-ply spun yarn and a spun yarn fluffy. |
| JPH02229229A (en) * | 1989-03-01 | 1990-09-12 | Murata Mach Ltd | Production of yarn and production unit |
| DE4032117A1 (en) * | 1990-10-10 | 1992-04-16 | Fritz Stahlecker | Pneumatic false twisting spinning station - is a double station with a common drawing unit for the two slivers |
| DE19500036A1 (en) | 1995-01-02 | 1996-07-04 | Rieter Ag Maschf | Ring spinning machine for hank compaction spinning avoiding clumps |
| DE102006062363B4 (en) * | 2006-12-22 | 2021-02-25 | Wilhelm Stahlecker Gmbh | Device for producing a knitted fabric with drafting system |
| DE102006062364B4 (en) | 2006-12-22 | 2019-03-14 | Wilhelm Stahlecker Gmbh | Device for producing a knitted fabric |
| DE102007024233A1 (en) | 2007-05-21 | 2008-11-27 | Wilhelm Stahlecker Gmbh | Fixing component for air nozzles assigned to a textiles drawing arrangement contains a base body with a hollow chamber for guiding compressed air |
| DE112008001937B4 (en) | 2007-08-31 | 2023-02-09 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | draft unit for knitting machine |
-
2013
- 2013-05-15 DE DE102013104993.1A patent/DE102013104993A1/en not_active Withdrawn
-
2014
- 2014-04-11 EP EP14716588.0A patent/EP2997184A1/en not_active Withdrawn
- 2014-04-11 JP JP2016513261A patent/JP6373976B2/en not_active Expired - Fee Related
- 2014-04-11 CN CN201480028143.1A patent/CN105378162A/en active Pending
- 2014-04-11 WO PCT/EP2014/057362 patent/WO2014183935A1/en not_active Ceased
- 2014-04-11 BR BR112015027329A patent/BR112015027329A2/en not_active IP Right Cessation
- 2014-04-11 US US14/889,964 patent/US10000866B2/en not_active Expired - Fee Related
- 2014-04-21 TW TW103114388A patent/TWI607123B/en not_active IP Right Cessation
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2014183935A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201512480A (en) | 2015-04-01 |
| JP2016521322A (en) | 2016-07-21 |
| WO2014183935A1 (en) | 2014-11-20 |
| US10000866B2 (en) | 2018-06-19 |
| TWI607123B (en) | 2017-12-01 |
| BR112015027329A2 (en) | 2017-08-22 |
| US20160168762A1 (en) | 2016-06-16 |
| JP6373976B2 (en) | 2018-08-15 |
| CN105378162A (en) | 2016-03-02 |
| DE102013104993A1 (en) | 2014-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20151028 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20170713 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20190416 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20190827 |