CN108842230A - A kind of pneumatic spinning machine - Google Patents

Abstract

The invention discloses a kind of pneumatic spinning machines, pneumatic spinning machine spins to fibre bundle by turn air-flow and generates spun yarn, it has nozzle block, forms injection spinning compressed air in oriented spinning room, generates nozzle to generate the turn air-flow of turn air-flow in spinning room；Circulation piping, circulates and generates the spinning compressed air that nozzle supplies to turn air-flow；And spinning switching valve, setting is in circulation piping, carry out the switching of circulation and the circulation blocking of the spinning compressed air to circulate in circulation is piped, it is that the first length is become by the fibre bundle length of the loose thread of the spun yarn of the circulation blocking cutting of spinning compressed air by the volume settings in first-class wildcard pipe.The present invention can fibre bundle minister's degree on the loose thread to the spun yarn being truncated control.

Description

A kind of pneumatic spinning machine

Technical field

The invention belongs to the fields of spinning, and in particular to a kind of pneumatic spinning machine.

Background technique

In the past, the technology as this field, it is known that spinning documented by Japanese Unexamined Patent Publication 2006-144136 bulletin is single Member.The spinning apparatus that the spinning unit has is to generate turn air-flow by spraying compressed air into spinning room, and lead to It crosses and generates spun yarn to the indoor fibre bundle twisting of spinning is imported into using turn air-flow.Led to by the spun yarn that spinning apparatus is spinned The devices for taking-up configured in downstream side is crossed to be wound up into package.Configured with detection spun yarn between spinning apparatus and devices for taking-up The yarn clearer of yarn defect.

When detecting yarn defect by yarn clearer, spinning apparatus stops spraying compressed air into spinning room, makes fibre bundle Twisting stops.Devices for taking-up winds spun yarn in the state that the twisting of fibre bundle stops, thus in spinning room few fibers beam and The continuous state of spun yarn is truncated.

It is truncated in spinning apparatus and by being attached with and not being twisted on the loose thread of the spun yarn of devices for taking-up winding side Fibre bundle portion.But the length in the fibre bundle portion being attached on spun yarn is not controlled.Therefore, according to the fibre of spun yarn loose thread Tie up the difference of beam minister degree, it is possible to can not easily pull out loose thread from the package wound by devices for taking-up.

Summary of the invention

It is an object of the present invention to provide it is a kind of can fibre bundle minister's degree on the loose thread to the spun yarn being truncated control Pneumatic spinning machine.

The present invention solves technical problem and adopts the following technical scheme that：

A kind of pneumatic spinning machine of the invention is spin to fibre bundle by turn air-flow generating spun yarn, is had： Nozzle block is formed with turn air-flow and generates nozzle, which generates nozzle and spray spinning compressed air into spinning room, To generate turn air-flow in spinning room；The air that spins is piped with circulation, is circulated and is generated the spinning that nozzle supplies to turn air-flow Yarn compressed air；And spinning switching valve, setting are used in circulation piping in spinning air, circulate in spinning air The switching of circulation and the circulation blocking of the spinning compressed air to circulate in piping；Spinning switching valve and turn air-flow generate spray Spinning air between mouth is set to the volume in circulation piping, passes through the fibre of the loose thread of the spun yarn of circulation blocking cutting Tieing up beam minister degree becomes the first length.

In the pneumatic spinning machine, the circulation between nozzle can be generated by spinning switching valve and turn air-flow and be piped Interior volume controls fibre bundle minister's degree of the loose thread for the spun yarn being truncated, and can obtain fibre bundle portion is first long The spun yarn of degree.

