CN102828289B - Low-fiber falling air vortex spinning device - Google Patents
Low-fiber falling air vortex spinning device Download PDFInfo
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- CN102828289B CN102828289B CN201210348232.7A CN201210348232A CN102828289B CN 102828289 B CN102828289 B CN 102828289B CN 201210348232 A CN201210348232 A CN 201210348232A CN 102828289 B CN102828289 B CN 102828289B
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- 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
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Abstract
The invention relates to a low-fiber falling air vortex spinning device. The low-fiber falling air vortex spinning device comprises an upper air chamber cover, a lower air chamber cover and an encloser which are installed from top to bottom sequentially, a guide twisting prevention piece is assembled on the upper air chamber cover, a cone retaining piece is assembled on the lower part of the encloser, a yarn guide cone is assembled in a mounting hole in the cone retaining piece, a yarn guide channel is arranged at an axis position in the yarn guide cone, the yarn guide cone is a hollow part, a hollow cavity which is similar to the yarn guide cone in shape is formed in the yarn guide cone, moreover, through holes which are communicated with the hollow cavity are formed in the side wall of the yarn guide channel and are axially distributed into a plurality of layers along the yarn guide channel, the conical end part of the yarn guide cone is positioned in a vortex chamber which is formed by the upper air chamber cover, the lower air chamber cover, the encloser and the cone retaining piece, and the yarn guide cone is provided with a negative pressure suction source on the outer wall of the vortex chamber. With the low-fiber falling air vortex spinning device, the undesirable high fiber loss in the prior art is reduced, the fiber utilization ratio is increased, and the device can be adopted for producing yarns with higher count compared with the more acknowledged prior art.
Description
Technical field
The invention belongs to technical field of spinning equipment, particularly relate to a kind of air-swirl spinning apparatus of low fibre.
Background technology
Knownly produce by air-swirl the spinning apparatus that the spinning technique of spun yarn adopts, such as belonging to Japanese Murata by published Chinese patent CN 1970859A() and CN 1965115A(belong to Rieter Perfojet of Switzerland), as illustrated in fig. 1 and 2.The entrance of this device comprises a fiber feeding passage.Be provided with the parts for resistance twist (as a concentric pin, fiber leads round pin, or a projection is set on fiber guidance surface, and the fibre bundle generation of passing through is departed from) at the exit region of fiber feeding passage.
Downstream position in this fiber feeding channel outlet district is provided with an annular minor air cell, is provided with some spray-holes tangent with it on this minor air cell's perisporium, for to minor air cell's inject high pressure air, forms the air-swirl of convolution at a high speed in minor air cell.In addition, there is the guide axis body of a spindle shape to be passed into inside, minor air cell to heart, the certain distance in interval between the front end of this spindle shape guide axis body and above-mentioned fiber feeding channel outlet and above-mentioned resistance twist parts, and the gas passing away that inner formation one is ring-type around above-mentioned spindle shape guide axis body, cross section in above-mentioned minor air cell.The cavity forming between fiber feeding channel outlet and above-mentioned spindle shape guide axis body is configured for the region of twisting together with the top of above-mentioned gas passing away.The inner air-swirl forming in minor air cell is discharged from spinning apparatus via above-mentioned gas passing away.Above-mentioned spindle shape guide axis body central part be provided with one run through draw yarn channel, for the yarn being spun into is exported from twisting area.
It is such adopting the process of the spinning technique formation yarn of this class spinning apparatus: fiber strip is along fiber feeding passage to minor air cell's delivered inside.Due to the existence of fiber feeding channel outlet region resistance twist parts, fiber strip remains and does not add the state of the twist to be introduced into minor air cell.What the front end of fiber directly entered into spindle shape guide axis body draws yarn channel inside, and the tail end of fiber still remains in fiber feeding passage in the situation that being gripped by front roller nip.In the time that the tail end of fiber no longer grips for front roller nip, fiber is at fiber feeding passage and draw the centrifugal action that is subject to air-swirl between yarn channel, its end section no longer remains in fiber feeding passage, but in inside, minor air cell, the porch of drawing yarn channel radially dispersed out, under the drive of air-swirl, enter gas passing away, one side is tightened up by the effect of air-flow axial component, lodging is on the conical surface of spindle shape guide axis body front end, one side is tangentially turned round with air-swirl, forms spiral helicine fiber eddy current uniquely.Fiber wherein overcomes air-flow power in gas passing away and towards the entrance traction of drawing yarn channel, and is enclosed in just entering subsequently on the fiber front end that draws yarn channel and forms hard-packed yarn.The yarn forming is the fibrous of yarn core that parallel non-twist shape fiber forms and peripheral looping in the shape of a spiral by approximate.
