CN104114757B - Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine - Google Patents
Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine Download PDFInfo
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- CN104114757B CN104114757B CN201380008514.5A CN201380008514A CN104114757B CN 104114757 B CN104114757 B CN 104114757B CN 201380008514 A CN201380008514 A CN 201380008514A CN 104114757 B CN104114757 B CN 104114757B
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- Prior art keywords
- yarn
- draw
- insert
- mouth
- spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes
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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 a yarn draw-off unit of a rotor spinning machine, having a draw-off nozzle (21) which projects into a spinning chamber (22) of the rotor spinning machine, and a draw-off conduit (23) for a yarn (5) produced within the spinning chamber (22), the draw-off conduit (23) being arranged downstream of the draw-off nozzle (21) in the draw-off direction of the yarn (5) that is drawn off from the spinning chamber (22). The draw-off conduit (23) comprises a helical section (24), with the aid of which a false twist can be imparted to the yarn (5) within the draw-off conduit (23). Furthermore, a draw-off nozzle for a rotor spinning machine is described, the draw-off conduit (23) of which comprises a helical section (24), with the aid of which a false twist can be imparted to the yarn (5) within the draw-off nozzle (21). Finally, the invention relates to a method for producing a yarn (5) with the aid of a rotor spinning machine. The method is characterised in that the yarn (5) is exposed to torque within a helical section (24) of the draw-off conduit (23), said torque causing the yarn (5) to rotate about its longitudinal axis, the direction of rotation of the rotation corresponding to the direction of rotation that is imparted to the yarn (5) by the spinning rotor (3).
Description
Invention field
The present invention relates to unit drawn by a kind of yarn of rotor spinning machine, it extend into Spinning Yarn Made by Rotor Spinning Machine including one
What yarn was indoor draws yarn mouth, and the doffing tube for extracting the yarn of indoor for spinning generation, wherein, is drawing from spinning room
Described yarn out draw on yarn direction, described doffing tube be installed in described in draw the downstream position of yarn mouth.Additionally, the present invention
Provide a kind of method producing described yarn by rotor spinning machine, wherein, by means of spinning rotor, in the spinning room of spinning position
Interior, the fibrous material being made up of single fiber is twisted defining yarn, then, by means of drawing yarn mouth, via doffing tube, this yarn
Line can be brought out from spinning interior.Finally, the present invention describe a kind of for drawing yarn mouth in rotor spinning machine, described turn
Equipped with doffing tube structure on cup spinning machine, via described doffing tube, the yarn produced by rotor spinning machine can be by
Extract.
Background technology
Generally, rotor spinning machine is characterised by, first, by a point comb unit, the single fiber of delivery of fibers bundle is divided
Separate, be then introduced into spinning indoor.There, single fiber will strike the interior of the spinning rotor of high-speed rotation
Wall, then, single fiber can be thrown in rotor slot region for the centrifugal force of generation.Finally, the rotation of spinning rotor can cause list
Root fiber twists, and the yarn end having produced can be enwinded (fibres bond process) by these single fibers again.
As a result, the torsion of single fiber constantly can produce yarn, or existing yarn can be allowed constantly to increase, finally, can be via
Accordingly draw the doffing tube of yarn unit, yarn is extracted from spinning interior.
For actively impact above-mentioned fibres bond process it has been suggested that (see example DE 36 09 114 A1), in doffing tube
Inside, multiple raised structures of different shapes of arranging.Finally, described yarn can pass through these raised structures, according to these projections
Each geometry of structure, yarn will be provided with false twisting, and (after by described raised structures, false twisting can be divided comb again
Open).Finally, false twisting may proceed to be sent in rotor slot, and there, by the additional rotation of yarn end, described false twisting is permissible
There is provided for fibres bond process and support (therefore, the arrangement of raised structures to be allowed for ensureing, the rotation side of the false twisting being formed
To consistent with the rotation direction of existing yarn).
Even if described raised structures are fully able to actively impact fibres bond process, basically, the intensity of false twisting
Can be restricted.This is because, performance is, in order to allow yarn to rotate, the raised structures producing false twisting must have necessarily " point
Sharp gradient ".If the gradient of described raised structures is excessively sharp, excessive machinery can be produced to described yarn and bear
Lotus, so, the good effect that more preferable fibres bond is formed, again can be neutralized by subsequent being damaged of yarn.
Content of the invention
Therefore, it is an object of the invention to provide one kind draws yarn unit, one kind draws yarn mouth in other words, and a kind of production yarn
Method, by this goal of the invention, though in the case that fibres bond is good it is also possible to avoid yarn produce excessive negative
Lotus.
This task is by meeting equipment and technology, and has the yarn extraction device realization of feature described in claim 1
's.
