CN1049535A - Stretching direct slivering machine for tow - Google Patents
Stretching direct slivering machine for tow Download PDFInfo
- Publication number
- CN1049535A CN1049535A CN 90104981 CN90104981A CN1049535A CN 1049535 A CN1049535 A CN 1049535A CN 90104981 CN90104981 CN 90104981 CN 90104981 A CN90104981 A CN 90104981A CN 1049535 A CN1049535 A CN 1049535A
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- China
- Prior art keywords
- conveying cylinder
- pressure roller
- breaking
- described formula
- conveying
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
- D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
- D01G1/08—Converting tows to slivers or yarns, e.g. in direct spinning by stretching or abrading
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Ropes Or Cables (AREA)
Abstract
A kind of chemical fibre tow is used broken the formula of the breaking converter that direct slivering method is processed into chemical fibre strip, its each prestretching breaks end or breaks head has two by the conveying cylinder of transmission, and the pressure roller that hydraulic loaded also can rotate freely, chemical fibre tow force transmitted moves between conveying cylinder and pressure roller.For reducing at the prestretching broken end or breaking skidding in the head, make along big than first conveying cylinder of the peripheral speed of second conveying cylinder of operative orientation, and/or at pressure roller and along the peripheral speed of pressure roller in the pinch zones between second conveying cylinder of operative orientation, big than in the pinch zones between pressure roller and first conveying cylinder.
Description
The present invention relates to a kind of chemical fibre tow is used and break the formula of the breaking converter that direct slivering method is processed into chemical fibre strip, it is provided with some prestretching broken ends and breaks head, each prestretching broken end or break that head has that a hydraulic loaded the most handy and the pressure roller that can rotate freely and two are close to pressure roller and by the conveying cylinder of transmission, between conveying cylinder and the pressure roller that matches with it, force transmitted is moving the chemical fibre tow that will process.
The formula converter of breaking is used in a process, and the chemical fibre tow that long filament is made is changed into the spun chemical fibre strip that staple fibre constitutes.This process comprises a plurality of operations, and the chemical fibre tow is at first extended in these operations, then ruptures owing to constantly extending.What processed mainly is the sprunstron tow.In addition, also processed polyesters, viscose glue or Kevlar chemical fibre tow.
This class is broken the formula converter and is provided with a plurality of prestretching broken ends that are arranged in order and breaks head.They respectively are made up of pressure roller and two conveying cylinders that a hydraulic loaded also can rotate freely, and conveying cylinder is pressed against on the pressure roller and is driven.The chemical fibre tow force transmitted of processing is at conveying cylinder and attach troops to a unit and move between their pressure roller.
Because break end to breaking head and progressively strengthening transporting velocity from breaking head to breaking head from prestretching, chemical fibre tow elongation is increasing.When each monofilament of chemical fibre tow surpasses its extension at break amount, this single wire fracture.Because the extension at break amount difference of each monofilament, and because at two prestretchings broken ends or break that fracture position does not have rule in the zone between the head, so the monofilament of those fractures is kept by the remainder of chemical fibre tow, the situation of the whole disconnection of tow can not take place.
Offering what break the formula converter is the chemical fibre tow of rolled state, curls to have guaranteed the polymerization of tow.For tow fracture slivering process, must eliminate certainly and curl.For this purpose, near feeding frame and feeding head, established an additional prestretching broken end in the past, so, by the drawing zone (for example extending 5%) that is located at the front, original first prestretching broken end in the formula converter is broken in the chemical fibre tow feeding of decurl.But thisly be located at the prestretching broken end that the front is used for decurl and be eliminated because of uneconomical.
