CN1488792A

CN1488792A - Fiber bundle condensing device and spinning machine

Info

Publication number: CN1488792A
Application number: CNA031567428A
Authority: CN
Inventors: 中野勉; 之; 药司诚; 河合泰之
Original assignee: Toyoda Automatic Loom Works Ltd
Current assignee: Toyota Industries Corp
Priority date: 2002-09-10
Filing date: 2003-09-08
Publication date: 2004-04-14
Anticipated expiration: 2023-09-08
Also published as: KR20040023522A; TW200408740A; JP2004100091A; TWI278543B; KR100551518B1; CN1309890C

Abstract

The fiber bundle-collecting device has a delivery part which is installed on the downstream side of a final delivery roller pair of a drafting device, and a sucking part S having a sucking hole formed at least so as to extend to the upstream side in the traveling direction of the fiber bundle based on a nipping point of the delivery part. The fiber bundle-collecting device has an air-permeable member constituting the delivery part and rotated along the sucking part S, and collects the fiber bundles drafted by the drafting device. The sucking part S is connected to a duct 44 through a connecting pipe 48, and more sucking devices 45 for reducing the pressure in the interior of the duct 44 are connected to the duct 44.

Description

Fiber bundling apparatus and spinning machine

Technical field

The present invention relates to a kind of fiber bundling apparatus and spinning machine, more specifically say and relate to a kind of fiber bundling apparatus that for example on the downstream of the drafting system (drawing-off part) of a spinning machine, is provided with, this fiber bundling apparatus is suitable for collecting the fibre bundle by this drafting system drawing-off, and relates to the spinning machine that is equipped with this fiber bundling apparatus.

Background technology

Fig. 7 illustrates the example (for example JP2000-73224A) of the spinning machine of a disclosed fiber bundling apparatus that is equipped with such type.A kind of spinning machine is a plurality of spinning of equipment station 71 on the both sides of this machine bottom, this fiber bundling apparatus is equipped with the

suction profile

72 and 73 with a plurality of suctions slit (suction socket), this suction slit is provided with the station 71 of should spinning, and this suction slit applies swabbing action to the fibre bundle by the drafting system drawing-off.This

suction profile

72 and 73 is connected respectively to aspirator 76 and 77 by suction tube 74 and 75.Each aspirator 76 and 77 is equipped with a blower fan 79 by motor 78 drivings.In this fiber bundling apparatus, this aspirator 76 and 77 is provided for the spinning station 71 of a fixed number respectively, make the swabbing pressure difference on the suction slit that acts on this single spinning station 71 be lowered, thereby be easy to reduce the level of yarn qualities error to a permission that obtains by spinning.

Whenever in addition, according to JP2000-73224A, in order to detect vacuum state and yarn qualities, device for pressure measurement is provided for this

suction tube

74 and 75 respectively, is making a mistake operation, can stop the operation of corresponding machine part.

With make the shared suction channel in all spinning stations remain on a vacuum state by a single vacuum blower fan and structure that fiber bundling apparatus is connected on this suction channel is compared, in JP2000-73224A, in the disclosed device, reduce the level of each spinning station 71 easily by yarn qualities error to a permission of spinning acquisition.Yet, each the numerical limitations of aspirator 76,77 of

suction profile

72,73 swabbing actions that is used to give in groups spinning station 71 is one, to such an extent as to, do not produce any swabbing action for the suction profile of distributing to this aspirator when an aspirator out of order the time.Therefore, when continuing spinning, exceeding tolerance limit at the yarn that obtains under the no swabbing action with under swabbing action by the quality of yarn error of these spinning station 71 acquisitions by spinning station 71.

According to above-mentioned publication, above-mentioned problem is respectively applied for the device for pressure measurement of this

suction tube

74 and 75 and stops corresponding machine part when the faulty operation by setting, solves above-mentioned problem.Yet this publication is not mentioned the mechanism that is used to stop corresponding machine part.In addition, when spinning machine is not a so-called single spindle when driving type, the mechanism that being used to of providing stops corresponding machine part will cause this means the increase of inevitable cost for quite complicated mechanism.

In addition, in the disclosed device of JP2000-73224A,

single suction tube

74,75 is connected on the

suction profile

72,73, each

suction profile

72,73 corresponding 8 spinning station 71.Increase along with receive spinning station 71 numbers of swabbing action from a

suction profile

72,73 is increasing near the spinning station 71 of this

suction tube

74,75 with away from the swabbing action error between the spinning station 71 of this

suction tube

74,75 more.Therefore, mass deviation is tended to produce in the yarn that is obtained by spinning by difference spinning station 71.In the device of JP200073224A, this

suction tube

74 and 75 is directly connected to this aspirator 76 and 77, be difficult to make increase and be connected to this aspirator 76, suction tube 74 on 77,75 number is so that make the decreased number of reception from the spinning station 71 of the swabbing action of a suction profile 72,73.Do not increase by the number that increases aspirator in addition be connected to a suction tube on the aspirator number to solve the increase of suction tube number, cause cost to increase.

Summary of the invention

The problems referred to above at prior art are carried out the present invention.A target of the present invention is for a spinning machine one fiber bundling apparatus to be set, in this fiber bundling apparatus, even when generation is unusual in any aspirator, also can under the swabbing action of aspirator, remain in the tolerance band by the quality error that spins between the yarn that obtains by spindle unit (spinning station) by the yarn of spinning acquisition with by other spindle unit.

According to the present invention, for the fibre bundle of collecting by the drawing-off partial draft of a spinning machine is provided with a fiber bundling apparatus, this device comprises: one is arranged on the right downstream of the last delivery roller of drawing-off part and is equipped with the output of a clamping roller; One has the pumping unit of a slidingsurface, and this slidingsurface is equipped with and is arranged so that about the suction socket of fibre bundle moving direction towards the upstream side extension of the bite of this output; With an air-permeable apron that constitutes this output and when contacting this slidingsurface, rotate, this pumping unit has a plurality of suction socket, this suction socket corresponding a plurality of spindles unit respectively forms, a plurality of suction socket are communicated with a public conduit, and this conduit remains on negative pressure state by a plurality of aspirators.

Therefore, in the present invention, in the suction socket of a plurality of these pumping units,, produced swabbing action owing to the negative pressure in the conduit.This conduit remains under the negative pressure by a plurality of aspirators, so that even some aspirators are not normal and be stopped, also can produce negative pressure owing to other aspirator and can keep yarn qualities by the spinning acquisition in tolerance band.

Description of drawings

Fig. 1 is that plan view is shown in the letter that the structure of the aspirator of an embodiment among the present invention and conduit is shown;

Fig. 2 is that side view is shown in the partial cross section letter that a drafting system and a fiber bundling apparatus are shown;

Fig. 3 is the part schematic diagram that the relation of pumping unit and following clamping roller is shown;

Fig. 4 a is the part schematic diagram of the fiber bundling apparatus seen from the front side of the fibre bundle direction of motion;

Fig. 4 b is the front view of a rotating shaft;

Fig. 5 is the part zoomed-in view of Fig. 2;

Fig. 6 is the part perspective view of a tube connector; With

Fig. 7 is that plan view is shown in the letter of a conventional equipment.

Preferred implementation

With reference to Fig. 1-6 one embodiment of the present of invention are described below.Fig. 1 is for illustrating fiber bundling apparatus, and plan view is shown in the letter of the relation of aspirator and pumping unit, and Fig. 2 is that side view is shown in the partial cross section letter that illustrates on the side of a drafting system.Fig. 3 is the part schematic diagram of this drafting system, has saved the top roller side simultaneously, shows the pumping unit of this fiber bundling apparatus and the relation between the following clamping roller.Fig. 4 a is a schematic diagram (looking from the direction front side of moving this drafting system about fibre bundle) of extracting the fiber bundling apparatus that direction sees at a bite along fiber out.

