CN1651621A - Stretching device for spinning machine - Google Patents
Stretching device for spinning machine Download PDFInfo
- Publication number
- CN1651621A CN1651621A CN 200410075746 CN200410075746A CN1651621A CN 1651621 A CN1651621 A CN 1651621A CN 200410075746 CN200410075746 CN 200410075746 CN 200410075746 A CN200410075746 A CN 200410075746A CN 1651621 A CN1651621 A CN 1651621A
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- CN
- China
- Prior art keywords
- roller
- fiber
- compressor reducer
- gap
- drafting system
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- 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.)
- Pending
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- 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
- D01H5/72—Fibre-condensing guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to two press rollers corresponding to the driven feeding roller in the spinning machine drafting system, the press rollers and the feeding roller delivering a couple of tandem sequent jaw yarns. The drafting system is characterized in that: between the two jaw yarns, the fiber strand forms a compressive area through the channel, which is formed through the compressor on the feeding roller; wherein, the gap between the lower side of the compressor and the surface of the feeding roller guide fiber is smaller than the fiber diameter; in addition, a coating layer is arranged on the lower side of the compressor, which is used for sealing the gap.
Description
Technical field
The present invention relates to a kind of drafting system of spinning machine, it has a driven drawing-in roller, this drawing-in roller is to there being two pressure rollers, these pressure rollers and drawing-in roller form two front and back jaw yarns in succession, between these two jaw yarns, fiber strip is by being positioned at compressor reducer on the drawing-in roller, that have the tunnel-shaped constricted zone, this constricted zone has the guiding wall that narrows down gradually along side direction at least, and its bottom is formed by the surface of drawing-in roller guiding fiber, therefore, it has at least one boundary that is gap shape seam between compressor reducer and drawing-in roller.
Background technology
When a drafted fiber strip in the spinning machine the outlet roller of drafting system and then to after when spinning twisting, the jaw yarn place right at outlet roller produced so-called spinning triangle (Spinndreieck).Therefore this make that drafted fiber strip leaves drafting system with certain width, and twists into a yarn that diameter is less relatively.Therefore the spinning triangle has the edge fiber, and this edge fiber is combined in the yarn of twisting disorderly, and seldom helps or the intensity of spun yarn is not had contribution.Therefore people are turning to the stretch zones back that makes drafting system to be provided with a so-called constricted zone recently, and this constricted zone itself is defined at outlet side by a jaw.Yet the twisting of just spinning.In constricted zone, fiber pack or be compressed, consequently, fiber strip is very narrow when leaving last jaw, so that the fearful spinning triangle disadvantageous decisive action that do not recur.Even, the firm and few filoplume of the yarn that is spun.
Different device is come the conpressed fibers yarn by known.Many this devices carry out work by pneumatic.This has such shortcoming: energy consumption is very big.But, today also known such device, this device carries out mechanical compress, can not produce this shortcoming in this device.For example, Switzerland RotorCraft company can provide a kind of such device.According to Pakistani Hans Mr.'s Stahlecker report, the specification applicant of this device is at 2003.09.17 day cicada just.Embodiment that describe, drafting system comprises a drawing-in roller in this specification, and this drawing-in roller is to there being two pressure rollers.Therefore, can realize making constricted zone and stretch zones to separate.Stretch zones ends on the jaw yarn, and this jaw yarn forms by first pressure roller.And then constricted zone afterwards, this constricted zone extend to by till on the formed jaw yarn of second pressure roller.Afterwards, fiber strip is twisted.In constricted zone, fiber strip is by being positioned at compressor reducer on the drawing-in roller, that have the tunnel-shaped constricted zone, and this constricted zone narrows down gradually along the fiber traffic direction.The bottom of tunnel-shaped constricted zone forms by the surface of drawing-in roller itself.Therefore, the passage of compressed fiber strip by sealing all around, this passage comprises the part that two mutual sealing pastes lean on.Promptly the slot ceramic compressor reducer of point-device drawing-in roller and correct grinding of these two parts is so mutually coordinated, so that the boundary of tunnel-shaped constricted zone seam has been closed fully.Just consistent with the radius of drawing-in roller by the radius that makes the compressor reducer downside, the slit height that can realize being formed in the boundary seam is zero.
This known embodiment (the present invention is from this embodiment) has following shortcoming: need very high expense to guarantee that compressor reducer does not have spacing ground to place.The precise radius of drawing-in roller and compressor reducer downside cooperates needs extremely expensive manufacture method.
Summary of the invention
The objective of the invention is to design in one way compressor reducer, reservation function fully, and make obviously simpler.