Actual conditions show that cancellation is located at the decurl district of front, have aggravated second conveying cylinder and the skidding between its pressure roller of attaching troops to a unit of chemical fibre tow suitable operative orientation in first prestretching broken end.Find in addition, also skid at roller surface.Having some following reasons to cause skids.Prestretching broken end or the rotating speed of breaking the conveying cylinder of head are identical.The suffered pulling force of the chemical fibre tow of porch is less, on the contrary, because from the higher prestretching broken end of next rotating speed or break the pulling force of head, the chemical fibre tow in exit is subjected to bigger tension.In addition, when pressure roller had elastic surface, the peripheral speed of pressure roller was also incomplete same with the conveying cylinder superficial velocity of attaching troops to a unit in it.Because the reducing of pressure roller coating diameter, make the peripheral speed of pressure roller be lower than the superficial velocity of conveying cylinder.The chemical fibre tow is from prestretching broken end or break the enter the mouth speed of outlet of head and may change equally, generally is the speed that has improved the chemical fibre tow, thereby has surpassed along the superficial velocity in the pinch zones of second conveying cylinder of operative orientation and pressure roller.This speed difference is corresponding to the minimizing of curling in the chemical fibre tow between entrance and exit.
For the chemical fibre tow of some kind, the shortcoming of bringing of skidding is a material that has worn away oiling treatment, is oligomer particles sometimes, so be certain in the deposition of breaking aggravation dust on the formula converter.For the dust of removing deposition must be established dust arrester, because must prevent to produce dust for the tow of some kind.As long as skid in the roller surface existence, the tow for some material will inevitably cause the deposition of dust at roller surface so.
In a word, owing to tow crimping, the tow tension difference of entrance and exit and with the pinch zones of conveying cylinder in reasons such as the pressure roller coating diameter reduces, caused skidding.
The objective of the invention is to further develop the formula of the breaking converter that this paper begins described type, make conveying cylinder and attach troops to a unit between their pressure roller, not cause and skid.
The technical measures of advising for achieving the above object are, making along operative orientation is big than first conveying cylinder of the peripheral speed of second conveying cylinder, and/or make pressure roller at it with along the peripheral speed in the pinch zones between second conveying cylinder of operative orientation, bigger than the peripheral speed in the pinch zones between pressure roller and first conveying cylinder.
Therefore, basic thought of the present invention is, eliminate the prestretching broken end and break skidding in the head by forming different superficial velocities, or skid to the major general and to reduce to a permissible degree, at this moment, the tow decurl that in breaking head, takes place and pass through the tow elongation compensate after Tension Difference, come balance with the raising transporting velocity.Eliminating the result of skidding by the present invention is significantly to have reduced the formation of dust in the process of breaking direct slivering.Because the dust that is produced can be absorbed fully, be correspondingly to have reduced dust flying upward in the machine works chamber so the minimizing dust forms the benefit of bringing.This is consistent with the effort that improves operator ' s health.In addition, in the manufacturing procedure after breaking direct slivering process, especially in mixing in doubling step, also reduced dust and flown upward, so also favourable operating personnel's health.
The difference of peripheral speed is preferably 1% to 11%.This has been enough to be avoided at the prestretching broken end for those chemical fibre tow commonly used and has broken skidding in the head.
Realize that structurally conveying cylinder has first kind of replacement scheme of different circumferential speed, be to make the external diameter of the external diameter of second conveying cylinder that at this moment, these two conveying cylinders are preferably with identical rotating speed rotation greater than first conveying cylinder.Second kind of replacement scheme is to make the rotating speed of the rotating speed of second conveying cylinder greater than first conveying cylinder, at this moment, preferably makes them that identical external diameter is arranged.It is also contemplated that these two kinds of schemes are combined that at this moment, existing different external diameter adopts different rotating speeds simultaneously again.In second kind of replacement scheme, two conveying cylinders have a public transmission device, and transmission device has the different retarding stages at two conveying cylinders; But two conveying cylinders also can respectively have the one's own transmission device that can independently control or adjust.
Preferably conveying cylinder being designed to the surface has a ceramic coating, and the roughness of coating is preferably between 10 to 50 microns.