According to the present invention, the yarn of described rotor spinning machine is drawn unit and is characterised by, for yarn interior generation
The drawn work pipe of yarn comprises helicoidal structure, by described helicoidal structure, false twisting can be applied to inside described doffing tube
Yarn in.In this case, it is forcibly introduced into by helical form, the yarn being generated can be obtained by required false twisting, or
Person says, during by said structure, the moment of torsion of therefore formation can play a role.As a result, the yarn producing
Can rotate, conversely, in the yarn rotor slot region of upstream, described rotation just can be pointed to the institute of yarn end
Moment of torsion is needed to produce impact.Therefore, the basic thought of the present invention is, introduces yarn by spiral helicine doffing tube structure.General feelings
Under condition, such extended structure does not definitely have (sharp) corner angle transition, so it is possible to exclude on yarn excessively
Mechanical load.More precisely, yarn will be directed on spiral helicine track, described track can play gentle guiding institute
State the effect of yarn, and it can also form required false twisting.In other words, according to the object of the invention, described yarn is permissible
Through the pipeline of each face closure, described pipeline be preferably designed for circle or prism shape segment structure, described doffing tube part is simultaneously
And there is helical form trend.
According to a preferred embodiment, spiral helicine extended structure can be limited by the surface segment structure being used.When
The described spiral extension structure drawing tube can be surface-treated, while corresponding component inside extends, the production flower needing
Take then much less.In this case, corresponding section can be milled in the surface of insert.Preferably, described insert
There is cylindrical external outline, and described outline, only interrupted by the spiral extension section extension of described doffing tube.
If insert is surrounded by inwall and the insert surface section towards inwall has a helical form, preferably channel-shaped
Sunk structure, and described sunk structure can constitute spiral helicine extension with adjacent inner wall section.In this case,
Insert does not need any built-in pipe.On the contrary, by the phase of insert (sunk structure limiting surface form) surface section
Opposite face in interaction, and the therefore corresponding inwall insert positioned at rotor spinning machine support insert component so that it may
To form the doffing tube section according to the present invention.By material removal process, described sunk structure can be easily introduced into, than
As said, on cylinder, simultaneously it is contemplated that the formation of helical form doffing tube section, almost need not be to supporting existing insert and tool
The structural member having described interior wall construction is processed.
In general, if the component with inwall of insert and spinning draw-out device is independent component, can compare
Favorably.In this case, two cellular constructions can be made from a different material, and wherein, insert can be by pottery, metal
Or plastics make.Finally, insert can be bonded together with the component with inwall or with screw, they are screwed in one
Rise.Similarly it is also contemplated that both mutually press together, wherein, in all situations, there is inwall being related to
During element structure aspect, the installation site of insert should be fixing.
If additionally, the component with inwall is made up of sleeve, and insert is installed in described sleeve inner,
And described sleeve is that fixation cannot rotate, then this design comparison is favourable.So, described sleeve has another component, should
Component will be preferentially used the placement of insert and in the restriction according to the doffing tube spiral extension section of the present invention.Described
Sleeve itself, can be installed in the hole/opening of case lid limiting spinning room.
Especially advantageous structure is, if described part and sleeve are bonded together, can be for being purely vpg connection
Connection (screw, pressing etc.).
Especially advantageous design is will to draw yarn mouth with sleeve and link together with drawing tube, and wherein, insert be put
Put and drawing yarn mouth and drawing between tube, with sleeve by described insert around firmly.In this case, the effect of described sleeve is
For placing insert and drawing yarn mouth, so ensure that, the position of doffing tube can enter from the yarn drawing yarn mouth exactly
Mouth extends to and draws tube.Additionally, the optimal design of described sleeve is circular configuration, in addition, it has one or more stop
Face, described draw yarn mouth and/or draw tube be located at described stop surface on, in other words, by means of described stop surface, described sleeve itself
Just can be close to corresponding adjacent members.
Additionally, especially advantageous design is, described sleeve and driving element be operatively connected together with, by
In driving element, described sleeve can be rotated.In this case, according to the doffing tube spiral extension of the present invention
Structure has drivability, wherein, rotation direction can consistent with the rotation direction of spinning rotor it is also possible to its side of rotation
To contrary.By the extra rotary motion of described structure, the structure improving yarn texture can be reached, wherein, in visual effect
On, described rotation can play especially positive effect to the uniformity of yarn.The range of speeds that described sleeve is likely to be breached exists
10,000 rpms (rpm) are to 100,000rpm.The decision design range of speeds 20,000rpm to 60,000rpm it
Between, wherein, when described rotating speed is located at 30, when 000 to 50,000rpm, the effect reaching is best.Preferably, the drive of described sleeve
The dynamic transmission belt being made by being wrapped on described sleeve is realized, in turn, described transmission belt can also, such as, by one
Drive shaft, realizes effectively connection with corresponding driver (for example, the central actuating shaft of electro-motor or rotor spinning machine).
In this case, advantageous design is that described sleeve is placed in above a trunnion bearing, and with respect to position
Put fixing draw yarn mouth, described sleeve can be rotated.In other words, favourable advantageous design is, is generating yarn
During, described sleeve will not occur any rotation, and simultaneously, the doffing tube section according to the present invention will enter described rotation process
In.In this case, drawing yarn mouth in other words by the described component drawing the yarn extraction unit that yarn mouth supports and described set
Between cylinder, a trunnion bearing can be installed, although draw there may be relative motion between yarn mouth and sleeve, so permissible
Prevent entrance and the effusion of air.Especially advantageous design is that described sleeve is arranged in its two end regions,
To guarantee to be constituted the stability of structure.