Spinning switching valve and turn air-flow generate volume of the spinning air between nozzle in circulation piping, preferably 1500mm3 or less.In previous pneumatic spinning machine, even if spinning switching valve is made to become blocking state, switching valve is used in spinning The circulation between nozzle is generated with turn air-flow and is piped interior remaining compressed air, and nozzle can be also generated from turn air-flow to spinning Interior is slowly flowed out, and turn air-flow is generated in spinning room.The turn power of the turn air-flow is weaker, and turn power gradually becomes It is weak.Due to the turn air-flow, even if fibre bundle can also be drawn into spinning room after making spinning switching valve become blocking state It is interior, and since the turn power of turn air-flow is weaker, it can not suitably spin, and become attached on spun yarn loose thread The state in untwisted fibre bundle portion.Therefore, spinning switching valve and turn air-flow is made to generate the spinning between nozzle empty Gas is 1500mm3 or less with the volume in circulation piping.Thereby, it is possible to interdict spinning compressed air in spinning switching valve While circulation or almost simultaneously, stop generating nozzle from turn air-flow and spray compressed air, and stop the generation of turn air-flow. Therefore, while spinning interdicts the circulation of spinning compressed air with switching valve or almost simultaneously, stop drawing into spinning room Enter fibre bundle, therefore the fibre bundle minister degree of the loose thread for the spun yarn being truncated can be shortened or eliminate fibre bundle portion.

It is preferably to match bore that spinning switching valve and turn air-flow, which generate the spinning air circulation piping between nozzle, For 2mm or more, 4mm hereinafter, and piping length is 500mm or less.It can match as air is considered in the circulation of spinning air The circulation piping of the optimal spinning air of the pressure loss in pipe when flowing etc..

Pneumatic spinning machine preferably further has：Road is imported, fibre bundle is imported in spinning room；Lead path will pass through twirl Return-air stream and the spun yarn to spin is exported to outside spinning room；And wind pushing nozzle block, it is formed between guide approach and lead path and sprays Penetrate the wind pushing nozzle of air-supply compressed air.Sky is compressed by using from wind pushing nozzle to injection air-supply between lead path and importing road Gas can will be attached to the fibre bundle on spun yarn loose thread and be truncated from spun yarn.In this way, being pressed by the air-supply sprayed from wind pushing nozzle Contracting air, also can fibre bundle minister's degree to spun yarn loose thread control.

Pneumatic spinning machine preferably further has control unit, and the control unit is to air-supply compressed air from the spray of wind pushing nozzle Row control is injected, so that the length in fibre bundle portion becomes second length shorter than the first length.By being sent from wind pushing nozzle injection Wind compressed air can make fibre bundle minister's degree of the loose thread for the spun yarn being truncated long as second shorter than the first length Degree.

The present invention has the advantages that：

A kind of pneumatic spinning machine of the invention, can fibre bundle minister's degree on the loose thread to the spun yarn being truncated control System.

Detailed description of the invention

Fig. 1 is the main view of the spinning machinery of an embodiment；

Fig. 2 is the longitudinal section of the spinning machinery of an embodiment.

Specific embodiment

Technical solution of the present invention is further elaborated below with reference to examples and drawings.

Embodiment

A kind of pneumatic spinning machine is present embodiments provided, spinning machinery 1 shown in FIG. 1 has the multiple spinning being set side by side Unit 2.The spinning machinery 1 has adapter trolley 3, bellows 80 and headstock 5.In the following description, sometimes relative to connecing The yarn path side of spun yarn 10 is known as the nearby side of spinning machinery 1 by caster bed vehicle 3, its opposite side is known as inboard.In spinning machine The nearby side of tool 1 is provided with operator's access of the orientation extension along spinning unit 2.

As shown in Figure 1, each spinning unit 2 successively has drafting system 7, pneumatic spinning machine 100, yarn from upstream towards downstream Line accumulating device 12, waxing attachment 9 and devices for taking-up 13.The upper end that the framework 6 of spinning machinery 1 is arranged in drafting system 7 is attached Closely.The fibre bundle 8 sent from the drafting system 7 is spinned by pneumatic spinning machine 100.The spun yarn 10 sent out from pneumatic spinning machine 100, After having passed through yarn clearer 52, lower section is further sent to by yarn accumulation device 12 and assigns wax by waxing attachment 9.Later, Spun yarn 10 is wound by devices for taking-up 13, and package 45 is consequently formed.