The prominent features of this kind of spinning method is, can obtain very high spinning speed, can reach the scope of 300m/min ~ 500m/min, and the air velocity forming in the above-mentioned spinning apparatus adopting reaches as high as the scope of 400m/s ~ 500m/s.
In above-mentioned known spinning method and the spinning apparatus that adopts thereof, the active force that the fiber of lodging on the spindle shape guide axis body front end conical surface is subject to mainly comprises: in the fiber tail end of free state be subject to airflow acting force Fa, centrifugal force Fc, and guide axis body outer surface between frictional force Fs and entered frictional force Ff that periphery fiber that the fiber front end of yarn body inside is subject to applies etc.Wherein airflow acting force Fa can be decomposed into along the axial flow directed force F x of guide axis body axis direction with along the circumferential tangential gas flow directed force F y of guide axis body, as shown in Figure 3.Due to air velocity high in minor air cell, the active force that fiber is subject to will have very large probability to meet relational expression:
Wherein θ is the cone angle of the spindle shape guide axis body front end conical surface, and α is the angle between fiber tail end and guide axis body cone element, and β is the angle between Fs and fiber tail end.In the situation that meeting above-mentioned relation formula, from yarn body, out departed from yarn body by air-flow withdrawing by causing fiber can overcome the frictional force that in yarn body, periphery fiber applies, enter into the air-flow of gas passing away completely, become uncontrolled " swimming " fiber.This makes this known spinning method produce a large amount of fall fibre or fiber loss in the process that forms yarn.The increase of the fine amount that falls will cause the quantitatively partially light of fiber strip, produces yarn details, worsens yarn evenness, and causes the raising of processing cost.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of air-swirl spinning apparatus of low fibre, improve above-mentioned spinning method and yarn quality thereof, the object of the invention is to propose a kind of device that utilizes air-swirl to spin, its application compared with prior art reduces fiber loss to some extent, yarn evenness makes moderate progress, and likely production fineness is thinner compared with prior art, the finer and close yarn of structure.
The technical solution adopted for the present invention to solve the technical problems is: the air-swirl spinning apparatus that a kind of low fibre is provided, comprise the top air chamber cover of installing successively from the top down, bottom air chamber cover and case, guiding resistance twist part is housed on the air chamber cover of described top, cone keeper is equipped with in described case bottom, in installing hole in described cone keeper, be equipped with and draw yarn cone, describedly draw shaft position in yarn cone and have the yarn channel of drawing, the described yarn cone of drawing is a hollow, there is the cavity with appearance similar its inside, and draw the through hole that has connection cavity on yarn channel sidewall, described through hole has some layers along drawing the axial arranged of yarn channel, the described yarn cone tapered end that draws is by top air chamber cover, bottom air chamber cover, in the minor air cell that case and cone keeper form, there is negative pressure suction source described drawing on the outer wall of yarn cone outside minor air cell.
Every layer the rarest 6 of described through holes.
Described average length of drawing length that yarn channel sidewall is provided with the section of through hole and start to grow most from drawing yarn channel entrance the fiber for forming fiber strip.
Described drawing on yarn cone one end outside minor air cell seals with O type ring and posterior bracket, by bolt, posterior bracket is arranged on and drawn in yarn cone.
Some layers of through hole on the described sidewall that draws yarn channel are along drawing axially arranging with same intervals of yarn channel.
In some layers of through hole on the described sidewall that draws yarn channel, be less than away from the residue through hole that draws yarn channel tapering point along the axially spaced-apart that draws yarn channel near 1/2 ~ 2/3 through hole that draws yarn channel tapering point.
Some layers of through hole on the described sidewall that draws yarn channel along the axially spaced-apart that draws yarn channel along with distance draw yarn channel tapering point distance increase and increase.
In described some layers of through hole, every layer of through hole all with along the through hole that draws the axial adjacent layer of yarn channel staggers mutually.
beneficial effect
The invention has the advantages that: draw on the wall that draws yarn channel entrance in yarn cone inside negative-pressure air-flow absorption affinity is provided, increase the frictional force (as shown in Figure 4) of drawing yarn channel wall and give fiber strip, just make in the structure of the fiber strip of resultant yarn tightr simultaneously, increase and entered yarn body inside, may become the grasping force that the suffered periphery fiber of front end of floating state fiber applies, this fibrid can still be remained among fiber strip in the case of standing its front end larger airflow acting force and centrifugal force, and then remain in yarn body by follow-up twisting process, reduce significantly undesirable high fiber loss in prior art, the bar that has improved fiber utilization rate and resultant yarn is dry, save production cost.Owing to having improved the utilization rate of fiber, adopt device of the present invention likely to produce the higher yarn of more known prior art number.
Brief description of the drawings
Fig. 1 comes from the accompanying drawing 3 of CN 1970859A, represents the existing spinning apparatus (belonging to Japanese Murata) that utilizes air-swirl loose fiber strip to be made to spun yarn;
Fig. 2 comes from the accompanying drawing 6 of CN 1965115A, represents the existing spinning apparatus (belonging to Rieter Perfojet of Switzerland) that utilizes air-swirl loose fiber strip to be made to spun yarn;
Fig. 3 represents the main stress of fiber in the fiber eddy current in the spinning process of prior art;
Fig. 4 represents to adopt in the spinning process of apparatus of the present invention the main stress of fiber in fiber eddy current;
Fig. 5 is oblique view and the part profilograph of the first embodiment of the present invention;
Fig. 6 is the profilograph of the first embodiment of the present invention;
Fig. 7 is the drawing in side sectional elevation of the first embodiment of the present invention along I-I line in Fig. 6;
Fig. 8 is the profilograph of the second embodiment of the present invention;
Fig. 9 is the profilograph of the third embodiment of the present invention;
Figure 10 is the oblique view of the doffing tube of another kind of design of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
A kind of air-swirl spinning apparatus of low fibre, comprise the top air chamber cover 32 of installing successively from the top down, bottom air chamber cover 33 and case 52, guiding resistance twist part 20 is housed on described top air chamber cover 32, cone keeper 38 is equipped with in described case 52 bottoms, in installing hole in described cone keeper 38, be equipped with and draw yarn cone 7, describedly draw shaft position in yarn cone 7 and have the yarn channel of drawing 8, the described yarn cone 7 of drawing is hollow, there is the cavity 10 with appearance similar its inside, and draw the through hole 13 that has connection cavity 10 on yarn channel 8 sidewalls, described through hole 13 has some layers along drawing the axial arranged of yarn channel 8, described yarn cone 7 tapered ends that draw are by top air chamber cover 32, bottom air chamber cover 33, in the minor air cell 4 that case 52 and cone keeper 38 form, there is negative pressure suction source 16 described drawing on the outer wall of yarn cone 7 outside minor air cell 4.
Described through hole 13 every layer the rarest 6.
Described average length of drawing length that yarn channel 8 sidewalls are provided with the section of through hole 13 and start to grow most from drawing yarn channel 8 entrances 11 fiber 14 for forming fiber strip 1.
Described drawing on yarn cone 7 one end outside minor air cell 4 seals with O type ring 48 and posterior bracket 45, by bolt 50, posterior bracket 45 is arranged on and drawn in yarn cone 7.
Some layers of through hole 13 on the described sidewall that draws yarn channel 8 are along drawing axially arranging with same intervals of yarn channel 8.
In some layers of through hole 13 on the described sidewall that draws yarn channel 8, be less than away from the residue through hole 13 that draws yarn channel 8 tapering points along the axially spaced-apart that draws yarn channel 8 near 1/2 ~ 2/3 through hole 13 that draws yarn channel 8 tapering points.