This purpose realizes by following method: on the whole compressor reducer length that the height in the gap between the surface of compressor reducer and drawing-in roller guiding fiber is being looked along the fiber traffic direction less than the thickness of the single fiber of the fiber strip that will compress.
The present invention is based on such understanding, do not need contact very close to each other.If the gap on whole length less than fiber thickness, so just enough.This has such advantage, allows to have much bigger error when making this part.
Those skilled in the art will know that the size of cotton fiber.Therefore, if this gap is less than 7 microns when handling cotton, it is suitable so.Can produce other advantage by following measure: compressor reducer no longer must be with whole surface bearing on drawing-in roller.If compressor reducer is bearing on one or several few bearing positions on the drawing-in roller, and is so just enough.Therefore allow not have the surface of the compressor reducer that contacts more coarse.
Another kind of scheme is to carry out coating, to save the radially coupling that is difficult to realize.Preferably form this coating by a kind of material, this material is worn and torn by drawing-in roller.Therefore, when break-in, the shape of compressor reducer accurately is suitable for drawing-in roller, and before break-in, existing gap oneself is sealed by it and disappeared.This is impossible in the described in the prior art ceramic compressor reducer, because owing to compressor reducer at first is worn than the hard drawing-in roller that makes of drawing-in roller.
Advantageously, the gap is limited in the zone of guiding wall.Therefore, reduced the pinpoint accuracy zone of compressor reducer downside, and manufacturing has been simplified.Outside in this zone guides the surface and the distance between the compressor reducer of fiber to increase at drawing-in roller.Here, several times fiber thickness helps preventing to stop up fiber attrition material or fiber particle.
Description of drawings
Other advantage of the present invention and feature provide by describing below of several embodiment.
Wherein:
Fig. 1 is the side view of the constricted zone of the zone of drawing-in roller and drafting system;
Fig. 2 is the view of the compressor reducer that intercepted of the cross section I-I along Fig. 1, has wherein saved pressure roller so that diagram is clear;
Fig. 3 shows the zoomed-in view of the area I I of Fig. 1;
Figure 4 and 5 be respectively with Fig. 3 similarly, the view of another program of compressor reducer downside;
The view of a distortion of the compressor reducer that Fig. 6 and Fig. 3 be similar, have coating;
Fig. 7 is along the cross section III-III of Fig. 1 profile that intercepted, the tunnel-shaped constricted zone.
The specific embodiment
The drafting system 1 that just partly illustrates in Fig. 1 belongs to spinning machine, preferably belongs to ring spinner.The zone of the drawing-in roller 2 that drafting system 1 only illustrates is driven, vertically pass through along machine also illustrates the zone of drafting system outlet roller.
Two pressure rollers 3 and 4 flexibly are pressed against on the drawing-in roller 2.Pressure roller 3 and 4 has a fixing distance each other.They and drawing-in roller 2 form two jaw yarns 5 and 6, and the distance of these two jaw yarns should be pulled sample length less than fiber to be spun.
Pressure roller 3 and 4 is combined into twin pressure roller (Druckwalzenzwillingen) with the contiguous corresponding pressure roller that spins the position in known manner.
Be close to the inlet front of the first jaw yarn 5, a pair of belt is corresponding to the drawing-in roller 2 and first pressure roller 3, and this comprises following belt 7 and top belt 8 to belt.With 9 guide table of representing corresponding bottom belt 7.
Treat that the fiber strip of drawing-off or rove (Vorgarn) 10 are transported in the drafting system 1 along fiber traffic direction A for one.Basically a fiber strip 11 of finishing drawing-off is positioned at the back of the first jaw yarn 5, and this fiber strip 11 is compressed in the constricted zone 12 of channel shape.The edge fiber should rest on the fiber strip 11.Leave the second jaw yarn 6, produce yarn 13, this yarn 13 is transported to along direction of the supply B in the twisting mechanism that does not illustrate, and for example is directed in the RING SPINNING hammer, and this RING SPINNING hammer makes yarn 13 have the needed spinning twist.
Described passage shape constricted zone 12 forms with compressor reducer 14 as the surface 16 of the drawing-in roller 2 guiding fibers of bottom by having guiding wall 15.The surface 16 of guiding fiber is the outer circumferential surface of drawing-in roller 2, so invariably, and the fluting that has in the drawing-in roller 2 interrupts guiding the surface 16 of fiber by its groove 17.
