CN104695067B

CN104695067B - Sieve band

Info

Publication number: CN104695067B
Application number: CN201410734263.5A
Authority: CN
Inventors: P·布兰肯霍恩
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2013-12-05
Filing date: 2014-12-04
Publication date: 2018-08-24
Anticipated expiration: 2034-12-04
Also published as: EP2881501A1; EP2881500B1; CN104695067A; EP2881500A1; CN104695068A; BR102014029546A2; CN104695068B; IN2014DE03385A; IN2014DE03384A; EP2881501B1

Abstract

The present invention relates to a kind of sieve bands of the compression set for spinning machine, the sieve band has the fabric being made of interlaced a plurality of long filament (10), and at least there are multiple scope of freedoms (5) between a plurality of long filament (10) in the fiber transport region (F) of sieve band (1), so that inspiratory flow (S) can influence to take the fibre bundle (3) of movement in sieve.The edge of the surface of the contact of the fabric fibre bundle (3) the multiple infalls being driven plain and a plurality of long filament (10) and/or multiple spherings of multiple scope of freedoms (5) with a plurality of long filament (10) at least in fiber transport region (F), so that compared to the infall not being driven plain and the edge not being rounded, fibre bundle (3) can more easily move on the surface of sieve band (1).

Description

Sieve band

Technical field

The present invention relates to a kind of sieve bands.

Background technology

The sieve band (Siebriemchen) of compression set for spinning machine has to be knitted by what interlaced long filament formed Object, and it at least is provided with the scope of freedom in the fiber transport region of sieve band, it lives on it so that inspiratory flow can act on On dynamic fibre bundle.

Sieve band is the basic building block of compression set on compact spinning machine or compression spinning machine.There are exit rollers in traditional To rolling device run after, the fibre bundle that is compressed after leaving is received by sieve band in exit rollers and in the band that sieves of driving It is transmitted under help and crosses static air entry.Negative pressure acts on fibre bundle across the air entry and is compressed into fibre bundle Compact object.The fiber of standing sticks on fibre bundle.Because air entry is usually tilted to the direction of motion of sieve band, fine Dimension beam is forced in laterally opposed movement on the surface of sieve band.The fibre bundle rolls in this movement --- and there are false twistings.Therefore Additional mechanical compression is also achieved other than purely pneumatic compression.

Band is sieved in compression process avoids sucking fiber and by fiber with by air entry.Such as by carrying rubber The upper roller driving sieve band of set, the upper roller will sieve band and compressed to the surface of compression set or to air intake duct and therefore by pressure roller Rotary motion is converted into the rotary motion of sieve band.By will sieve band be pressed on static compression set sieve band on bottom surface by Abrasion, during most of use the abrasion determine sieve band service life.

In order to realize that sieve band is uniformly turned round around the compression set, in addition it remains desirable that sieving knitting for band made of long filament There is object certain movement speed, the movement speed to be determined by the bending strength and tensile strength of long filament and the connection of fabric. If the movement speed of the sieve band is inadequate, pass through the friction between the sieve band swung on the width of sieve band and compression set Fabric will be pushed, the sidewayts running for leading to fabric is even formed fold by this.

First abrasion is also can result on the surface of sieve band when processing albert lays material or manufactures covering yarn.Because fine Dimension was both sandwiched between the exit rollers pair of rolling device, was also crushed on the activation point of sieve band, so small in peripheral speed Deviation can also cause fiber sieve band surface on longitudinal sliding motion, this make sieve band be worn.

Fabric structure is energy requirement on the other hand.Measurement provides, at the identical scope of freedom in the feelings of coarse cloth Smaller in the case of the thin fabric of pressure loss ratio under condition.The increased local action of air stream seems in the case of coarse cloth Nor disadvantage.Therefore in order to realize that compression set efficiency as well as possible should use thick fabric as possible.

Can say in summary, according to existing experience about sieve band fineness there are two inconsistent requirements：

In order to realize that the yarn quality as well as possible sieve band should be as thin as possible and therefore the diameter of long filament should to the greatest extent can It can be small.

In order to realize the service life as long as possible and in order to realize movement speed as well as possible and efficiency as well as possible The sieve band should be as thick as possible and therefore the diameter of long filament should be as big as possible.