Drafting system 7 makes sliver 15 extend and become fibre bundle 8.As shown in Fig. 2, the drafting system 7 have back roller to 16, Third roller to 17, set up the intermediate calender rolls of tengential belt 18 to 19 and preliminary roller to 20 this four rollers pair.Each roller is to 16,17,19 and 20 The power of lower roll, origin automatic power box 5 or the driving source (not shown) being arranged individually drives.Each roller is to 16,17,19 and 20 It is driven with different revolving speeds.As a result, drafting system 7 can be such that the sliver 15 supplied from upstream side extends and become fibre bundle 8, And it is sent to the pneumatic spinning machine 100 in downstream side.Pneumatic spinning machine 100 twists fibre bundle 8 using turn air-flow and generates spun yarn 10。

The downstream of pneumatic spinning machine 100 is provided with yarn accumulation device 12.The yarn accumulation device 12 has：To spun yarn 10 imparting regulation tension and the function that pulls out it from pneumatic spinning machine 100；When adapter trolley 3 carries out connector etc., make from gas The spun yarn 10 that dynamic spinning machine 100 is sent out is detained and prevents the function of the relaxation of spun yarn 10；And tension is adjusted so as to devices for taking-up 13 The tension change of side is not delivered to the function of pneumatic 100 side of spinning machine.It is deposited as shown in Fig. 2, yarn accumulation device 12 has yarn Product roller 21 hangs yarn component 22, upstream side yarn guide 23, electric motor 25, downstream side yarn guide 26 and yarn accumulation amount sensing Device 27.

Yarn component 22 is hung to be configured to engage (hook) with spun yarn 10, by the state of having engaged with spun yarn 10 and Yarn accumulation roller 21 rotates integrally, and can be wound up into spun yarn 10 on the outer peripheral surface of the yarn accumulation roller 21.

Yarn accumulation roller 21 can wind on its outer peripheral surface and stockpile a certain amount of spun yarn 10.Yarn accumulation roller 21 is by electricity The dynamic rotation of motor 25 driving.The spun yarn 10 wound on the outer peripheral surface of yarn accumulation roller 21 is rotated by yarn accumulation roller 21 It is wound as tightening the yarn accumulation roller 21, and the spun yarn 10 of 12 upstream side of draw ratio yarn accumulation device.That is, by making The yarn accumulation roller 21 that the state of spun yarn 10 has been wound on outer peripheral surface is rotated with egulation rotating speed, can be assigned and be provided to spun yarn 10 Tension and it is pulled out from pneumatic spinning machine 100 with fixing speed, and downstream conveyed with fixing speed.

Yarn accumulation quantity sensor 27 detects stockpiling for the spun yarn 10 stockpiled on yarn accumulation roller 21 in a non contact fashion Amount, and it is sent to cell controller 32.

Upstream side yarn guide 23 is configured in the slightly upstream side of yarn accumulation roller 21.Upstream side yarn guide 23 is relative to yarn The outer peripheral surface for stockpiling roller 21 suitably guides spun yarn 10.Upstream side yarn guide 23 prevents from propagating to come from pneumatic spinning machine 100 thin The turn of yarn 10 is transmitted to the further downstream of the upstream side yarn guide 23.

Front side in the framework 6 of spinning machinery 1, the position between pneumatic spinning machine 100 and yarn accumulation device 12 On, it is provided with yarn clearer 52.By the spun spun yarn 10 of pneumatic spinning machine 100, pass through before being wound by yarn accumulation device 12 Yarn clearer 52.The thickness of 52 pairs of yarn clearer mobile spun yarns 10 monitors, in the case where detecting the yarn defect of spun yarn 10, to Cell controller 32 sends yarn defect and detects signal.Yarn clearer 52 is sent to cell controller 32 for by the yarn clearer 52 The signal that the length of spun yarn is detected.As the signal, such as it is able to use the time phase for passing through yarn clearer 52 with spun yarn 10 The signal etc. of pass.

