CN103014934B

CN103014934B - Spinning unit and spinning machine

Info

Publication number: CN103014934B
Application number: CN201210199292.7A
Authority: CN
Inventors: 冈正毅
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2011-09-20
Filing date: 2012-06-12
Publication date: 2016-06-08
Anticipated expiration: 2032-06-12
Also published as: JP2013067873A; EP2573225A2; EP2573225B1; EP2573225A3; CN103014934A

Abstract

The present invention provides a kind of spinning unit and spinning machine. Spinning unit has: the drafting assembly of supply spinning yarn and spinning apparatus; Wind2 spinning yarn being wound in package; The yarn accumulation device of accumulation spinning yarn between yarn feeding device and wind2. Yarn accumulation device has: yarn accumulation roller (51) of winding spinning yarn; With the first restrictions (72), this first restrictions (72) is configured to relative with the base end part (52a) of the winding starting side of the yarn reserving portion (52) of winding spinning yarn in yarn accumulation roller (51), and when spinning yarn is cut-off in spinning apparatus side, following situation is limited, that is: the yarn ends of the spinning yarn swung in base end part (52a) side is prior to the spinning yarn situation that forward end (52b) side is moved from the unwinding of leading section (52b) side of yarn reserving portion (52).

Description

Spinning unit and spinning machine

Technical field

The present invention relates to the spinning unit generating spinning yarn and be wound in package by this spinning yarn and the spinning machine with multiple such spinning unit.

Background technology

Spinning unit known at present has: the yarn feeding device of supply spinning yarn; Wind2 spinning yarn being wound in package; Such as, by spinning yarn being wound on yarn accumulation roller the yarn accumulation device of accumulation spinning yarn (with reference to Japanese Unexamined Patent Publication 2010-174421 publication) between yarn feeding device and wind2.

In spinning unit as described above, when spinning yarn is cut-off, if the yarn ends of spinning yarn moves to the part beyond making a reservation in yarn accumulation roller, then bring obstruction may to the smooth and easy action of spinning unit hereafter.

Summary of the invention

It is an object of the invention to provide the movement of a kind of yarn ends that can control spinning yarn when spinning yarn is cut-off thus realize the spinning unit of action smoothly and there is the spinning machine of multiple such spinning unit.

The spinning unit of the present invention has: the yarn feeding device of supply spinning yarn; Wind2 spinning yarn being wound in package; The yarn accumulation device of accumulation spinning yarn between yarn feeding device and wind2. Yarn accumulation device has: the yarn accumulation roller of winding spinning yarn; With the first restrictions, the base end part of the winding starting side that this first restrictions is configured to the yarn reserving portion with the spinning yarn that reels in yarn accumulation roller is relative, and when spinning yarn is cut-off in yarn feeding device side, following situation is limited, that is: the yarn ends of the spinning yarn swung in base end part side is prior to the spinning yarn situation that forward end side is moved from the unwinding of the side, leading section of yarn reserving portion.

In this spinning unit, when spinning yarn is cut-off in yarn feeding device side, by the first restrictions, the movement of the yarn ends of the spinning yarn swung in the base end part side of yarn reserving portion to the side, leading section of yarn reserving portion is limited. Consequently, it is possible to prevent yarn ends to be wrapped in the unwinding smoothly hindering the leading section side of spinning yarn from yarn reserving portion in the spinning yarn of the side, leading section being wound in yarn reserving portion. Thus, by this spinning unit, it is possible to the action of the yarn ends of spinning yarn when spinning yarn is cut-off controls such that it is able to realize action smoothly.

Yarn accumulation device also has the attracting mechanism of the attraction stream producing air in relative with yarn accumulation roller the suction port configured, the downstream side of the first restrictions in the sense of rotation of yarn accumulation roller when suction port can be positioned at winding spinning yarn.The yarn ends of spinning yarn owing to swinging in the base end part side of yarn reserving portion fully accepts to attract the effect of stream, so, it is possible to reliably remove the fiber flock of this yarn ends. And, it is possible to prevent yarn ends to be wrapped in around suction port.

Yarn accumulation device can also have the 2nd restrictions. 2nd restrictions is configured to relative with the base end part of yarn reserving portion, and when spinning yarn is cut-off in yarn feeding device side, following situation is limited, that is: the yarn ends of the spinning yarn swung in base end part side is prior to the spinning yarn unwinding of end side and situation that forward end side is moved in the past. The downstream side of the suction port in the sense of rotation of yarn accumulation roller when the 2nd restrictions is positioned at winding spinning yarn. The yarn ends of spinning yarn owing to swinging in the base end part side of yarn reserving portion is subject to attracting the effect of stream more fully, so, it is possible to remove the fiber flock of this yarn ends more reliably. And, it is possible to prevent yarn ends to be wrapped in around suction port further.

Yarn accumulation device can also have the 3rd restrictions. 3rd restrictions is configured to relative with yarn reserving portion, and when spinning yarn is cut-off in wind2 side, following situation is limited, that is: the situation that the yarn ends of the spinning yarn swung in side, leading section moves to base end part side from the unwinding of base end part side prior to spinning yarn. When spinning yarn is when wind2 side is cut-off, rotate making yarn accumulation roller so that when spinning yarn is from the base end part side unwinding of yarn reserving portion, by the 3rd restrictions, the movement of the yarn ends of the spinning yarn swung in the side, leading section of yarn reserving portion to the base end part side of yarn reserving portion is limited. Consequently, it is possible to prevent yarn ends to be wrapped in the unwinding smoothly hindering the base end part side of spinning yarn from yarn reserving portion in the spinning yarn of the base end part side being wound in yarn reserving portion.

3rd restrictions can extend along the surface of yarn reserving portion to the direction almost parallel with the rotation centerline direction of yarn accumulation roller. Consequently, it is possible to prevent yarn ends to be wrapped in the unwinding smoothly hindering the base end part side of spinning yarn from yarn reserving portion in the spinning yarn of the base end part side being wound in yarn reserving portion more reliably.