Invention content

Therefore the task of the present invention is can be with sieve as wear-resisting as possible with realization yarn quality as well as possible.

The task is solved by sieve according to the present invention band.

Sieve band according to the present invention is for spinning machine, in particular compresses the compression set of spinning machine or compact spinning machine and set It sets.The sieve band has the fabric being made of interlaced a plurality of long filament, especially a plurality of mono filament.The sieve band is set in this way It sets so that fibre bundle can be received by sieve band and can be transferred to fibre together with sieve band in the fiber transport region of sieve band Tie up the place of delivery (Abgabestelle) of beam.The fiber transport region is the region being laterally arranged with the transmission direction of sieve band, Middle fibre bundle takes to coming the sieve from the output end roller of preposition rolling device and is received and is output to place of delivery again, Or in other words the fiber transport region is such region, fibre bundle is existed by the axial lateral relative motion with sieve band The sieve take by region.Therefore the fiber transport region is not only limited by the carriage movement of fibre bundle.Because of fibre bundle The relative motion with the direction of motion transverse direction of the sieve band is generally also carried out, therefore fiber transport region is also limited by its width.It is fine The boundary of the dimension common side in transit domain is obtained by air entry, which is disposed in air intake duct of the sieve with lower section In.

The sieve band has the scope of freedom between a plurality of long filament.According to the freedom of the definition of advantageous embodiment at least 10% It is perforated in face.It means that at least 10% sieve band is to acting on the inspiratory flow under sieve band in fiber transport region Gas.The remaining face of the sieve band is made of a plurality of long filament of fabric and is not intended to suck the fibre bundle that movement is taken in sieve, and It is the fiber for stopping fibre bundle, therefore it is not inhaled into air entry.

Or the air entry is parallel to the direction of motion arrangement of sieve band or is in tilted layout into air intake duct at this.Usually The air intake duct is used for sending sieve band and the relative contact of the driven roller as diaphragm band.In addition the sieve band is typically that nothing connects Head.That is, the sieve band forms ring, which is laid with around guide rail or air intake duct and is transferred to the fibre bundle come always.

According to the present invention, the surface for contacting the fabric of the fibre bundle at least has the quilt of a plurality of long filament in fiber transport direction The edge of the multiple infalls and a plurality of long filament and/or multiple spherings on multiple scope of freedoms that flatten.It is typically found in fabric The protrusion of the infall of a plurality of long filament is driven plain in the embodiment of sieve band according to the present invention.Therefore different from multiple The long filament or the infall fibre bundle different from not being driven plain in the range of infall with the surface of circle are able to more easily exist It sieves and is moved on the surface of band.Thus it is also enabled to especially by the edge of a plurality of long filament and/or the sphering on multiple scope of freedom It is the relative motion resistance smaller being transversely formed with the direction of motion of sieve band.Therefore better yarn can be obtained and mitigated in addition The abrasion of sieve band.

In an especially advantageous embodiment of the invention, multiple infalls for a plurality of long filament being driven plain and a plurality of The edge of long filament and/or multiple spherings on multiple scope of freedoms is only arranged on the top surface of sieve band.Therefore especially to knot structure band Carry out favorable influence.Therefore alternative solution can also be that pressure is not only arranged on the top surface of sieve band but also on the bottom surface of sieve band The edge of the multiple infalls and a plurality of long filament and/or the sphering on multiple scope of freedoms of flat a plurality of long filament.Pass through this set Especially advantageous influence can be brought on the abrasion for sieving band.

It is particularly advantageous that when the top and bottom for sieving band are differently flattened or when sphering.Therefore it disclosure satisfy that sieve band Two sides respectively different requirement.The sieve band is in bottom surface especially by rubbing at the bearing for resisting sieve band and at revolution.Cause This results in relatively large abrasion related to this.In contrast the top surface of the sieve band allow for particularly well on it The fiber one of movement and transmission works.It therefore can be advantageously, the bottom surface of the sieve band has the top surface than sieve band slighter Multiple infalls that ground is driven plain.If necessary a plurality of long filament and/or the edge on multiple scope of freedoms are in the bottom surface of sieve band It or is not smaller rounded, because being not in there transverse movement, and only at the bearing of sieve band and at revolution It is upper to there is bearing and therefore there is face contact.