Similarly, advantageous design is that described sleeve and the connection drawn between yarn mouth are fixing, so,
Described yarn mouth of drawing can be rotated jointly with described sleeve.Can consider use design be, forbid described sleeve and
There is relative motion, so, in described spinning mouth region, the yarn of generation just can encounter shifting between described spinning mouth
Dynamic surface.In this case, sleeve and yarn mouth can be by, such as, it is bonded together.Can consider that the replacement using sets
Meter is, between sleeve and yarn nozzle, in addition designs a component, and described sleeve and spinning mouth can be fixed by described component
Link together.
Similarly, the advantageous design of the present invention is, towards the described side drawing yarn mouth, described insert has and leads to
The inlet slope of guide channel, and/or, in the dorsad described side drawing yarn mouth, described insert has positioned at guide channel prolongation
Exit ramp on line.In this case, during the doffing tube section that linear pattern extends is transitioned into spiral extension section, no
The direction of described yarn can be changed suddenly, but it gently should be directed to according in the doffing tube section of the present invention, or
It is therefrom gently guided.
Additionally, the advantageous design of the present invention is, in the adjacent area leading to described doffing tube, described inlet slope and/
Or exit ramp flushes.In the present embodiment it should avoid occurring stepped or sharp edges transition completely, such one
Come, the guiding to described yarn just can become especially soft.It is preferred that above-mentioned slope should be by described insert
Correspondent section constitute, and described section can be placed in respective front.
The advantageous design of the present invention also has, described insert is at least part of be positioned at described in draw within yarn mouth.
Therefore, described insert can become described in draw the part of yarn mouth, in this case, described draw yarn mouth and described insertion
Part can be replaced simultaneously.As a result, the yarn mouth of drawing just obtaining can be to use the described doffing tube section according to the present invention, this
Sample one, it is possible to described yarn mouth of drawing is used for existing rotor spinning in the case of need not taking other structures measure
In machine.
The advantageous design of the present invention is to draw between the yarn entry of yarn mouth and described spiral extension section described, installs
There is linear pattern doffing tube section.In this case, described yarn mouth of drawing has one (extending at center) perforation, thus can be very light
Change places and described in producing, draw yarn mouth.Then, described insert finally will be inserted in described perforation, and simultaneously, described insertion
Part, at least can be again used as the part on the restriction surface of the spiral extension section of described doffing tube.
Additionally, the advantageous design of the present invention is, described insert is made up of pottery, metal or plastics.Similarly, institute
State the making of insert, be by casting or by completing to base plate (surface) process.As such, it is contemplated that using not
Same described insert coating, or, the surface region contacting with described yarn, this is done to, can be to insertion
Friction condition between part and yarn adjusts accordingly.
The advantageous design of the present invention also resides in, and the number of total coils of described helical form guide rail is that between 0.2 to 5, decision design is total
The number of turns is 1 to 3.Because the high number of turns can promote the rotation of described yarn, therefore, the low number of turns can only produce relatively on described yarn
Little moment of torsion, so, the outside fiber of described yarn only needs to bear relatively low mechanical load.Even if, such as, guide rail
The number of turns only have half-turn, it also has spiral-like yarns contact surface, that is, described contact surface has a segmental arc, additionally, described
Contact surface also can extend in the longitudinal direction of remaining doffing tube, so it is possible to form helix helical form trend in other words.
The advantageous design of the present invention is that in a top view, described spiral extension section is arc-shaped structure, with respect to drawing
The longitudinal axis of spool, described circular arc has central angle a, at least 60 ° of its size, and preferably at least 120 ° particularly preferably at least
For 180 °.Therefore, according to described section of invention, as described above, a whole circle can be less than, wherein, described arcuate structure is permissible
Ensure the formation of corresponding false twisting.
Finally, an advantage of the present invention design is that described insert is by several, preferably by same type of list
Solely element is constituted, and wherein, in strength and vpg connection, these individual components are all intermeshing.In other words, in the present invention
Employ " basic spiral ", described basis spiral structure can allow it, in terms of shape and/or strength, can with one or
Several basic spirals are connected.Resulting possibility is that the individual component interconnecting can change described inserting
Enter part or the number of turns of described doffing tube.Wherein, such as, on the front of described individual component, can have one or several
Sunk structure, and on reverse side, described individual component then can have one or several raised structures.If, two are individually
Element is joined together, then the one of raised structures in described individual component just can catch adjacent individual component
Sunk structure.Preferably, at least one region, described raised structures or sunk structure are not circular cross section knots
Structure, so, the individual component linking together each other, just cannot rotate towards contrary direction.This explanation, mutually
The individual component linking together can form continuous doffing tube, and described doffing tube then can prolong along whole individual component
Stretch.Additionally, it is also possible that described insert is by front end component, end component and one or several identicals
Between part constitute, wherein, front end component has inlet slope, and back-end component has exit ramp.Finally, the number according to intermediate member
Amount is it may be determined that the total length (wherein it is also possible to not use intermediate member) of described insert.Finally, described insert also may be used
To be made up of several identical individual components, meanwhile, described individual component is respectively provided with inlet slope and exit ramp structure.
Wherein, the decision design of entrance and exit ramp profile is coordinated to determine according to both, during connecting individual component, described
Contour structure cooperates in shape, and it may ensure that the generation of above-mentioned rotary motion.
