CN103122512B - Apron lower pin for spun yarn drafting - Google Patents
Apron lower pin for spun yarn drafting Download PDFInfo
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- CN103122512B CN103122512B CN201210540322.6A CN201210540322A CN103122512B CN 103122512 B CN103122512 B CN 103122512B CN 201210540322 A CN201210540322 A CN 201210540322A CN 103122512 B CN103122512 B CN 103122512B
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- straight line
- line portion
- circular arc
- curved portion
- straight
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Abstract
The invention discloses the apron lower pin of drafter in a kind of apron lower pin for spun yarn drafting, specifically spinning frame.It is constituted just as T-shaped body by one, the combination shape that upper surface is straight line and curve at T word spread eagle, curved portion is higher than straight line portion, straight line portion thickness is 2.2mm, curved portion is that 30.5mm, 98.5mm circular arc is constituted by two sections of radiuses, and curved portion peak is 2.5mm with the difference in height of straight line portion, the transitional straight that curved portion and straight line portion have an inclination angle to be 45 degree, transitional straight is connected by circular arc with curved portion and straight line portion, a length of 6.1mm of straight line portion.The leading edge of straight line portion is made up of the circular arc of radius respectively 0.8mm and 1.4mm.The invention have the advantage that the control power enhancing fiber movement, make yarn quality good, and simple in construction, the suitability is wide.
Description
Technical field
The present invention relates to a kind of spun yarn drafting technology, the apron lower pin of drafter in a kind of spinning frame.
Background technology
Existing cotton mill ring throstle controls the drafter of fiber, by drawing rollers, rubber roll, apron, upper pin and
Downside pin forms, and wherein the sliver quality of apron, upper pin and downside pin counter extensioin plays an important role.The effect of downside pin mainly controls
Lower apron stably turns round, and supports upper pin simultaneously, and forms elastic nip with upper leather ring, to be formed main drawing area motor fiber
Control.Downside pin is the state monopoly for marketing of one, six ingot, is fixed on roller stand, and just as T word, the formation to main drawing area motor fiber controls
Power, affect yarn quality is the upper surface (work surface) of its spread eagle part.This downside pin work surface is that one section of straight line is (flat
Face) stairstepping that is connected with one section of curve (curved surface), curved portion is higher than straight line portion.The deficiency of this downside pin is: line part
Divide long, reduce the elastic force supporting apron, make the insufficient strength of friction field in the middle part of main drawing area；The uplift force of curved portion
Not, apron is made to form sliver curve drawing passage slow, it is impossible to effectively to control sliver.For above-mentioned deficiency, Patent No.
The patent of ZL02155266.5 discloses the improved plan to this downside pin, i.e. shortens straight line portion length and adds song
Line part and the difference in height of straight line portion.Although the quality improving resultant yarn is played a positive role by this improvement, but there is also
The district of swimming fiber is excessive, and the speed change making fiber is understable；The torr of lower apron is held up face inadequate by downside pin work surface, makes lower apron
Smooth and easy and stable shortcoming is owed at downside pin upper rotary.
Summary of the invention
It is an object of the invention to provide a kind of apron lower pin for spun yarn drafting, to solve the fiber that prior art exists
District of swimming excessive, the speed change making fiber is understable；The torr of lower apron is held up face inadequate by downside pin work surface, makes lower apron at downside pin
Upper rotary owes smooth and easy and stable problem.
For achieving the above object, the present invention adopts the technical scheme that: constituted just as T-shaped body by one, at T word spread eagle
The upper surface of part is the combined shaped that straight line (plane) is connected with curve (curved surface), and curved portion is higher than straight line portion, straight line
Segment thickness is 2.2mm, it is characterised in that curved portion is made up of two sections of radius respectively 30.5mm, 98.5mm circular arcs, curve
The difference in height of part peak and straight line portion is 2.5mm, is the circle of 4mm by radius between the circular arc that curved portion radius is little
Arc connects, and is connected by the circular arc that radius is 0.8mm between transitional straight with straight line portion, a length of 6.1mm. of straight line portion
The leading edge of above-mentioned straight line portion is made up of the circular arc of radius respectively 0.8mm and 1.4mm, the circle of radius R6-0.8mm
Arc is positioned at top.
Due to the fact that the shape and size of the upper surface (i.e. work surface) to original apron lower pin T word spread eagle part are made
Improve, i.e. curved portion is made up of two sections of circular arcs, add the torr on work surface and hold up the length in face, and then enhance fiber
The control power of motion, makes fiber movement uniform, stable；It is made up of two circular arcs due to the leading edge of straight line portion again, shortens fibre
Dimension length of floating area, the speed change making fiber is more stable, and then the motor fiber in counter extensioin has higher control power.Through examination
Testing and show, lower apron is smooth and easy at downside pin upper rotary, stable, relaxation appropriateness, in the case of other condition is constant, uses the present invention
Spinning frame can obviously improve evenness quality, reduce CV value.Additionally, due to the fact that only work surface to T word spread eagle part
Shape and size made improve, do not affect other parts of drafter, therefore be applicable under all use the type aprons
The spinning frame of pin.
Accompanying drawing explanation
Fig. 1 is the planform schematic diagram of original apron lower pin；
Fig. 2 is the planform schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, original apron lower pin is constituted just as T-shaped body by one, and the upper surface in T word spread eagle part is straight
The combined shaped that line (plane) is connected with curve (curved surface).Length L of T word spread eagle part1=24mm, curved portion is higher than straight
Line part, straight line portion length L2=7.5mm, thickness B1=3mm.Curved portion peak is to the height difference H of straight line portion1=
1.5mm, straight line portion leading edge is R1The circular arc of=1.5, passes through inclination alpha between curve and straight line2It is the transitional straight of 45 degree, mistake
Cross straight line and curved portion R2Circular arc between by radius R4The circular arc of=4mm is connected, between transitional straight and straight line portion
By radius R5The circular arc of=0.8mm is connected, straight line portion length L4=6.1mm.The leading edge of straight line portion is by radius R6=
0.8mm and R7The circular arc of=1.4mm is constituted.
The present invention has made contrast test under the following conditions with original apron lower pin:
Test instrunment: the dry measuring and analysing meter of YG136A bar 1.0 editions
Test title material: JC32SType: cotton range is arranged: 100%
Scale: 0.5m/div speed: 400 ms/min of times: 1 part 0 second
Spinning frame model: FA507A type contrast test is as follows:
The test data of original downside pin:
The test data of the present invention:
As can be seen here, this apron lower pin is on the basis of original apron lower pin, to the size of its work surface and curve
Shape improves, and the torr of lower apron is held up face increasing downside pin work surface, reduces the district of swimming of fiber further, make it to leading
Stretch sliver and there is better control power, to improve the quality of resultant yarn further.
Claims (2)
1., for an apron lower pin for spun yarn drafting, constituted just as T-shaped body by one, at the upper surface of T word spread eagle part
The combined shaped being connected with curved portion for straight line portion, this curved portion is higher than straight line portion, the thickness B of straight line portion2=
2.2mm, it is characterised in that: described curved portion is by two sections of radiuses R respectively2=30.5mm and R3=98.5mm circular arc is constituted, should
The peak of curved portion and the height difference H of straight line portion2=2.5mm, radius is R2The circular arc of curved portion and straight line portion
There is an inclination alpha2The transitional straight of=45 degree, this transitional straight and radius are R2Curved portion circular arc between by radius R4
The circular arc of=4mm is connected；By radius R between described transitional straight and straight line portion5The circular arc of=0.8mm is connected,
Length L of described straight line portion4=6.1mm.
2. according to the apron lower pin for spun yarn drafting described in claim 1, it is characterised in that: the leading edge of described straight line portion
By radius R6=0.8mm and R7The circular arc of=1.4mm is constituted, radius R6The circular arc of 0.8mm is 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 CN103122512A (en) | 2013-05-29 |
| CN103122512B true CN103122512B (en) | 2016-12-21 |
Family
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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) |
Families Citing this family (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103122512A (en) | 2013-05-29 |
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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 |
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. |
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| CP01 | Change in the name or title of a patent holder |