The multiple infalls of preferably new sieve band being driven plain form the load-bearing ratio more than 10%.It means that fine Dimension sticks on the face of the sieve band more than 10% or area of the sieve band more than 10% is laid flat in its bottom surface, for example in air-breathing Guan Shang.Therefore surface pressure is reduced at the bearing of the sieve band on air intake duct and at revolution, this has the abrasion for sieving band Positive effect.

If sieving the load-bearing ratio on the top surface of band higher than the bottom surface for sieving band or if sieving the load-bearing ratio on the bottom surface of band Rate is less than the top surface of sieve band, then obtaining the optimised surface of friction coefficient in an advantageous manner.Due to contact surface smaller, lose Friction under conditions of adhesive force is lowered.

The multiple intersections being at least driven plain in fiber transport region in an especially preferred embodiment of sieve band The ratio that the summation and the gross area of the area at place subtract the difference on the scope of freedom is between 0.1 and 0.8.The multiple infalls being driven plain Multiple faces are formed, fiber contacts sieve band or sieve band and collective effect at bearing and at revolution on the face.Wherein it is driven plain The summation in the face of infall separates from sieve band or fiber transport region by total face in the either fiber transport region of sieve band The gross area in deduct sieve band or fiber transport region the scope of freedom.The value of the coefficient is 0.1 to 0.8.Especially at one Especially in the bearing on air intake duct, the value is about 0.2 to 0.3 in advantageous embodiment.On the contrary when the value is more than 0.3, The fiber of elasticity is advantageous.

When sieve band fiber transport region in be arranged a plurality of long filament being driven plain multiple infalls and a plurality of long filament and/ Or the edge of the sphering on multiple scope of freedoms can also be advantageous sieve band, work as quilt when being important to the effect of yarn quality The multiple infalls and the edge of a plurality of long filament and/or the sphering on multiple scope of freedoms of a plurality of long filament flattened are not only provided at sieve band Fiber transport region in and also be additionally arranged at sieve band borderline region in when.The surface for occurring a plurality of long filament wherein herein exists The region that multiple infalls are not driven plain and the region being wherein driven plain.Flat-top on the top and bottom also can be different Ground is arranged or is integrally abandoned in some regions.Certainly complete sieve band can only be on top surface or more on the top and bottom It is a that a plurality of long filament being driven plain is provided in infall.In all cases all importantly, a plurality of long filament being driven plain it is more A infall and the edge of a plurality of long filament and/or the sphering on multiple scope of freedoms are in leading to the direction of fibre bundle or for sieve band The direction of the bearing surface of rail, that is, the surface towards the sieve band towards fibre bundle, to realize corresponding effect.In addition there are flat Top, in multiple long filaments of the inside of tissue layer towards adjacent fabric, therefore it is strictly harmless, wherein to movement, outstanding It is that the effect of the relative motion of fibre bundle or the effect of the abrasion to sieving band even reduce.

In the especially advantageous embodiment of the present invention, the surface for sieving band at least passes through in fiber transport region The processing of processing is either driven plain or rolls by means of roller particularly by polishing.Wherein it is initially provided with knitting for circular surfaces The a plurality of long filament of object is removed in the range of multiple infalls, therefore the surface being driven plain occurs.

If the surface of a plurality of long filament be at least hot pressed in fiber transport region it is flat, especially by supersonic generator It is driven plain, then therefore being made by heat effect, the cross section of a plurality of long filament is especially changed in the range of multiple infalls And therefore the fabric has the surface being driven plain.It is driven plain by the protrusion of the not only multiple infalls of the heat effect to long filament, And it is also rounded simultaneously.

It in the fabric, is especially used in fiber transport region in another advantageous embodiment of the invention a plurality of Long filament carries decorative pattern.Such long filament is wherein used, was finished in its production process or accordingly before manufacturing fabric Journey its there is not rounded decorative pattern.Wherein the decorative pattern is such, i.e., it has at least one on the cross section of a plurality of long filament A face being driven plain.Then by the way that the fabric with the surface being driven plain can be generated to the corresponding processing of fabric.

The long filament of decorative pattern should preferably be carried with being driven plain, especially elliptoid either oval or basic On be rectangle cross section.Therefore it can be different from circular cross section and generate the cross section being driven plain, in the fabric of sieve band Corresponding use during cause flatten fabric surface and therefore cause sieve band surface on.Wherein about 1 to 2 length Wide ratio, that is, such as about 80x150 μm be advantageous.

The a plurality of long filament has the diameter between 30 μm and 400 μm in the advantageous embodiment of the present invention.Cause This can process thin and thick fibre bundle.In an especially advantageous embodiment long filament have 80 μm with 300 μm it Between diameter.This cross-sectional diameter has reached best compromise between good yarn manufacture and wear-resisting sieve band.

The fabric of sieve band is weaved by the long filament of different-diameter in an especially advantageous embodiment of the invention.Wherein have Profit uses the long filament of different-diameter in warp thread and weft yarn.Thus the size and form difference generated in multiple infalls The multiple infalls being driven plain face.This more particularly to energetically influence fibre bundle sieve band surface on movement.

Preferably the fabric is weaved with 1/1 plain weave or twill-weave.It means that in each infall warp thread and Weft yarn changes face.Equally work as other twill-weaves, such as 1/2 equally can be by use, so sieve the flat of the 1/1 of the fabric of band Line tissue or twill-weave obtain advantage especially associated with the prior artly.

If the fabric has more than 100 μm, preferably more than 180 μm and is less than 2500 μm, preferably less than 1000 μm Sieve pore, then obtain particularly advantageous effect about the air-breathing of fibre bundle and with the mobility of fibre bundle of sieve band transverse direction, And every fiber will not be therefrom precipitated by fabric.

The scope of freedom being inhaled into preferably in fiber transport region accounts for 10% of the sieve band in fiber transport region And between 45%.Therefore sufficiently strong suction is generated on fibre bundle, on the other hand which compresses it takes still in sieve Also allow the relative motion of fibre bundle.

In the preferred embodiment of the present invention, a plurality of long filament is at least in fiber transport region in multiple friendships of fabric It is combined with each other and/or is pressed at fork and/or connected by shape and is connected with each other.Therefore the intensity of additional fabric is produced, It prevents fabric mobile and is therefore responsible for the quality to remain unchanged for a long period of time during compressing fibre bundle.

If the sieve band is at least subjected to coating in multiple infalls of a plurality of long filament, polymer is especially imposed, then Therefore by the scope of freedom sphering of a plurality of long filament and network interface or fabric that are driven plain in a manner of very especially advantageous.Pass through this circle Change, sieves the abrasion of band, the transmission of fibre bundle and fibre bundle and be further optimized with the motility on lateral direction with sieve.Its Floating coat flows and is formed the layer of film-form on multiple infalls between a plurality of long filament.It enables to simultaneously, long filament passes through The coating sticks together and therefore realizes the additional strength of fabric each other.The coating can be before the infall for flattening long filament And/or it is applied in later.

Preferably, long filament be combined with each other or bonds together on the borderline region of sieve band, scatters to avoid sieve band.Therefore Optimize the stability of sieve band.Borderline region is related to such region, in the air entry under the region on fibre bundle Apply outside the region of its suction.The combination or bonding can also be achieved so that without or seldom suction can lead to Sieving band more applies.Sieve band can be closely or almost close in the area.

Description of the drawings

Other advantages of the present invention illustrate in the examples below.Wherein：

Fig. 1 shows the section of thin, the conventional sieve band of the fibre bundle on air entry；

Fig. 2 shows the sections of thick, the conventional sieve band with the fibre bundle on air entry；

Fig. 3 shows the section of the sieve band according to the present invention with the fibre bundle on the air entry of signal；

Fig. 4 shows the schematic diagram of the sieve band according to the present invention on the air intake duct with air entry；

Fig. 5 shows the cross section of the sieve band with the multiple infalls being driven plain on the outer surface of sieve band；

Fig. 6 shows the showing with the multiple infalls being driven plain on the outer surface of sieve band and inner surface according to Fig. 5 It is intended to；

Fig. 7 shows the schematic diagram according to Fig. 5 with the coating on external multiple infalls；

Fig. 8 shows the diagram according to Fig. 6 with the coating on multiple crosspoints externally and internally；

Fig. 9 shows the edge of the sphering of the long filament on multiple crosspoints；

Figure 10 shows the schematic diagram of the sieve band on multiple scope of freedoms of multiple infalls and sphering with sphering；And

Figure 11 shows the schematic diagram according to Figure 10 with different filament diameters.

Specific implementation mode

For a better understanding of the present invention, the process on 1 surface of sieve band is illustrated with magnification fluoroscopy.Fig. 1 shows air-breathing Mouthfuls 2 section is disposed with traditional thin sieve band 1 on the air entry 2 and the fibre bundle 3 that is disposed thereon.By by air entry 2 Direction of motion B relative to sieve band 1 tilts the mechanical compression for realizing fibre bundle 3.Wherein fibre bundle 3 is in the one side of air entry 2 Upper or side.Because fibre bundle 3 is pressed on the surface of sieve band 1 by inspiratory flow S and 3 volume of fibre bundle is big and flexible, therefore It is partially immersed in the groove as caused by the connection of fabric.If fibre bundle 3 is since the inclination of air entry 2 is by lateral Relative motion R, then the fibre bundle 3 must pull against the protuberance of fabric.As shown in Figure 1 it may be speculated that in the illustrated embodiment It is not also prodigious to overcome the problems, such as that this is swelled as caused by connecting.

Visibly different is to have the case where thick, such as long filament of 150 μ m-thicks sieve band 1.Such case is shown in fig. 2 Go out.The fibre bundle 3 immerses the recess of the fabric as caused by connecting dearly.In order to be displaced sideways the fibre bundle 3, it is necessary to overcome increasing High resistance.

Other than connection shown in Fig. 1 and 2 is to the influence of 3 lateral movement feasibility of compressed fibre bundle, fabric Structure is touched in fibre bundle 3 and is also important in the case where sieving band 1.By the output end roller of unshowned rolling device to bringing , the protuberance that wide fiber stream must pass over fabric combined with compact fibre bundle 3.It has been also unfavorable work in the protuberance of this fabric With.

The section of sieve band 1 according to the present invention is shown in Fig. 3.Every root long silk of the sieve band is on the surface thereof or in sieve band It is driven plain in its join domain on 1 top and bottom.Each flat-top 6 is drawn and is labeled in figure 3.In relative motion The resistance of fibre bundle 3 is significantly less than in this embodiment according in Fig. 1 especially embodiment of Fig. 2 in R.The present invention exists This also reduces the protuberance of the conventional weave as caused by the connection in the case where using thick long filament 10 on minimum.Wherein The scope of freedom 5 can remain unchanged substantially.

Band 1 or similar can be sieved by calendering by reducing or flatten the protuberance of long filament 10, acted on identical method and realized. For instance it can be possible that：

Band 1 is sieved in calendering between being preferably heated roller at two；

Sieve band 1 is rolled by ultrasonic wave using Pretersonics；

Roll sieve band 1 by radiation, preferably by heat radiation；

The protuberance is eliminated for example, by the top surface and/or bottom surface that polish sieve band 1.

The advantages of top surface of substantially pressing sieve band 1 is enough to realize different from conventional screen band.Part flattens line transmission range It is another manufacture possibility --- and the fabric is close to the line transmission range of no flat-top 6.Deviate the range can be derived that, it is real Now as caused by manufacturing method and purpose other the advantages of, that is, sieve band 1 not only on top surface but also on bottom surface and entire wide It is driven plain on degree.Or being driven plain it is still possible that sieving 1 only part of band in on-line normalization range --- only wanted on top surface On the top and bottom.

If when flattening, the intersection in fabric will be caused when tumbling, pressing especially under temperature action or calendering The combination of a plurality of long filament 10 on point, then realizing the optimization of the movement speed of sieve band 1 in addition.

It is furthermore conceivable that the intertexture by multi-pattern long filament realizes similar effect.

It is possible according to the invention that removing sieve band 1 from thick fabric and using the long filament with major diameter.It is real simultaneously The existing requirement that yarn quality is good, long lifespan and energy efficiency are high.By flattening long filament 10 fiber is realized although thick fabric The optimization of the motility of beam 3 can also surmount the characteristic of thin braided fabric.

Fig. 4 shows that the section of air intake duct 4, sieve band 1 are guided around the air intake duct 4.Band 1 is sieved on direction of motion B by not The pinch roller driving shown.Wherein the surface of fixed air intake duct 4 is crossed in its sliding with its bottom surface.Fibre bundle 3 towards In Fig. 4 the right shown in air entry 2 port on unshowned rolling device output end roller to extend and with sieve band 1 one It rises and is transmitted along direction of motion B.Air-breathing under the action of negative pressure of air entry 2.Inspiratory flow S flow through sieve band 1 the scope of freedom 5 and Fibre bundle 3 is fixed on sieve band 1.Because air entry 2 be arranged to direction of motion B tilt, fibre bundle 3 carry out along Relative motion of the direction of arrow R perpendicular to the direction of motion of sieve band 1.Therefore fibre bundle 3 and the direction of motion B of sieve band 1 are lateral Ground rolls or sliding.

In the fiber transport region F residing for fibre bundle 3, the resistance of band 1 is sieved by the moulding of sieve band 1 according to the present invention Lateral movement relative to fibre bundle 3 reduces.Therefore better yarn is generated while the abrasion for sieving band 1 reduces.Fiber transport In the range of region F lies substantially in the sieve band 1 being arranged on air entry 2, or fibre bundle 3 collide sieve band 1 until Thereon fibre bundle 3 wear again sieve band point in the range of.As shown in figure 3, the transverse area except fiber transport region 11 The long filament of pressing can be again provided with.Alternative solution is even also likely to be, and the long filament in borderline region remains traditional transversal Face carries such as circle cross-section.

Long filament 10 usually has the diameter between 30 μm and 400 μm, between especially 80 μm and 300 μm.Preferably freely Face 5 accounts between the 10% and 45% of fiber transport region F.

Show that the section of sieve band 1, the sieve band include the long filament being driven plain on the lateral surface and top surface of sieve band 1 in Fig. 5 10.Flat-top 6 is located at the intersection for the long filament 10 being made of warp thread and weft yarn.The height of the protrusion generally produced herein is by flat-top 6 reduce.The total height S of two long filaments 10₀Thus it is lowered to total height S1.The embodiment of Fig. 5 also shows long filament 10 and 10` Different-diameter D₁And D₂。D₁Compare D₂It is small.Correspondingly D₁And D₂And be total height S₀。

Flat-top 6 is by removing or being generated in conjunction with long filament 10.Wherein there is smaller diameter D₁Long filament be lowered by Δ D_1A。 With initial diameter D₂Long filament 10 be lowered by Δ D_2A.When

S₀-S₁=0.25*D₂To 0.8*D₂

Or

ΔD_2A=0.25*D₂To 0.8*D₂

Or

ΔD_1A=0.25*D₁To 0.8*D₁

When be proved to be advantageous.

The cross section that sieve band is shown in FIG. 6 similar to Fig. 5, wherein the not only top surface of sieve band 1 and lateral surface, but also The medial surface and bottom surface for sieving band 1 are driven plain.Therefore remaining total height becomes S2, because of the not only length of thin long filament 10 but also thickness Silk 10 is driven plain on two side faces.Δ D1A or Δ D2A is lost on outer side.The loss Δ D11 on the medial surface of sieve band 1 Or Δ D21.When

S₂/S₀=0.7 to 0.3

Or

ΔD_1A=0.8*D₁To 0.3*D₁

Or

ΔD_2A=0.8*D₂To 0.3*D₂

Or

ΔD_1I=0.9*D₁To 0.4*D₁

Or

ΔD_2I=0.9*D₂To 0.4*D₂

When be advantageous.

The section such as Fig. 5 is shown in Fig. 7.Only there are flat-tops 6 on the top surface of sieve band 1.In order to cling 10 He of long filament Identical and similar channel is obtained between warp thread and the long filament 10 of weft yarn, and coating 11 is arranged on external crossover location.Cause This fibre bundle 3 being on sieve band 1 will not sink a lot in the recess other than the crossover location of long filament 10.Equally such as exist It is the same in Fig. 5, when

S₀-S₁=0.25*D₂To 0.8*D₂

Or

ΔD_2A=0.25*D₂To 0.8*D₂

Or

ΔD_1A=0.25*D₁To 0.8*D₁

When be advantageous.