Yarn mouth of drawing according to the present invention has doffing tube with spiral extension section, by means of described section, can be by vacation
Twist with the fingers and be applied in the yarn drawing in yarn mouth.In other words, described yarn mouth of drawing inherently has described section according to the present invention.Therefore,
The yarn mouth of drawing according to the present invention can be equipped with any existing rotor spinning machine having and individually drawing yarn mouth structure, thus
Can reach and improve yarn qualities, especially the purpose of fiber connection procedure.In this case, according to described section of the present invention
Can be made up of insert, as described above, wherein it is preferred to, described yarn mouth of drawing has cylindrical perforations, and described slotting
Enter part and can be imported into and be fixed in described cylindrical perforations (such as, by way of pasting).
By the spinning position of rotor spinning machine, according to being finally characterised by of yarn making process of the present invention, draw described
In the spiral extension section of spool, described yarn can be subject to moment of torsion control, and described moment of torsion can allow described yarn vertical around it
Axle rotates, wherein, described rotation direction, consistent with the rotation direction that described yarn passes through to obtain in spinning rotor.At this
Previously described yarn unit or spinning mouth is drawn, wherein, be related to can be real by any combination it is possible to use in the case of kind
During existing various independent feature, may be referred to following description.Additionally, special design is, in doffing tube region, by yarn
Contact between doffing tube spiral extension section inwall is it is possible to realize the rotation that described yarn produces.Therefore, in the present invention
In one preferred embodiment design of method, in helical track, described yarn will be around an insert.Meanwhile, according to
The object of the invention, the guide rail of described yarn is the groove depression structure of spiral extension, and described sunk structure is located at
The surface of described insert.
Brief description
Describe the further advantage of the present invention in the examples below that, in the accompanying drawings：
Fig. 1 is the partial cut away side views of known rotor spinning machine；
Fig. 2 is the part section detail view of the rotor spinning machine spinning room according to prior art；
Fig. 3 is to draw yarn mouth partial cut away side views according to the present invention；
Fig. 4 is the partial cut away side views drawing yarn unit according to the present invention；
Fig. 5 is another kind of partial cut away side views drawing yarn unit according to the present invention；
Fig. 6 is side-looking and the top view of the many parts insert intermediate member drawing yarn unit according to the present invention；And
Fig. 7 is another kind of partial cut away side views drawing yarn unit according to the present invention.
Specific embodiment
Fig. 1 is illustrated that the partial cut away side views of known rotor spinning machine it is generally the case that described rotor spinning machine bag
Include multiple spinning positions 1 being mounted side by side on machine longitudinal (i.e. the vertical aspect of plane).By known methods, by supply dress
Put 11, fibrous material 2 out will be transported to each spinning position 1 from spinning can 3, by means of combing roller 10, described undulation degree
Material 2 will be single fiber by a point comb, and then, (the occurring in paper plane rear) fiber marking out by dotted line in Fig. 2 supplies
Answer pipeline 16, described fibrous material 2 will be transported on spinning rotor 4.The yarn 5 generating on described spinning rotor 4, will lead to
Cross outlet 13, drawn yarn roller and the yarn withdrawal device 7 comprising in 6 is drawn from spinning position 1, if it would be possible, being supervised using yarn
Survey unit 12 and check yarn defect, then, the devices for taking-up 8 that comprised by spool 9 is by yarn winding.
Details as shown in Figure 2, described spinning position 1 has a spinning room 22, and the spinning rotor 4 being driven by armature spindle 20 is inserted
In described spinning room 22, and described spinning room 22 is then limited by a housing 18 and a rotatable cover plate 17.Under normal circumstances,
There is a sealing structure 19 between cover plate 17 and housing 18, this structure purpose is to maintain presence in described spinning room 22
Low pressure.
Finally, the yarn 5 produced can be brought out by so-called yarn mouth 21 (or yarn entry 15) of drawing, and described
Drawing yarn mouth 21 can be a removable insert structure being fixed on described cover plate 17, and in most of the cases, it is and draws
Tube 14 links together, and such as, by means of support member 34, the described tube 14 that draws can also be installed in described cover plate
On 17.Described yarn mouth 21, described support member 34 and the described inner passage drawing tube 14 of drawing has finally constituted doffing tube 23, and
During drawing and in yarn room 22 extracting yarn 5, described doffing tube 23 can provide necessary guide effect.
Generally, during rotor spinning, the fiber (not shown) separated by combing roller 10 can be inhaled into institute now
State in spinning rotor 4, and pass through the high rotating speed of spinning rotor 4, described fiber will be forced in groove 35.There, institute
State fiber into contact with the yarn 5 shown in Fig. 2, and (according to the rotation situation of rotor) is winding to same turning by described fiber
Dynamic end (so-called fibres bond process).Continuous yarn 5 just can be formed in this way, and described yarn 5
Can be brought out by drawing yarn mouth.
In order to improve described fibres bond process further it has been suggested that, inside described doffing tube 23 arrangement or many or
Few anxious steering structure, that is, set raised structures on doffing tube inwall.Described steering structure, can be by moment of torsion to
Yarn 5 through manufacturing forms impact, and described moment of torsion can make described yarn 5 obtain false twisting (it is, by turning to
The turn that comb is opened is divided again) after structure.Described false twisting by described draw yarn mouth 21 continuously propagate enter eventually into described spinning turn
In the groove 35 of son 4, finally, described false twisting can help fibres bond to the yarn 5 having spun.