First restrictions, the 2nd restrictions and the 3rd restrictions can be integrally formed by sheet material. The number of parts for setting the first restrictions, the 2nd restrictions and the 3rd restrictions can be reduced such that it is able to seek the simplification of structure.

3rd restrictions can be a part for the sheet material become with convex distortion to yarn reserving portion side. Gap between the surface of the yarn reserving portion that can easily and reliably guarantee to maintain narrower and the 3rd restrictions.

The yarn accumulation amount sensor that the accumulation amount to the spinning yarn being wound on yarn accumulation roller that also has yarn accumulation device detects, yarn accumulation amount sensor can be arranged on sheet material. The number of parts that can be used in supporting yarn accumulation amount sensor reduces such that it is able to seek the simplification of structure.

Yarn feeding device can have: the drafting assembly that fibrous bundle carries out drawing-off; The spinning apparatus of spinning yarn is generated with applying twisted to fibrous bundle. The spinning yarn of high-quality can be supplied efficiently.

Spinning apparatus can be apply twisted by the rotating fluid of air to fibrous bundle and generate the air spinning device of spinning yarn. Can more efficiently supply the higher spinning yarn of quality.

The spinning machine of the present invention has multiple above-mentioned spinning unit. Even if this spinning machine has the spinning unit that also can realize action smoothly as described above when spinning yarn is cut-off, so, it is possible to generate the package of high-quality efficiently.

Accompanying drawing explanation

Fig. 1 is the front view of the spinning machine of an embodiment of the invention.

Fig. 2 is the side-view of the spinning unit of an embodiment of the invention.

Fig. 3 is the stereographic map of the yarn accumulation device of the spinning unit of Fig. 2.

Fig. 4 is the stereographic map of the yarn accumulation device during detection of yarn defect.

Fig. 5 is the side-view of the spinning unit during detection of yarn defect.

Fig. 6 is the side-view of the spinning unit during detection of yarn defect.

The side-view of spinning unit when Fig. 7 is Yarn break.

The stereographic map of yarn accumulation device when Fig. 8 is Yarn break.

Fig. 9 is the figure of the limiting part of the yarn accumulation device of the Fig. 3 observed from yarn accumulation roller side.

Figure 10 is the figure of the limiting part of the yarn accumulation device of the Fig. 3 observed from front.

Embodiment

With reference to accompanying drawing, the preferred embodiment of the present invention is described in detail. , in the various figures, in addition same or equivalent part is marked identical Reference numeral, and the repetitive description thereof will be omitted.

As shown in Figure 1, spinning machine 1 there is multiple spinning unit 2, connect yarn chassis 3, blow box 4 and primover case 5. Multiple spinning unit 2 is arranged into row. Each spinning unit 2 generates spinning yarn Y and is wound on package P. Connect yarn chassis 3 to carry out connecing yarn action in the spinning unit 2 that spinning yarn Y is cut-off. Being accommodated with air supply source etc. in blow box 4, this air supply source is used in each several part of spinning unit 2 to produce to attract stream and rotating fluid etc. Primover case 5 is accommodated with for the primover etc. to each several part supply power of spinning unit 2.

In the following description, in the path (that is, yarn road) that spinning yarn Y moves, the side generating spinning yarn Y is called upstream side, the side of winding spinning yarn Y is called downstream side. Relative to connecing yarn chassis 3, side, place, yarn road is called front side, its opposition side is called rear side.

As shown in Figures 1 and 2, each spinning unit 2 has drafting assembly (yarn feeding device) 6, spinning apparatus (yarn feeding device) 7, yarn cleaner (yarn defect detection device) 8, tension pick-up (tension determining apparatus) 9, yarn accumulation device 50, upper wax apparatus 11, wind2 12 in order from upstream side. The mode (that is, downstream side is the mode of downside) that these devices take upstream side as upside is supported by framework 13 with being directly or indirectly. Yarn cleaner 8, tension pick-up 9, yarn accumulation device 50 and upper wax apparatus 11 as yarn treatment module 80 can be arranged in the way of freely installing and removing on framework 13.

Drafting assembly 6 makes sliver (sliver) S extend and generate fiber bundle F (that is, fiber bundle F being carried out drawing-off). Drafting assembly 6 has: rear roller to the 14, the 3rd roller to 15, tenter has the middle roller of band circle 16 to 17, front roller is to 18. Each roller to 14,15,17 and 18 bottom roll by being driven from the power of primover case 5 or the electronic motor (omit diagram) that arranges corresponding to each spinning unit 2 with different speed of rotation. Thus, drafting assembly 6 makes the sliver S from upstream side supply extend and generate fiber bundle F, and downstream the spinning apparatus 7 of side supplies.

Spinning apparatus 7 applies twisted by the rotating fluid of air to fiber bundle F and generates the air spinning device of spinning yarn Y.In more detail (diagram is omitted), spinning apparatus 7 has spinning room, fiber guide portion, rotating fluid produces nozzle, hollow leads axle body. The fiber bundle F supplied from the drafting assembly 6 of upstream side is guided by fiber guide portion in spinning room. Rotating fluid produces nozzle arrangement around the path that fiber bundle F moves, and makes to produce in spinning room rotating fluid. By this rotating fluid, the fiber end of the fiber bundle F being directed in spinning room reversally rotates. Hollow guiding axle body by the spinning yarn Y that spinned from spinning room to the exterior guiding of spinning apparatus 7.

The yarn defect of the spinning yarn Y of movement is detected by yarn cleaner 8 between spinning apparatus 7 and yarn accumulation device 50, and yarn defect is detected signal and is sent to cell controller 10. Yarn cleaner 8 to as yarn defect, in the rugosity exception of such as spinning yarn Y and spinning yarn Y, contained foreign matter detects. The tension force of the spinning yarn Y of movement is measured by tension pick-up 9 between spinning apparatus 7 and yarn accumulation device 50, and tension detection signal is sent to cell controller 10. The spinning yarn Y of movement is waxed by upper wax apparatus 11 between yarn accumulation device 50 and wind2 12. Cell controller 10 is arranged corresponding to each spinning unit 2, for the action of spinning unit 2 being controlled.

The spinning yarn Y of movement is carried out accumulation by yarn accumulation device 50 between spinning apparatus 7 and wind2 12. Yarn accumulation device 50 has: from spinning apparatus 7 by stable for spinning yarn Y the function drawn; Make the function that the spinning yarn Y sent from spinning apparatus 7 is detained and prevent spinning yarn Y lax when by connecing yarn chassis 3 and carry out connecing yarn action etc.; And the tension force of the spinning yarn Y of wind2 12 side regulated to prevent the tension change of spinning yarn Y of wind2 12 side is delivered to the function of spinning apparatus 7 side.

Spinning yarn Y is wound on package P to form the full package P rolled up by wind2 12. Wind2 12 has reel cage arm 21, reel spool 22, traversing gear 23. Reel cage arm 21 can swingingly be supported by fulcrum 24, and the surface of the spool B supported with allowing to rotation or the surface of package P (that is, the spinning yarn Y that reels on spool B becomes) are with the surface contact of suitable pressure and reel spool 22. Reel spool 22, by being driven corresponding to the electronic motor of each spinning unit 2 setting (diagram is omitted), makes the spool B contacted or package P rotate. Traversing gear 23 is driven by the common axle 25 of multiple spinning unit 2, makes spinning yarn Y with Rack relative to the spool B rotated and/or package P traversing.

Connect yarn chassis 3 and move to the cut-off spinning unit 2 of spinning yarn Y, and carry out connecing yarn action in this spinning unit 2. Connect yarn chassis 3 to there is device of splicing (yarn splicing device) 26, attract pipe 27, suction nozzle 28. Attract pipe 27 can be supported rotationally by fulcrum 31, attract to catch and be fixed to device 26 of splicing for the yarn ends of the spinning yarn Y of spinning apparatus 7 side being carried out. Suction nozzle 28 can be supported rotationally by fulcrum 32, catches for carrying out the yarn ends of the spinning yarn Y of wind2 12 side sucking and is fixed to device 26 of splicing. The yarn ends that handing-over comes is connect yarn by device 26 of splicing each other.

Below, the formation of above-mentioned yarn accumulation device 50 is described. As shown in Figures 2 and 3, yarn accumulation device 50 has yarn accumulation roller 51, electronic motor (CD-ROM drive motor) 55, lower limit side yarn accumulation amount sensor 56, upper limit side yarn accumulation amount sensor 57, yarn hooking member 61, yarn disengaging parts 64, attracting mechanism 65, limiting part 71.Between spinning apparatus 7 and yarn accumulation roller 51, it is provided with the first guide member 78, yarn operation control member 75 in order from upstream side. The 2nd guide member 79 it is provided with between yarn accumulation roller 51 and wind2 12.

Yarn accumulation roller 51 is fixed on the drive shaft of electronic motor 55, is rotated by electronic motor 55. Yarn accumulation roller 51 has: yarn reserving portion 52, base end side tapering 53, tapering, front 54. Yarn reserving portion 52 is the part of the cylinder shape for spinning yarn Y winding, and it attenuates slightly towards front. Base end side tapering 53 is thicker towards upstream-side tip from the base end part 52a of the winding starting side of yarn reserving portion 52. Tapering, front 54 is thicker towards downstream-side end from the leading section 52b of yarn reserving portion 52.

Base end side tapering 53 accept spinning yarn Y from upstream side to yarn accumulation roller 51 that import from and by its smooth and easy base end part 52a being fixed to yarn reserving portion 52. Thus, on yarn reserving portion 52, neatly reel spinning yarn Y from base end side forward end side. When from yarn accumulation roller 51 unwinding spinning yarn Y, tapering, front 54 can while preventing that the spinning yarn Y being wound on yarn reserving portion 52 is disposable and coming off, by spinning yarn Y from yarn accumulation roller 51 downstream side smooth and easy derive.

Lower limit side yarn accumulation amount sensor 56 is the sensor detected in a non-contact manner on yarn accumulation roller 51 with or without spinning yarn Y, and this sensor is configured in the rear side of yarn accumulation roller 51 in the way of relative with yarn reserving portion 52. Lower limit accumulation amount, when the accumulation amount of the spinning yarn Y being wound on yarn accumulation roller 51 reaches lower limit amount, is detected signal and is sent to cell controller 10 by lower limit side yarn accumulation amount sensor 56. Upper limit side yarn accumulation amount sensor 57 is the sensor detected in a non-contact manner on yarn accumulation roller 51 with or without spinning yarn Y, and this sensor is configured in the side of yarn accumulation roller 51 in the way of relative with the leading section 52b of yarn reserving portion 52. Upper limit accumulation amount, when the accumulation amount of the spinning yarn Y being wound on yarn accumulation roller 51 reaches upper limit amount, is detected signal and is sent to cell controller 10 by upper limit side yarn accumulation amount sensor 57.

Yarn hooking member 61 is located at wind2 12 side relative to yarn accumulation roller 51, hangs spinning yarn Y for hook and this spinning yarn Y is wound on yarn accumulation roller 51. Yarn hooking member 61 has flyer shaft 62 and flier 63. Flyer shaft 62 is supported in the front of yarn accumulation roller 51 and relatively can rotate around same axle relative to yarn accumulation roller 51. Flier 63 is fixed on the front end of flyer shaft 62, bending on the tapering, front 54 of yarn accumulation roller 51 in the way of spinning yarn Y hung by hook. Between yarn accumulation roller 51 and flyer shaft 62, effect has magnetic force. In order to make yarn hooking member 61 relatively rotate relative to yarn accumulation roller 51, it is necessary to produce the torque of more than prescribed value in yarn hooking member 61.

It is the parts that spinning yarn Y is departed from from yarn hooking member 61 that yarn departs from parts 64, near its tapering, front 54 being configured in yarn accumulation roller 51. Yarn departs from parts 64 and is supported in the way of can swinging between lowering position and hoisting position. The position that lowering position Shi Congsha keeps out of the way in road. Spinning yarn Y on hoisting position Shi Jiangsha road boosts and makes the position that spinning yarn Y departs from from yarn hooking member 61.Yarn is departed from parts 64 and is suppressed to decline position side by spring (diagram is omitted). Yarn departs from parts 64 and is usually in lowering position, when carrying out connecing yarn action etc., moves to hoisting position by being located at the pneumatic cylinder (diagram is omitted) connect on yarn chassis 3.

Attracting mechanism 65 makes the attraction stream producing air in the suction port 66a that the base end side tapering 53 with yarn accumulation roller 51 is oppositely disposed. Suction port 66a is located at one end of tubulose parts 66. Via joining, pipe (diagram is omitted) is connected to and attracts pipe 27, the shared fiber flock of suction nozzle 28 to reclaim room (diagram is omitted) the other end of tubulose parts 66. As described later, when spinning yarn Y is cut-off in spinning apparatus 7 side, in the base end part 52a side of yarn reserving portion 52, the yarn ends of spinning yarn Y swings. The effect of attraction stream that the yarn ends swung is subject in suction port 66a producing. Therefore, the fiber flock of its yarn ends are not removed by attracting mechanism 65 with almost dispersing.

Limiting part 71 is the sheet material of the side (in the way of relative with yarn reserving portion 52) being configured in yarn accumulation roller 51, and it has the first restrictions 72, the 2nd restrictions 73, the 3rd restrictions 74. First restrictions 72 and the 2nd restrictions 73 are worked as spinning yarn Y and are cut off the following situation of limit, that is: the situation that the yarn ends of the spinning yarn Y swung in the base end part 52a side of yarn reserving portion 52 moves to the 52b side, leading section of yarn reserving portion 52 from the unwinding of the 52b side, leading section of yarn reserving portion 52 prior to spinning yarn Y in spinning apparatus 7 side. 3rd restrictions 74 is worked as spinning yarn Y and is cut off the following situation of limit, that is: the situation that the yarn ends of the spinning yarn Y swung in the 52b side, leading section of yarn reserving portion 52 moves to the base end part 52a side of yarn reserving portion 52 from the unwinding of the base end part 52a side of yarn reserving portion 52 prior to spinning yarn Y in wind2 12 side.

Yarn operation control member 75 is mounted in the sheet material of the upstream side (being the lower surface (end face in downstream side) of tension pick-up 9) of yarn accumulation roller 51 here, and it has guiding function portion 76, limitation function portion 77. Spinning yarn Y is given tension force and is guided in the base end side tapering 53 of spinning yarn Y-direction yarn accumulation roller 51 by guiding function portion 76, meanwhile, prevents the twisted downstream side to guiding function portion 76 transmitting the spinning yarn Y come from spinning apparatus 7 from transmitting. Limitation function portion 77 prevents the yarn ends of the spinning yarn Y when spinning yarn Y is cut-off in spinning apparatus 7 side from departing from from the yarn road of the spinning yarn Y being directed to yarn accumulation device 50 and the situation crossing yarn accumulation roller 51 and move to yarn hooking member 61 side.

First guide member 78 is mounted in the sheet material of the upstream side (being the lower surface (end face in downstream side) of tension pick-up 9) of yarn accumulation roller 51 here, for spinning yarn Y is fixed to the detection position of the regulation being configured in framework from the slit in the framework being formed in tension pick-up 9. 2nd guide member 79 is mounted in the sheet material in the downstream side (this refers on the module frame 81 of yarn treatment module 80) of yarn accumulation roller 51, for spinning yarn Y being fixed to the prescribed position of upper wax apparatus 11, and limit the track of the spinning yarn Y swung by the yarn hooking member 61 rotated thus the movement of the spinning yarn Y in the downstream side of the 2nd guide member 79 is stablized.

Below, the action of above-mentioned yarn accumulation device 50 is described. In spinning unit 2, when carry out generate spinning yarn Y and to package P reel usual action, electronic motor 55 makes yarn accumulation roller 51 drive with the speed of rotation of constant.Thus, yarn hooking member 61 and yarn accumulation roller 51 rotate integratedly, and spinning yarn Y hung by flier 63 hook. Spinning yarn Y is wound on the yarn accumulation roller 51 of rotation by the yarn hooking member 61 rotated when spinning yarn Y hung by hook.

Yarn accumulation roller 51 reel after spinning yarn Y, cell controller 10 based on the lower limit accumulation amount detection signal sent from lower limit side yarn accumulation amount sensor 56 and the action of upper limit accumulation amount detection signal control spinning unit 2 sent from upper limit side yarn accumulation amount sensor 57 so that the accumulation amount of the spinning yarn Y being wound on yarn accumulation roller 51 is more than lower limit amount and below upper limit amount. When the accumulation amount of the spinning yarn Y being wound on yarn accumulation roller 51 is more than lower limit amount, the yarn reserving portion 52 of yarn accumulation roller 51 increases with the contact area of spinning yarn Y, and skidding etc. almost can not occur between yarn reserving portion 52 and spinning yarn Y. Therefore, yarn accumulation device 50 can draw spinning yarn Y by the rotation of yarn accumulation roller 51 from spinning apparatus 7 stable (that is, with constant quality and constant speed).

Yarn accumulation roller 51 is wound with spinning yarn Y, if the tension force of the spinning yarn Y of wind2 12 side increases, the power (that is, making the power that the rotation of yarn hooking member 61 stops) then making yarn hooking member 61 carry out rotation relatively relative to yarn accumulation roller 51 acts on flier 63. Thus, when the torque produced in yarn hooking member 61 is more than prescribed value, yarn hooking member 61 rotates relatively relative to yarn accumulation roller 51. Its result is, spinning yarn Y is from yarn accumulation roller 51 unwinding. If the tension force of the spinning yarn Y of wind2 12 side reduces, the torque deficiency prescribed value that yarn hooking member 61 produces, then yarn hooking member 61 and yarn accumulation roller 51 rotate integrally. Its result is, reel spinning yarn Y on yarn accumulation roller 51. Like this, the tension force of the spinning yarn Y of wind2 12 side can be regulated to prevent the tension change of spinning yarn Y of wind2 12 side is passed to spinning apparatus 7 side by yarn accumulation device 50.

