WO2014170087A1 - Drawing system for a knitting machine - Google Patents
Drawing system for a knitting machine Download PDFInfo
- Publication number
- WO2014170087A1 WO2014170087A1 PCT/EP2014/055692 EP2014055692W WO2014170087A1 WO 2014170087 A1 WO2014170087 A1 WO 2014170087A1 EP 2014055692 W EP2014055692 W EP 2014055692W WO 2014170087 A1 WO2014170087 A1 WO 2014170087A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base plate
- rollers
- roller
- roller pair
- suction
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/48—Thread-feeding devices
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
- D01H5/66—Suction devices exclusively
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
-
- 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 system for a knitting machine for
- Output pressure roller pair each having an upper pressure roller and an electric motor driven lower roller and the rollers are arranged on the front side of a base plate, while their axes are passed through the base plate and the drive means for the lower rollers are at least partially disposed on the back of the base plate.
- Such a drafting system is already known from WO 2010/028513 AI. It serves to produce a distorted fiber structure from a roving and to supply it directly to the needles of the knitting machine. In these combined spinning-knitting machines is therefore on the
- knitted fabrics also have a softer surface than those made from a twisted yarn
- Knitted pieces The drafting systems of these spinning-knitting machines are like the drafting of spinning machines exposed to fiber fly, which can lead to contamination and malfunction.
- fibers or abrasion may accumulate in the nip between the rolls resting on the base plate and the base plate and lead to disturbances in the operation of the drafting system.
- the back of the base plate is hermetically covered with a housing and there introduced compressed air, which is passed through holes in the base plate to the gap between the lower rollers and the front of the base plate. The compressed air is thus able to blow out the fibers located in the gap, so that they can not settle. However, the blown-off fibers can then settle on other machine parts.
- EP 0 532 457 A1 describes a drafting system for spinning machines, in which the pairs of rollers are mounted in a floating manner on a closed drive housing.
- the drafting rollers are covered by a housing open on the feed side of the roving.
- compressed air is introduced, which can flow through provided for the storage of the roller shafts in the drive housing openings to the drafting rollers in the open housing.
- a suction is arranged, which is connected via a hose connection with the open housing.
- this suction is severely limited in its effect, since the hose connection opens at a location far from the drafting rollers in the open housing.
- the design of this drafting system is very large, so this drafting system can not be used in spinning-knitting machines.
- the object of the present invention is to provide a drafting system for
- the problem is solved by a drafting system for a knitting machine for producing a fiber structure from a roving with over
- Output pressure roller pair wherein the Riemchenwalzencru and the complicat horrwalzencru each having an upper pressure roller and an electric motor driven lower roller and the rollers are arranged on the front side of a base plate, while their axes are passed through the base plate and the drive means for the lower rollers at least partially on the back of the base plate are arranged, which is characterized in that on the top roller of the output pressure roller pair and the top roller of the
- Riemchenwalzencrues is arranged over both upper rollers extending suction. It may also be provided an input pressure roller pair.
- the drafting device according to the invention dispenses with a
- Drawframe rollers at least partially covering housing and instead uses a suction targeted near the place of origin for the fiber fly, in the area of the two drafting the top closest to the top rollers.
- the suction extends over both rollers.
- One of the top rollers is a Riemchenwalze.
- the suction also serves to clean the straps. Also from outside penetrating dust can be reliably removed with the suction from the drafting system.
- Enclosure encapsulation of the drafting rollers are these always for maintenance and to control the distortion of the fiber structure freely accessible.
- the required installation space for the drafting system is low, so that it can be easily used for spinning-knitting machines.
- the mode of action of the suction can be further optimized by the suction at least partially covers at least the output top roller at its free end.
- the suction is thereby concentrated even more on the rollers.
- the partial lateral cover of the top roller prevents leakage of loose fibers and lint to the side.
- Base plate be at least partially hermetically covered by a housing cover, which is provided with at least one supply port for compressed air, and the base plate through-openings for the compressed air.
