CN1637179A - Drafting apparatus - Google Patents
Drafting apparatus Download PDFInfo
- Publication number
- CN1637179A CN1637179A CN 200410103731 CN200410103731A CN1637179A CN 1637179 A CN1637179 A CN 1637179A CN 200410103731 CN200410103731 CN 200410103731 CN 200410103731 A CN200410103731 A CN 200410103731A CN 1637179 A CN1637179 A CN 1637179A
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- CN
- China
- Prior art keywords
- endless belt
- mentioned
- drafting system
- bite
- feed mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Provided is a drafting apparatus to achieve a longer lifetime in service of a front roller therein, to realize labor-saving in spinning operation and to improve an operation efficiency. A drafting apparatus D includes a pair of fiber feeding means for transporting a sliver F to the downstream side while grasping the sliver F at a nip point N and stretching it, characterized in that one of the pair of fiber feeding means is constituted of an endless belt 12, and the pair of fiber feeding means is provided so that a feeding force acting in a direction of feeding the fiber bundle with the endless belt is concentrated on the nip point.
Description
Technical field
The present invention relates to while making fibre bundle extend the drafting system that its side conveying is downstream constituted, the particularly improvement of the fiber feed mechanism of this drafting system.
Background technology
As everyone knows, drafting system except by having drafting system D and being positioned at yarn manufacturing installation of spinning machine that the device of the spinning parts S in its downstream constitutes etc. etc., also is arranged in the fibre machineries such as Speed frames, drawing frame as shown in Figure 3.As their example, the drafting system D of spinning machine is by constituting as the right many counter extensioins roller of fiber feed mechanism.These drawing rollers are used for drawing-off sliver F, for example are made of front roller Rf, the 2nd roller R2 with apron, the 3rd roller R3 and rear roller Rb, and wherein any one is all combined by top roller 2 and bottom roll 3.This top roller and bottom roll are in contact with one another, reverse rotation mutually.Thereby, sliver can be directed between this top roller and the bottom roll, with the sliver drawing-off, and drafted fibre bundle is discharged by the front roller Rf of drafting system D by top roller and bottom roll.
In above-mentioned this drafting system D, existing drawing rollers are made of the rubber roller as Patent Document 1 or Patent Document 2 are disclosed.Like this, the rubber roller is being used as in the device of sliver feed mechanism, the problem that its life-span is short, spinning yarn quality is lower is being arranged, having to carry out interior replacing operation of short time, perhaps having to carry out operation such as grinding operation or UV treatment again.
[Patent Document 1] spy open flat 11-189933 communique (paragraph 0010, Fig. 3)
[Patent Document 2] spy opens flat 11-279854 communique (Fig. 1, Fig. 2)
Summary of the invention
The present invention makes in order to eliminate above-mentioned prior art problems, the main points of its particular importance provide following drafting system: make one of the fiber feed mechanism centering that constitutes drafting system D to be made of endless belt, thereby can realize the long lifetime of front roller Rf, and then laborsavingization of realization spinning operation, improve operating efficiency.
The present invention is in order to reach above-mentioned purpose, constituted following drafting system, particularly be by controlling fibre bundle at bite, being used for it while the drafting system of fiber feed mechanism that extends side conveying downstream to constituting, it is characterized in that, constitute of above-mentioned fiber feed mechanism centering by endless belt, and this endless belt is configured such that to the centripetal force of the direction of feed of fibre bundle it concentrates on above-mentioned bite.
And then, in the present invention, technical scheme 2 described inventions are in as technical scheme 1 described drafting system, it is characterized in that, above-mentioned endless belt is endowed tension force being wound at least under 2 states on the pulley, on the other hand, in order to form above-mentioned bite endless belt is contacted with bite, at 2 pulley rooms the bearing of trend of band and the direction of feed of fibre bundle are disposed across, and with tape wrapping thereon.
In addition, in the present invention, technical scheme 3 described inventions are in as technical scheme 1 or 2 described drafting systems, it is characterized in that, a plurality of feed mechanisms are to being provided with soon more by downstream feed speed separately more, and above-mentioned endless belt is configured in the fiber feed mechanism centering that the fiber feed speed is the fastest, lean on the downstream most.
