CN201128794Y - Drafting lower roller grooved serrated structure - Google Patents
Drafting lower roller grooved serrated structure Download PDFInfo
- Publication number
- CN201128794Y CN201128794Y CNU200720041893XU CN200720041893U CN201128794Y CN 201128794 Y CN201128794 Y CN 201128794Y CN U200720041893X U CNU200720041893X U CN U200720041893XU CN 200720041893 U CN200720041893 U CN 200720041893U CN 201128794 Y CN201128794 Y CN 201128794Y
- Authority
- CN
- China
- Prior art keywords
- arc length
- tooth
- groove
- roller
- lower roller
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The utility model relates to a jugged groove for a drafting bottom roller, which pertains to the technical field of textile machinery. The jugged groove is formed by rolling; the external section of the jugged groove consists of a tooth crest arc length composed by an excircle of a roller, a curved line connected with the tooth crest arc length in a smooth and transitional way and a tooth bottom arc length tangential to the curved line. The jugged groove for the drafting bottom roller provided by the utility model has a smooth and transitional groove working surface, which improves the abrasion of belt rollers and prolongs the service life for the belt rollers; additionally, the contact area between the belt rollers and the roller groove working area is increased, the durable grip to yarn is increased; and the durable grip for the groove working area and the belt roller is uniformly varied, in this way, the mechanical wave in the process of spinning is reduced and the spinning quality is significantly improved.
Description
Technical field
The utility model relates to a kind of drafting component of textile machine, especially relates to a kind of groove tooth-shape structure of drafting lower roller, belongs to technical field of textile machine.
Background technology
The drafting lower roller of spinning machine is made of optical axis, the groove working face and the guide hole that are disposed between the optical axis, is one of very important part in the spinning machine.The roller that groove working face on the drafting lower roller is corresponding with top roller is formed jaw, grips yarn and carries out drawing-off.The profile of tooth of spinning process mechanical wave that middle roller produces and drafting lower roller working face has substantial connection.Present disclosed drafting lower roller groove tooth-shape is trapezoidal or for circular arc, because the draw ratio of drafting lower roller is bigger, therefore in process such as rolling, the alignment of roller, heat treatment, all can cause the roller distortion, makes the roller circular runout be difficult to control.For stepped tooth, after the cylindricalo grinding of ditch bottom roll, addendum width is difficult for being consistent, because the excessive face of tooth top and its both sides is excessive for sudden change, because of the groove working face exists the obtuse angle, can quicken the wearing and tearing of roller, and can produce in spinning process
Give birth to mechanical wave, influence the uniformity and end product quality that bar is done thickness.And for round-arced tooth, though the groove working face is the cambered surface transition, but because the roller cylindrical only is the peak of this groove working face, reduced the contact area of groove working face and roller, the variation that has simultaneously also increased jaw place yarn grasping force also can influence the uniformity and end product quality that bar is done thickness.
Summary of the invention
The purpose of this utility model provides a kind of groove working face smooth transition, and roller is not easy to wear, can improve the groove tooth-shape structure of the drafting lower roller of yarn grasping force.
The utility model is that the technical scheme that achieves the above object is: a kind of groove tooth-shape structure of drafting lower roller, it is characterized in that: to be that roll extrusion is rolling form described groove tooth-shape, the tooth top arc length that the cross section outline of groove tooth-shape is made of the roller cylindrical, the curve that is connected with tooth top arc length smooth transition and constitute with arc length at the bottom of the tooth of this contact of a curve.
The utility model adopts the advantage after the technique scheme:
1, the tooth top arc length that constitutes by the roller cylindrical of its groove tooth-shape of drafting lower roller of the present utility model, the curve that is connected with tooth top arc length smooth transition and constitute with arc length at the bottom of the tooth of this contact of a curve, therefore the groove working face contacts with roller and is the contact of multi sphere face, do not exist original sudden change excessive, improve the roller wear condition, can prolong the service life of roller.
2, the utility model is owing to adopt the roller cylindrical as the tooth top arc length, curve is connected with tooth top arc length smooth transition with arc length at the bottom of the tooth respectively again, owing to increased the contact area of roller and roller groove working face, under the working face size and jitter condition that guarantee drafting lower roller, can improve the yarn grasping force between roller and the drafting lower roller, especially the grasping force of roller groove working face and roller changes comparatively even, therefore yarn can be not smooth in the spinning process, reduce the mechanical wave in the spinning process, and the dried uneven phenomenon of bar is also controlled, and has increased substantially spinning quality.
3, the groove tooth-shape of the utility model drafting lower roller by tooth top arc length, tooth at the bottom of arc length and curve constitute, therefore can directly adopt roll extrusion to roll forms, the tooth top arc length no longer is subjected to the tooth top width differentia influence, can be according to the working face size of workpiece, beat and can judge directly whether roller can produce mechanical wave, realized that roller need not spinning machine and just can detect roller and whether can produce mechanical wave.
4, the tooth top of the utility model groove tooth-shape does not need grinding, can reduce the manufacturing procedure of drafting lower roller, significantly enhances productivity.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a drafting lower roller structural representation of the present utility model.
Fig. 2 is one of structure for amplifying schematic diagram of the utility model drafting lower roller groove tooth-shape.
Fig. 3 be the utility model drafting lower roller groove tooth-shape the structure for amplifying schematic diagram two.
Fig. 4 be the utility model drafting lower roller groove tooth-shape the structure for amplifying schematic diagram three.
Wherein: 1-optical axis, 2-groove working face, 3-groove tooth-shape, 31-tooth top arc length, 32-curve, arc length at the bottom of the 33-tooth.
The specific embodiment
The groove tooth-shape structure of the utility model drafting lower roller is seen shown in Figure 1ly, and this drafting lower roller comprises optical axis 1, is disposed on groove working face 2 and guide hole between the optical axis 1, and the groove tooth-shape 3 on this groove working face 2 can be helical teeth profile of tooth or straight-tooth profile of tooth.This groove tooth-shape 3 as shown in Figure 2, the tooth top arc length 31 that its outline is made of the roller cylindrical, the curve 32 that is connected with tooth top arc length 31 two ends smooth transition and constitute with arc length 33 at the bottom of the tangent tooth of this curve 32, this curve 32 is the transition arc length with tooth top arc length 31 inscribes, and the radius R 1 of the radius R 2 of arc length 33 at the bottom of the tooth 〉=excessive arc length, the chord length S of this tooth top arc length is at 0.1mm～0.5mm, the radius R 1 of transition arc length is at 0.25mm～0.4mm, the radius R 2 of arc length 33 is at 20.25mm～0.5mm at the bottom of the tooth, and the degree of depth h at the bottom of tooth top arc length peak and the tooth between the arc length minimum point is at 0.3mm～0.45mm.
The groove tooth-shape 3 of drafting lower roller of the present utility model, also can be as shown in Figure 3, this curve 32 is by top arc length, bottom arc length and tangently be connected two transition wire L1 between the arc length and constitute, tooth top arc length 31 and top arc length inscribe, arc length 33 is circumscribed with the bottom arc length at the bottom of the tooth, and the radius R 4 of the radius R 3 of top arc length and bottom arc length is all less than the radius R 2 of arc length at the bottom of the tooth 33.
The groove tooth-shape 3 of drafting lower roller of the present utility model, also can be as shown in Figure 4, this curve 32 is made of top arc length and the transition wire L2 tangent with it, top arc length and tooth top arc length 31 inscribes, arc length 33 is tangent at the bottom of transition wire L2 and the tooth, and the radius R 5 of top arc length is less than the radius R 2 of arc length at the bottom of the tooth 33.
The utility model drafting lower roller can not only increase the contact area of roller and roller groove working face, improve the yarn grasping force, and the variation of the grasping force of groove working face and roller is comparatively even, and spinning quality is greatly improved.
Claims (6)
1, a kind of groove tooth-shape structure of drafting lower roller, it is characterized in that: to be that roll extrusion is rolling form described groove tooth-shape, the tooth top arc length that the cross section outline of groove tooth-shape is made of the roller cylindrical, the curve that is connected with tooth top arc length smooth transition and constitute with arc length at the bottom of the tooth of this contact of a curve.
2, the groove tooth-shape structure of drafting lower roller according to claim 1 is characterized in that: described curve is and the transition arc length of tooth top arc length inscribe, and arc length and transition arc length are circumscribed at the bottom of the tooth, and the radius R 1 of radius R 2 〉=transition arc length of arc length at the bottom of the tooth.
3, the groove tooth-shape structure of drafting lower roller according to claim 1, it is characterized in that: described curve is by top arc length, bottom arc length and tangently is connected two transition wires between the arc length and constitutes, tooth top arc length and top arc length inscribe, arc length and bottom arc length are circumscribed at the bottom of the tooth.
4, the groove tooth-shape structure of drafting lower roller according to claim 1 is characterized in that: described curve is made of top arc length and the transition wire tangent with it, top arc length and tooth top arc length inscribe, and arc length is tangent at the bottom of transition wire and the tooth.
5, according to the groove tooth-shape structure of the described drafting lower roller of one of claim 1 to 4, it is characterized in that: the chord length S of described tooth top arc length is at 0.1mm～0.5mm.
6, according to the groove tooth-shape structure of the described drafting lower roller of one of claim 1 to 4, it is characterized in that: the degree of depth h at the bottom of described tooth top arc length peak and the tooth between the arc length minimum point is at 0.3mm～0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720041893XU CN201128794Y (en) | 2007-11-28 | 2007-11-28 | Drafting lower roller grooved serrated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720041893XU CN201128794Y (en) | 2007-11-28 | 2007-11-28 | Drafting lower roller grooved serrated structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201128794Y true CN201128794Y (en) | 2008-10-08 |
Family
ID=40016632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720041893XU Expired - Lifetime CN201128794Y (en) | 2007-11-28 | 2007-11-28 | Drafting lower roller grooved serrated structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201128794Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776714A (en) * | 2012-07-11 | 2012-11-14 | 常熟市飞龙无纺机械有限公司 | Cotton feeding roller structure for automotive upholstery pre-shaping machine adopting air filling method |
| CN103469386A (en) * | 2013-09-13 | 2013-12-25 | 常熟市建华织造有限责任公司 | Preparation method of practical traction bottom roll |
| CN110306266A (en) * | 2019-07-08 | 2019-10-08 | 倪新贺 | A kind of modified textile roller |
-
2007
- 2007-11-28 CN CNU200720041893XU patent/CN201128794Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776714A (en) * | 2012-07-11 | 2012-11-14 | 常熟市飞龙无纺机械有限公司 | Cotton feeding roller structure for automotive upholstery pre-shaping machine adopting air filling method |
| CN102776714B (en) * | 2012-07-11 | 2014-12-03 | 常熟市飞龙无纺机械有限公司 | Cotton feeding roller structure for automotive upholstery pre-shaping machine adopting air filling method |
| CN103469386A (en) * | 2013-09-13 | 2013-12-25 | 常熟市建华织造有限责任公司 | Preparation method of practical traction bottom roll |
| CN110306266A (en) * | 2019-07-08 | 2019-10-08 | 倪新贺 | A kind of modified textile roller |
| CN110306266B (en) * | 2019-07-08 | 2020-07-21 | 山东天虹纺织有限公司 | Improved generation weaving roller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201128794Y (en) | Drafting lower roller grooved serrated structure | |
| CN101307515A (en) | High power drafting device for ring spinning frame | |
| CN101168872A (en) | Groove tooth-shape structure for drafting lower roller | |
| CN1948574B (en) | High power drawing device of ring throstle | |
| CN202401336U (en) | Heat setting mechanism for rope | |
| CN101532194A (en) | Drawing component for a flax wet spinning frame | |
| CN101418483B (en) | Drawing detwister in back area for spinning frame | |
| CN108977946B (en) | Uniform drafting method for large drafting of rear area of spinning frame | |
| CN201220987Y (en) | High drafting device for ring spinning frame | |
| CN106757574A (en) | A kind of spinning, drawing device with effect of gathering | |
| CN101805947A (en) | Spinning machine drafting component capable of improving yarn quality | |
| CN103806145A (en) | Large holding force leather roller and long holding distance spinning device and method thereof | |
| CN201567403U (en) | INA V type draft back zone pressure roll device of ring spinning frame | |
| CN2820891Y (en) | Four apron large drafting system for spinning machine | |
| CN2493627Y (en) | Fibre condensing guide for double-apron fibre-strand of herringbone gear | |
| CN111979616A (en) | Roller mechanism and stretch breaker for low stretch fiber stretch breaking and drafting | |
| CN201080517Y (en) | Ring spinning frame four-roller drafting mechanism | |
| CN2832844Y (en) | Drafting device of drawing frame | |
| CN201128791Y (en) | Drafting device with middle and back rollers | |
| CN212611068U (en) | Roller mechanism for low-extension fiber stretch cutting and drafting and stretch cutting machine | |
| CN203768536U (en) | Spinning device with high gripping force belt rollers and long gripping distance | |
| CN201381403Y (en) | Collector press bar distance clip | |
| CN111020759B (en) | Method and device for controlling friction force boundary of fiber strands in main drafting zone of ring spinning drafting mechanism | |
| CN216426346U (en) | Yarn guide part of textile machinery | |
| CN216471496U (en) | Curved surface guide roller for improving uniform distribution of carbon fiber tows |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |