This application is that international filing date is dividing an application of November 6, Chinese application number in 2003 are 200380108444.7, international application no is WO2004/044292 application.
Summary of the invention
According to the present invention, in the optimization drawing-off of drafting system and/or before the arrival beaming device, special-purpose thread-carrier is provided for this purpose, and this thread-carrier can make drafted fiber than still less disperseing can not cause marked change on each machine direction simultaneously on traditional drafting system.In one embodiment, utilize deflecting element to realize this point, the surface of deflecting element is covered by the part fiber at least, and therefore all fibres of a sliver is deflected with identical method and/or identical direction.This realizes by the rod prism-shaped deflecting element with basic uniform section that preferably described deflecting element is arranged to laterally face toward the flow direction of fibre stream and be disposed on the longitudinal direction of drawing-off cylinder.This thread-guide element directly is arranged in sliver by before the boundling element (position).Sliver direction that thread-guide element causes changes preferably 1.5
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In the multiple-roll drafting system, use according to spinning machine of the present invention, comprise two aprons at least 3 pairs of distortion rollers and a pair of roller, wherein in order to guide sliver by the as close as possible transferring roller of an apron ground, a retainer is guided a pair of transferring roller into, this retainer has the apron around thereon, it is characterized in that being used for the additional rod thread-carrier of described sliver or apron, this thread-carrier is arranged between apron and the transferring roller.
Described thread-carrier is recessed and protruding towards sliver towards transferring roller.
In a second embodiment, thread-carrier can be disposed between two top rollers of apron, makes when when look in the outside, makes described apron be subjected to recessed deflection by thread-carrier.
The additional thread-carrier that is used for sliver can be arranged in the throughput direction of sliver, in a draw zone or after a draw zone and before a cluster area, particularly at sliver by (position) before on the boundling element of beaming device.
The specific embodiment
Spinning machine is equipped with beaming device 1, beaming device 1 is connected in the drafting system 1a of spinning machine, beaming device 1 is characterised in that, the additional thread-carrier 34 that is used for sliver, additional thread-carrier 34 is disposed in the sliver transmission direction, draw zone 4,5 after and before cluster area, particularly before yarn 11 quilts are on the boundling element 19 of beaming device.
The feature of described machine also is:
Thread-carrier 34 is disposed in the main drawing area of multistage drafting device, before the transferring roller 2,
The thread-guide element 34 of thread-carrier is the prism-shaped bar that is arranged on the longitudinal direction of drawing-off cylinder, and described prism-shaped bar has the cross section of rounding on the function side,
Thread-guide element 34 is arranged to make it to pass connecting line or is tangential on clamping gap 23; Described clamping gap transferring roller 2 and top roller 2 ' between, top roller 2 ' press to described cylinder, described transmission bite is between the upper leather ring 5 and following apron 4 of drafting system 1a.
Sliver 11 or apron 5 have been deflected the several years, and particularly 1.5
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Thread-carrier directly be located in the 3rd top roller 2 of transferring roller 2 and drafting system ' between the place ahead in clamping gap 23, the described cylinder of the 3rd top roller 2 ' be pressed towards,
If desired, but the transferring roller 2 of drafting system 1a is made into the boundling element 19 of the drum surface with air permeable of beaming device 1,
Utilize vacuum system 15 on the sliver in the cluster area 13 11, aerodynamic effect to take place,
Thread-guide element 34 is installed on the keeper of apron by means of holding element 340, particularly is installed at the retainer 30 of the apron 4,5 of drafting system 1a,
Flat spring is connected to the end of thread-guide element 34, has fast connector in retainer 30 ends of the apron 5 of drafting system 1a,
The pad that has deflecting element 33 32 places on the edge of the thread-carrier 34 located retainers 30 of sliver 11, deflecting element 33 is on an edge of the retainer 30 of drafting system 1a upper leather ring 5, consider that sliver 11 is by every kind of situation on the throughput direction of drafting system 1a, thread-carrier 34 is arranged on before the transferring roller 2 of drafting system 1a, and other thread-carrier 34 ' be arranged on after the transferring roller 2 and before beaming device 1 with boundling element 19
Wherein can have or have with adding up above-mentioned each feature individually.