Although the intensity of described false twisting can be affected because of turn-around design.But, the sharp steering of angle (may be produced
The larger false twisting of raw strength ratio) excessive mechanical load can be caused to described yarn 5 simultaneously, so, the intensity of false twisting is
Can be restricted eventually.
In order to solve this problem, according to the present invention, it is proposed that, described doffing tube 23 includes one for described yarn 5
In spiral extension section 24, by means of described section 24, false twisting can be applied in the yarn 5 within described doffing tube 23.
Fig. 3 is illustrated that and draws yarn mouth 21 according to the present invention, wherein, the described spiral extension section 24 according to the present invention is
It is made up of an insert 25, described insert 25 is arranged in (generally rotatable) and draws inside the doffing tube 23 of yarn mouth 21,
According to Fig. 2, described yarn mouth 21 of drawing substantially can also be used in rotor spinning machine.
Say in principle, such as, it is columned that the described insert 25 being inserted in doffing tube 23 has one
Exterior contour, and the in-profile of the inwall 27 that this exterior contour is limited with yarn mouth through hole is corresponding.In addition, above-mentioned
In the adjacent surface section of inwall 27 26, insert 25 also has a helical form sunk structure 28, according to the type of helix, described recessed
Sunken structure 28 can be by the upper surface of described insert 25 around firmly.And external, the sunk structure 28 being preferably designed for channel-shaped will be subject to
Sunk structure 28 to inwall 27 adjacent part 29 limits.
As a result, in this way, a doffing tube 23 including spiral extension section 24 can be obtained, from institute
State in spinning room 22 out draw yarn during, yarn 5 must pass through from described section 24.Wherein, if helical form rotation side
To consistent with the rotation direction of the yarn 5 occurring in yarn entry 15, then, in described insert 25 region, described turn
Dynamic will be strengthened.Finally, corresponding false twisting (opening again dividing comb after insert 25) may proceed to propagation reach described
In the groove of spinning rotor 4, there, it may ensure that the fibres bond of yarn 5 end is very firm, wherein, generating vacation
While sth. made by twisting, by the rounding limiting surface of spiral extension section 24, this process hardly produces any to described yarn 5
Extra mechanical load.
The quantity of described spiral or gradient are understood merely by example.Certainly, other related changes are being considered
It is also possible to adjust to two parameters in the case of amount (the described type drawing yarn mouth 21, the spinning rotor rotating speed of described yarn 5)
Whole, compared with shown numerical value, this two parameters are likely to more or less deviation occurs.Similarly, say in principle, described
Draw yarn mouth 21 and the single part separated is unlikely to be from cover plate 17.On the contrary, in framework of the present invention, people are to " drawing yarn mouth "
Understanding be usually that described spinning apparatus extend to the section in described spinning rotor 4, additionally, described section inclusion, be connected to yarn
The leading portion of the doffing tube 23 on entrance 15.
Finally, Fig. 4 is illustrated that a yarn extraction device according to the present invention, in the apparatus, by described insert
The spiral extension section 24 of the described doffing tubes 23 of 25 restrictions draws the inside of yarn mouth 21 described in not being installed in, but with described
Draw yarn mouth 21 to link together.In this case, described insert 25 is installed in sleeve 30, conversely, described sleeve 30
Again draw described yarn mouth 21 and draw tube and 14 be connected together.Therefore, if it is desired, removable unit can be obtained,
That is, in the case of there is corresponding abrasion, only need to change corresponding units device.
When being brought out section 24 inner rotation in spiral extension for the next yarn 5, in order to continue to reduce what it was born
Mechanical stress, the advantageous design of the present invention is, described insert 25, as shown in Figure 3 and Figure 4, have an inlet slope 31 and/or
One exit ramp 32.So just can avoid occurring drastically to turn to, and described yarn 5 just can be introduced by very light and slow
To in described insert 25 or next from being wherein brought out.Described inlet slope 31 can also directly with described yarn entry
While 15 (especially seeing Fig. 3) is connected, the advantageous design of the present invention also resides in, and prolongs in described yarn entry 15 and described helical form
Before stretching section 24, described doffing tube 23 has one linear section 33.It is particular in that, in which case it is possible to use passing
System take yarn mouth 21, corresponding with Fig. 4, can be in the described insert 25 taking and increasing in yarn mouth 21 according to the present invention.
Additionally, the advantage of present invention design is, described insert 25 is made up of some.Show in Fig. 5 and Fig. 6
Go out is corresponding embodiment.
As can be seen from these figures, shown insert 25 is by having inlet slope 31 front end component 37, have outlet
The intermediate member 36 that the end component 38 on slope 32 and is installed between the two is constituted.Front end component 37, intermediate member
36 and end component 38 rely on the anti kickback attachment that the contact surface 39 that is closely packed together and shape are consistent and are interleaved together
Suitably install.
As shown in fig. 6, described anti kickback attachment is permissible, such as, by complementary protuberance structure 40 and respective recesses structure
Interaction between 41 is realized.For example, in its two surface range, described intermediate member 36 has one in front and dashes forward
Play structure 40, and a corresponding sunk structure 41 then can be had on reverse side.Now, in the example depicted in fig. 5, if at it
On the front of right side, front end component 37 also has a corresponding sunk structure 41, then by prominent structure 40 it is possible to by shape phase
The described intermediate member 36 agreeing with is plugged together with described front end component 37.Similarly, described intermediate member 36 and described end
This corresponding connection can also be realized, precondition is, in the contact surface 39 towards described intermediate member 36 between part 38
On, described end component 38, have one for the sunk structure 41 in intermediate member 36 prominent structure 40.
It is by many insert 25 design advantages partly constituting, according to each technological parameter, (spinning fiber material 2 spins
Yarn speed etc.), thus it is possible to vary the quantity of the intermediate member 36 of use.If by direct for described end component 38 in described leading section
Part 37 meshes together, then the doffing tube 23 obtaining is just especially short, and passes through to insert one or more intermediate members middle
36 it is possible to be extended.
Certainly, also one kind is probably, the complete phase of structure of front end component 37, end component 38 and intermediate member 36
With so, corresponding insert 25 can be made up of identical primary element.In such a case, it is possible to consider to use
Design be in each described primary element, to have an inlet slope 31 and an exit ramp 32 structure (inserting in comparison Fig. 4
Enter part 25), wherein, when adjacent primary element is under installment state, mutual between inlet slope 31 and exit ramp 32
Position should be such, should avoid each other rotating, and should form a continuous doffing tube 23.
Finally, Fig. 7 is illustrated that a preferred embodiment of the present invention, in this embodiment, has spiral extension
The component of section 24 can effectively be driven.Described component is permissible, such as, it is a sleeve 30 structure, be consistent with Fig. 4 to Fig. 6
, inside it, have an insert 25, and described insert 25 have section 24 structure according to the present invention.
In order to drive described component, in turn it is preferable that by the transmission belt 44 of partial cross section shown in Fig. 7, driving with one
Moving axis 45 is connected, and on the other hand, under the driving of transmission device (for example, unshowned motor), described drive shaft 45 can be sent out
Raw rotation.For this reason, on the extension section of paper plane, described component is (in the figure 7：Sleeve 30) and described drive shaft 45
There is a spiral helicine exterior contour structure, so, described component and described drive shaft 45 just can the (situations in energising
Under) be transmitted band and 44 enwind, and rotate.
In such a case, it is possible to consider that the design using is, such as, sleeve 30 and shown leading portion 42 and/or shown
Back segment 43 is monolithic structure, and like this, two sections 42 and 43 are (in leading portion 42 with draw the feelings that yarn mouth 21 accordingly links together
Under condition, and draw yarn mouth 21) equally can also rotate.Alternate design can be considered as, accordingly fix in position
Section (leading portion 42, back segment 43 or other existing load bearing elements) internal, described sleeve 30 should be placed in corresponding rotary shaft
Hold top, so, even if it is also possible to drive described sleeve 30 in the state of drawing yarn mouth 21 remains stationary.
With described embodiment shown in the invention is not restricted to.It is also possible to realize to one in this scope of the patent claims
The modification of series of features, even if having been carried out to these features in various embodiments showing and describing.
Symbol list
1 spinning position
2 fibrous materials
3 spinning cans
4 spinning rotors
5 yarns
6 draw yarn roller pair
7 yarn withdrawal devices
8 spinning apparatus
9 spools
10 combing rollers
11 feedways
12 yarn monitoring units
13 outlets
14 draw tube
15 yarn entry
16 fiber supply lines
17 cover plates
18 housings
19 sealing structures
20 armature spindles
21 draw yarn mouth
22 spinning rooms
23 doffing tubes
The spiral extension section of 24 doffing tubes
25 inserts
The surface section of 26 inserts
27 inwalls
28 helical form sunk structures
The adjacent inner wall section of 29 sunk structures
30 sleeves
31 inlet slopes
32 exit ramp
The linear pattern section of 33 doffing tubes
34 supporting constructions
35 grooves
36 intermediate members
37 front end components
38 end components
39 contact surfaces
40 raised structures
41 sunk structures
42 leading portions
43 back segments
44 transmission belts
45 drive shafts
Claims (22)
1. rotor spinning machine take yarn unit, have to extend into rotor spinning machine and spin and draw yarn mouth (21) in room (22), and
For the doffing tube (23) extracting the yarn (5) generating in spinning room (22), wherein, extracting from spinning room (22)
Described yarn (5) draw on yarn direction, described doffing tube (23) be installed in described in draw the downstream position of yarn mouth (21), its feature
It is, described doffing tube (23) includes spiral extension (24), and by this structure, false twisting can be applied to draws yarn mouth
(21) on internal described yarn (5),
Wherein, described spiral extension section (24) is limited by the surface section (26) of insert (25),
Wherein, described insert (25) is made up of several individual components, wherein by front end component (37), end component
And one or several identical intermediate members (36) are constituted, or the individual component by several same types (38)
Constitute, wherein, in power and/or vpg connection, these individual components are intermeshing each other.