As shown in Figure 2, be one three row's structures of bottom rolls 13 and a back bottom roller 14 in the middle of the anterior bottom roll 12, to be housed as the drafting system 11 of drawing-off part.This front portion bottom roll 12 is supported on a precalculated position, corresponding to a roller bearing 15 that constitutes machine bottom frame, this centre bottom roll and back bottom roller 13 and 14 support by the mid portion that is fastened to support 13a in this roller bearing 15 and 14a, so that allow to adjust along the longitudinal direction the position.This support 13a and 14a are fastened to the precalculated position by the screw bolt and nut (all not illustrating) that penetrates in the elongated hole that is formed in this roller bearing 15.Once apron 16 is around once stretcher 17 and middle bottom roll 13 are reeled.

By the mid portion of this top roller support component, an anterior top roller 19, a middle top roller 29 and a rear portion top roller 21, mutually should anterior bottom roll 12, the position of middle bottom roll 13 and back bottom roller 14 be supported by a weight arm 18.Each top roller 19-21 is supported in two spindle unit.It is right that this front portion bottom roll 12 and anterior top roller 19 constitute the last conveying roller of this drafting system 11.

On this weight arm 18, be provided with a lever 18a so that can be rotated to a pressure position and an off-position.Be arranged in the situation of the pressure position on the framework 18b that lever 18a leans against the weight arm 18 shown in Fig. 2 at lever 18a, keep a top roller 19-21 by these weight arm 18 supports to be in the lockup state of the pressure position (yarning position) of pressing to this bottom roll 12,13 and 14.Under the situation above the position shown in Fig. 2 forwards to, cancelled lockup state at this lever 18a.

As shown in Figure 2, a fiber bundling apparatus 30 is arranged on the right downstream of the last conveying roller of this drafting system 11.This fiber bundling apparatus 30 is equipped with a transport portion 31, as suction tube 32 and 33 and one air-permeable apron 34 as ventilated element of pumping unit S.This transport portion 31 is included in the following clamping roller 35a that forms on the rotating shaft 35, this rotating shaft 35 is parallel to this front portion bottom roll 12 and is provided with, and this transport portion comprises that also a mid portion by this air-permeable apron 34 is pressed against the last clamping roller 31a on this time clamping roller 35a.

Shown in Fig. 4 a, in the fiber bundling apparatus 30 of this embodiment, in per two spindles the top roller 19-21 of similar drafting system 11 on clamping roller 31a, the mid portion by a support component 36 (in Fig. 2 and 5) is supported by this weight arm 18.Notice that in this embodiment, this support component 36 forms an integral body with the support component of this front portion top roller 19.

On the other hand, on the bottom side of this fiber bundling apparatus 30, be arranged on half the spindle between the roller bearing 15 of adjacent drafting system 11, promptly 4 spindles constitute a unit.Shown in Fig. 3, the place, centre position of the roller bearing 15 that the interval of being scheduled to longitudinal direction bottom machine is provided with, one support arm 38 is set to such state, promptly its bottom end is supported by a pillar 37 in this state, this pillar 37 extends along the longitudinal direction of this machine bottom, and a rotating shaft 35 is supported between this roller bearing 15 and the support arm 38.

Shown in Fig. 4 b, this rotating shaft 35 forms with the predetermined length corresponding to a plurality of spindles (being 4 spindles in this embodiment), and a bearing 39 is fastened to the both sides of rotating shaft 35.This bearing 39 is coupled in the end plug 40 then, shown in Fig. 4 a, this end plug 40 is supported among the mating part 40a by support section 15a and the 38a that is arranged in this roller bearing 15 and this support arm 38, and this rotating shaft 35 rotatably is supported between this roller bearing 15 and the support arm 38 thus.This support section 15a and 38a form and can support two end plugs 40 on the end that is installed to this adjacent rotating shaft 35.