It is driven plain according to two sides for sieving band 1 according to the embodiment of Fig. 8.Coating 11, which is correspondingly disposed in, intersects position Set upper and lower part.Therefore highly stable filler rod 1 is obtained.When

S₂/S₀=0.7 to 0.3

Or

ΔD_1A=0.8*D₁To 0.3*D₁

Or

ΔD_2A=0.8*D₂To 0.3*D₂

Or

ΔD_1I=0.9*D₁To 0.4*D₁

Or

ΔD_2I=0.9*D₂To 0.4*D₂

When be advantageous.

In addition to the fillet of setting long filament 10 on the external sieve band 1 with top flat-top 6 of coating 11 in the section of Fig. 9.Tool There is the movement that the fillet of radius of curvature R 1 and R2 to sieve the fibre bundle 3 on the surface of band 1 to become easy.This fillet can lead to Overheating Treatment obtains, such as by using ultrasonic wave.

The sieve band 1 of advantageously Fig. 5 to 8 also has the fillet of flat-top 6.Whenever wedge angle logical should all be avoided as far as possible Road.Or wherein 6 hot calender of flat-top and be crushed at edge.Coating 11 can also be alternatively set, and the coating is across flat-top 6 Edge extends and therefore equally crushes edge.

The section of the vertical view of sieve band 1 is shown in Figure 10.The scope of freedom 5 is between infall and long filament 10.In Figure 10 Using the long filament 10 of identical thickness, thus flat-top 6 is about the same in each infall size.

By using the long filament 10 according to Figure 11 of different-thickness, flat-top 6 is same different.Wherein the flat-top 6 ' is less than flat-top 6.Thus occur, there is smaller diameter D when shedding the more flat-top 6 of small area₁Long filament 10 ' obtain with larger diameter D₂ Long filament.

According to the schematic diagram of Figure 10 and 11 especially it is readily apparent that long filament 10 has the edge of sphering.The table of long filament 10 Face also has the edge of the sphering on its flat-top 6, therefore fibre bundle can be transmitted and be moved well.In addition distinguish Figure 10 and Figure 11 is it is readily apparent that the scope of freedom 5 of Figure 10 is substantially circular, and the scope of freedom of Figure 11 is substantially ellipse. In addition this is also by using 10 and 10 ' (Figure 11) of identical long filament 10 (Figure 10) or different-thickness to obtain.

With flattening with thermal process and can obtain filler during correspondingly adjusting temperature, because liquid plastics are crossed Crosspoint to flow down.The filler can realize that the polymer is painted on braiding by such as polymer during machinery flattens On object and and it is gathered into " most deep " point.

By flattening it is possible that using much better than long filament 10, such as the range between 100 μm to 400 μm.Therefore energy Enough abrasions for increasing sieve band 1, are ground on E type pipes and are worn on interior zone.

By suitable surface, the fiber is very well supported in its coating.It is shown in experiment, because fiber can Skip larger sieve pore in the fabric.Therefore the throttle resistance of the dense gas of sucking reduces.In the feelings that air mass flow is constant It under condition, must be compressed, negative pressure accordingly decreases and therefore saves energy.

Sieve pore, the i.e. edge length on the scope of freedom 5, can in the sieve band 1 being driven plain from 90 μm of 90 μm of x before= 0.0081mm²It is increased 2 times to 10 times.

The present invention is not limited to illustrated embodiments.The present invention there may also be the difference of various other forms, especially long filament Flat-top 6.It is important, therefore, that relative to round cross-section filament with such cross section, i.e., it can realize fibre bundle 3 With the transverse movement on the fabric of small resistance.

Claims

1. a kind of sieve band of compression set for spinning machine, the sieve band has to be made of interlaced a plurality of long filament (10) Fabric, and at least it is described sieve band (1) fiber transport region (F) in have it is more between a plurality of long filament (10) A scope of freedom (5), so that inspiratory flow (S) can influence to take the fibre bundle (3) of movement, and the sieve band in the sieve (1) there are top and bottom, which is characterized in that a plurality of long filament (10) has the cross section being driven plain, and the fabric Setting be used to contact the surface of the fibre bundle (3) at least there is in the fiber transport region (F) a plurality of long filament (10) scope of freedom (5) of the multiple infalls being driven plain and a plurality of long filament (10) and/or multiple spherings being driven plain Multiple spherings edge so that compared to the infall not being driven plain and a plurality of long filament (10) not being rounded or it is multiple from By face (5), the fibre bundle (3) is easier to move on the surface of the sieve band (1), and in the sieve band (1) The multiple friendships being driven plain of a plurality of long filament (10) are set on top surface or on the top and bottom of the sieve band (1) At the fork and edge of the multiple sphering on the scope of freedom (5) of a plurality of long filament (10) and/or the multiple sphering.

2. sieve band according to claim 1, which is characterized in that the top surface and the bottom surface of the sieve band (1) be not by It flattens together and/or sphering.

3. sieve band according to claim 1 or 2, which is characterized in that the multiple intersections being driven plain of new sieve band (1) Place forms the load-bearing ratio more than 10%.

4. sieve band according to claim 3, which is characterized in that the load-bearing ratio on the top surface of the sieve band (1) is high Load-bearing ratio on the bottom surface of the sieve band (1).

5. sieve band according to claim 1 or 2, which is characterized in that at least quilt described in the fiber transport region (F) The summation of the area of the multiple infalls flattened and the gross area of the sieve band or the fiber transport region subtract the scope of freedom The ratio of difference is between 0.1 and 0.8.

6. sieve band according to claim 1 or 2, which is characterized in that in the fiber transport region of the sieve band (1) (F) or in the fiber transport region (F) of the sieve band (1) and borderline region a plurality of long filament (10) is set The edge of the multiple infalls being driven plain and a plurality of long filament (10) and/or the sphering of the multiple scope of freedom (5).

7. sieve band according to claim 1 or 2, which is characterized in that the surface is at least in the fiber transport region (F) It is inside hot pressed flat or calendering or mechanically flattens or roll.

8. sieve band according to claim 7, which is characterized in that the thermal crushing or calendering are come by means of supersonic generator Implement.

9. sieve band according to claim 7, which is characterized in that mechanically the pressing or calendering by machining or Person is implemented by means of roller.

10. sieve band according to claim 1 or 2, which is characterized in that a plurality of long filament (10) carries decorative pattern.

11. sieve band according to claim 1 or 2, which is characterized in that a plurality of long filament (10) is transversal with being driven plain Face.

12. sieve band according to claim 11, which is characterized in that the cross section being driven plain is oval or real It is rectangle in matter.

13. sieve band according to claim 1 or 2, which is characterized in that a plurality of long filament (10) has 30 μm and 400 μm Between diameter.

14. sieve band according to claim 13, which is characterized in that a plurality of long filament (10) have 80 μm and 300 μm it Between diameter.

15. sieve band according to claim 1 or 2, which is characterized in that a plurality of long filament (10) has in warp thread and weft yarn There is different diameter (D₁、D₂)。

16. sieve band according to claim 1 or 2, which is characterized in that the fabric is weaved with 1/1 plain weave.

17. sieve band according to claim 1 or 2, which is characterized in that the fabric has more than 100 μm and is less than 2500 μm of screen size.

18. sieve band according to claim 17, which is characterized in that the fabric has more than 180 μm and is less than 1000 μ The screen size of m.

19. sieve band according to claim 1 or 2, which is characterized in that multiple described in the fiber transport region (F) The scope of freedom (5) accounts between 10% to 45%.

20. sieve band according to claim 1 or 2, which is characterized in that a plurality of long filament (10) is at least transported in the fiber It is combined with each other and/or is pressed into or be connected to each other by shape connection in multiple infalls of the fabric in defeated region (F).

21. sieve band according to claim 1 or 2, which is characterized in that the sieve band (1) is at least in the multiple infall On be filled with coating (11).

22. sieve band according to claim 21, which is characterized in that the sieve band (1) is at least on the multiple infall It is filled with polymer.

23. sieve band according to claim 1 or 2, which is characterized in that a plurality of long filament (10) is in the sieve band (1) It mutually fuses or is bonded on borderline region, scatter to avoid sieve band (1).