Moreover, in the present invention, technical scheme 4 described inventions are in as technical scheme 3 described drafting systems, it is characterized in that, be used for pulley that above-mentioned endless belt is contacted with bite, on the width of above-mentioned endless belt, be formed with from the outstanding protuberance in the two edges of band, between the bite contact portion of this protuberance and endless belt, be formed with order difference part.
And then, in the present invention, technical scheme 5 described inventions are in as technical scheme 1～4 in each described drafting system, it is characterized in that, swirling eddy is affacted on the fibre bundle after drafted and use following device in the spinning machine of the spinning parts of twisting having, described device has been made of of above-mentioned fiber feed mechanism centering endless belt.
In addition, in the present invention, technical scheme 6 described inventions are in as technical scheme 5 described drafting systems, it is characterized in that, above-mentioned spinning parts is made of the hollow guiding axis body that is used for producing the swivel nozzle of swirling eddy and has a path of the yarn that has generated.
According to drafting system of the present invention, by constitute of fiber feed mechanism centering by endless belt, can realize the long lifetime of this fiber feed mechanism, can reach desired purpose thus.
Description of drawings
Fig. 1 is the side view that generally shows the major part summary of the spinning machine of having assembled drafting system of the present invention.
Fig. 2 is illustrated in this drafting system, and in the example of the 1st feed mechanism to the upside use endless belt of Rf, Fig. 2 A is the front view that generally shows its major part, and Fig. 2 B is a cutaway view of endless belt being cut open the overview of expression.
Fig. 3 is the side view that generally shows the major part summary of the spinning machine of having assembled existing typical drafting system.
Fig. 4 is the side view of major part summary that the 1st spinning machine of drafting system involved in the present invention has been used in expression.
Fig. 5 is in having used the 1st spinning machine of drafting system involved in the present invention, the 1st feed mechanism that expression forms bite to the overview side view of the relation of spinning parts.
The specific embodiment
Below, explain drafting system of the present invention based on specific embodiment shown in the drawings.Fig. 1 is the side view that generally shows the major part summary of the spinning machine that drafting system of the present invention is assembled into, Fig. 2 is illustrated in this drafting system, the upside of Rf is used the example of endless belt at the 1st feed mechanism, Fig. 2 A is the front view that generally shows its major part, and Fig. 2 B is a cutaway view of endless belt being cut open the overview of expression.
In the present invention, drafting system D by controlling sliver F with bite N, while making its fiber feed mechanism that extends side conveying downstream to constituting, in drafting system D, constitute the upside of the 1st feed mechanism by the endless belt mechanism 11 that comprises endless belt 12 to Rf, and be provided with the force application mechanism 13 of the application of force on bite N on this endless belt 12, so that centripetal force is concentrated to the direction of feed of sliver F.
Above-mentioned the 1st feed mechanism is made of the mechanism that comprises endless belt 12 and 2 pulleys 14,15 the endless belt mechanism 11 of Rf at least, and above-mentioned endless belt 12 is applied in tension force under the state that is wound at least 2 pulleys 14,15.In the embodiment of Figure 1 and Figure 2, pulley 14 makes endless belt 12 contact with bite N in order to form above-mentioned bite N, by the line EL of the bearing of trend of the endless belt mechanism 11 of 2 pulley rooms and fibre bundle direction of feed FD being disposed across and can realizing.Like this, sliver F only contacts with endless belt 12 at bite N, so that focus on above-mentioned bite N, make a bit elongated to the time before contact next time of endless belt 12 by configuration endless belt 12, can delay to wear and tear and the realization long lifetime with sliver F to the centripetal force of the direction of feed of sliver F.And then, owing to concentrate on bite N,, can further delay wearing and tearing so can make the contact site with sliver F become Min. with contacting of sliver F.
In the present invention, a plurality of fiber feed mechanisms are right, from the downstream, by the 1st feed mechanism Rf, the 2nd feed mechanism with apron are constituted Rb R3 and the 4th feed mechanism R2, the 3rd feed mechanism, wherein the 2nd, the 3rd and the 4th feed mechanism to R2, R3 and Rb by top roller 2 and bottom roll 3 combinations are constituted, the 1st feed mechanism to Rf by endless belt mechanism 11 and bottom roll 3 combinations are constituted.These fiber feed mechanisms are fast more by downstream feed speed separately more.On the other hand, above-mentioned endless belt 12 be configured in the fiber feed speed the fastest, by the fiber feed mechanism in downstream to, promptly the 1st feed mechanism is among the Rf.
