CN1498991A - Drafting assembly for ring throstle - Google Patents
Drafting assembly for ring throstle Download PDFInfo
- Publication number
- CN1498991A CN1498991A CNA200310102641XA CN200310102641A CN1498991A CN 1498991 A CN1498991 A CN 1498991A CN A200310102641X A CNA200310102641X A CN A200310102641XA CN 200310102641 A CN200310102641 A CN 200310102641A CN 1498991 A CN1498991 A CN 1498991A
- Authority
- CN
- China
- Prior art keywords
- roller
- drafting system
- induction element
- fiber
- mentioned
- 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
Links
Classifications
-
- 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
- D01H5/44—Adjusting drafting elements, e.g. altering ratch
-
- 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
- D01H5/88—Cradles; Tensors
Abstract
A ring spinning frame has a drafting station with a variable-length cage to alter the length of the upper belt or the position of a roller. The distance (L) from the clamping line between the first pair of drafting rollers (62, 71) and the previous set of rollers (55) is adjustable. A ring spinning frame has a drafting station with a variable-length cage to alter the length of the upper belt or the position of a roller. The distance (L) from the clamping line between the first pair of drafting rollers (62, 71) and the previous set of rollers (55) is adjustable. The distance (L) is between 3% and 21% greater than the length of the longest fiber in the incoming material (54). In the case of a two-inch fiber the gap (L) is 53-57 mm. The fiber open transfer zone between the mid roller pairs (55) and first pair of drafting rollers (62, 71) is optimized by an upper belt cage (77), in conjunction with adjustment of the upper rollers.
Description
Technical field
The present invention relates to a kind of drafting system that is used for ring throstle, the yarn guiding of this drafting system can be by single appointment.
Background technology
For ring throstle, in most cases use 3 rows' drafting system, promptly have the drafting system of 3 bottom rolls, to distributing corresponding top roller by bottom roll.In main drawing area, usually be provided with the apron guider that constitutes by a pair of apron, wherein this main drawing area be formed on comprise a delivery roller that an output bottom roll and coupled top roller constitute to and the upstream roller that constitutes by bottom roll and coupled top roller between comprise fiber less and less and therefore must be guided preferably because in this zone, treat the fiber skein of drawing-off and transmission.These are similar to the apron of pressure arm, and the distance between guider or dust cage length and the fiber guide element is very important obtaining aspect the preferably possible drawing-off effect.On the one hand this to apron as far as possible near-earth reach the right clamping line of this delivery roller, so that avoid floating fiber and therefore also avoided fiber loss, and on the other hand middle roller to and delivery roller to clamp distance needn't be too short therefore so that not at the two ends gripping fibers and avoided the danger that damages.In most of the cases, delivery roller is static to being arranged to, and upstream apron roller to moving so that can adjust the length of main drawing area and adjust according to fibrous material.The parameter of the device of main drawing area for example is dust cage length and annex, the composition of apron, the design of deflecting element, at the absolute growth of middle roller to this main drawing area of limiting with the clamping line of delivery roller centering, pressure on director element, the spacing distance between upper leather ring and following apron and distance from apron discharge edge to the right clamping line of delivery roller.
If artificial fibre is spinned the formation ring spinning line, at first be cut into single fiber as the fibre bundle of continuous fibers production, further process then.The length that is generally used for cutting this artificial fibre is two inches, corresponding approximately 51mm.For such fibre length, for example in the prior art, the length of the dust cage of setting is roughly 43mm or 59mm roughly, and this dust cage length is being restricted aspect the performance of running, therefore also damaged quality of yarn, because fiber skein is no longer preferably guided.
Thereby the present invention is based upon on the problem of optimization to the drawing-off improvement yarn qualities of such artificial fibre.
This problem is solved like this, promptly the distance between the right clamping line of the right clamping line of delivery roller and upstream roller is changed according to these elements and the distance between them, these elements and the distance between them nowadays normally conventional and be called half standardization.In order further to optimize the guiding of fiber skein, the improved induction element for the treatment of that is called guiding bridge spare in this time apron has been proposed in a preferred embodiment.
Description of drawings
Further advantage of the present invention and feature draw from the following specification that embodiment in the accompanying drawings is shown, these embodiment clearly be provide as example and never be used for qualification.Accompanying drawing comprises:
Fig. 1 letter illustrates the cross section by the ring throstle with conventional duo roth system;
Fig. 2 letter illustrates the cross section by the ring spinning position with duo roth system, and this drafting system is provided with pneumatic beaming device; With
Fig. 3 letter illustrates a guiding bridge spare.
The specific embodiment
Fig. 1 shows a duo roth system that is used for the routine of ring throstle.This duo roth system has a feeding roller to 50, and this roller comprises a bottom roll 51 and a top roller 52 along the running of the longitudinal direction of machine to 50.Top roller 52 common and adjacent top rollers make up so that form the device that is called two top rollers.At the supply roller front is provided with a feeding funnel 53.Along fibrous material 54 rotation directions that are called rove or slub at feeding roller to 50 back with roller in the middle of having to 55.Middle roller contains a bottom roll 56 and a top roller 57 along the longitudinal direction running of machine to 55, and top roller 57 also is combined with an adjacent top roller as a pair of top roller in this case.At middle roller 55 upstream is provided with a feeding funnel 53 similarly.This bottom roll 56 is hung with apron 58, and this time apron 58 is around an induction element 59,59 ' guiding.Top roller 57 is hung with a upper leather ring 60, and this upper leather ring 60 is similarly by an induction element 61 guiding.This time apron 58 and upper leather ring 60 are turning round between this bottom roll 56 and the induction element 59 and between top roller 57 and the induction element 61 in parallel with each other.
Followed a delivery roller to 62 after middle roller is to 55, this delivery roller comprises a bottom roll 63 and top roller 64 to 62, and top roller 64 is combined with adjacent top roller similarly to form a pair of top roller.
Bottom roll 56 is faster than bottom roll 51 runnings, bottom roll 63 is faster than bottom roll 56 runnings, to such an extent as in each situation feeding roller to 50 and middle roller to 55 between and middle roller to 55 and delivery roller to 62 between with the fibrous material drawing-off dividually that enters, i.e. drawing-off or stretching, extension.In this situation, in the middle of the dominant draft effect occurs in roller to 55 and delivery roller between 62.
Drawing-off becomes the fibrous material of the fineness of yarn of expectation to be directed on the steel traveler 67 by Yarn guide device 65, and steel traveler 67 is driven by a spindle and turns round around rings 68.Enclose from this steel wire, be delivered on the spool 69 this yarn of on this spool, reeling at the fibrous material of the twisting that is subjected on this aspect spinning.
Fibrous material 54 can comprise the artificial fibre of natural fabric or mixing fully.These artificial fibres are by the continuous long filament production of initial spinning, and these endless filament yarns are cut into single short fiber then, are called staple fibre.Thereby the preferred length of fiber is 2 inches, promptly about 51mm.In order advantageously to spin these artificial fibres, regulation utilizes dust cage that length is respectively 43mm or 59mm at middle roller 55 clamping line and delivery roller to be guided fiber between to 62 clamping line usually.According to the present invention, provide one for the length of 44-50mm in the preferred distance of delivery roller open at its front fiber delivery areas by improved dust cage, be preferably 47mm, so that guarantee long as far as possible controlled fiber guide.
Drafting system is to be provided with a pneumatic beaming device with difference according to the drafting system of Fig. 1 shown in figure 2.Therefore, replace having comprised that the delivery roller of bottom roll 63 and top roller 64 is right, and for example perforation roller 70 of a larger diameter be provided that this perforation roller 70 has at first formed delivery roller to 71 with a top roller 72.Another top roller 73 is pressed against on this perforation roller 70, and this perforation roller 70 is formed for the clamping line of fibrous material, by this clamping line, has prevented the counter motion of twist direction, by steel traveler and rotary spindle this direction is applied to fibrous material.
Top roller 72 and 73 defines the position that is called draw zone, and the fibrous material that wherein has been extended into its final fineness is compressed or boundling along horizontal direction.Perforation roller 70 inside that drive in rotation are provided with a suction element 74, this suction element 74 has a suction socket 75, and straight line is opened and be preferably to this suction socket 75 towards draw zone.This suction element 74 is arranged on the suction tube 76, and this suction tube 76 is opened towards suction socket 75, and is connected to a unshowned negative pressure source or a vacuum source.
By this embodiment, a kind of improvement also is provided, preferably by changing spacing distance L itself, and correspondingly utilize length for the bigger dust cage of the best 47mm of 44-55mm this delivery roller to 71 clamping line promptly bore a hole between roller 70 and the top roller 72 the clamping line and between the clamping line between roller 56 and the roller 57, shorten the zone of fiber Z of opening.
The yarn higher than so far quality produced in other being used to according to the present invention may be that structure by a new guiding bridge spare 59 obtains, and as shown in the figure, does not limit for example shown in Fig. 3.
Each parameter about guiding bridge 59 and this drafting system can obtain a large amount of lists of references.Our application DE344319 for example provides this fiber skein of shape according to this guiding bridge and dust cage structure preferably according to a basic forming path, and our application DE19807895.1 then provides the bending area that this guiding bridge has at least 3 different curvature, and our EP specification 450361 is described a kind of guiding bridge with a step.The advantage of these embodiment is to have described their length; And being combined to so far of two in them also do not considered at least.
Even these advantageous embodiments also do not provide satisfied result.Therefore the method for doing the best according to the present invention is between known method; Provided best result by a bridge spare 59, has the shape that limits by at least one curvature at this bridge spare of the porch in fibre transportation path 57 59, but the best shape that is limited by a plurality of radius of curvature, in the outlet of fiber skein guiding, this bridge spare 59 preferably has a step 78.Have following effect like this: promptly fiber remains on the inlet of guide bridge part 59 well, but securely mildly be directed to the sweep 70 of this bridge spare 59 with apron speed, 80,81, stretch abreast and carry, last because the interruption of fixed guide system, fiber is by soft and pull out and mildly be accelerated from fiber skein equably.Therefore this provides and has preferably prevented uncontrollable drafting process.
Claims (15)
1. drafting system, especially for ring throstle, it has at least 3 bottom rolls (51,56,63; 51,56,70), distribute to the corresponding top roller of each bottom roll (52,57,64; 52,57,72), therefore in main drawing area, comprise output bottom roll (63 one, 70) and coupled top roller (64,72) delivery roller is to (62,71) and the upstream roller that has comprised bottom roll (56) and coupled top roller (57) to an apron being set between (55) to (58,60) and an induction element (59), it is characterized in that, at this delivery roller to (62,71) the clamping line and the roller of upstream can be adjusted in each situation according to the fibre length of fibrous material to be processed to the spacing distance (L) between the clamping line of (55) and/or in zone (Z) that delivery roller transmits the fiber of the opening between the clamping line of (55) the roller of the clamping line of (62,71) and upstream.
2. drafting system according to claim 1,, it is characterized in that, be 3%-21% greater than the longest fiber of this to be processed fibrous material (54) to (62,71) and middle roller to the spacing distance (L) between the clamping line of (55) at delivery roller.
3. according to claim 1 or 2 described drafting systems, it is characterized in that by the fibre length that is processed into 2 inches (about 51mm) of fibrous material, the spacing distance (L) between this clamping line is 45-62mm, better 51-58mm, particularly 53-57mm.
4. according to the described drafting system of above-mentioned each claim, it is characterized in that, at middle roller to (55) and delivery roller to (62; The fiber delivery areas (Z) of the opening 71) is passed through in conjunction with described roller (55,62; 71) top roller (64,57,52 that a adjustment is provided with; 72) use the upper leather ring dust cage of adjusting according to the length of staple fibre (77) optimised.
5. according to the described drafting system of above-mentioned each claim, it is characterized in that, be connected with the induction element (59) of this time apron (58) with flushing along the dust cage (77) of the upper leather ring of the direction of fiber operation.
6. according to the described drafting system of above-mentioned each claim, it is characterized in that upper leather ring dust cage (77) is arranged to indentation with comparing along the induction element (59) of the following apron (58) of the traffic direction of fiber.
7. according to the described drafting system of above-mentioned each claim, it is characterized in that this upper leather ring dust cage (77) is arranged to travel forward with comparing along the induction element (59) of the following apron (58) of the traffic direction of fiber.
8. according to the described drafting system of above-mentioned each claim, it is characterized in that, by to be processed be the fibre length of the fibrous material of 2 inches (about 51mm), the length of this upper leather ring (77) is 44-52mm, is preferably 47mm.
9. according to the described drafting system of above-mentioned each claim, it is characterized in that the side of induction element (59) towards upper leather ring (77), except the front region at the direct of travel of this fiber skein has different bending area (79,80,81) outside, also have a step (78) in the part in the back, promptly this step is positioned at the opposite of this delivery roller to (62).
10. drafting system according to claim 6, it is characterized in that, length at the step (78) of this induction element of the exit of this time of fiber direct of travel apron (58) (59) is 2-18mm, preferred 5-11mm, 5-8mm particularly, its crooked highly relatively peak is 0.5-2.8mm, preferred 1.4-2.4mm, particularly 1.8-2.2mm.
11. according to the described drafting system of above-mentioned each claim, it is characterized in that, the bending of this induction element (59) has at least one bending area of at least one curvature, be preferably a plurality of different bending area with a plurality of different curvature, 3 different bending areas (79 that particularly have 3 different curvature, 80,81).
12., it is characterized in that the bending of this induction element (59) can change to 50mm, preferred 7-30mm, particularly 10-18mm from 5 according to the described drafting system of above-mentioned each claim on length.
13., it is characterized in that the transition from the step (78) of this induction element (59) to the bending (79,80,81) of this induction element (59) is the right angle according to the described drafting system of above-mentioned each claim.
14., it is characterized in that the transition from the step (78) of this induction element (59) to the bending (79,80,81) of this induction element (59) is a streamline shape according to the described drafting system of above-mentioned each claim.
15. according to the described drafting system of above-mentioned each claim, it is characterized in that, along the total length of the induction element (59) of fiber traffic direction can be according to middle roller to the structure of (55) and delivery roller to (62; 71) structure is selected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10251084.9 | 2002-10-28 | ||
| DE10251084A DE10251084A1 (en) | 2002-10-28 | 2002-10-28 | Fiber drafting station for ring spinning frame, has variable distance settings between feed rollers and drafting rollers set in accordance with fiber length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1498991A true CN1498991A (en) | 2004-05-26 |
Family
ID=32087326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200310102641XA Pending CN1498991A (en) | 2002-10-28 | 2003-10-27 | Drafting assembly for ring throstle |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1498991A (en) |
| DE (1) | DE10251084A1 (en) |
| IT (1) | ITMI20031953A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348792C (en) * | 2004-08-02 | 2007-11-14 | 刘志祥 | Spinning machine compact spinning drafting system |
| CN101886302A (en) * | 2010-06-23 | 2010-11-17 | 东华大学 | Periodical terylene-viscose blended yarn processing device and method thereof |
| CN101506416B (en) * | 2006-08-28 | 2011-06-15 | 欧瑞康纺织有限及两合公司 | Drive of twin upper rolls in drawing frames |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017071870A (en) * | 2015-10-06 | 2017-04-13 | 村田機械株式会社 | Draft device, spinning machine, and spinning method |
-
2002
- 2002-10-28 DE DE10251084A patent/DE10251084A1/en not_active Withdrawn
-
2003
- 2003-10-10 IT IT001953A patent/ITMI20031953A1/en unknown
- 2003-10-27 CN CNA200310102641XA patent/CN1498991A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348792C (en) * | 2004-08-02 | 2007-11-14 | 刘志祥 | Spinning machine compact spinning drafting system |
| CN101506416B (en) * | 2006-08-28 | 2011-06-15 | 欧瑞康纺织有限及两合公司 | Drive of twin upper rolls in drawing frames |
| CN101886302A (en) * | 2010-06-23 | 2010-11-17 | 东华大学 | Periodical terylene-viscose blended yarn processing device and method thereof |
| CN101886302B (en) * | 2010-06-23 | 2012-07-04 | 东华大学 | Periodical terylene-viscose blended yarn processing device and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10251084A1 (en) | 2004-05-06 |
| ITMI20031953A1 (en) | 2004-04-29 |
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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 |