- This air can be passed from the drafting device rear side and through the openings in the base plate to the drafting rollers and reliably prevent the setting of abrasion, lint or dust in cooperation with the suction.
- the passage openings are formed in the base plate of the axial holes for the axes of the top rollers, through which the Oberwaizenachsen are passed with play.
- the compressed air passes directly into the narrow gap between the roller bodies of the top rollers and the base plate and from above into the corresponding gap between the lower roller bodies and the base plate and can therefore reliably from
- the output roller pair can be arranged downstream of at least one nozzle for receiving the stretched fiber structure, with the
- Fiber Association can be offset a twist.
- Figure 1 is a view of the front of the drafting system.
- Fig. 2 is an enlarged detail view of the drafting system of Fig. 1;
- Fig. 3 is a sectional view of the drafting rollers and the
- Fig. 4 is a perspective view of the drafting system of Fig. 1;
- Fig. 5 is a detailed view of the lower rollers and the
- Fig. 6 is an enlarged detail of a top roller axis
- the drafting system 10 of FIG. 1 has a base plate 11, on the front side 11.1 of which an input pressure roller pair 12, 13, a
- roller pairs 12, 13, 14, 15, 16, 17 warped to a fiber structure.
- a nozzle 18 At the output of the pair of output rollers 16,17 a nozzle 18 is arranged with a transport tube 19, which forward the fiber structure to a knitting machine, also not shown here, preferably a circular knitting machine.
- an extraction 20 is disposed on the front side 11.1 of the base plate 11, which extends over the top rollers 17 and 15 of the pair of output rollers 16, 17 and the output side
- the suction 20 is also arranged such that when a blockage of the nozzle 18 of the produced fiber strand can be reliably sucked from the suction 20.
- a lower part 20.1 of the suction 20 directly adjoins the nozzle 18 for this purpose.
- Fig. 4 shows the back of the base plate 11 which is completely covered by a housing cover 21.
- the housing cover 21 is a
- Supply port 22 arranged for compressed air.
- this compressed air flows from the rear side of the base plate 11 to its front side 11
- Fig. 6 illustrates in the enlarged view, the circular through hole 23 for the axis 26 of the output upper roller 17.
- the axis 26 is like the other axes 24 and 25 with clearance passed through the associated through hole 23 so that the
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Knitting Machines (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/782,426 US20160024696A1 (en) | 2013-04-15 | 2014-03-21 | Drawing equipment for a knitting machine |
EP14714622.9A EP2986765B1 (en) | 2013-04-15 | 2014-03-21 | Drawing system for a knitting machine |
CN201480021335.XA CN105324523A (en) | 2013-04-15 | 2014-03-21 | Drawing system for a knitting machine |
JP2016506834A JP6383781B2 (en) | 2013-04-15 | 2014-03-21 | Drawing machine for knitting machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013103738.0 | 2013-04-15 | ||
DE102013103738.0A DE102013103738A1 (en) | 2013-04-15 | 2013-04-15 | Drafting system for a knitting machine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014170087A1 true WO2014170087A1 (en) | 2014-10-23 |
Family
ID=50424203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/055692 WO2014170087A1 (en) | 2013-04-15 | 2014-03-21 | Drawing system for a knitting machine |
Country Status (7)
Country | Link |
---|---|
US (1) | US20160024696A1 (en) |
EP (1) | EP2986765B1 (en) |
JP (1) | JP6383781B2 (en) |
CN (1) | CN105324523A (en) |
DE (1) | DE102013103738A1 (en) |
TW (1) | TWI654348B (en) |