Some layers of through hole on the described sidewall that draws yarn channel 8 13 along the axially spaced-apart that draws yarn channel 8 along with distance draw yarn channel 8 tapering points distance increase and increase.
In described some layers of through hole 13, every layer of through hole 13 all with along the through hole 13 that draws the axial adjacent layer of yarn channel 8 staggers mutually.
Embodiment 1
First embodiment of apparatus of the present invention has been shown in Fig. 5, Fig. 6, Fig. 7.As shown in Figure 5, spinning apparatus of the present invention is arranged on the downstream position of the output jaw 19 of roller drafting mechanism 17 and 18, so that through drafter 17 and 18 and next the fiber strip 1 of output is sent in spinning apparatus (suction producing by spinning apparatus entrance) and accepted twisting to form yarn 2.There is a fiber guiding resistance twist part 20 at the entrance of spinning apparatus.These parts contain a spiral spigot surface 21 in the present embodiment, form a fiber feeding passage 3 with spinning apparatus entrance wall 22.In addition, these parts 20 are provided with one for stoping downstream twist upstream passing and being convenient to realize the part 24 of fiber separation near the outlet 23 of above-mentioned fiber feeding passage 3, are a concentric pin in the present embodiment, as shown in Figure 6.But in device of the present invention, these parts can be also other any forms that can realize fiber guiding and stop the twist to be uploaded.
Downstream position in these fiber feeding passage 3 outlet areas is provided with an annular minor air cell 4.As shown in Figure 7, on this minor air cell's perisporium 5, be provided with some spray-holes 6 tangent with it, for to minor air cell's 4 inject high pressure air, in minor air cell 4, form the air-swirl of convolution at a high speed.In above-mentioned minor air cell 4, there is the yarn cone 7 of drawing of a spindle shape to be passed into its inside to heart, this spindle shape draw the front end face 25 of yarn cone 7 and above-mentioned fiber feeding passage 3 export 23 and above-mentioned resistance twist parts 24 between the certain distance in interval, and be positioned at the not far downstream position of the above-mentioned spray-hole 6 of distance.And then, innerly in above-mentioned minor air cell 4 form one and draw around above-mentioned the gas passing away 26 that yarn cone 7, cross section are ring-type.Fiber feeding passage 3 exports 23 and is configured for the region of twisting together with the top of above-mentioned gas passing away 26 with the above-mentioned cavity 27 forming between yarn cone 7 that draws.The inner air-swirl forming in minor air cell 4 is discharged from spinning apparatus via above-mentioned gas passing away 26.
Be provided with one that run through, cross section in above-mentioned inside of drawing yarn cone 7 along its axis and be the circular yarn channel 8 that draws, for the yarn being spun into 2 is exported from twisting area.Be configured to hollow in the inside of the wall shell 9 that draws yarn cone 7 shown in the present embodiment, to form around above-mentionedly drawing yarn channel 8, drawing upwards continuous cavity 10 of yarn cone 7 weeks.Meanwhile, in the certain distance extending internally at the entrance 11 that draws yarn channel 8, at above-mentioned cavity 10 and draw that to be provided with center line on the solid wall surface 12 between yarn channel 8 be the circular through hole 13 that runs through along drawing yarn channel 8 circular cross section radial directions, cross section.Draw length x that yarn channel sidewall 12 is provided with the section of this through hole 13 and start to grow most the average length L of the fiber 14 for forming fiber strip 1 from drawing yarn channel 8 entrances 11.The diameter of through hole 13 is in the scope of 0.05～0.1mm.In the present embodiment, above-mentioned through hole 13 is upwards equally spaced drawing yarn channel sidewall for 12 weeks, and in whole punch block, drawing yarn channel 8 and be equally spaced on axially, adjacent through-holes 13 is 0.2 ~ 0.4mm at the center of drawing outlet 15 cross sections on yarn channel 8 along drawing the circumferential spacing of yarn channel 8, is 1 ~ 2mm along drawing the axial spacing of yarn channel 8.
The bottom of the hollow cavity 10 of above-mentioned wall shell 9 inside of drawing yarn cone 7 is connected with negative pressure suction source 16, the air pressure of this negative pressure suction source 16 meets can control volume and the speed of drawing the suction air flow in set through hole 13 on yarn channel sidewall 12 by described, thereby draws yarn channel sidewall 12 but can carry out High Rotation Speed around drawing yarn channel 8 axis swimmingly described in can making not depart from spill process through the described yarn 2 that draws yarn channel 8.
For reaching the object of the present embodiment, the related parts of spinning apparatus of the present invention are such designs, manufacture and assembling:
As shown in Figure 6, spinning apparatus has the fiber guiding that is positioned at roller drafting mechanism exit with resistance twist parts 20, be coaxially entrenched in its downstream side and fix with it all-in-one-piece vortex tube 28 and the holding member 29 of vortex tube 28 is installed.Vortex tube 28 is entrenched in vortex tube holding member 29, and fixed being integrated with it.Vortex tube holding member 29 centers are provided with coniform hole 30, and that in taper hole 30, inserts coaxially that front end has a certain taper draws yarn cone 7.This draws yarn cone 7 front end faces 25 and side 31 and keeps certain gap, the minor air cell 4 that formation mentioned above with fiber guiding and resistance twist parts 20 ends and vortex tube holding member 29 respectively.Top air chamber cover 32 and bottom air chamber cover 33 are wrapped in the periphery of fiber guiding and resistance twist parts 20, vortex tube 28 and vortex tube holding member 29, and upper and lower chimeric and be consolidated, and form annular air chamber 34 in the periphery of vortex tube 28.On air chamber 34, be connected with compressed air source by unshowned flexible pipe in pore 35 connection layouts.The compressed air that compressed air source is supplied is spurted into minor air cell 4 via air chamber 34 by the spray-hole 6 on the perisporium 5 of previously described minor air cell 4, is formed for therein the revolution eddy current of Yarn twisting.
Drawing yarn cone 7 inner is hollow structure, its downstream side become isometrical portion 37 from the tapered portion 36 of leading section.Draw the isometrical portion 37 of yarn cone 7 chimeric and be fixed on cone keeper 38.In the inside of drawing yarn cone 7, insert doffing tube 39 by drawing yarn cone rear end coaxially.
Form and draw yarn channel 8 along the axle center of doffing tube 39, be made up of the hole of running through, its entrance 11 from the leading section of doffing tube 39 imports fibre bundle or yarn, and derives from the outlet 40 of opposite side.
The leading section of doffing tube 39 forms front end fitting portion 41, and it,, with to draw embedded hole 42 on yarn cone 7 front end faces 25 chimeric, is in contact with one another face bonding agent bonding, keeps airtight in case leak-stopping gas.
At doffing tube 39 and draw between the exine shells 9 of yarn cone 7, the passage that forms guiding negative pressure suction airstream is cavity 10 mentioned above.This negative pressure suction airstream path 10 is connected with not shown negative pressure suction source with the conduit 44 being attached thereto by the negative pressure suction airstream leadout hole 43 being formed on the exine shells 9 that draws yarn cone 7.
In certain distance on the tube wall 12 of doffing tube 39 from doffing tube 39 leading section entrances 11, be provided with through through hole 13 wherein, as shown in Figure 5 and Figure 6.The cross section of through hole 13 is circular.Punch block length x starts the average length L no longer than the fiber of formation fiber strip from drawing yarn channel 8 entrances 11.The center line of through hole 13 is along drawing yarn channel 8 circular cross section radial directions, as shown in Figure 7.
The rear portion of doffing tube 39 and mutual chimeric connection of posterior bracket 45, the rearward end of doffing tube 39 forms the fitting portion 46 of a little undergauge, and it is embedded in the embedded hole 47 of posterior bracket 45.Between doffing tube 39 and posterior bracket 45, using method of clamping, the elasticity O type ring 48 as seal member is housed, to prevent, between negative pressure suction airstream path 10 and outside, Leakage Gas occurs.Meanwhile, posterior bracket 45 is embedded in and draws in the rear stomidium 49 of yarn cone 7, from rear by bolt 50 through posterior bracket 45, and be formed on screwed hole 51 screw threads that draw in yarn cone 7 and fix.
Below bottom air chamber cover 33, the outer case 52 being fixed together with both that is arranged with of vortex tube holding member 29.On this case 52, have and be positioned at the gas discharge hole 53 in vortex tube holding member 29 downstreams and the conduit 54 being attached thereto, for the convolution eddy current having used is discharged from spinning apparatus.Drawing yarn cone holding member 38 fixes by the mutual screw thread in threaded portion 55 with case 52.
The above-mentioned wall shell 9 that draws yarn cone 7 can be made up of ceramic or wear-resisting metal material with doffing tube 39.
By such design, through hole 13 that can be on the sidewall of doffing tube 39 12 and draw the inner negative pressure suction airstream that form of yarn channel 8, realizes object of the present invention, and makes the parts of device of the present invention be convenient to processing.
The course of work and the principle of the present embodiment are: fiber strip 1 is along fiber feeding passage 3 to minor air cell's 4 delivered inside.Due to the existence of fiber feeding passage 3 exit region 23 resistance twist parts 24, fiber strip 1 remains and does not add the state of the twist to be introduced into minor air cell 4.The front end 56 of fiber 14 directly enter into draw yarn cone 7 draw yarn channel 8 inside, and the tail end 57 of fiber still remains in fiber feeding passage 3 in the situation that being gripped by front roller nip 19.In the time that the tail end 57 of fiber no longer grips for front roller nip 19, fiber 14 is at fiber feeding passage 3 and draw the centrifugal action that is subject to air-swirl between yarn channel 8, its end section 57 no longer remains in fiber feeding passage 3, but in 4 inside, minor air cell, entrance 11 places of drawing yarn channel 8 are radially dispersed out, under the drive of air-swirl, enter gas passing away 26, one side is tightened up by the effect of air-flow axial component, lodging is on the conical surface 31 of tapered portion 36 that draws yarn cone 7, one side is tangentially turned round with air-swirl, form spiral helicine fiber eddy current uniquely.The design of the present embodiment, make to have had additional negative-pressure air-flow absorption affinity on the sidewall 12 that draws yarn channel 8 entrances that draws yarn cone 7 inside, be subject to this absorption affinity effect, the fiber strip 58 that is being converted into yarn 2 is attached on the sidewall 12 that draws yarn channel 8 High Rotation Speed swimmingly, increase the frictional force that the sidewall 12 that draws yarn channel 8 gives fiber strip 58, just make in the structure of the fiber strip 58 of resultant yarn tightr simultaneously, increase and entered yarn body inside, may become the grasping force that the suffered periphery fiber of front end 56 of floating state fiber applies, this fibrid can still be remained among fiber strip 58 in the case of standing its front end larger airflow acting force and centrifugal force.This part fiber overcomes the air-flow power in gas passing away 26 and draws towards the entrance 11 that draws yarn channel 8, and is enclosed in just entering subsequently and on the fiber front end that draws yarn channel 8, forms hard-packed yarn 2.
Compared with prior art, by negative inspiratory pressure hole 13 being set drawing on yarn channel sidewall 12, reduced significantly undesirable high fiber loss, the bar that has improved fiber utilization rate and resultant yarn is dry, has saved production cost.Owing to having improved the utilization rate of fiber, adopt device of the present invention likely to produce the yarn higher compared with prior art number.
Embodiment 2
Fig. 8 is another embodiment according to apparatus of the present invention, and expression mode is identical with Fig. 6.Same parts also all adopts identical designated.
The place that the form of implementation of Fig. 8 is different from Fig. 6 is mainly to draw set through hole 13 on yarn channel sidewall 12 to draw the regularity of distribution of yarn channel 8 on axially.In the present embodiment, in the front end of punch block is the region x1 of certain distance of the close entrance 11 that draws yarn channel 8, densely distributed than in the x2 of the region of rear end, punch block of the distribution of through hole 13, but through hole 13 is drawing yarn channel 8 in above-mentioned two regions to be on axially equally distributed, it is to set like this drawing yarn channel 8 spacing on axially: the front end of punch block near described in draw in the region x1 of certain distance of the entrance 11 of yarn channel 8, adjacent through-holes 13 is 1～2mm at described center of drawing outlet 15 cross sections on yarn channel 8 along drawing the axial spacing of yarn channel 8, in the x2 of the region of rear end, punch block, adjacent through-holes 13 is 2～3mm at described center of drawing outlet 15 cross sections on yarn channel 8 along drawing the axial spacing of yarn channel 8.
