CN2606749Y - Bottom apron bridge - Google Patents
Bottom apron bridge Download PDFInfo
- Publication number
- CN2606749Y CN2606749Y CN 03244900 CN03244900U CN2606749Y CN 2606749 Y CN2606749 Y CN 2606749Y CN 03244900 CN03244900 CN 03244900 CN 03244900 U CN03244900 U CN 03244900U CN 2606749 Y CN2606749 Y CN 2606749Y
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- Prior art keywords
- straight line
- line portion
- millimeters
- length
- millimeter
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- Expired - Lifetime
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Abstract
A bottom apron bridge of drawing mechanism of spinning frame is provided, wherein any section of the bottom apron bridge has the same shape, which is essentially a T shape, and the upper surface of the transverse part of the T shape is a combined shape by a straight line connecting a curve, the curve part is higher than the straight line part, so height difference is provided, the straight line part has a certain thickness. The utility model is characterized in that the length of the straight line is 4-7.4mm, the length of the curve part connecting with the straight line part is 20-16.6mm correspondingly, the distance from the highest point to the from rim of the straight line part is 9-12mm, the distance from the highest point to the tail end of the bottom apron bridge is 15-12mm correspondingly, the thickness of the straight line part is 1-2.7mm, the height difference of the curve part and the straight line part is 3.6-1.9mm correspondingly. The bottom apron bridge has better control force for drawing yarn, and the yarn quality is obviously improved.
Description
Technical field
The utility model relates to weaving spinning-drafting technology, is specially the used apron lower pin of fine spining machine drafter, and international monopoly Main classification number plan is Int.C1
7.DOIH5/88.
Background technology
The drafter of present cotton mill ring throstle, the general two aprons of length, spring rocking pin, Spring cradle pressurization or the Pneuamtic cradle pressue device of adopting, pin and the acting in conjunction of curved surface ladder downside pin come controlling fiber on main dependence drawing rollers, rubber roll, apron, the elasticity, realize drawing-off.The motion of additional friction power bound pair controlling fiber guaranteed that the quality of drawing-off sliver has decisive role, especially the preceding jaw that pin and curved surface ladder downside pin are formed on apron, the elasticity in the middle of the mechanism that pin and curved surface ladder downside pin are formed on apron, the elasticity was formed.Curved surface ladder downside pin mainly is to support apron and the guiding stable revolution of apron down down, supports that simultaneously going up pin makes it to be in the technological requirement position.Downside pin is the state monopoly for marketing of one on six ingots, is fixed on the roller stand.Why being called curved surface ladder downside pin is because its arbitrary cross-section is the curved surface stairstepping, the upper surface that is the downside pin arbitrary cross-section is the combined shaped that one section straight line links to each other with one section curve, curved portion is higher than straight line portion, has difference in height, form stepped, straight line portion and curved portion all have certain thickness, constitute described curved surface stairstepping.This design helps the tensioning apron, and additional friction power circle in the middle of strengthening improves the control degree to fiber, thereby is widely adopted.But further study and experiment shows, the downside pin of this kind shape counter extensioin sliver fiber well carries out strong control, exists the place that haves much room for improvement.Its design defect is: the straight line of downside pin (plane) partial-length is longer, make its elastic acting force that supports apron a little less than, weakened the intensity of main drawing area middle part friction field, enough not by force to the control of sliver; The uplift force of the peak of downside pin curved portion is also not enough, and the sliver curve drawing passage that apron is formed relatively relaxes, and can not control sliver effectively, is unfavorable for the high-quality of resultant yarn.
The utility model content
At the deficiencies in the prior art, the technical problems to be solved in the utility model is a kind of improved apron lower pin of design, and its counter extensioin sliver has better control, and yarn quality obviously improves, and simple in structure, wide adaptability.
The technical scheme that the utility model solve the technical problem is: design a kind of apron lower pin, its arbitrary cross-section shape is identical, basic is the T font, and the upper surface of T font spread eagle part is the combined shaped that one section straight line links to each other with one section curve, curved portion is higher than straight line portion, have difference in height, straight line portion has certain thickness, and the length that it is characterized in that described one section straight line portion is the 4.0-7.4 millimeter; The length of the curved portion that links to each other with straight line portion is correspondingly for the 20.0-16.6 millimeter, and its peak is the 9.0-12.0 millimeter apart from the leading edge distance of straight line portion; Peak correspondingly is the 15.0-12.0 millimeter apart from the distance C 1 of apron lower pin tail end; The thickness of straight line portion is the 1.0-2.7 millimeter, and the difference in height of curved portion and straight line portion correspondingly is the 3.6-1.9 millimeter.