The formula converter of breaking of the present invention is also advised, the coating of the flexible material of roller surface, pressure roller is added big towards second conveying cylinder direction towards the added load ratio of the direction of first conveying cylinder, therefore, pressure roller and first conveying cylinder between pinch zones in, its elastic layer is pressed to fall into and the corresponding amount that reduces of this place's pressure roller diameter, than in the pinch zones between pressure roller and second conveying cylinder for many.Therefore, by reduce pressure roller with the effective diameter of first conveying cylinder contact zone, reached the purpose that makes superficial velocity different, thereby, eliminated skidding of roller surface in technical simple mode.
The loading direction of pressure roller is preferably with respect to 5 ° to 75 ° of the vertical line deflections of two conveying cylinder lines of centres.
The elastomeric material of pressure roller coating preferably uses polyurethane rubber or natural gum.
At last, the hardness of the elastomeric material of pressure roller coating is between 40 to 110 in Durometer A hardness.
Have the prestretching of the present invention broken end of three kinds of different structure forms or break the formula of the breaking converter of head, give explanation below by means of schematic diagram.Wherein:
Fig. 1 breaks formula converter schematic diagram;
Fig. 2 breaks first kind of version schematic diagram;
Fig. 3 breaks second kind of version schematic diagram;
Fig. 4 breaks the third version schematic diagram of head.
Fig. 1 has represented a kind of formula converter of breaking, and import wherein by the chemical fibre tow 1 of breaking direct slivering.This chemical fibre tow is that 300000 monofilament of 3.3 dtexs (gram/ten thousand metres) are formed by for example fiber number, makes about 30 centimetres wide flat band and tie into 700 kilograms (KP) heavy bag 2 when chemical fibre is produced.Bag 2 is placed on breaks formula converter front, visible altogether two bags 2 among the represented in the drawings embodiment.
The formula converter of breaking has a feeding frame 3, and chemical fibre tow 1 is felt relieved in the feeding frame by straight and curved adjustable guide bar 4, and adjusts at its width.The curling part that is eliminated of the chemical fibre tow 1 that causes when meanwhile, chemical fibre is produced.In one of back feeding 5, chemical fibre tow 1 is further directed by means of adjustable guide bar, in width adjustment and decurl.
In the back of feeding 5, be provided with by prestretching broken end 6,7,8 and break 9,10,11 a basic processing district of forming.Chemical fibre tow 1 in this processing district prestretching broken end 6,7,8 and break 9,10,11 between progressively elongate or break.Prestretching broken end 6,7,8 and break 9,10,11 respectively comprise be coated with ceramic layer by the conveying cylinder 12 of transmission and attach troops to a unit in they with hydraulic loaded and be coated with the pressure roller 13 of polyurethane rubber layer.The concrete structure back of conveying cylinder 12 and pressure roller 13 also will describe in detail by Fig. 2 to 4.Utilize a main CD-ROM drive motor, by the transmission device of spindle conveying cylinder 12.The peripheral speed of conveying cylinder 12 can be heightened step by step by change-speed gearing.
Between 6 and second prestretching broken ends 7 of first prestretching broken end, be provided with a thermal treatment zone 14, the chemical fibre tow 1 that is in heated condition by 15 pairs of contact heating plates in the thermal treatment zone stretches, and shrinks by means of the releasable residue of the effect of evaporating to give one of material.
Chemical fibre strip 16 through breaking direct slivering leaves last break 11 after, by condenser 17, through outlet roller 18 in curling chamber 19.In order to produce so-called high bulk yarn (HB yarn), approximately 50% of product in steam way 20, handle, to unclamp its contraction with saturated vapor.Remaining 50% is directly delivered on the cooling conveyor 21 from the chamber 19 of curling.These two parts mixed afterwards, and wherein remaining contraction will be handled by means of saturated vapor under yarn conditions and unclamp in the part.The contraction of the fiber that has shunk (shortening 20% approximately) fiber by being crimped to yarn conditions becomes bulk, and thereby has constituted so-called high bulk yarn.At last, the chemical fibre strip 16 through breaking direct slivering is put into rotating bars tube 22 by cooling conveyor 21, utilizes pressure roller 23 to increase the reserves of bar tube.
Utilize Fig. 2 to 4 to introduce prestretching of the present invention broken end 6,7,8 below and break the multi-form of 9,10,11 concrete structure.
In the version shown in Figure 2, chemical fibre tow 1 in so-called " Ω " twines the loop, around two conveying cylinders 12 ', 12 " situation of curling has also been delineated out in and pressure roller 13 operations in chemical fibre tow 1.These two conveying cylinders 12 ', 12 " with the rotation of identical rotating speed.Be in that (second) conveying cylinder 12 of back along operative orientation " external diameter greater than that (first) conveying cylinder 12 of front '.The hydraulic loaded and the pressure roller 13 that can rotate freely attach troops to a unit in these two conveying cylinders 12 ', 12 ", pressure roller is provided with the elastic layer 24 of polyurethane rubber or natural gum.Pressure roller 13 be pressed in conveying cylinder 12 ', 12 " on, and it is sunken to cause elastic layer to be pressed, so in this zone, constituted conveying cylinder 12 ', 12 " and between the pressure roller 13 for pinch zones K ', the K of chemical fibre tow 1 ".Chemical fibre tow 1 because second conveying cylinder 12 in " slightly larger in diameter be 3% for example in first conveying cylinder 12 ' pact, make along the speed of operative orientation slightly to raise, so at pinch zones K " is to be higher than the speed conveying among the pinch zones K '.Design rightly two conveying cylinders 12 ', 12 " external diameter can make chemical fibre tow 1 basically not along conveying cylinder 12 ', 12 " the surface slide, thereby avoided skidding to the full extent.
Version shown in Figure 3, its basic scheme is with shown in Figure 2 identical, but in the version shown in Figure 3, two conveying cylinders 12 ', 12 " between, increased a conveying cylinder 25, chemical fibre tow 1 is around it rather than around pressure roller 13 operations." back also is provided with the 4th conveying cylinder 26 at second conveying cylinder 12.
In this version, chemical fibre tow 1 in the transporting velocity in exit than porch height for example 5%.For this reason, four conveying cylinders 12 ', 12 ", 25 and 26 diameter has nothing in common with each other.For instance, these four conveying cylinders 12 ', 25,12 ", 26 diameter is followed successively by 150 millimeters, 153 millimeters, 156 millimeters and 157.5 millimeters.Adapt with tow decurl and elongation, increase step by step these conveying cylinders 12 with the same rotational speed transmission ', 12 ", 25,26 peripheral speed, can farthest avoid skidding on each conveying cylinder surface.
Also can keep the conveying cylinder diameter constant, increase peripheral speed by improving rotating speed, to replace the scheme of above-mentioned increase diameter.An available decelerator correspondingly classification reaches this purpose.But the transmission device of independent control or adjustment can be set also for each conveying cylinder.
Adopt technical measures as shown in Figures 2 and 3, its objective is to reduce skidding on the conveying cylinder surface.In addition, also found to skid on pressure roller 13 surfaces, for some strand material, skidding to cause dust deposit at roller surface.
For avoiding in the pressure roller 13 with elastic layer 24 and second conveying cylinder 12 " between pinch zones K ", skidding, adopted another kind of measure in the third version shown in Figure 4.Similar to version shown in Figure 2, the chemical fibre tow 1 that curls among Fig. 4 also be " Ω " shape ground around first conveying cylinder 12 ', pressure roller 13 and second conveying cylinder 12 " move, and become the chemical fibre tow 1 of decurl when the stretching head that leaves shown in the figure.Second conveying cylinder 12 " have with its bigger diameter be higher than accordingly first conveying cylinder 12 ' peripheral speed, for example high by about 3%.Because chemical fibre tow 1 from pinch zones K ' to pinch zones K " the way removed and curled, and thereby elongation, so at chemical fibre tow 1 and second conveying cylinder 12 " between can not occur skidding.If pressure roller 13 along two conveying cylinders 12 ', diameter in 12 " direction of the vertical line S of axis A line V loads, and pressure roller 13 is at pinch zones K ', K so " is identical substantially, peripheral speed is also correspondingly identical substantially.Chemical fibre tow 1 during yet chemical fibre tow 1 is owing to be subjected to the higher pulling force in exit, thereby at pinch zones K " in will to carry than the middle faster speed of pinch zones K ', at pinch zones K " just can skid on the surface of pressure roller 13.For fear of producing above-mentioned situation, the loading of pressure roller 13 along " R " direction aim at first conveying cylinder 12 '.The result who does like this, not only cause at pinch zones K " in clamping force reduce, and " locate to compare, for example reduced 3% approximately owing to effective diameter is reduced, correspondingly; the superficial velocity of pressure roller 13 in this pinch zones K ' and pinch zones K at middle elastic layer 24 pressurizeds of pinch zones K '.Because pressure roller 13 loads along " R " direction that tilts, and has reduced skidding on pressure roller 13.
Claims (12)
1, chemical fibre tow (1) usefulness is broken the formula of the breaking converter that direct slivering method is processed into chemical fibre strip (16), it has some prestretching broken ends (6,7,8) and break the head (9,10,11), each prestretching broken end (6,7,8) or break the head (9,10,11) have a hydraulic loaded the most handy and the pressure roller (13) that can rotate freely and two be close to pressure roller (13) and by the conveying cylinder of transmission (12 ', 12 "); conveying cylinder (12 '; between 12 ") and the pressure roller (13) of attaching troops to a unit with it, force transmitted is moving the chemical fibre tow (1) that will process, it is characterized by: along operative orientation is that (peripheral speed of 12 ") is bigger than first conveying cylinder (12 '); and/or make pressure roller (13) at it with along the peripheral speed in the pinch zones between second conveying cylinder of operative orientation (12 ") (K "), and is bigger than the peripheral speed in the pinch zones (K ') between pressure roller (13) and first conveying cylinder (12 ') for second conveying cylinder.
2, according to the described formula of the breaking converter of claim 1, it is characterized by: the difference of peripheral speed is 1% to 11%.
3, according to claim 1 or the 2 described formula of breaking converters, it is characterized by: (external diameter of 12 ") is greater than the external diameter of first conveying cylinder (12 ') for second conveying cylinder.
4, according to the described formula of the breaking converter of one of claim 1 to 3, it is characterized by: (rotating speed of 12 ") is greater than the rotating speed of first conveying cylinder (12 ') for second conveying cylinder.
5, according to the described formula of the breaking converter of claim 4, it is characterized by: two conveying cylinders (12 ', 12 ") have a public transmission device, transmission device have at two conveying cylinders (12 ', the different retarding stages of 12 ").
6, according to the described formula of the breaking converter of claim 4, it is characterized by: two conveying cylinders (12 ', 12 ") respectively have the one's own transmission device that can independently control or adjust.
7, according to the described formula of the breaking converter of one of claim 1 to 6, it is characterized by: two conveying cylinders (12 ', the surface of 12 ") is equipped with ceramic coating.
8, according to the described formula of the breaking converter of claim 7, it is characterized by: the roughness of ceramic coating is between 10 to 50 microns.
9, according to the described formula of the breaking converter of one of claim 1 to 8, it is characterized by: the coating (24) of the surperficial flexible material of pressure roller (13), (12 ") direction is added wants big to pressure roller (13); therefore; pressure roller (13) is in the pinch zones (K ') between it and first conveying cylinder (12 '); its elastic layer (24) is pressed sunken degree and the corresponding amount that reduces of this place's pressure roller (13) diameter, big than in the pinch zones between pressure roller (13) and second conveying cylinder (12 ") (K ") towards the added load ratio of first conveying cylinder (12 ') direction towards second conveying cylinder.
10, according to the described formula of the breaking converter of claim 9, it is characterized by: the loading direction (R) of pressure roller (13) with respect to conveying cylinder (12 ', 5 ° to 75 ° of vertical line (S) deflections of 12 ") axis (A) line (V).
11, according to claim 9 or the 10 described formula of breaking converters, it is characterized by: the elastomeric material of pressure roller (13) coating (24) is polyurethane rubber or natural gum.
12, according to the described formula of the breaking converter of one of claim 9 to 11, it is characterized by: the hardness of the elastomeric material of pressure roller (13) coating (24) is Shore A 40 to 110.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19893926930 DE3926930A1 (en) | 1989-08-16 | 1989-08-16 | Synthetic fibre cable tearing converter - has structured transport cylinder and pressure roller speeds to prevent slip |
| DEP3926930.2 | 1989-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049535A true CN1049535A (en) | 1991-02-27 |
| CN1024932C CN1024932C (en) | 1994-06-08 |
Family
ID=6387164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104981 Expired - Fee Related CN1024932C (en) | 1989-08-16 | 1990-07-28 | Stretching direct slivering machine for tow |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1024932C (en) |
| DE (1) | DE3926930A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392163C (en) * | 1999-06-14 | 2008-06-04 | 纳幕尔杜邦公司 | Stretch break method and product |
| CN103469321A (en) * | 2013-09-23 | 2013-12-25 | 宁波大发化纤有限公司 | Drafting machine device with stable tow draft ratio |
| CN103469324A (en) * | 2013-08-29 | 2013-12-25 | 河南瑞贝卡发制品股份有限公司 | Self-compressing roll device for post-treatment of hair fibers |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4108380C2 (en) * | 1991-03-15 | 1995-01-26 | Seydel Vermoegensverwaltung | Method and device for converting, in particular cutting converting chemical fiber cables into spinnable chemical fiber tapes |
| BE1005144A6 (en) * | 1991-07-19 | 1993-05-04 | Linard Christiane | Control device of fibre mass between several trains cylinder for obtaining a comb recraquage system. |
| IT1254917B (en) * | 1992-04-24 | 1995-10-11 | Savio Spa | STABILIZATION PROCEDURE OF THE RETRACTION DEGREE OF A TAPE OF ARTIFICIAL FIBERS COMING FROM THE TEAR MACHINE. |
| US7083853B2 (en) | 1999-06-14 | 2006-08-01 | E. I. Du Pont De Nemours And Company | Stretch break method and product |
| US7100246B1 (en) | 1999-06-14 | 2006-09-05 | E. I. Du Pont De Nemours And Company | Stretch break method and product |
| KR20060124726A (en) | 2004-02-27 | 2006-12-05 | 이 아이 듀폰 디 네모아 앤드 캄파니 | Spun yarn, and method and apparatus for the manufacture thereof |
-
1989
- 1989-08-16 DE DE19893926930 patent/DE3926930A1/en not_active Withdrawn
-
1990
- 1990-07-28 CN CN 90104981 patent/CN1024932C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392163C (en) * | 1999-06-14 | 2008-06-04 | 纳幕尔杜邦公司 | Stretch break method and product |
| CN103469324A (en) * | 2013-08-29 | 2013-12-25 | 河南瑞贝卡发制品股份有限公司 | Self-compressing roll device for post-treatment of hair fibers |
| CN103469321A (en) * | 2013-09-23 | 2013-12-25 | 宁波大发化纤有限公司 | Drafting machine device with stable tow draft ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1024932C (en) | 1994-06-08 |
| DE3926930A1 (en) | 1991-02-21 |
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