The drafting system 1a that contains beaming device 1 as shown in Figure 1, transmit sliver 11 through supply roll 42, supply roll 42 have first top roller 42 of pressing to described cylinder ', sliver 11 transmission by preliminary draw zone to have second top roller 3 ' intermediate roll 3.Intermediate roll 3 has the following apron 4 around it, and following apron 4 is driven by intermediate roll 3 and passes bridge 40.Have the top roller 3 of upper leather ring 5 ' and the charger 10 of retainer 30 by as shown in Figure 4 be pressed towards down apron 4.Upper leather ring 5 contact with described down apron 4 and by the driving of described apron down, and wherein the tension force that overcomes transferring roller 2 from the fiber of the sliver 11 of the preliminary draw zone between supply roll 42 and intermediate roll 3 is maintained at main drawing area.Transferring roller 2 is made into boundling element 19 in this exemplary embodiment, promptly makes the perforated drum with interior suction force.On the one hand upper leather ring 5 be looped around second top roller 3 ' around, and be looped around on the other hand the pad 32 that is located on the retainer 30 around.Thread-guide element 34 be arranged in from the transmission location of the following sliver 11 of apron 4 or upper leather ring 5 and have the 3rd top roller 2 ' transferring roller 2 between, thread-guide element 34 is deflection sliver 11 slightly as shown in Figure 1, realized the tension guiding of sliver 11 fibers thus, and prevented that particularly short fiber breaks away from from described sliver.The circular pin that has diameter between the 3-6mm especially preferably is used as thread-guide element 34.Thread-guide element 34 is positioned to the surface of as close as possible transferring roller 2 or boundling element 19, and distance is less than 1mm.By thread-guide element after 34 deflection several years, sliver is by on the surface of boundling element 19, the 3rd top roller 2 ' and the 4th top roller 1 ' clip position between be positioned on the boundling element 19 around the path.Cover screen cloth 19 above boundling element 19 ' guaranteed that the suction air that enters is directed into the axis that is parallel to transferring roller 2 as far as possible.Sliver is preferably twisted and is wrapped in above the yarn spool-holder tube by ring spinning apparatus 40 then.
Fig. 2 and 2a are presented near the amplification cross section of the device the thread-carrier 34, in angle [alpha]=1.5 that this place's sliver 11 is deflected
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0Yarn can be spun into the number of 3-100Ne, better is 3-50Ne, the feasible thread-guide element of once adjusting this thread-carrier 34 of 3-30Ne.Feed can comprise: the fiber-spinnable material that all are known, and have staple fibre part, particularly carded cotton, also have MMF, PES and blended yarn.Owing to being arranged, thread-carrier 34 realized good yarn qualities.Label among Fig. 2 and the 2a is similar to Fig. 1's.
Fig. 3 is presented at two embodiment that thread-carrier 34 is installed in the drafting system.The retainer 30 of guiding upper leather ring 5 is by securely but can be with second top roller 3 ' be installed in rotationally on the above-mentioned charger 10.In first exemplary embodiment of the thread-guide element of thread-carrier 34, the whole length of retainer 30 parts of this extend through Fig. 3.Each end of thread-guide element 34 is by holding element 340,340 ' supporting.Holding element 340 is connected the end of retainer 30 securely, for example, uses the retaining element 342 of pin or screw shaped.Holding element 340 can be made by spring steel, for example flat spring.By secured in alignment element 342 steady pin 342 is laterally entered in the hole of retainer end and make their quick assemblings.
According to second exemplary embodiment of the thread-carrier 34 of Fig. 3 right half, two holding elements 340,340 by having sliding part 342 in its end ', make relatively shorter thread-guide element 34 be disposed in pad 32 places on the right longitudinal edge of retainer 30.In the case, sliding part 342 directly is located in the sliding part 320 adjacent to pad 32.Described pad is used to guide upper leather ring 5, and this carries out deflection by the deflecting element between each sliding part 320 33.It is such that each sliding part 342 makes each sliding part 320 of pad as described, is shown in the three-dimensional view, and the distance between each sliding part 342 is greater than the distance between each sliding part 320.The holding element 340 that has sliding part 342 is adjacent with the pad 32 on the retainer 30, as shown in Figure 3.The pad 32 adjacent with retainer 30 show with three-dimensional view, and the short-range missile yarn element 34 with holding element 340 with solid/simple view shows.As already noted, the thread-guide element of thread-carrier 34 cylindrical shape prism-shaped element preferably.Thread-carrier 34 also can directly be installed on the deflecting element 33.
Another exemplary embodiment with drafting system of beaming device is shown in Fig. 4.Only shown to exert pressure to have top roller 3 ' intermediate roll 3 of (second top roller) and have the transferring roller 2 of top roller 2 ' (the 3rd top roller) for drafting system 1a by charger 10.Another cylinder 27 the 3rd top roller 2 ' and the 4th top roller 1 ' between, cylinder 27 be used to by the 3rd top roller 2 ' go to drive the 4th top roller 1 '.Opposite with the device of Fig. 1, transferring roller 2 is not made for the boundling element; Its is near left side, but the boundling element 19 of this place's air permeable apron form be looped around vacuum system 15 around.Boundling element 19 is moved forward along cluster area 13 by the 4th top roller 1 ' drive with sliver 11 or yarn 25.The boundling of sliver 11 in cluster area 13 takes place along the long narrow seam 17 of suction, and air is inhaled in the vacuum system 15 by long narrow seam 17.The 3rd top roller 2 ' or the axle 8 and 1 of the 4th top roller 21 ' by charger 10 supporting.Sliver 11 be conducted through second top roller 3 in the main drawing area of drafting system ' on upper leather ring 5 and the following apron 4 on the intermediate roll 3, thread-carrier 34 is arranged between apron 4 and 5 in known manner, thread-carrier 34 makes described yarn deflection 1.5
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0Between low-angle.Thread-guide element 34 can be fixed in the retainer 5 of upper leather ring 5 ', Fig. 3 described as contact.Sliver 11 can by from transferring roller 2 and press to the 3rd top roller 2 of transferring roller 2 ' between clamping gap 23 another thread-guide element 34 ' support, arrive cluster areas 13 until sliver 11.This thread-guide element can be configured to cylindrical rod, as the thread-guide element of describing in the example 34, or as dotted line show for flat, be the plane leader slightly, described plane leader extends along spinning machine in sliver 11 zones at least.As described above, first thread-guide element 34 has improved embracing and power of the fiber of drafting system in main drawing area between intermediate roll 3 and the transferring roller 2, it can be said that the second thread-guide element 34 ' sliver between transferring roller 2 and boundling element 19 the is played effect of guided plate.Beaming device 1 and the 4th top roller 1 ' between the second clamping gap 24 define the twisting of yarn 25, this is derived from the spinning apparatus of follow-up layout.Thread-carrier 34 should be arranged to: transferring roller to 2,2 ' clamping gap 23 and apron the connecting line between 4,5 the transmission equipment side bite is partly passed thread-guide element 34.
The surface condition of deflection or guiding should be selected according to required effect or raw material.Deflection can be mounted to fixing or rotating.Thread-guide element 34 also can be installed on the deflection bridge 40.As shown in Figure 5, thread-carrier 34 can be towards transferring roller 2,2 ' recessed and protruding towards sliver 11.As shown in Figure 6, thread-carrier 34 relative aprons 5 can be disposed in two top rollers 2 ', 3 ' between, therefore when causing recessed deflection by thread-carrier 34 when the outside is watched.Therefore can make apron can more close top roller 2 ', sliver 11 is directed and through long part, if not the words that increase.
According to Fig. 2 and 4, the additional thread-carrier 34 of sliver is disposed on the throughput direction of sliver, described sliver among draw zone 4,5 or afterwards and before cluster area, particularly at sliver 11 by before on the boundling element 19 of beaming device.
According to Fig. 7, thread-carrier 34 can use holding element 340a and 340c be installed in top roller 2 ', 2 axle goes up or is installed on the loading arm 344.