WO (1) | WO2014170087A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017202085A1 (en) | 2017-02-09 | 2018-08-09 | Tom Hanrath | Conveying device for supplying a yarn processing machine, in particular a spinning knitting machine and production device comprising such and method for supplying a yarn processing machine using such |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0532457A1 (en) | 1991-09-12 | 1993-03-17 | Maschinenfabrik Rieter Ag | Textile machine with so-called fly producing working units |
DE102006037716A1 (en) * | 2006-08-07 | 2008-02-14 | Wilhelm Stahlecker Gmbh | Textile knitting machine has drafting stations preceding knitting station with two or more flyer slivers |
WO2010028513A1 (en) | 2008-09-09 | 2010-03-18 | Rotorcraft Ag | Drawing system for a knitting machine |
CH700380A2 (en) * | 2009-02-13 | 2010-08-13 | Rotocraft Ag | Circular knitting machine with integrated drafting. |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR969199A (en) * | 1947-08-26 | 1950-12-15 | Rieter Joh Jacob & Cie Ag | Process ensuring the cleanliness of textile looms |
US5546768A (en) * | 1995-10-06 | 1996-08-20 | Mayer Industries, Inc. | Circular sliver knitting machine having a manifold for controlling multidirectional airflow |
WO2004079068A2 (en) * | 2003-03-06 | 2004-09-16 | Koenig Reinhard | Knitted fabric, method and device for producing said fabric |
DE102006006502B4 (en) * | 2006-02-13 | 2018-03-08 | Reinhard König | Spin knitting machine |
WO2008067804A1 (en) * | 2006-12-03 | 2008-06-12 | Koenig Reinhard | Circular knitting machine for producing knitted fabrics using untwisted fibrous material |
DE102007004441A1 (en) * | 2007-01-25 | 2008-07-31 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Machine for producing a knitwear made of fibrous material, in particular a knitting machine |
DE102007027467A1 (en) * | 2007-06-14 | 2008-12-18 | König, Reinhard, Dr. Ing. | Machine for spinning and knitting and a process |
DE102007041171A1 (en) * | 2007-08-28 | 2009-03-05 | Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh | Method and knitting machine for producing a knitted fabric from substantially untwisted fiber material |
DE102011053396B3 (en) * | 2011-09-08 | 2012-08-23 | Terrot Gmbh | Knitted fabric producing device for use with knitting machine, has pinch rollers are rotatable in opposite direction, so as to withdraw solidified silver roving from spinning nozzle device to knitting machine |
-
2013
- 2013-04-15 DE DE102013103738.0A patent/DE102013103738A1/en not_active Withdrawn
-
2014
- 2014-03-17 TW TW103109901A patent/TWI654348B/en not_active IP Right Cessation
- 2014-03-21 EP EP14714622.9A patent/EP2986765B1/en not_active Not-in-force
- 2014-03-21 JP JP2016506834A patent/JP6383781B2/en not_active Expired - Fee Related
- 2014-03-21 WO PCT/EP2014/055692 patent/WO2014170087A1/en active Application Filing
- 2014-03-21 CN CN201480021335.XA patent/CN105324523A/en active Pending
- 2014-03-21 US US14/782,426 patent/US20160024696A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0532457A1 (en) | 1991-09-12 | 1993-03-17 | Maschinenfabrik Rieter Ag | Textile machine with so-called fly producing working units |
DE102006037716A1 (en) * | 2006-08-07 | 2008-02-14 | Wilhelm Stahlecker Gmbh | Textile knitting machine has drafting stations preceding knitting station with two or more flyer slivers |
WO2010028513A1 (en) | 2008-09-09 | 2010-03-18 | Rotorcraft Ag | Drawing system for a knitting machine |
CH700380A2 (en) * | 2009-02-13 | 2010-08-13 | Rotocraft Ag | Circular knitting machine with integrated drafting. |
Also Published As
Publication number | Publication date |
---|---|
JP2016519224A (en) | 2016-06-30 |
US20160024696A1 (en) | 2016-01-28 |
EP2986765B1 (en) | 2018-02-14 |
EP2986765A1 (en) | 2016-02-24 |
JP6383781B2 (en) | 2018-08-29 |
DE102013103738A1 (en) | 2014-10-16 |
TW201510300A (en) | 2015-03-16 |
CN105324523A (en) | 2016-02-10 |
TWI654348B (en) | 2019-03-21 |
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