Below, the action of the spinning unit 2 when being detected by yarn defect is described. In spinning unit 2, when the usual action carrying out generating spinning yarn Y and reel on package P, if yarn cleaner 8 detects yarn defect, then yarn defect is detected signal and is sent to cell controller 10 by yarn cleaner 8. Cell controller 10 makes the action of drafting assembly 6 and spinning apparatus 7 etc. stop after receiving yarn defect detection signal immediately. Thus, no longer applying twisted to fiber bundle F, spinning yarn Y is cut-off in spinning apparatus 7 side.

Even if spinning yarn Y is cut-off in spinning apparatus 7 side, the rotation that cell controller 10 also makes yarn accumulation roller 51 and the winding undertaken by wind2 12 continue. As shown in Figure 4, therefore, the yarn ends of cut-off spinning yarn Y is wound onto on yarn accumulation roller 51, and swings in the base end part 52a side of yarn reserving portion 52 during spinning yarn Y is from yarn accumulation roller 51 to wind2 12 side unwinding. Now, the first restrictions 72 that the yarn ends of the spinning yarn Y swung is limited parts 71 to the movement of the 52b side, leading section of yarn reserving portion 52 limits, meanwhile, and the effect of attraction stream being subject in suction port 66a producing. Therefore, spinning yarn Y is smooth and easyly from yarn accumulation roller 51 to wind2 12 side unwinding.And, during spinning yarn Y is by unwinding, the fiber flock of the yarn ends of upstream side are not removed by attracting mechanism 65 with almost dispersing.

When wind2 12 is wound up into the yarn ends of cut-off spinning yarn Y to package P, the control signal illustrating spinning unit 2 that spinning yarn Y has been cut off is sent to and connects yarn chassis 3 by cell controller 10. Thus, connect yarn chassis 3 move to this spinning unit 2 before and start to connect yarn action.

As shown in Figure 5, first, suction nozzle 28 turns to the near surface of package P and produces to attract stream, and meanwhile, wind2 12 makes package P reverse rotation. Thus, suction nozzle 28 is drawn from the surface of package P and is caught the yarn ends of spinning yarn Y. Next, as shown in Figure 6, suction nozzle 28 turns to original position (stand-by station), and the yarn ends of the spinning yarn Y of wind2 12 side is fixed to device 26 of splicing. Here, wind2 12 makes the rotation of package P stop.

As shown in Figure 5, pipe 27 is attracted to turn to the downstream side of spinning apparatus 7 and produce attraction stream. Now, owing to cell controller 10 makes the action of drafting assembly 6 and spinning apparatus 7 etc. again start, so, attract pipe 27 yarn ends of the spinning yarn Y generated to be caught. As shown in Figure 6, next, attract pipe 27 to turn to original position (stand-by station), and the yarn ends of the spinning yarn Y of spinning apparatus 7 side is fixed to device 26 of splicing.

After the yarn ends of spinning yarn Y of wind2 12 side and the yarn ends of the spinning yarn Y of spinning apparatus 7 side are directed to device 26 of splicing, in yarn accumulation device 50, the spinning yarn Y of spinning apparatus 7 side hung by yarn hooking member 61 hook, and the spinning yarn Y that reels on the yarn accumulation roller 51 rotated integrally. Thus, even if the winding undertaken by wind2 12 stops, also almost can not relaxing from the spinning yarn Y that spinning apparatus 7 is sent. Like this, yarn accumulation device 50 can making the spinning yarn Y sent from spinning apparatus 7 be detained when connecing yarn action etc. it is thus possible to prevent spinning yarn Y from occurring lax by what connect that yarn chassis 3 carries out.

When the accumulation amount of the spinning yarn Y being wound on yarn accumulation roller 51 arrives lower limit amount, between the yarn reserving portion 52 and spinning yarn Y of yarn accumulation roller 51, almost can not there is skidding etc. Its result is, spinning yarn Y from spinning apparatus 7 stablized (that is, with the speed of the quality of constant and constant) draw. Cell controller 10 makes yarn depart from parts 64 and moves to hoisting position from lowering position, and yarn departs from parts 64 makes spinning yarn Y depart from from yarn hooking member 61.

Like this, make spinning yarn Y depart from from yarn hooking member 61 when yarn accumulation roller 51 rotates after, almost do not stop spinning yarn Y from the resistance of yarn accumulation roller 51 unwinding. Thus, before the accumulation amount of spinning yarn Y reaches lower limit amount, the spinning yarn Y (that is, the spinning yarn Y of quality instability) being wound on yarn accumulation roller 51 by attract pipe 27 and from yarn accumulation roller 51 unwinding and be inhaled into. Even if during spinning yarn Y is attracted pipe 27 to suck, spinning yarn Y is also drawn from spinning apparatus 7 and is wound on yarn accumulation roller 51 with stablizing. Its result is, the accumulation amount of spinning yarn Y maintains more than lower limit amount.

After the spinning yarn Y being removed quality instability by attraction pipe 27, cell controller 10 makes yarn depart from parts 64 and moves to lowering position from hoisting position.Thus, the spinning yarn Y of spinning apparatus 7 side is hooked in yarn hooking member 61, and spinning yarn Y can not from yarn accumulation roller 51 downstream side unwinding. The yarn ends of the yarn ends of the spinning yarn Y of wind2 12 side and the spinning yarn Y of spinning apparatus 7 side is connected by device 26 of splicing. Now, it is removed by attraction pipe 27 and suction nozzle 28 in the cut-off yarn ends do not wanted of device 26 of splicing. After connecing of being undertaken by device 26 of splicing, yarn terminates, cell controller 10 makes the winding that undertaken by wind2 12 again.

Below, the action of the spinning unit 2 during Yarn break is described. As shown in Figure 7, in spinning unit 2, carry out generate spinning yarn Y and to package P reel usual action time, if there is the broken end of spinning yarn Y in the downstream side of yarn accumulation device 50, then cannot detect out spinning yarn Y by being located at the yarn movable sensor (diagram is omitted) in the downstream side of yarn accumulation device 50. Thus, cell controller 10 is judged as between yarn accumulation device 50 and wind2 12 and Yarn break occurs, and stops the action of drafting assembly 6 and spinning apparatus 7 etc. immediately. Thus, fiber bundle F can not be applied twisted, and spinning yarn Y is also cut off in spinning apparatus 7 side.

Even if spinning yarn Y is cut-off in spinning apparatus 7 side, the rotation that cell controller 10 also makes yarn accumulation roller 51 and the winding undertaken by wind2 12 continue. Therefore, the yarn ends of cut-off spinning yarn Y is wound onto on yarn accumulation roller 51, and swings in the base end part 52a side of yarn reserving portion 52. Now, the first restrictions 72 that the yarn ends of the spinning yarn Y of swing is limited parts 71 to the movement of the 52b side, leading section of yarn reserving portion 52 limits, meanwhile, and the effect of attraction stream being subject in suction port 66a producing. Therefore, the fiber flock of the yarn ends of upstream side are not removed by attracting mechanism 65 with almost not dispersing.

The spinning yarn Y being wound on yarn accumulation roller 51 owing to also disconnecting in downstream side, so, not from yarn accumulation roller 51 downstream side unwinding. Therefore, cell controller 10 makes rotate forward (the common sense of rotation) of yarn accumulation roller 51 stop, and makes yarn accumulation roller 51 reverse rotation. Now, the 2nd restrictions 73 that the yarn ends of the upstream side of the spinning yarn Y being wound on yarn accumulation roller 51 is limited parts 71 to the movement of the 52b side, leading section of yarn reserving portion 52 limits. As shown in Figure 8, therefore, the yarn ends of upstream side is reliably caught by the suction port 66a of attracting mechanism 65. And, the 3rd restrictions 74 that the yarn ends in the downstream side of the spinning yarn Y being wound on yarn accumulation roller 51 is limited parts 71 to the movement of the base end part 52a side of yarn reserving portion 52 limits. Therefore, the spinning yarn Y being wound on yarn accumulation roller 51 is from the base end part 52a side smooth and easy ground unwinding of yarn reserving portion 52, and is sucked by attracting mechanism 65.

After the spinning yarn Y being wound on yarn accumulation roller 51 is removed by attracting mechanism 65, cell controller 10 makes the reverse rotation of yarn accumulation roller 51 stop, and yarn accumulation roller 51 is rotated forward. Cell controller 10 will illustrate that spinning yarn Y there occurs that the control signal of the spinning unit 2 of broken end is sent to and connects yarn chassis 3. Thus, connect before yarn chassis 3 moves to this spinning unit 2, and perform as described above to connect yarn action.

Below, the formation of the limiting part 71 of yarn accumulation device 50 is illustrated in greater detail.As shown in FIG. 9 and 10, the first restrictions 72 of limiting part 71, the 2nd restrictions 73 and the 3rd restrictions 74 are formed by the sheet material 70 of the rectangular shape being made up of such as metal. It is provided with at the upper end 70a of sheet material 70 and cuts scarce portion 70b. Via cutting scarce portion 70b, the suction port 66a of attracting mechanism 65 is relative with the base end side tapering 53 of yarn accumulation roller 51. The bottom 70c of sheet material 70 bends to the opposition side of yarn accumulation roller 51. Lower surface at bottom 70c is provided with upper limit side yarn accumulation amount sensor 57.

The upstream side cutting scarce portion 70b on the sense of rotation A of the yarn accumulation roller 51 when the first restrictions 72 is positioned at winding spinning yarn Y, namely on this sense of rotation A, the upstream side of suction port 66a. First restrictions 72 configures in the way of relative with the base end part 52a of yarn reserving portion 52. First restrictions 72 is worked as spinning yarn Y and is cut off the following situation of limit, that is: the situation that the yarn ends of the spinning yarn Y swung in the base end part 52a side of yarn reserving portion 52 moves to the 52b side, leading section of yarn reserving portion 52 from the unwinding of the 52b side, leading section of yarn reserving portion 52 prior to spinning yarn Y in spinning apparatus 7 side.

The downstream side cutting scarce portion 70b on the sense of rotation A of the yarn accumulation roller 51 when the 2nd restrictions 73 is positioned at winding spinning yarn Y, i.e. the downstream side of the suction port 66a on this sense of rotation A. 2nd restrictions 73 configures in the way of relative with the base end part 52a of yarn reserving portion 52. 2nd restrictions 73 is worked as spinning yarn Y and is cut off the following situation of limit, that is: the situation that the yarn ends of the spinning yarn Y swung in the base end part 52a side of yarn reserving portion 52 moves to the 52b side, leading section of yarn reserving portion 52 from the unwinding of the 52b side, leading section of yarn reserving portion 52 prior to spinning yarn Y in spinning apparatus 7 side.

The upstream side of the suction port 66a that the first restrictions 72 is positioned on sense of rotation A refers to, compared with distance making yarn accumulation roller 51 from suction port 66a to sense of rotation A sideway swivel, distance the first restrictions 72, yarn accumulation roller 51 is rotated from suction port 66a to the opposition side of sense of rotation A, short apart from the distance of the first restrictions 72. The downstream side of the suction port 66a that the 2nd restrictions 73 is positioned on sense of rotation A refers to, compared with distance rotating to the opposition side of sense of rotation A from suction port 66a with making yarn accumulation roller 51, distance the 2nd restrictions 73, making yarn accumulation roller 51 from suction port 66a to sense of rotation A sideway swivel, short apart from the distance of the 2nd restrictions 73.

3rd restrictions 74 is configured in, in the way of relative with yarn reserving portion 52, the downside (52b side, leading section) cutting scarce portion 70b, i.e. the downside (52b side, leading section) of suction port 66a. 3rd restrictions 74 is worked as spinning yarn Y and is cut off the following situation of limit, that is: the situation that the yarn ends of the spinning yarn Y swung in the 52b side, leading section of yarn reserving portion 52 moves to the base end part 52a side of yarn reserving portion 52 from the unwinding of the base end part 52a side of yarn reserving portion 52 prior to spinning yarn Y in wind2 12 side. 3rd restrictions 74 is a part for the sheet material 70 become with convex distortion to yarn reserving portion 52 side. 3rd restrictions 74 extends along the surface of yarn reserving portion 52 to the direction almost parallel with the rotation centerline direction of yarn accumulation roller 51.

As described above, in spinning unit 2, when yarn defect detects etc., spinning yarn Y spinning apparatus 7 side (, relative to the introduction side of yarn accumulation roller 51) cut-off when, by the first restrictions 72 and the 2nd restrictions 73, the movement of the yarn ends of the spinning yarn Y swung in the base end part 52a side of yarn reserving portion 52 to the 52b side, leading section of yarn reserving portion 52 is limited.Consequently, it is possible to the yarn ends preventing upstream side is wrapped in the unwinding smoothly hindering the leading section 52b side of spinning yarn Y from yarn reserving portion 52 on the spinning yarn Y of the 52b side, leading section being wound in yarn reserving portion 52.

And, when Yarn break etc., spinning yarn Y is in wind2 12 side (namely, relative to the export side of yarn accumulation roller 51) cut-off when, making yarn accumulation roller 51 reverse rotation so that when spinning yarn Y is from the base end part 52a side unwinding of yarn reserving portion 52, by along the surface of yarn reserving portion 52 to the 3rd restrictions 74 extended with almost parallel direction, the rotation centerline direction of yarn accumulation roller 51, the movement of the yarn ends of the spinning yarn Y swung in the 52b side, leading section of yarn reserving portion 52 to the base end part 52a side of yarn reserving portion 52 is limited. consequently, it is possible to the yarn ends preventing downstream side is wrapped in the unwinding smoothly hindering the base end part 52a side of spinning yarn Y from yarn reserving portion 52 on the spinning yarn Y of the base end part 52a side being wound in yarn reserving portion 52.

According to the above, by spinning unit 2, it is possible to the action of the yarn ends of spinning yarn Y when spinning yarn Y is cut-off controls such that it is able to realize action smoothly.

Rotating forward on direction at yarn accumulation roller 51, the first restrictions 72 is positioned at the upstream side of the suction port 66a of attracting mechanism 65, and the 2nd restrictions 73 is positioned at the downstream side of the suction port 66a of attracting mechanism 65. Thus, the yarn ends of the spinning yarn Y swung in the base end part 52a side of yarn reserving portion 52 fully is subject to attracting the effect of stream. Its result is, it is possible to reliably remove the fiber flock of the yarn ends of swing. And, it is possible to prevent yarn ends to be wrapped in around suction port 66a.

First restrictions 72, the 2nd restrictions 73 and the 3rd restrictions 74 are integrally formed by sheet material 70. Consequently, it is possible to reduce on yarn accumulation device 50 for setting the number of parts of the first restrictions 72, the 2nd restrictions 73 and the 3rd restrictions 74, it is possible to seek the simplification of structure.

A part for the sheet material 70 become with convex distortion to yarn reserving portion 52 side becomes the 3rd restrictions 74. Consequently, it is possible to the gap between the surface of the yarn reserving portion 52 easily and reliably guaranteeing to maintain narrower and the 3rd restrictions 74.

Upper limit side yarn accumulation amount sensor 57 is arranged on sheet material 70. Consequently, it is possible to reduce the number of parts for supporting upper limit side yarn accumulation amount sensor 57, it is possible to seek the simplification of structure.

The yarn feeding device of supply spinning yarn Y is made up of drafting assembly 6 and spinning apparatus 7. Spinning apparatus 7 applies twisted by the rotating fluid of air to fiber bundle F and generates the air spinning device of spinning yarn Y. Consequently, it is possible to supply the spinning yarn Y of high-quality efficiently.

Even if spinning machine 1 is owing to having multiple spinning unit 2 that also can realize action smoothly as described above when spinning yarn Y is cut-off, so, it is possible to generate the package P of high-quality efficiently.

Above, describe an embodiment of the invention, the invention is not restricted to above-mentioned enforcement mode. Such as, in spinning machine 1 and spinning unit 2, the yarn feeding device of supply spinning yarn has drafting assembly 6 and spinning apparatus 7, but in the spinning machine and spinning unit of the present invention, from the yarn feeding device etc. of the spool supply spinning yarn being wound with spinning yarn, as long as spinning yarn can be supplied, it is also possible to apply other yarn feeding device.

When spinning apparatus is air spinning device, in order to prevent the twisted upstream side transmission to spinning apparatus of fibrous bundle, spinning apparatus can also have the pin kept and configure in the way of outstanding in spinning room by fiber guide portion. Spinning apparatus can also be replaced such pin and be prevented the twisted upstream side transmission to spinning apparatus of fibrous bundle by the end of downstream side in fiber guide portion. And, spinning apparatus can also have and applies twisted one to air injection nozzle to reverse direction each other.

In spinning machine 1 and spinning unit 2, yarn accumulation device 50 has the function drawing spinning yarn Y from spinning apparatus 7. In the spinning machine and spinning unit of the present invention, it is also possible to draw spinning yarn by sending roller and clamping roller from the yarn feeding device of supply spinning yarn.

In spinning machine 1 and spinning unit 2, the cut-out of spinning yarn Y when yarn defect detects is implemented by the stopping of rotating fluid in spinning apparatus 7. In the spinning machine and spinning unit of the present invention, the cut-out of spinning yarn when yarn defect detects can also be implemented by cutting unit.

In spinning machine 1 and spinning unit 2, so that the mode that the spinning yarn Y being supplied in upside is wound in downside configures each device. In the spinning machine and spinning unit of the present invention, it is also possible to so that the mode that the spinning yarn being supplied in downside is wound in upside configures each device.

In spinning machine 1 and spinning unit 2, the bottom roll of drafting assembly 6 and the transversing mechanism of traversing gear 23 are by being driven from the power of primover case 5 (that is, multiple spinning unit 2 shares). Such as, in the spinning machine and spinning unit of the present invention, each several part (drafting assembly, spinning apparatus, wind2 etc.) of spinning unit can be separately driven by spinning unit 2.

On the travel direction of spinning yarn Y, tension pick-up 9 can be configured in the upstream side of yarn cleaner 8. Cell controller 10 may not be and arranges corresponding to each spinning unit 2, but often arranges one corresponding to multiple spinning unit 2. Upper wax apparatus 11, tension pick-up 9 and yarn cleaner 8 can not also be arranged on spinning unit 2. Wind2 12 may not be the CD-ROM drive motor by arranging corresponding to each spinning unit 2 and drives, but shares, by multiple spinning unit 2, the driving source arranged and drive. In this case, when making package P reverse rotation, reel cage arm 21 is mobile so that package P is separated from reel spool 22 by cylinder (omitting diagram), makes package P reverse rotation by being located at the reverse rotation roller (omitting diagram) connect on yarn chassis 3. In addition, it is also possible to yarn treatment module 80 is not set, and yarn cleaner 8, tension pick-up 9, yarn accumulation device 50 and upper wax apparatus 11 are separately supported directly or indirectly by framework 13.

Claims

1. a spinning unit, it is characterised in that, have:

The yarn feeding device of supply spinning yarn;

The wind2 described spinning yarn being wound in package; With

The yarn accumulation device of spinning yarn described in accumulation between described yarn feeding device and described wind2,

Described yarn accumulation device has:

The yarn accumulation roller of the described spinning yarn that reels; With

First restrictions, the base end part of the winding starting side that described first restrictions is configured to the yarn reserving portion with the described spinning yarn that reels in described yarn accumulation roller is relative, and when described spinning yarn is cut-off in described yarn feeding device side, following situation is limited, that is: the situation that the yarn ends of the described spinning yarn swung in described base end part side moves to side, described leading section from the unwinding of the side, leading section of described yarn reserving portion prior to described spinning yarn.

2. spinning unit as claimed in claim 1, it is characterised in that:

Described yarn accumulation device also has the attracting mechanism of the attraction stream producing air in relative with described yarn accumulation roller the suction port configured,

The downstream side of described first restrictions in the sense of rotation of described yarn accumulation roller when described suction port is positioned at winding described spinning yarn.

3. spinning unit as claimed in claim 2, it is characterised in that:

Described yarn accumulation device also has the 2nd restrictions, described 2nd restrictions is configured to relative with described base end part, and when described spinning yarn is cut-off in described yarn feeding device side, following situation is limited, that is: the situation that the yarn ends of the described spinning yarn swung in described base end part side moves to side, described leading section from the unwinding of side, described leading section prior to described spinning yarn

The downstream side of the described suction port in the sense of rotation of described yarn accumulation roller when described 2nd restrictions is positioned at winding described spinning yarn.

4. spinning unit as claimed in claim 3, it is characterised in that:

Described yarn accumulation device also has the 3rd restrictions, described 3rd restrictions is configured to relative with described yarn reserving portion, and when described spinning yarn is cut-off in described wind2 side, following situation is limited, that is: the situation that the yarn ends of the described spinning yarn swung in side, described leading section moves to described base end part side from the unwinding of described base end part side prior to described spinning yarn.

5. spinning unit as claimed in claim 4, it is characterised in that:

Described 3rd restrictions extends along the surface of described yarn reserving portion to the direction almost parallel with the rotation centerline direction of described yarn accumulation roller.

6. spinning unit as described in claim 4 or 5, it is characterised in that:

Described first restrictions, described 2nd restrictions and described 3rd restrictions are formed by sheet material.

7. spinning unit as claimed in claim 6, it is characterised in that:

Described 3rd restrictions is a part for the described sheet material become with convex distortion to described yarn reserving portion side.

8. spinning unit as claimed in claim 6, it is characterised in that:

Described yarn accumulation device also has: the yarn accumulation amount sensor accumulation amount of the described spinning yarn being wound on described yarn accumulation roller detected,

Described yarn accumulation amount sensor is arranged on described sheet material.

9. spinning unit as claimed in claim 7, it is characterised in that:

10. spinning unit as described in Claims 1 to 5,7��9 arbitrary items, it is characterised in that:

Described yarn feeding device has:

Fibrous bundle is carried out the drafting assembly of drawing-off; With

Described fibrous bundle is applied twisted and generates the spinning apparatus of described spinning yarn.

11. spinning units as claimed in claim 10, it is characterised in that:

Described spinning apparatus applies twisted by the rotating fluid of air to described fibrous bundle and generates the air spinning device of described spinning yarn.

12. spinning units as claimed in claim 6, it is characterised in that:

Described yarn feeding device has:

Fibrous bundle is carried out the drafting assembly of drawing-off; With

13. spinning units as claimed in claim 12, it is characterised in that:

14. 1 kinds of spinning units, it is characterised in that, have:

The yarn feeding device of supply spinning yarn;

The wind2 described spinning yarn being wound in package; With

Described yarn accumulation device has:

The yarn accumulation roller of the described spinning yarn that reels; With

Limiting part, described limiting part is the sheet material of the side being configured in described yarn accumulation roller.

15. spinning units as claimed in claim 14, it is characterised in that,

Described limiting part by with on described yarn accumulation roller for the yarn reserving portion of described spinning yarn winding relative in the way of be configured in the side of described yarn accumulation roller.

16. spinning units as described in claims 14 or 15, it is characterised in that,

Described sheet material is formed by the metal of rectangular shape,

Being formed with restrictions on described sheet material, described restrictions is formed as to described yarn accumulation roller side convexly, and described restrictions extends on the direction almost parallel with the rotation center axis direction of described yarn accumulation roller.

17. spinning units as described in claims 14 or 15, it is characterised in that,

It is formed in the upper end of described sheet material and cuts scarce portion.

18. spinning units as claimed in claim 16, it is characterised in that,

19. 1 kinds of spinning machines, it is characterised in that, there is the spinning unit described in arbitrary item of multiple claim 1��18.