At this, enumerate relevant make swirling eddy used and with sliver F twisting, can realize the technology of the spinning parts of the high-speed spinning more than the 200m/min, be used as using the example of drafting system D involved in the present invention.As corresponding therewith technology, known have:
(1), for example opens the 2001-164432 communique and the spy opens disclosed technology in the 2002-227043 communique the spy by the technology (spinning speed is more than the 300m/min) of hollow guiding axis body with swivel nozzle generation yarn;
(2) (spinning speed is 200～300m/min), for example opens disclosed technology in the flat 8-209463 communique at No. 3185393 communiques of special permission and spy to generate the technology of the yarn of hanking tie by 2 reverse swirling eddy effects;
(3) (spinning speed is 300～350m/min), for example opens flat 11-279854 communique and spy the spy and opens in the flat 8-209463 communique disclosed technology etc. to generate the technology of the yarn of hanking tie by swivel nozzle and roller formula false-twisting device.
In above-mentioned technology, about using the spinning parts of swirling eddy, the structure that is generated yarn by hollow guiding axis body and swivel nozzle described in above-mentioned (1) is described based on Fig. 5.As shown in Figure 5, spinning parts S is made of nozzle block 4 and hollow guiding axis body 5, in spinning parts S, drafted sliver F is supplied to nozzle block 4 and hollow guiding axis body 5.This nozzle block 4 has swivel nozzle 6, and sliver F is subjected to the effect of the rotating flow of swivel nozzle at the leading section of hollow guiding axis body 5, is directed in the yarn path 7 of hollow guiding axis body 5.Carry out the spinning of real sth. made by twisting shape yarn thus, produced yarn Y.The yarn Y that produces is directed into winch spool 8 via delivery roller Rd, is wound into package 9.In addition, the yarn of yarn Y structure is by linear velocity ratio, the i.e. decision of magnification on spinning parts S part of front roller Rf and delivery roller Rd.
In the spinning machine described in above-mentioned (3), as shown in Figure 4, after carrying out the drawing-off of sliver F by front roller Rf, the 2nd roller R2, the 3rd roller R3, it is guided to air nozzle S1 and a pair of twisting roller T that constitutes spinning parts S, yarn is twisted by the interlock of air nozzle S1 and twisting roller T.Its twisting efficiency is higher, and the result can be with (more than the 200m/min) spinning at a high speed.Spinning speed is high more, and promptly the feed speed of drafting system D is fast more, and longevityization effect of the present invention is just remarkable more.
But, under the situation of the high-speed spinning of these spinning speeds more than 200m/min, in this drafting system, between with the upper leather ring and following apron of sliver F, when directing into front roller Rf by the 2nd roller R2, might produce because of the effect of following air-flow to the bite N of front roller Rf fibre bundle diffusion, make the regularity variation that spins.
So, in the present invention, be used for pulley 14 that above-mentioned endless belt 12 is contacted with bite N, on the width of above-mentioned endless belt 12, have outstanding protuberance 16,17 from two edges 12a, the 12a of this endless belt 12, this protuberance 16,17 and endless belt 12 and bite N contact portion between form order difference part d.Promptly, if the external diameter of establishing above-mentioned pulley 14 is the external diameter of φ 1, protuberance 16,17 is that the thickness of φ 2 and endless belt 12 is t, then by being set at [(φ 2-φ 1)/2]＜t, and form order difference part d.Thus, can not only prevent to follow air-flow to overflow, the feeding disorder of sliver F, make its long lifetime, and the effect that prevents that spinning yarn quality from reducing is arranged from above-mentioned order difference part D.These effects are integrated, and in the present embodiment, the feeding of the sliver F that brings by the long-time use that suppresses along with parts can reduce the variation of the feeding of sliver F as far as possible over time and by the instantaneous variation of following air-flow to bring.Thereby, stable sliver can be provided, total energy obtains uniform yarn quality.
In addition, in the above-described embodiment, illustrated drafting system D involved in the present invention has been applied to situation in the spinning machine that uses swirling eddy, but the present invention is not limited to this, so long as have the fibre machinery of drafting system, also can be applied among roving frame, drawing frame, the ring throstle etc.