2. according to claim 1 take yarn unit it is characterised in that described insert (25) by inwall (27) around, and
And, towards the surface section (26) of the insert (25) of inwall (27), there is spiral helicine sunk structure (28), it is with inwall (27)
Adjacent part (29) together form spiral extension section (24).
3. according to claim 2 take yarn unit it is characterised in that described surface section (26) have helical form and be channel-shaped
The sunk structure (28) of design.
4. take yarn unit it is characterised in that described insert (25) and there is inwall (27) according to Claims 2 or 3
The yarn unit member that takes be single component.
5. take yarn unit it is characterised in that the component with inwall (27) structure is by covering according to Claims 2 or 3
Cylinder (30) is constituted, and the installation site of described insert (25) is internal in described sleeve (30), and, described sleeve
(30) installation is non-rotatable.
6. according to claim 5 take yarn unit it is characterised in that described insert (25) and described sleeve (30) be by
It is bonded together.
7. according to claim 5 take yarn unit it is characterised in that described sleeve (30) draws described yarn mouth (21) and draws
Tube (14) is connected together, and wherein, described insert (25) is installed in draws yarn mouth (21) and draw between tube (14), and
And surrounded by described sleeve (30).
8. according to claim 5 take yarn unit it is characterised in that described sleeve (30), by round described sleeve
(30), between driving element, there is effectively connection in transmission belt (44), and, by described driving element, described sleeve (30)
Can rotate.
9. according to claim 8 take yarn unit it is characterised in that described sleeve (30) is installed on a trunnion bearing
Side, fixing with respect to position draws yarn mouth (21), and it can move.
10. according to claim 8 take yarn unit it is characterised in that described sleeve (30) and draw the connection between yarn mouth (21)
It is non-rotatable, thus described yarn mouth (21) of drawing can be with described sleeve (30) common rotation.
11. according to claim 1 take yarn unit it is characterised in that towards drawing the side of yarn mouth (21), described insertion
Part (25) has the inlet slope (31) leading to guide channel, and/or, in the dorsad described side drawing yarn mouth (21), described slotting
Enter part and there is the exit ramp (32) on guide channel extended line.
12. according to claim 11 take yarn unit it is characterised in that in the adjacent area leading to described doffing tube (23)
Interior, described inlet slope (31) and/or exit ramp (32) flush.
13. according to claim 1 take yarn unit it is characterised in that described insert (25) is at least part of is located at
Described yarn mouth (21) of drawing is internal.
14. according to claim 1 take yarn unit it is characterised in that in the yarn entry (15) drawing yarn mouth (21) and spiral shell
Between the extension (24) of rotation shape, the section (33) of linear doffing tube (23) is installed.
15. according to claim 1 take yarn unit it is characterised in that described insert (25) is by pottery, metal or mould
Material is made.
16. according to claim 1 take yarn unit it is characterised in that described spiral extension section number of total coils be 0.2 to
Between 5.
17. according to claim 16 take yarn unit it is characterised in that the design number of total coils of described spiral extension section is
1 to 3.
18. according to claim 1 take yarn unit it is characterised in that in a plan view, described spiral extension
Section (24) is an arc structure, and the longitudinal axis of described circular arc to described doffing tube (23) becomes a central angle a, at least 60 ° of its size.
19. according to claim 18 take yarn unit it is characterised in that at least 120 ° of described central angle a.
20. according to claim 18 take yarn unit it is characterised in that at least 180 ° of described central angle a.
21. rotor spinning machines being used for there is doffing tube (23) draw yarn mouth, the yarn (5) generating via described rotor spinning machine
By extracting in described doffing tube (23) it is characterised in that described doffing tube (23) has spiral helicine extension (24), by
Described spiral helicine extension (24), false twisting can be applied to described in draw in the internal yarn (5) of yarn mouth (21).
22. methods producing yarn (5) by the spinning position (1) of rotor spinning machine, wherein, in the spinning room (22) of spinning position (1),
By spinning rotor (4), the fibrous material being made up of single fiber (2) is twisted spun yarn (5), then, by drawing yarn mouth
(21) pass through doffing tube (23), yarn is extracted it is characterised in that prolonging in doffing tube (23) helical form from spinning room (22)
Stretch intersegmental part, described yarn (5) can be subject to moment of torsion control, and this moment of torsion makes described yarn (5) rotate around its longitudinal axis, wherein, turn
Dynamic direction is consistent with described yarn (5) by the rotation direction that spinning rotor obtains.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012101000 | 2012-02-08 | ||
| DE102012101000.5 | 2012-02-08 | ||
| DE102012108550.1 | 2012-09-13 | ||
| DE102012108550A DE102012108550A1 (en) | 2012-02-08 | 2012-09-13 | Garnabzugseinheit a rotor spinning machine and method for producing a yarn using a rotor spinning machine |
| PCT/EP2013/051989 WO2013117495A1 (en) | 2012-02-08 | 2013-02-01 | Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104114757A CN104114757A (en) | 2014-10-22 |
| CN104114757B true CN104114757B (en) | 2017-02-22 |
Family
ID=48794575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380008514.5A Expired - Fee Related CN104114757B (en) | 2012-02-08 | 2013-02-01 | Yarn draw-off unit of a rotor spinning machine and method for producing a yarn with the aid of a rotor spinning machine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20160010245A1 (en) |
| EP (1) | EP2812470B1 (en) |
| CN (1) | CN104114757B (en) |
| BR (1) | BR112014018553A8 (en) |
| DE (1) | DE102012108550A1 (en) |
| IN (1) | IN2014DN07505A (en) |
| WO (1) | WO2013117495A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014107181A1 (en) * | 2014-05-21 | 2015-11-26 | Maschinenfabrik Rieter Ag | False twist device for an open-end spinning device |
| DE102014119380A1 (en) * | 2014-12-22 | 2016-06-23 | Rieter Ingolstadt Gmbh | Rotor spinning machine with a variety of jobs and a suction device |
| ITUA20163006A1 (en) * | 2016-04-29 | 2017-10-29 | Savio Macch Tessili Spa | AIR-JET TYPE SPINNING DEVICE |
| CN107338522A (en) * | 2016-08-26 | 2017-11-10 | 桐乡守敬应用技术研究院有限公司 | A kind of rotor spinning Yarn guide device |
| DE102019103271A1 (en) * | 2019-02-11 | 2020-08-13 | Maschinenfabrik Rieter Ag | Spinneret for an air-jet spinning machine and method for opening such a machine |
| DE102022114064A1 (en) * | 2022-06-03 | 2023-12-14 | Saurer Spinning Solutions Gmbh & Co. Kg | Thread take-off nozzle and open-end spinning device with a thread take-off nozzle |
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| US4444003A (en) * | 1981-02-03 | 1984-04-24 | Murata Machinery Ltd. | Turbulent spinning apparatus for the production of yarn |
| US4773211A (en) * | 1986-03-19 | 1988-09-27 | W. Schlafhorst & Co. | Arrangement for open-end spinning |
| US5423177A (en) * | 1992-07-25 | 1995-06-13 | W. Schlafhorst Ag & Co. | Apparatus for open-end spinning |
| CN1422998A (en) * | 2001-12-06 | 2003-06-11 | W.施拉夫霍斯特公司 | Method and apparatus for spinning fabric short fiber using spinning rotor |
| CN1446959A (en) * | 2002-03-26 | 2003-10-08 | 里特机械公司 | Open-end spinning frame |
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| GB191310327A (en) * | 1913-05-02 | 1914-04-30 | Ernest Richard Royston | Improvements in or connected with Spinning Wool, Cotton, and other Fibres, or Fibrous Material. |
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| CS223961B2 (en) * | 1978-03-28 | 1983-11-25 | Alsacienne Constr Meca | Facility for knitting the released fibres |
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| DE3824283C1 (en) * | 1988-07-16 | 1989-10-26 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt, De | |
| JPH0345725A (en) * | 1989-07-11 | 1991-02-27 | Asahi Chem Ind Co Ltd | Twisting nozzle device for spinning apparatus |
-
2012
- 2012-09-13 DE DE102012108550A patent/DE102012108550A1/en not_active Withdrawn
-
2013
- 2013-02-01 CN CN201380008514.5A patent/CN104114757B/en not_active Expired - Fee Related
- 2013-02-01 EP EP13702999.7A patent/EP2812470B1/en active Active
- 2013-02-01 US US14/377,290 patent/US20160010245A1/en not_active Abandoned
- 2013-02-01 WO PCT/EP2013/051989 patent/WO2013117495A1/en active Application Filing
- 2013-02-01 IN IN7505DEN2014 patent/IN2014DN07505A/en unknown
- 2013-02-01 BR BR112014018553A patent/BR112014018553A8/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4110961A (en) * | 1976-10-19 | 1978-09-05 | Vyzkumny Ustav Bavlnarsky | Spinning unit of an open-end spinning machine |
| US4444003A (en) * | 1981-02-03 | 1984-04-24 | Murata Machinery Ltd. | Turbulent spinning apparatus for the production of yarn |
| US4773211A (en) * | 1986-03-19 | 1988-09-27 | W. Schlafhorst & Co. | Arrangement for open-end spinning |
| US5423177A (en) * | 1992-07-25 | 1995-06-13 | W. Schlafhorst Ag & Co. | Apparatus for open-end spinning |
| CN1422998A (en) * | 2001-12-06 | 2003-06-11 | W.施拉夫霍斯特公司 | Method and apparatus for spinning fabric short fiber using spinning rotor |
| CN1446959A (en) * | 2002-03-26 | 2003-10-08 | 里特机械公司 | Open-end spinning frame |
| CN1470691A (en) * | 2002-06-20 | 2004-01-28 | ����� | Yarn-resisting twisting head for open-end spinning apparatus |
| CN1776039A (en) * | 2004-11-17 | 2006-05-24 | 吕特英格纺织机械制造股份公司 | Yarn-withdrawing funnel of spinning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2812470A1 (en) | 2014-12-17 |
| EP2812470B1 (en) | 2018-04-11 |
| BR112014018553A2 (en) | 2017-06-20 |
| US20160010245A1 (en) | 2016-01-14 |
| BR112014018553A8 (en) | 2017-07-11 |
| WO2013117495A1 (en) | 2013-08-15 |
| DE102012108550A1 (en) | 2013-08-08 |
| CN104114757A (en) | 2014-10-22 |
| IN2014DN07505A (en) | 2015-04-24 |
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