Embodiment 3
Fig. 9 is another embodiment according to apparatus of the present invention, and expression mode is identical with Fig. 6 and Fig. 8.Same parts also all adopts identical designated.
The place that the form of implementation of Fig. 9 is different from Fig. 6 and Fig. 8 is mainly to draw set through hole 13 on yarn channel sidewall 12 to draw the regularity of distribution of yarn channel 8 on axially.In the present embodiment, through hole 13 to be distributed in whole punch block from drawing the direction that the entrance 11 of yarn channel 8 extends be downstream sparse by intensive transition gradually.It is to set like this drawing yarn channel 8 spacing on axially: adjacent through-holes 13 at described center of drawing outlet 15 cross sections on yarn channel 8 along draw the axial spacing of yarn channel 8 from the direction of drawing yarn channel 8 entrances and extending downstream by 1～2mm gradually transition be 2～3mm.
Place is different is that the front end face 25 that draws yarn cone 7 is processed as one with doffing tube 39 for another of the present embodiment and previous embodiment, instead of is processed as one with the wall shell 9 that draws yarn cone 7.In the present embodiment, front end face 25 is bonding with the face that the is in contact with one another bonding agent of front end face 59 of wall shell 9 that draws yarn cone 7, keeps airtight in case leak-stopping gas.
The present invention is not limited to the above embodiments.For example, on the sidewall 12 of doffing tube 39 regularity of distribution of set through hole 13 can be arranged to every layer of through hole 13 as shown in figure 10 all with the structure staggering mutually along the through hole 13 that draws the axial adjacent layer of yarn channel 8.
Claims (8)
1. the air-swirl spinning apparatus of a low fibre, comprise the top air chamber cover (32) of installing successively from the top down, bottom air chamber cover (33) and case (52), guiding resistance twist part (20) is housed on described top air chamber cover (32), cone keeper (38) is equipped with in described case (52) bottom, in installing hole in described cone keeper (38), be equipped with and draw yarn cone (7), it is characterized in that, the described middle shaft position of yarn cone (7) that draws has the yarn channel of drawing (8), the described yarn cone (7) of drawing is a hollow, there is the cavity (10) with appearance similar its inside, and draw the through hole (13) that has connection cavity (10) on yarn channel (8) sidewall, described through hole (13) has some layers along drawing the axial arranged of yarn channel (8), described yarn cone (7) tapered end that draws is by top air chamber cover (32), bottom air chamber cover (33), in the minor air cell (4) that case (52) and cone keeper (38) form, there is negative pressure suction source (16) described drawing on the outer wall of yarn cone (7) outside minor air cell (4).
2. the air-swirl spinning apparatus of a kind of low fibre according to claim 1, is characterized in that, every layer the rarest 6 of described through holes (13).
3. the air-swirl spinning apparatus of a kind of low fibre according to claim 1, it is characterized in that, described in draw the length that yarn channel (8) sidewall is provided with the section of through hole (13) and start the longest for forming the average length of fiber (14) of fiber strip (1) from drawing yarn channel (8) entrance (11).
4. the air-swirl spinning apparatus of a kind of low fibre according to claim 1, it is characterized in that, described drawing on yarn cone (7) one end outside minor air cell (4) seals with O type ring (48) and posterior bracket (45), by bolt (50), posterior bracket (45) is arranged on and drawn in yarn cone (7).
5. according to the air-swirl spinning apparatus of a kind of low fibre described in claim 1,2,3 or 4, it is characterized in that, described in draw some layers of through hole (13) on the sidewall of yarn channel (8) along drawing axially arranging with same intervals of yarn channel (8).
6. according to the air-swirl spinning apparatus of a kind of low fibre described in claim 1,2,3 or 4, it is characterized in that, in some layers of through hole (13) on the described sidewall that draws yarn channel (8), be less than away from the residue through hole (13) that draws yarn channel (8) tapering point along the axially spaced-apart that draws yarn channel (8) near 1/2 ~ 2/3 through hole (13) that draws yarn channel (8) tapering point.
7. according to the air-swirl spinning apparatus of a kind of low fibre described in claim 1,2,3 or 4, it is characterized in that, described in draw some layers of through hole (13) on the sidewall of yarn channel (8) along the axially spaced-apart that draws yarn channel (8) along with distance draw yarn channel (8) tapering point distance increase and increase.
8. the air-swirl spinning apparatus of a kind of low fibre according to claim 5, is characterized in that, in described some layers of through hole (13), every layer of through hole (13) all with along the through hole (13) that draws the axial adjacent layer of yarn channel (8) staggers mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210348232.7A CN102828289B (en) | 2012-09-18 | 2012-09-18 | Low-fiber falling air vortex spinning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210348232.7A CN102828289B (en) | 2012-09-18 | 2012-09-18 | Low-fiber falling air vortex spinning device |
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| CN102828289A CN102828289A (en) | 2012-12-19 |
| CN102828289B true CN102828289B (en) | 2014-11-05 |
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| DE102019120592A1 (en) * | 2019-07-30 | 2021-02-04 | Maschinenfabrik Rieter Ag | Method for piecing a spinning nozzle of an air-jet spinning machine and air-jet spinning machine |
| CN117248309B (en) * | 2023-11-16 | 2024-03-08 | 广东荣昌纺织实业有限公司 | Low-doffing threading jet vortex spinning device and application thereof in preparation of core spun yarn |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB880239A (en) * | 1957-12-30 | 1961-10-18 | Konrad Gotzfried | Improved process and device for the pneumatic spinning of a yarn |
| CN1107908A (en) * | 1993-11-04 | 1995-09-06 | 村田机械株式会社 | Fine yarn, method of and apparatus for producing same |
| CN1119225A (en) * | 1993-09-08 | 1996-03-27 | 村田机械株式会社 | Spinning apparatus |
| CN1407153A (en) * | 2001-09-05 | 2003-04-02 | 村田机械株式会社 | Spinning devices |
| DE60009402T2 (en) * | 1999-07-28 | 2005-03-10 | Murata Kikai K.K. | Spinning device and spinning process |
| EP1826299A2 (en) * | 2006-02-28 | 2007-08-29 | Murata Kikai Kabushiki Kaisha | Spinning device and spinning method |
| CN101294319A (en) * | 2008-05-26 | 2008-10-29 | 东华大学 | Spinning apparatus with air injection whirling current for lowering fibre |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4911295B2 (en) * | 2006-10-06 | 2012-04-04 | 村田機械株式会社 | Pneumatic spinning equipment |
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2012
- 2012-09-18 CN CN201210348232.7A patent/CN102828289B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB880239A (en) * | 1957-12-30 | 1961-10-18 | Konrad Gotzfried | Improved process and device for the pneumatic spinning of a yarn |
| CN1119225A (en) * | 1993-09-08 | 1996-03-27 | 村田机械株式会社 | Spinning apparatus |
| CN1107908A (en) * | 1993-11-04 | 1995-09-06 | 村田机械株式会社 | Fine yarn, method of and apparatus for producing same |
| DE60009402T2 (en) * | 1999-07-28 | 2005-03-10 | Murata Kikai K.K. | Spinning device and spinning process |
| CN1407153A (en) * | 2001-09-05 | 2003-04-02 | 村田机械株式会社 | Spinning devices |
| EP1826299A2 (en) * | 2006-02-28 | 2007-08-29 | Murata Kikai Kabushiki Kaisha | Spinning device and spinning method |
| CN101294319A (en) * | 2008-05-26 | 2008-10-29 | 东华大学 | Spinning apparatus with air injection whirling current for lowering fibre |
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|---|---|
| CN102828289A (en) | 2012-12-19 |
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