In Fig. 2, can see guiding wall 15, in this Fig. 2, illustrated do not have pressure roller 3 and 4, along the cross section of planar I-I.They so are shaped, so that the width of tunnel-shaped constricted zone 12 narrows down gradually along fiber traffic direction A.Reduce gradually up to the second jaw yarn 6 at tunnel-shaped constricted zone 12 at width jaw yarn 5 places, drawn fiber yarn 11.Here, conpressed fibers yarn 11 is clamped, so that when twisting, can not produce bigger spinning triangle.That can obtain wishing, higher matter utilization, the filoplume that this can improve the breaking strength of yarn 13 and reduce yarn 13.
Fig. 3 to 5 shows the area I I of the amplification of Fig. 1.It shows tunnel-shaped constricted zone 12 and 2 formed by compressor reducer 14 and drawing-in roller, as to have height s gap 18, wherein is respectively a kind of other distortion in gap 18.Fig. 3 shows an embodiment, and in this embodiment, the radius of the downside 19 of compressor reducer 14 is less than the radius of drawing-in roller 2. Bearing position 20 and 21 have been produced here.According to the present invention, radius is so selected, so that the clearance height s in gap 18 is no more than the thickness d of the single fiber 22 of fiber strip to be compressed 11.If drawing-in roller 2 has groove 17, the height s in gap 18 is restricted to the height above the surface 16 of the guiding fiber that is positioned at drawing-in roller 2 so.The thickness d of single fiber 22 is diameters of a cylindrical fibre.In non-circular fiber, d represents the minimum thickness of cross section.
Figure 4 illustrates a kind of distortion, in this distortion, the radius of the downside 19 of compressor reducer 14 is greater than the radius of drawing-in roller 2.In this case, produced bearing position 23, and gap 18 is to be positioned at its front and back respectively.Can observe, when compressor reducer 14 is not guided when mobile in addition, it can tilt around bearing position 23, and the height s in gap 18 changes.According to the present invention, be at compressor reducer 14 under the situation of inclination and must guarantee, the height s in big gap 18 is less than the thickness d of single fiber 22.
Fig. 5 shows the distortion of embodiment shown in Figure 3, and in this distortion, downside 19 be can't help continuous radius and formed, but comprises the section of straight yarn shape.Bearing position 20 and 21 have for example been produced here.The distance of the peak of compressor reducer 14 downsides 19 from the surface 16 of drawing-in roller 2 guiding fibers limits the height s in gap, and this highly equally must be less than the thickness d of single fiber 22.
Distortion shown in Figure 6, compressor reducer 14 shows the coating 25 on the downside 19.When coating 25 is softer than drawing-in roller 2 surperficial, be favourable.The geometry of coating under new state has less important meaning.A kind of possible shape is drawn yarn 24 by two point and is represented.After compressor reducer 14 was packed into, As time goes on coating 24 was fallen by abrasion gradually, up to compressor reducer 14 till contacting and be supported on the drawing-in roller 2 with its stock on the bearing position 20 and 21.Be positioned at zones more eminence and that form the gap usually, these downsides 19 and still be filled with coating material 25 now.Therefore coating 25 is not used in supporting compressor reducer 14, but also makes, the clearance height between the plane 16 of compressor reducer 14 and drawing-in roller 2 guiding fibers is approximately 0.The downside 19 of the compressor reducer 14 among Fig. 6 for example forms irregularly shaped.This is not absolute demand, and it is good too that downside 19 has one of shape shown in Fig. 3-5.
Fig. 7 shows the view that is intercepted along the cross section III-III of Fig. 1.Here, gap 18 is limited on the zone of guiding wall 15.The remaining area of compressor reducer 14 downsides 19-along look perpendicular to the direction of fiber traffic direction-formed a cavity 26 with the plane 16 of drawing-in roller 2 guiding fibers, the height f of this cavity 26 is several times of fiber thickness d.This embodiment can prevent in the perimeter of fiber particle attached to compressor reducer.
Claims (6)
1. the drafting system of spinning machine (1), it has a driven drawing-in roller (2), this drawing-in roller is to there being two pressure rollers (3,4), these pressure rollers and drawing-in roller (2) form two front and back jaw yarns (5 in succession, 6), between these two jaw yarns, fiber strip (11) is positioned on the drawing-in roller (2) by one, compressor reducer (14) with tunnel-shaped constricted zone (12), this constricted zone has the guiding wall (15) that narrows down gradually along side direction at least, and the bottom of constricted zone is formed by a surface (16) of drawing-in roller (2) guiding fiber, therefore, constricted zone has at least one boundary that is a gap (18) shape seam between compressor reducer (14) and drawing-in roller (2), it is characterized in that, be positioned at the height (s) in gap (18) between the surface (16) of compressor reducer (14) and drawing-in roller (2) guiding fiber thickness (d) on the whole length of the compressor reducer (14) of looking less than the single fiber (22) of the fiber strip that will compress (11) along fiber traffic direction (A).