Form this support section 15a by a block that is fixed on this roller bearing 15, and this support section 15a has the fit that is inclined upwardly and extends on the front side of this machine bottom.This support section 38a also has the fit that is inclined upwardly and extends on the front side of this machine bottom.Then, end plug 40 has a mating part 40a that can cooperate with fit, and forms and can this support section 15a and 38a clamping in this mating part 40a be put in place by a single motion.

Rotating shaft 35 has in its longitudinal center that be arranged to can be with the gear 41 of this rotating shaft 35 rotations, as shown in Figure 3, this front portion bottom roll 12 have with the gear parts 12a of these gear 41 opposed positions.In addition, idler gear 43 rotations of meshing with this gear parts 12a and gear 41 are supported on the support arm 42, are similar to this support arm 38, and the bottom end of this support arm 42 is fixed on this pillar 37.Moment of torsion that promptly should front portion bottom roll 12 is by gear parts 12a, and idler gear 43 and gear 41 are delivered on the rotating shaft 35.

As illustrated in fig. 1 and 2, in the machine of this spinning machine bottom, the longitudinal direction (along the direction perpendicular to the plane of Fig. 2) that the conduit 44 that is used for fiber bundling apparatus 30 is arranged to along machine extends.As shown in Figure 1, a plurality of conduits 44 are arranged to along the longitudinal direction extension of the machine bottom of this spinning machine.In this embodiment, the length of each conduit 44 is corresponding to 24 spindle unit of a side and 48 spindle unit of both sides.Be used to keep a plurality of (being 3 in this embodiment) aspirator 45 of negative pressure to comprise blower motor in each conduit 44, wherein blower fan 47a is driven by motor 47.As shown in Figure 2, conduit 44 is arranged on the last rear portion side of this drafting system 11 and at the center of the machine bottom of this spinning machine, this aspirator 45 is arranged on below this conduit 44.As shown in Figure 1, for per 4 spindle unit are provided with 4 pumping unit S so that being parallel to this conduit 44 extends, and these 4 pumping unit S are connected on this conduit 44 by tube connector 48.Each tube connector 48 point place therein has a corrugated portion 49 (only shown in Figure 2).In Fig. 1, this suction tube 32 and 33 integral body are expressed as this pumping unit S, and are formed in each suction tube 32 and 33 and suction socket that describe below is represented with the dotted line circle.

As shown in Figure 6, be formed with mating holes 48a and 48b in the leading section of this tube connector 48, this suction tube 32 and 33 is releasably attached on this mating holes 48a and the 48b.In addition, in the right side and the left side of this tube connector 48, the first end of this suction tube 32 and 33 is installed removably, this suction tube 32 and 33 the second end and this end plug 40 are combined together.Be formed with the mating holes 40b of a fitted bearing 39 on this external this end plug 40.Fig. 6 is that perspective view is shown in the part letter, shows the state on the side that this suction tube 32 and 33 is installed to this tube connector 48.

As shown in Figure 3, this suction tube 32 has a slidingsurface 32b, and this slidingsurface 32b has the suction socket 32a of seam shape, and this suction socket 32a extends on the upstream side of following clamping roller 35a and its bite in the direction that this fibre bundle (batting) F moves.This suction tube 33 has a slidingsurface 33b, and this slidingsurface 33b has the suction socket 33b of seam shape, and this suction socket is extended on the downstream.Then shown in Fig. 3 and 5, this suction tube 32 is arranged to be located on the upstream side of bite of this this time of fibre bundle moving direction clamping roller 35a, and this suction tube 33 is arranged to be located on the downstream of bite of this this time of fibre bundle moving direction clamping roller 35a.Notice that in Fig. 3, this air-permeable apron 34 is represented to be convenient to see this suction socket 32a and 33a by dotted line.

This suction tube 32 is formed in such structure, promptly makes these suction tubes 32 can guide this air-permeable apron 34 so that they are taken near the bite of this front portion bottom roll 12 and anterior top roller 19.This suction tube 33 is arranged to will be from the fiber bundle F biasing of these air-permeable apron 34 outputs by certain front roller angle of contact.The part that term " front roller angle of contact " is meant the center of curvature that connects this curved surfaces and bite with is connected the center of curvature and is used for the leading of fiber bundle F from the angle of the part formation of point, along this curved surfaces this fibre bundle (flock) by bite be directed into that leading offs normal puts.This air-permeable apron 34 is wound into and contacts with 33 parts with this suction tube 32 and partly contact with this time clamping roller 35a, and along with this time clamping roller 35a rotates the slip one side rotation on this slidingsurface 32b and 33b of this air-permeable apron one side.In this embodiment, air-permeable apron 34 is made of the Woven fabric that can guarantee suitable breathable.

As Fig. 2, shown in the 4A etc., the anterior end of suction nozzle 50 of the pneumatic means of a single type is set near the bottom of each suction tube 33, this pneumatic means is suitable for when yarn breakage suction from the fiber bundle F of this drafting system 11.The bottom end of this suction nozzle 50 is connected on the shared suction tube of all spindles 51.

Operation as the device of above-mentioned structure will be described below.

When operation during this spinning machine, fiber bundle F through between this bottom roll 12-14 of drafting system 11 and the top roller 19-21 so that drawing-off, and be directed into this fiber bundling apparatus 30 then.The last clamping roller 31a of this transport portion 31 is to rotate than the superficial velocity of this front portion bottom roll and the slightly high speed of superficial velocity of anterior top roller 19; After the bite by the transport portion under the suitable tension 31, this fiber bundle F is simultaneously twisted one side and is biased and moves downstream.

In addition, the swabbing action of this conduit 44 is applied on this suction tube 32 and 33 by this tube connector 48, is formed on suction socket 32a on this slidingsurface 32b and the 33b and the swabbing action of 33a and is applied on this fiber bundle F by this air-permeable apron 34.Fiber bundle F simultaneously is attracted and is collected in corresponding to the position of suction socket 32a and 33a and simultaneously moves then.Because suction socket 32a and 33a are present in respectively on the upstream side and downstream of bite of this output 31, this fiber bundle F in addition after by this bite one side under swabbing action, be collected one side and move.Therefore, separately being limited so that suppress the generation of fine hair and waste cotton of fiber located in two of each fiber bundle F ends after by this bite, thereby obtains to improve aspect yarn qualities at all.

Each conduit 44 remains under the negative pressure by a plurality of (3) aspirator 45.Even therefore an aspirator 45 stops owing to producing unusual (not working) therein, negative pressure in these conduit 44 inside also can remain on a predeterminated level by the work of other aspirator 45, thereby guarantees to be used to collect the swabbing action of the suction socket 32a and the 33a of fiber bundle F.If, will damage quality of yarn not having to continue spinning under the swabbing action.Yet be different from existing apparatus, even stop owing to fault causes an aspirator 45, the device of this embodiment can be guaranteed the swabbing action of this suction socket 32a and 33a, has therefore limited the destruction to yarn qualities.

Provide the advantage of this embodiment below.

A) this suction tube 32 and 33 is equipped with a plurality of suction socket 32a and 33a corresponding to each spindle unit, this suction socket 32a and 33a apply suction on the fiber bundle F after the drawing-off, corresponding to each spindle unit, this suction tube 32 and 33 is connected on the conduit 44 by tube connector 48, and each conduit 44 remains under the negative pressure by a plurality of aspirators 45.Therefore unlike traditional device, when some aspirators 45 owing to unusually stopping, this embodiment can guarantee to cause owing to the negative pressure that produces by remaining aspirator 45 swabbing action of this suction socket 32a and 33a, thereby the yarn qualities that keeps spinning is in tolerance limit.

B) a plurality of conduits 44 are arranged to along the longitudinal direction extension of the machine bottom of this spinning machine.With single conduit 44 is set so that the structure that extends along the longitudinal direction of the machine of this spinning machine bottom is compared the easier installation of carrying out this conduit 44.In addition, when some midpoint bottom the machine of spinning machine are provided with a pillar, avoid the interference of pillar and conduit easily.

C) on the fiber bundle F of a plurality of spindles unit, apply in the structure of suction at single suction tube 32,33, near the suction socket 32a of this tube connector 48,33a and away from the suction socket 32a of this tube connector 48, the suction difference between the 33a is very big.In addition, except the suction difference between the spindle unit, single suction tube 32, the increase of 33 length has related to the infringement to the operation that mounts and dismounts this machine bottom and maintenance, make preferably to have and be used for four spindle unit suction socket 32a, 33a for single suction tube 32,33.In this case, increased the quantity of tube connector 48.Yet being connected on this aspirator 45, tube connector 48 is not connected on the conduit 44.Even therefore increase the number of this tube connector 48, also can easily connect this suction tube 32,33 and conduit 44 under the same conditions, make the yarn qualities of each spindle unit spinning almost not have deviation.

D) conduit 44 that is used for fiber bundling apparatus 30 is independent of a pneumatic tube 51 and is provided with.Therefore can in these conduits 44, keep a predetermined negative pressure, and can not relate to the increase of aspirator size.

E) this conduit is arranged on the top trailing flank and the center bottom the machine of this spinning machine of this drafting system 11, and this tube connector 48 is arranged in this bottom roll 12-14 and goes up extension.Therefore be arranged so that in the spinning machine that extends along the longitudinal direction of the machine bottom of this spinning machine at pilot manifold 51, can easily guarantee the construction location of this conduit 44.In addition, the tube connector 48 of connecting duct 44 and suction tube 32,33 is not easy to interfere with other element, thereby carries out fitting operation and maintenance operation easily.

F) this suction tube 32,33 are installed on two sides of each tube connector 48 symmetrically, if make same number of suction socket 32a, 33a is set up, then be installed on the side of each tube connector 48 situation with suction tube 32 and 33 and compare and reduced at suction socket 32a, the swabbing action between the 33a is poor.In addition, be easy to change air-permeable apron 34.

G) because the upstream that collecting action that these suction socket 33a causes is delivered to this bite to a certain extent is set on the downstream side of this bite, the dispersion of this fiber bundle F till arriving bite is restricted.Therefore this collecting action is further improved.

The above embodiments should not done to limit and understand.It for example can also be following structure.

Be provided for detecting any unusual a kind of abnormal detector in aspirator.According to anomaly detection signal, stop producing some unusual aspirators from this abnormal detector.In addition, can also adopt a kind of structure, in this structure, other the normal aspirator that is connected to the conduit that links to each other with unusual aspirator is driven and makes its performance be enhanced.For example, pointed as the chain-dotted line among Fig. 1, each aspirator 45 equipment one is as a kind of abnormality detection sensor 52 that is used for the abnormal detector of this motor 47.This abnormality detection sensor 52 comprises that one for example is used for the speed probe of the driving shaft of this motor 47.In addition, each motor 47 is configured to and can be controlled independently by a control device (not shown).Then according to anomaly detection signal from this abnormality detection sensor 52, this control device has stopped producing unusual aspirator 45, and controls and make other performance that is connected to the aspirator on the conduit 44 that links to each other with this aspirator 45 be enhanced.Having produced this unusual aspirator 45 is then keeped in repair when stopping doff.If in any aspirator 45, produce unusual, then the negative pressure in this conduit 44 remains in the tolerance limit, even it also is the same that this aspirator 45 stops, making and to continue to spin till the predetermined doff time, thereby the yarn qualities that obtains by spinning is stable.

If adopt such structure, in this structure, can control each motor 47 that is connected with same catheter 44, rather than each motor 47 is independently controlled, and then can produce the performance that strengthens other aspirator when unusual in any aspirator 45.For example when driving this motor 47, can a converter be set for each motor 47 that is connected on the identical conduit 44 by converter.In this case, compare control and the structure that has obtained simplification with the situation that each motor 47 is independently controlled.

Can also adopt a kind of structure, in this structure, be used for detecting at the unusual abnormal detector of this aspirator 45 and be arranged to stop the spinning to be undertaken by all spindle unit according to anomaly detection signal from abnormal detector.For example, shown in chain-dotted line among Fig. 1, for each aspirator 45 is provided with an abnormality detection sensor 52 as the abnormal detector of this motor 47.According to the anomaly detection signal from this abnormality detection sensor 52, the control device of controlling this spinning machine begins to control the operation that stops this spinning machine then.After the operation that stops this spinning machine, repair unusual aspirator 45.In this situation, when generation is unusual in any aspirator 45, stop the spinning of all spindle unit according to anomaly detection signal, move long time in abnormality continuously so that can prevent the operation of spinning machine from this abnormal detector.In addition, can repair this unusual aspirator in the stage very early.

Drive in the spinning machine of type these spindles as the spindle unit of spinning machine by single motor drive at so-called single spindle, in this case, can also adopt a kind of structure, promptly in this structure, drive and the suction tube 32 that receives from the swabbing action of conduit 44, the spindle of the spindle unit of 33 correspondences, this conduit 44 links to each other with unusual aspirator 45.Continue spinning till the predetermined doff time by other spindle unit then.In this situation, to compare with the situation that stops to spin all spindle unit, the number of the spindle unit that stops to spin during batching is reduced.

The length of each conduit 44 needn't be corresponding at 48 spindles on the both sides and 24 spindles on a side; Spindle unit that can a corresponding suitable number.In this case, preferably be 8 multiple to number that should the spindle unit.

Extending except a plurality of conduits 44 are provided so that along the longitudinal direction of the machine of this spinning machine bottom, can also provide only conduit that on the whole length of the machine bottom of this spinning machine, extends.

The position of this conduit 44 be not limited to this drafting system 11 the back and above.They can also be arranged on the back of this drafting system 11 or lower side and below.

Except by being arranged on outside these suction tube 32,33 shared these conduits 44 on these motor-driven two sides of spinning, it is two rows that this conduit can also be set, and extend along the longitudinal direction of the machine bottom of this spinning machine in corresponding right side and left side.

Except rotating shaft 35 and suction tube 32,33 are arranged to can also adopt a kind of structure, in this structure outside the structure of a unit of formation, 4 spindle unit, the corresponding unit of the spindle number of unit that adjacent roller bearing is 15 (for example 8), perhaps 2 spindle unit constitute a unit.The spindle unit that for all unit, always must not have in addition, similar number; The spindle number of unit that adjacent roller bearing is 15 can also differ from one another (for example 6 and 2), and therefore the unit of two kinds of correspondences is provided.

Except forming outside the suction tube 32,33 as independent component, two suction tubes can be formed an integral body, opposed side of clamping roller 31a is an arc on this.

This suction tube 32,33 can also be formed on this tube connector 48 opposed lateral ends places and seal.In this situation, this end plug 40 needn't seal this end, suction tube 32,33 road, only needs the mating part of the end cooperation of setting and this suction tube 32,33, thereby is easy to make.

Except forming the air-permeable apron 34 that Woven fabric or knit goods constitutes, can also form the air-permeable apron that the perforation resin that is made of rubber or elastic resin is made.

This suction tube 32,33 that constitutes this pumping unit can also form an integral body with tube connector 48.

Except upstream side and downstream at the bite of this fiber bundle F are provided with this suction socket 32a, outside the structure of 33a, can also adopt a kind of structure, this suction socket 32a only is arranged on the upstream side of this bite in this structure.In this case, do not have the suction tube 33 of suction socket 33a by use, this is produced and installation method can be basic identical.Can remove suction tube 33 in addition and between this suction tube 32 and following clamping roller 35a, reel this air-permeable apron 34.

As a kind of structure that is used to drive this air-permeable apron 34, can adopt following structure.This suction tube 32,33 and following clamping roller 35a are removed, and it is avette suction tube that the cross section is set, and its suction socket forms in this suction channel pre-position, and this air-permeable apron 34 is reeled around this suction channel outward flange slidably.Then, last clamping roller 31a can be driven effectively, and one side simultaneously is driven with these air-permeable apron 34 press contacts, thereby drives this air-permeable apron 34.

The structure of this aspirator is not limited to the structure that motor 47 drives blower fan 47a.For example can also use drawdown pump (vavuum pump).This vavuum pump can be the pump of rotation type or the pump of reciprocating motion type.

As this pneumatic means, can also adopt a kind of structure of groove type, replace the structure of single bleed type.

The drafting system that the present invention not only is used for a spinning machine also is used for the drafting system of the spinning machine of other type.

As above described in detail, according to the present invention, even produce unusually in these aspirators any one, the yarn that also can remain on this Yarn-spinning spindle unit (spindle station) spinning under the swabbing action of aspirator is in the tolerance limit with the mass discrepancy that other Yarn-spinning spindle unit spinning moves between the yarn.

Claims

1. fiber bundling apparatus that is used to collect by the fibre bundle of the drawing-off partial draft of spinning machine comprises: be arranged on the right downstream of the last delivery roller of this drawing-off part and be equipped with the output of a clamping roller; One has the pumping unit of a slidingsurface, and this slidingsurface is equipped with is arranged to the suction socket of extending towards the upstream side of the bite of this output about the fibre bundle moving direction; Contact the air-permeable apron of sliding with this output of formation and with this slidingsurface, that this pumping unit has the corresponding a plurality of spindles of an a plurality of difference unit and the suction socket that forms, a plurality of suction socket link to each other with a common conduit, and this conduit remains under the negative pressure by a plurality of aspirators.

2. fiber bundling apparatus according to claim 1, wherein this pumping unit has a plurality of suction tubes, and this suction tube has a plurality of suction socket respectively, and this pumping unit also has and a plurality ofly respectively these suction tubes is connected to supravasal tube connector.

3. according to claim 1 or 2 described fiber bundling apparatus, wherein the slidingsurface of this pumping unit also comprises and is arranged to the suction socket of extending about the downstream of the bite of this output towards the fibre bundle moving direction.

4. according to each described fiber bundling apparatus of claim 1-3, wherein the longitudinal direction along the machine bottom of this spinning machine is provided with a plurality of conduits.

5. according to each described fiber bundling apparatus of claim 1-4, also comprise any unusual abnormal detector that is used for detecting at a plurality of aspirators, when this abnormal detector in these aspirators any one detects when unusual, then stop unusual aspirator, the conduit that links to each other with the aspirator that therefore stops to be connected to this supravasal aspirator normally by other and to remain under the negative pressure.

6. fiber bundling apparatus according to claim 5, wherein each aspirator comprises that a sucktion fan and is used to rotate the motor that drives this sucktion fan, this abnormal detector comprises that one is used to detect the sensor of the rotating speed of each motor.

7. spinning machine that is equipped with according to each described fiber bundling apparatus of claim 1-6.

8. spinning machine that is equipped with according to each described fiber bundling apparatus of claim 1-4, comprise any unusual abnormal detector that is used for detecting at a plurality of aspirators, when this abnormal detector detects unusual in these aspirators any one, stop the spinning that all spindle unit carry out.

9. spinning machine according to claim 8, wherein each aspirator comprises that a sucktion fan and being used to rotates the motor that drives this sucktion fan, this abnormal detector comprises that one is used to detect the sensor of the rotating speed of each motor.