When receiving yarn defect detection signal, the cell controller 32 stops filling compressed air from open-end spinning immediately Set the ejection of 100 turn air-flow generation nozzle 127.Turn air-flow stops as a result, and the twisting of fibre bundle 8 stops, and fine Dimension beam 8 also stops to the importing of pneumatic spinning machine 100.Then, in pneumatic spinning machine 100, the continuous state of fiber is truncated, Spun yarn 10 is cut off.Later, cell controller 32 further makes drafting system 7 is equal to stop.In addition, cell controller 32 is to connector 3 sending control signal of trolley is moved into before the spinning unit 2.And then secondary certain driving air-flow spinning apparatus 100 etc., make Adapter trolley 3 carries out connector and restarts to wind.

Adapter trolley 3 has splicer (piecing devices) 43, suction pipe 44 and suction nozzle (yarn capture device) 46.When at certain When generating broken yarn, yarn cutting in a spinning unit 2, adapter trolley 3 is moved to the spinning unit 2 and is stopped on track 41. Suction pipe 44 is rotated in the up-down direction centered on axis, at the same suck and capture from pneumatic spinning machine 100 send out loose thread and to Splicer 43 guides.Suction nozzle 46 is rotated in the up-down direction centered on axis, while the package 45 supported from devices for taking-up 13 Attract and capture loose thread and is guided to splicer 43.Splicer 43 carries out the guided mutual connector of loose thread.

The downstream of yarn accumulation device 12 is provided with waxing attachment 9.Waxing attachment 9 is to from 12 direction of yarn accumulation device The mobile spun yarn 10 of devices for taking-up 13 assigns wax.

Devices for taking-up 13 has the reel cage arm 71 for being supported to can rotate around fulcrum 70.The reel cage arm 71 can will be used for The bearing of bobbin 48 of winding spun yarn 10 is that can rotate.

Devices for taking-up 13 has coiler drum 72 and traversing gear 75.Coiler drum 72 can be with bobbin 48 or package 45 Periphery face contact and driven.Traversing gear 75 has the traverse guide 76 that can be engaged with spun yarn 10.Devices for taking-up 13 To drive traverse guide 76 toward while double action, by the way that electric motor is (not shown) by drive member (not shown) Thus coiler drum 72 rotates the package 45 contacted with coiler drum 72, spun yarn 10 is made to be wound up into package while traversing On 45.In addition, the traverse guide 76 of traversing gear 75, by axis common to multiple spinning units 2, in each spinning unit 2 It is middle commonly to be driven.

Storing in bellows 80 has air supply source (such as compressed air supply source 400), which generates The air of the supplies such as each section, adapter trolley 3 to spinning unit 2.

The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.

Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that：It still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features； And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (4)

1. a kind of pneumatic spinning machine spin to fibre bundle generating spun yarn by turn air-flow, it is characterised in that：

Nozzle block is formed with turn air-flow and generates nozzle, which generates nozzle and spray spinning compression into spinning room Air, to generate the turn air-flow in the spinning room；The air that spins is piped with circulation, is circulated to the turn air-flow Generate the spinning compressed air of nozzle supply；And spinning switching valve, setting are matched in spinning air circulation Guan Shang, what the circulation and circulation for carrying out the spinning compressed air to circulate in spinning air piping of circulating were interdicted Switching, the spinning switching valve and the turn air-flow generate appearance of the spinning air between nozzle in circulation piping Product is set to, and becomes the first length by fibre bundle minister's degree of the loose thread of the spun yarn of the circulation blocking cutting, The volume is 1500mm3 or less.

2. pneumatic spinning machine as described in claim 1, which is characterized in that the spinning switching valve and the turn air-flow produce Spinning air circulation between raw nozzle, which is piped, is, be 2mm or more with bore, 4mm hereinafter, and piping length be 500mm or less.

3. pneumatic spinning machine as claimed in claim 1 or 2, which is characterized in that import road for the fibre bundle and import the spinning In yarn room；Lead path exports the spun yarn to spin by the turn air-flow to outside the spinning room；And air-supply spray Mouth block forms the oriented wind pushing nozzle for importing injection air-supply compressed air between road and the lead path.

4. pneumatic spinning machine as claimed in claim 3, which is characterized in that be further equipped with control unit, the control unit is to described Air-supply is controlled with compressed air from the injection of the wind pushing nozzle, so that the fibre bundle minister degree becomes than described first The second short length of length.