2. drafting system as claimed in claim 1, it is characterized in that, when processing contains the fiber of cotton, be positioned at compressor reducer (14) and drawing-in roller (2) guiding fiber surface (16) between gap (18) on the whole length of the compressor reducer (14) of looking along fiber traffic direction (A) less than 7 microns.
3. as claim 1 or 2 described drafting systems, it is characterized in that compressor reducer (14) is positioned at least one predetermined bearing position (20,21,23) on the drawing-in roller (2).
4. as the arbitrary described drafting system of claim 1-3, tool is characterised in that the downside (19) of compressor reducer (14) is sent out and is equipped with a coating that is used to seal (25).
5. as the arbitrary described drafting system of claim 1-4, it is characterized in that, gap (18)-along looking-only be arranged in the zone of guiding wall (15) perpendicular to the direction of fiber traffic direction (A).
6. drafting system as claimed in claim 5, it is characterized in that, outside in guiding wall (15) zone, the downside (19) of compressor reducer (14) forms a cavity (26) with the surface (16) of drawing-in roller (2) guiding fiber, and the height of this cavity (f) surpasses the thickness (d) of single fiber (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003156913 DE10356913A1 (en) | 2003-12-02 | 2003-12-02 | Drafting system for spinning with mechanical sliver compaction includes gap smaller than fiber thickness between sliver guide and delivery roller |
| DE10356913.8 | 2003-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1651621A true CN1651621A (en) | 2005-08-10 |
Family
ID=34638400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410075746 Pending CN1651621A (en) | 2003-12-02 | 2004-12-02 | Stretching device for spinning machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1651621A (en) |
| CH (1) | CH697094A5 (en) |
| DE (1) | DE10356913A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050568B (en) * | 2006-04-03 | 2010-09-29 | 工业控股股份公司 | Drawing device |
| CN102037170B (en) * | 2008-04-24 | 2013-10-30 | 叙森芯轴制造厂有限责任公司 | Compressor unit for drawing frame of textile machine |
| CN105705691A (en) * | 2013-10-01 | 2016-06-22 | 特吕茨施勒有限及两合公司 | Lap machine and method for producing a lap from slivers |
| CN111479961A (en) * | 2017-12-15 | 2020-07-31 | 里特机械公司 | Drafting device for spinning machine with condensing mechanism and method for condensing fiber bundle |
| CN111979618A (en) * | 2019-05-22 | 2020-11-24 | 里特机械公司 | Compressor unit for a drafting device of a textile machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007049337A1 (en) * | 2007-10-12 | 2009-04-16 | Wilhelm Stahlecker Gmbh | Drafting system for warping a fiber structure |
-
2003
- 2003-12-02 DE DE2003156913 patent/DE10356913A1/en not_active Withdrawn
-
2004
- 2004-11-12 CH CH18652004A patent/CH697094A5/en not_active IP Right Cessation
- 2004-12-02 CN CN 200410075746 patent/CN1651621A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050568B (en) * | 2006-04-03 | 2010-09-29 | 工业控股股份公司 | Drawing device |
| CN102037170B (en) * | 2008-04-24 | 2013-10-30 | 叙森芯轴制造厂有限责任公司 | Compressor unit for drawing frame of textile machine |
| CN102016142B (en) * | 2008-04-24 | 2014-03-12 | 叙森芯轴制造厂有限责任公司 | Compressor unit for drawing frame of textile machine |
| CN105705691A (en) * | 2013-10-01 | 2016-06-22 | 特吕茨施勒有限及两合公司 | Lap machine and method for producing a lap from slivers |
| CN105705691B (en) * | 2013-10-01 | 2017-12-15 | 特吕茨施勒有限及两合公司 | For manufacturing the volume cotton machine and method of lap by fiber band |
| CN111479961A (en) * | 2017-12-15 | 2020-07-31 | 里特机械公司 | Drafting device for spinning machine with condensing mechanism and method for condensing fiber bundle |
| CN111479961B (en) * | 2017-12-15 | 2023-02-03 | 里特机械公司 | Drafting device for spinning machine with condensing mechanism and method for condensing fiber bundle |
| CN111979618A (en) * | 2019-05-22 | 2020-11-24 | 里特机械公司 | Compressor unit for a drafting device of a textile machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CH697094A5 (en) | 2008-04-30 |
| DE10356913A1 (en) | 2005-07-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |