CN103122512A - Leather collar lower pin for spun yarn drafting - Google Patents
Leather collar lower pin for spun yarn drafting Download PDFInfo
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- CN103122512A CN103122512A CN2012105403226A CN201210540322A CN103122512A CN 103122512 A CN103122512 A CN 103122512A CN 2012105403226 A CN2012105403226 A CN 2012105403226A CN 201210540322 A CN201210540322 A CN 201210540322A CN 103122512 A CN103122512 A CN 103122512A
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- line portion
- straight line
- straight
- curved
- lower pin
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Abstract
The invention discloses a leather collar lower pin for spun yarn drafting, and particularly relates to a leather collar lower pin of a drafting mechanism in a spinning frame. The leather collar lower pin for spun yarn drafting is formed by a T-shaped body. The upper surface of the horizontal portion of the T-shaped body is in a straight-line and curved-line combined shape, and the curved-line portion is higher than the straight-line portion. The thickness of the straight-line portion is 2.2 millimeters. The curved-line portion is formed by two sections of arcs, and the radii of the two sections of arcs respectively are 30.5 millimeters and 98.5 millimeters. The height difference between the highest point of the curved-line portion and the straight-line portion is 2.5 millimeters. The curved-line portion and the straight-line portion are provided with a transition straight line with a 45-degree inclined angle, and the transition straight line is connected with the curved-line portion and the straight-line portion through the arcs. The length of the straight-line portion is 6.1 millimeters. The front edge of the straight-line portion is formed by arcs, and the radii of the arcs respectively are 0.8 millimeter and 1.4 millimeters. The leather collar lower pin for spun yarn drafting has the advantages of enhancing control force of fiber motion, enabling quality of resultant yarn to be good, and being simple in structure, and wide in applicability.
Description
Technical field
The present invention relates to a kind of spinning-drafting technology, specifically the apron lower pin of drafter in a kind of fine spining machine.
Background technology
Control the drafter of fiber in existing cotton mill ring throstle, be comprised of drawing rollers, rubber roll, apron, upper pin and downside pin, wherein the sliver quality of apron, upper pin and downside pin counter extensioin plays an important role.The effect of downside pin is mainly to control the stable revolution of lower apron, supports simultaneously upper pin, and forms elastic nip with upper leather ring, to form the control to the main drawing area motor fiber.Downside pin is the state monopoly for marketing of one, six ingot, is fixed on roller stand, just as the T word, on the formation control power of main drawing area motor fiber, what affect yarn quality is the upper surface (working face) of its spread eagle part.This downside pin working face is the stairstepping that one section straight line (plane) is connected with one section curve (curved surface), and curved portion is higher than straight line portion.The deficiency of this downside pin is: straight line portion is long, has reduced the elastic force that supports apron, makes the insufficient strength of main drawing area middle part friction field; The uplift force of curved portion is inadequate, makes apron form sliver curve drawing passage slow, can not effectively control sliver.For above-mentioned deficiency, the patent No. is that the patent of ZL02155266.5 discloses the improved plan to this downside pin, has namely shortened straight line portion length and the difference in height that has increased curved portion and straight line portion.Although this improvement plays a positive role to the quality that improves resultant yarn, the district of swimming that also exists fiber is excessive, makes the speed change of fiber understable; The downside pin working face holds up face inadequate to the holder of lower apron, makes lower apron owe smooth and easy and shortcoming stably at the downside pin upper rotary.
Summary of the invention
The purpose of this invention is to provide a kind of apron lower pin for spinning-drafting, excessive with the district of swimming that solves the fiber that prior art exists, make the speed change of fiber understable; The downside pin working face holds up face inadequate to the holder of lower apron, makes lower apron owe smooth and easy and problem stably at the downside pin upper rotary.
for achieving the above object, the technical scheme that the present invention takes is: consist of just as T word shape body by one, upper surface in T word spread eagle part is the combined shaped that straight line (plane) is connected with curve (curved surface), curved portion is higher than straight line portion, straight line portion thickness is 2.2mm, it is characterized in that curved portion is respectively 30.5mm by two sections radiuses, 98.5mm circular arc consists of, the difference in height of curved portion peak and straight line portion is 2.5mm, the circular arc that is 4mm by radius between the little circular arc of curved portion radius connects, the circular arc that is 0.8mm by radius between transition straight line and straight line portion is connected, straight line portion length is 6.1mm.
The leading edge of above-mentioned straight line portion is made of the circular arc that radius is respectively 0.8mm and 1.4mm, and the circular arc of radius R 6-0.8mm is positioned at top.
The present invention is due to the shape and size of original apron lower pin T word spread eagle upper surface (being working face) have partly been done improvement, be that curved portion is made of two sections circular arcs, increased the length that face is held up in the holder on the working face, and then strengthened control to fiber movement, make fiber movement evenly, stable; Leading edge due to straight line portion is made of two circular arcs again, has shortened free zone length, make the speed change of fiber more stable, and then the motor fiber in counter extensioin has stronger control.The results showed, lower apron is smooth and easy, stable at the downside pin upper rotary, relaxation is appropriate, in the situation that other condition is constant, uses fine spining machine of the present invention can obviously improve evenness quality, reduces the CV value.In addition, the present invention does not affect other parts of drafter owing to only the shape and size of T word spread eagle working face partly having been done improvement, therefore use the fine spining machine of the type apron lower pins applicable to all.
Description of drawings
Fig. 1 is the planform schematic diagram of original apron lower pin;
Fig. 2 is planform schematic diagram of the present invention.
The specific embodiment
By shown in Figure 1, original apron lower pin consists of just as T word shape body by one, is the combined shaped that straight line (plane) is connected with curve (curved surface) at T word spread eagle upper surface partly.The length L of T word spread eagle part
1=24mm, curved portion is higher than straight line portion, the straight line portion length L
2=7.5mm, thickness B
1=3mm.The curved portion peak is to the height difference H of straight line portion
1=1.5mm, the straight line portion leading edge is R
1=1.5 circular arc passes through inclination alpha between curve and straight line
2Be the transition straight line of 45 degree, transition straight line and curved portion R
2Circular arc between pass through radius R
4The circular arc of=4mm is connected, and passes through radius R between transition straight line and straight line portion
5The circular arc of=0.8mm is connected, the straight line portion length L
4=6.1mm.The leading edge of straight line portion is by radius R
6=0.8mm and R
7The circular arc of=1.4mm consists of.
The present invention has made contrast test with original apron lower pin under the following conditions:
Tester: the dried measuring and analysing meter of YG136A bar 1.0 editions
Test material title: JC32
SType: cotton type range arranges: 100%
Scale: 0.5m/div speed: 400 m/mins of times: 1 part 0 second
The fine spining machine model: FA507A type contrast test is as follows:
The test data of original downside pin:
Test data of the present invention:
This shows, this apron lower pin is on the basis of original apron lower pin, the size of its working face and the shape of curve are improved, to increase the downside pin working face, face is held up in the holder of lower apron, the fibrillose district of swimming of further contracting, make its counter extensioin sliver have better control, with the quality of further raising resultant yarn.
Claims (2)
1. an apron lower pin that is used for spinning-drafting, consist of just as T word shape body by one, is the combined shaped that straight line portion is connected with curved portion at the upper surface of T word spread eagle part, and this curved portion is higher than straight line portion, the thickness B of straight line portion
2=2.2mm is characterized in that: described curved portion is by two sections radiuses difference R
2=30.5mm and R
3=98.5mm circular arc consists of, the peak of this curved portion and the height difference H of straight line portion
2=2.5mm, radius are R
2Circular arc and the straight line portion of curved portion one inclination alpha is arranged
2The transition straight line of=45 degree, this transition straight line and radius are R
2The circular arc of curved portion between pass through radius R
4The circular arc of=4mm is connected; Pass through radius R between described transition straight line and straight line portion
5The circular arc of=0.8mm is connected, the length L of described straight line portion
4=6.1mm.
2. according to the apron lower pin for spinning-drafting claimed in claim 1, it is characterized in that: the leading edge of described straight line portion is by radius R
6=0.8mm and R
7The circular arc of=1.4mm consists of, radius R
60.8mm circular arc be positioned at top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540322.6A CN103122512B (en) | 2012-12-14 | 2012-12-14 | Apron lower pin for spun yarn drafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540322.6A CN103122512B (en) | 2012-12-14 | 2012-12-14 | Apron lower pin for spun yarn drafting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103122512A true CN103122512A (en) | 2013-05-29 |
| CN103122512B CN103122512B (en) | 2016-12-21 |
Family
ID=48453643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210540322.6A Active CN103122512B (en) | 2012-12-14 | 2012-12-14 | Apron lower pin for spun yarn drafting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103122512B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904545A (en) * | 2019-10-01 | 2020-03-24 | 嘉兴学院 | Ring spinning grid ring yarn guiding mechanism and spinning frame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001226838A (en) * | 2000-02-09 | 2001-08-21 | Yoji Kitamura | Cradle and cradle device |
| CN2771233Y (en) * | 2005-01-24 | 2006-04-12 | 黑龙江省肇东纺织机械厂 | Rubber ring lower pin |
| CN101358392A (en) * | 2008-07-20 | 2009-02-04 | 何银康 | Apron lower pin for spinning frame |
| CN201704458U (en) * | 2010-06-13 | 2011-01-12 | 汤永学 | Apron bottom cradle |
| CN102071501A (en) * | 2010-12-29 | 2011-05-25 | 孟振康 | Front zone drafting small-space odd-shaped cross section lower pin for ring spinning frame |
-
2012
- 2012-12-14 CN CN201210540322.6A patent/CN103122512B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001226838A (en) * | 2000-02-09 | 2001-08-21 | Yoji Kitamura | Cradle and cradle device |
| CN2771233Y (en) * | 2005-01-24 | 2006-04-12 | 黑龙江省肇东纺织机械厂 | Rubber ring lower pin |
| CN101358392A (en) * | 2008-07-20 | 2009-02-04 | 何银康 | Apron lower pin for spinning frame |
| CN201704458U (en) * | 2010-06-13 | 2011-01-12 | 汤永学 | Apron bottom cradle |
| CN102071501A (en) * | 2010-12-29 | 2011-05-25 | 孟振康 | Front zone drafting small-space odd-shaped cross section lower pin for ring spinning frame |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904545A (en) * | 2019-10-01 | 2020-03-24 | 嘉兴学院 | Ring spinning grid ring yarn guiding mechanism and spinning frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103122512B (en) | 2016-12-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266102, No. 160, Laoshan Road, Shazikou street, Laoshan District, Shandong, Qingdao Patentee after: Qingdao Swan new material Weaving Co., Ltd. Address before: 266102, No. 160, Laoshan Road, Shazikou street, Laoshan District, Shandong, Qingdao Patentee before: Qingdao Swan Knitting Co., Ltd. |