The utility model is primarily aimed at the upper surface shape of apron lower pin and has done to improve design: at different raw cotton, position reach certain distance with downside pin working face peak, increase the length of curve (curved surface) part, correspondingly dwindle the length on downside pin straight line portion (plane), so that strengthen near the friction field at apron nip place; Increase the difference in height of downside pin curved portion and straight line portion simultaneously, to strengthen the upward pressure of downside pin, further tensioning apron, enhancement curve drawing-off effect to apron.The control to fiber has been strengthened up and down between the apron in downside pin of the present utility model design, make the distribution of draw zone internal friction circle more reasonable, dwindled the length in the district of swimming, make fiber speed change point distribution reach in the main drawing area, further jaw is concentrated forward, and makes the speed change of fiber more stable.To a large number of experiments show that (referring to the embodiment) of different cultivars, under the constant situation of other conditions, use the fine spining machine of the utility model downside pin can obviously improve evenness quality, the sliver even thickness, slubbing, details obviously reduce, the reduction of CV value.The utility model is owing to improve design on existing downside pin basis, the distribution of lengths of peak position, plane and curvature portion of downside pin working face and the difference in height between them have only been redesigned, other parts are not done change, therefore its structure is still simple, handling ease, easy for installation, for all use the ring spun yarn type of curved surface ladder downside pin to be suitable for now, need not any change is partly done in the drawing-off of fine spining machine, so favorable applicability and economy are arranged.
Description of drawings
Fig. 1 is the prior art apron lower pin planform schematic diagram corresponding with the utility model;
The new apron lower pin planform schematic diagram that Fig. 2 designs for the utility model.
The specific embodiment
A kind of apron lower pin of the utility model design is the improvement design of carrying out on existing apron lower pin basis (referring to Fig. 1,2).Its arbitrary cross-section shape is identical, basic be the T font, and T font spread eagle upper surface partly is the combined shaped that one section straight line (plane) B links to each other with one section curve (curved surface), and curved portion is higher than straight line portion B, both differences in height are H, and the thickness of straight line portion B is I.Specifically, the planform size of prior art apron lower pin is: the curved portion peak is 12.2 millimeters apart from the distance A 0 of straight line portion leading edge; The length of straight line portion B0 is 7.5 millimeters; The curved portion peak is 11.8 millimeters apart from the distance C 0 of apron lower pin tail end; The height difference H 0 of curved portion and straight line portion B0 is 1.6 millimeters; The thickness I0 of straight line portion B0 is 3 millimeters.
The planform size (referring to Fig. 2) of apron lower pin described in the utility model is: the curved portion peak is the 9.0-12.0 millimeter apart from the distance A 1 of straight line portion leading edge; The curved portion peak is the 15.0-12.0 millimeter apart from the distance C 1 of apron lower pin tail end; The length of straight line portion B1 is the 4.0-7.4 millimeter; The curved portion length that links to each other with straight line portion correspondingly is the 20.0-16.6 millimeter, and the thickness I1 of straight line portion B0 is the 1.0-2.7 millimeter, and the height difference H 1 of curved portion and straight line portion B1 correspondingly is the 3.6-1.9 millimeter.Be compared with the prior art, the total length of straight line portion described in the utility model and curved portion sum is constant, but straight line portion B1 length is dwindled the 0.1-3.5 millimeter than former length, and the curved portion that links to each other with straight line portion B1 correspondingly prolongs the 0.1-3.5 millimeter; And peak reduces the 3-0.1 millimeter apart from the distance A 1 of straight line portion leading edge than former distance, and the curved portion peak should increase the 3-0.1 millimeter apart from the distance C 1 of apron lower pin tail end than former appearance, promptly high some reach 3-0.1 millimeter; And the height difference H 1 of curved portion and straight line portion increases the 0.1-2.0 millimeter than former difference in height; The thickness I1 of straight line portion correspondingly reduces the 0.1-2.0 millimeter than original thickness.Under the situation that so-called thickness I1 that correspondingly just is meant straight line portion and height difference H 1 sum and original thickness I0 and height difference H 0 sum remain unchanged, thickness I1 and height difference H 1 itself are made corresponding increase and decrease.All the other geomeries do not change.
The utility model apron lower pin can be selected in described excursion according to the difference of raw material, but under the identical situation of project organization shape, also is not precluded within described excursion and selects outward.Experiment shows that the apron lower pin of following geomery has the good versatility energy: the length of described straight line portion B1 is 6.5 millimeters; The length of the curved portion that links to each other with straight line portion B1 is 17.5 millimeters accordingly, and its peak is 10.2 millimeters apart from the distance A 1 of straight line portion leading edge; Peak correspondingly is 13.8 millimeters apart from the distance C 1 of apron lower pin tail end; The thickness I1 of straight line portion is 2.0 millimeters, and the height difference H 1 of curved portion and straight line portion is 2.6 millimeters.
The utility model is owing to just done to optimize the improvement design to the geomery of apron lower pin upper surface, therefore the utility model is applicable to the fine spining machine that all use the type apron lower pin, also promptly when using the utility model apron lower pin, the fine spining machine of various models and their drafter comprise that without any obstacle apron, cradle etc. do not need to do any change.
Provide specific embodiment (experiment is at same rove, with ingot number, same technology, carries out under the same temperature damp condition, and data are the averages of a large amount of tests) below.They have reflected good effect of the present utility model:
Embodiment 1
Experiment type: A512V, the pneumatic pressurization of DVX; 40 yarns of spinning combed cotton; Use the physical dimension of apron lower pin to be: straight line portion B1 length is 6.5 millimeters; The length of the curved portion that links to each other with straight line portion B1 is 17.5 millimeters, and its peak is 10.2 millimeters apart from the distance A 1 of straight line portion leading edge, and peak is 13.8 millimeters apart from the distance C 1 of apron lower pin tail end; The thickness I1 of straight line portion is 2 millimeters, and the height difference H 1 of curved portion and straight line portion is 2.6 millimeters.Experimental result is referring to table 1:
(table 1)
Embodiment 2
| Index (%) | Bar is done CV | Details-50 | Details-40 | Details-30 | Slubbing+100 | Slubbing+70 | Slubbing+50 | Slubbing+35 | Cotton knot+280 | Cotton knot+200 |
| Former pin | 13.05 | 4 | 130 | 1355 | 0 | 2 | 25.33 | 273 | 13.33 | 42.33 |
| New pin | 12.36 | 1.36 | 64.82 | 978.7 | 0.514 | 2.15 | 15.69 | 176.45 | 12.09 | 38.98 |
Experiment type: FA506, the pneumatic pressurization of DVX; Spin 45 combed cottons/wash, 55/45 yarn; Use the apron lower pin physical dimension to be: straight line portion B1 length is 4.0 millimeters; The length of the curved portion that links to each other with straight line portion B1 is 20.0 millimeters, and its peak is 9 millimeters apart from the distance A 1 of straight line portion leading edge, and peak is 15.0 millimeters apart from the distance C 1 of apron lower pin tail end; The thickness I1 of straight line portion is 1.0 millimeters, and the height difference H 1 of curved portion and straight line portion is 3.6 millimeters.Experimental result sees Table 2:
(table 2)
Embodiment 3
| Index (%) | Bar is done CV | Details-50 | Details-40 | Details-30 | Slubbing+100 | Slubbing+70 | Slubbing+50 | Slubbing+35 | Cotton knot+280 | Cotton knot+200 |
| Former pin | 13.2 | 4.14 | 118.7 | 1327 | 1.9 | 5.43 | 31.1 | 277 | 16.86 | 45.9 |
| New pin | 12.81 | 2.2 | 89.2 | 1139 | 1.86 | 5 | 25.2 | 230 | 15 | 43.2 |
The experiment type is with embodiment 1; 60,/40 45 yarn of spinning combed cotton/wash; Use the physical dimension of apron lower pin to be: straight line portion B1 length is 7.4 millimeters; The length of the curved portion that links to each other with straight line portion B1 is 16.6 millimeters, and its peak is 12.0 millimeters apart from the distance A 1 of straight line portion leading edge, and peak is 12.0 millimeters apart from the distance C 1 of apron lower pin tail end; The thickness I1 of straight line portion is 2.7 millimeters, and the height difference H 1 of curved portion and straight line portion is 1.9 millimeters.Experimental result is referring to table 3:
(table 3)
Embodiment 4
| Index (%) | Bar is done CV | Details-50 | Details-40 | Details-30 | Slubbing+100 | Slubbing+70 | Slubbing+50 | Slubbing+35 | Cotton knot+280 | Cotton knot+200 |
| Former pin | 13.45 | 5.3 | 141.8 | 1514 | 3 | 7 | 38 | 332 | 18.6 | 50.8 |
| New pin | 12.89 | 4.3 | 102.7 | 1213 | 1 | 4.7 | 28.6 | 242.3 | 15.3 | 44.3 |
The experiment type is with embodiment 1; 60,/40 32 yarn of spinning combed cotton/wash; Use the physical dimension of apron lower pin to be: straight line portion B1 length is 6.0 millimeters; The length of the curved portion that links to each other with straight line portion B1 is 18 millimeters, and its peak is 10 millimeters apart from the distance A 1 of straight line portion leading edge, and peak is 14 millimeters apart from the distance C 1 of apron lower pin tail end; The thickness I1 of straight line portion is 2.3 millimeters, and the height difference H 1 of curved portion and straight line portion is 2.3 millimeters.Experimental result is referring to table 4:
(table 4)
Embodiment 5
| Index (%) | Bar is done CV | Details-50 | Details-40 | Details-30 | Slubbing+100 | Slubbing+70 | Slubbing+50 | Slubbing+35 | Cotton knot+280 | Cotton knot+200 |
| Former pin | 12.19 | 0.67 | 59.67 | 900 | 1.33 | 3.67 | 15.33 | 155 | 10.3 | 30 |
| New pin | 11.91 | 0.5 | 41 | 763.8 | 0.5 | 3 | 9 | 131 | 7.4 | 25.4 |
The experiment type is with embodiment 2; Textile 40 yarns of spinning; Use the physical dimension of apron lower pin to be: the B16.6 millimeter; Curved portion length is 17.4 millimeters, and A1 is 10.5 millimeters, and C1 is 13.5 millimeters; Straight line portion thickness I1 is 1.8 millimeters, and height difference H 1 straight, curved portion is 2.8 millimeters.Experimental result is referring to table 5:
(table 5)
| Index (%) | Bar is done CV | Details-50 | Details-40 | Details-30 | Slubbing+100 | Slubbing+70 | Slubbing+50 | Slubbing+35 | Cotton knot+280 | Cotton knot+200 |
| Former pin | 15.53 | 31 | 413 | 2825 | 3.5 | 29 | 225.5 | 1078 | 95 | 279 |
| New pin | 14.54 | 12 | 252 | 2137 | 3 | 14 | 122 | 734.5 | 65 | 198 |
Claims (2)
1. apron lower pin, its arbitrary cross-section shape is identical, basic is the T font, and the upper surface of T font spread eagle part is the combined shaped that one section straight line links to each other with one section curve, curved portion is higher than straight line portion, have difference in height, straight line portion has certain thickness, and the length that it is characterized in that described one section straight line portion is the 4.0-7.4 millimeter; The length of the curved portion that links to each other with straight line portion is correspondingly for the 20.0-16.6 millimeter, and its peak is the 9.0-12.0 millimeter apart from the distance of straight line portion leading edge, and peak correspondingly is the 15.0-12.0 millimeter apart from the distance C 1 of apron lower pin tail end; The thickness of straight line portion is the 1.0-2.7 millimeter, and the difference in height of curved portion and straight line portion correspondingly is the 3.6-1.9 millimeter.
2. apron lower pin according to claim 1, the length that it is characterized in that described straight line portion is 6.5 millimeters; The length of the curved portion that links to each other with straight line portion is 17.5 millimeters accordingly, and its peak is 10.2 millimeters apart from the distance of straight line portion leading edge, and peak correspondingly is 13.8 millimeters apart from the distance C 1 of apron lower pin tail end; The thickness of straight line portion is 2.0 millimeters, and the difference in height of curved portion and straight line portion is 2.6 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244900 CN2606749Y (en) | 2003-04-09 | 2003-04-09 | Bottom apron bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03244900 CN2606749Y (en) | 2003-04-09 | 2003-04-09 | Bottom apron bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606749Y true CN2606749Y (en) | 2004-03-17 |
Family
ID=34169313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03244900 Expired - Lifetime CN2606749Y (en) | 2003-04-09 | 2003-04-09 | Bottom apron bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606749Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798715A (en) * | 2010-03-17 | 2010-08-11 | 江苏鹿港科技股份有限公司 | Positioning device for lower leather ring pin in spinning machine |
-
2003
- 2003-04-09 CN CN 03244900 patent/CN2606749Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798715A (en) * | 2010-03-17 | 2010-08-11 | 江苏鹿港科技股份有限公司 | Positioning device for lower leather ring pin in spinning machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEILONGJIANG ZHAODONG WEAVING MACHINERY FACTORY Free format text: FORMER OWNER: TIANJIN TIANGE TEXTILE CO., LTD. Effective date: 20050401 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050401 Address after: 151100 Zhaodong province Heilongjiang City Siming Road No. 174 Patentee after: Zhaodong Textile Machinery Plant, Heilongjiang Prov. Address before: 301721 Wuqing District, Tianjin Patentee before: Tianjin Tiange Textile Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130409 Granted publication date: 20040317 |