In addition, under the situation of existing use rubber roller, because this rubber roller is rotatably mounted via bearing etc., be installed on the axle, so the problem that needs complicated operation when changing is arranged, but by as the present invention, using endless belt 12, only endless belt 12 is decontroled from the state of giving pulley 14,15 tension force, just can be changed endless belt 12 simply, can improve maintainability.
Claims (6)
1, a kind of drafting system, by controlling fibre bundle at bite, being used for it while extending fiber feed mechanism that side downstream carries to constituting, it is characterized in that, constitute of above-mentioned fiber feed mechanism centering by endless belt, and this endless belt is set to concentrate on above-mentioned bite to the centripetal force of the direction of feed of fibre bundle.
2, drafting system as claimed in claim 1, it is characterized in that, above-mentioned endless belt is endowed tension force being wound at least under 2 states on the pulley, on the other hand, in order to form above-mentioned bite endless belt is contacted with bite, at 2 pulley rooms the bearing of trend of band and the direction of feed of fibre bundle are disposed across, and the roll coil of strip is around on the pulley.
3, drafting system as claimed in claim 1 or 2 is characterized in that, a plurality of feed mechanisms are to being provided with soon more by downstream feed speed separately more, and above-mentioned endless belt is configured in the fiber feed mechanism centering that the fiber feed speed is the fastest, lean on the downstream most.
4, drafting system as claimed in claim 3, it is characterized in that, be used for pulley that above-mentioned endless belt is contacted with bite, on the width of above-mentioned endless belt, be formed with from the outstanding protuberance in the two edges of band, between the bite contact portion of this protuberance and endless belt, be formed with order difference part.
5, as each described drafting system in the claim 1～4, it is characterized in that, swirling eddy is affacted on the fibre bundle after drafted and in the spinning machine of the spinning parts of twisting having, use following device, described device has been made of of above-mentioned fiber feed mechanism centering endless belt.
6, drafting system as claimed in claim 5 is characterized in that, above-mentioned spinning parts is made of the hollow guiding axis body that is used for producing the swivel nozzle of swirling eddy and has a path of the yarn that has generated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003424665A JP2005179857A (en) | 2003-12-22 | 2003-12-22 | Drafting device |
| JP424665/2003 | 2003-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1637179A true CN1637179A (en) | 2005-07-13 |
Family
ID=34544929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410103731 Pending CN1637179A (en) | 2003-12-22 | 2004-12-22 | Drafting apparatus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1548162A3 (en) |
| JP (1) | JP2005179857A (en) |
| CN (1) | CN1637179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534885A (en) * | 2010-12-03 | 2012-07-04 | 株式会社丰田自动织机 | Draft device in prespinning process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006011128B4 (en) | 2006-03-08 | 2016-04-28 | Deutsche Institute für Textil- und Faserforschung Stuttgart | Roll stretching device |
| WO2010016808A1 (en) * | 2008-08-04 | 2010-02-11 | Ozdilek Alisveris Merkezleri Ve Tekstil Sanayi Anonim Sirketi | Compact yarn manufacturing system |
| CN104963051B (en) * | 2015-07-09 | 2018-03-13 | 上海兰邦工业纤维有限公司 | Mechanical compact spinning manufacture aramid fiber yarn and its method, apparatus of aramid fiber covering yarn and the aramid fiber covering yarn of preparation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE816069C (en) * | 1950-03-08 | 1951-10-08 | Deutscher Spinnereimaschb Ingo | Drafting system for spinning machines |
| GB1184787A (en) * | 1960-11-20 | 1970-03-18 | Mackie & Sons Ltd J | Improvements relating to Textile Drafting Apparatus |
| DE10260025A1 (en) * | 2002-12-19 | 2004-07-08 | Deutsche Institute für Textil- und Faserforschung (DITF) | Coating for drafting rollers |
-
2003
- 2003-12-22 JP JP2003424665A patent/JP2005179857A/en active Pending
-
2004
- 2004-11-18 EP EP04027376A patent/EP1548162A3/en not_active Withdrawn
- 2004-12-22 CN CN 200410103731 patent/CN1637179A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534885A (en) * | 2010-12-03 | 2012-07-04 | 株式会社丰田自动织机 | Draft device in prespinning process |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1548162A2 (en) | 2005-06-29 |
| JP2005179857A (en) | 2005-07-07 |
| EP1548162A3 (en) | 2006-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |