CN2913399Y - Three-apron curve drafting device - Google Patents
Three-apron curve drafting device Download PDFInfo
- Publication number
- CN2913399Y CN2913399Y CN 200620042445 CN200620042445U CN2913399Y CN 2913399 Y CN2913399 Y CN 2913399Y CN 200620042445 CN200620042445 CN 200620042445 CN 200620042445 U CN200620042445 U CN 200620042445U CN 2913399 Y CN2913399 Y CN 2913399Y
- Authority
- CN
- China
- Prior art keywords
- roller
- apron
- bottom roll
- fringing
- top 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 - Fee Related
Links
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 239000010985 leather Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 5
- 210000000981 epithelium Anatomy 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035611 feeding Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The utility model provides a curvilinear drafting device with three leather rings, which comprises three or four bottom rollers, top rollers capable of forming a gripping jaw opening together with the corresponding bottom rollers, and a pressurized structure thereof, wherein the center of the bottom roller substantially locates at the connecting line of upper surface of the front and middle roller, and the rear top roller is backwardly shifted with respect to the rear bottom roller. The utility model is characterized in that the rear top roller is sheathed with a rear leather ring, a tension press roller is disposed at the front part of the rear leather ring, and the rear top roller and the tension press roller are disposed on a tension press roller bracket. By adopting the above technical proposal, a fringing, a circular arc curve controlled by the rear leather ring, and a curve formed by contacting and pressing the fringing by the lower end of the tension press roller are formed between the rear roller jaw opening and the lower end of the tension press roller, the fringing is surrounded the surface of the rear bottom roller, the control of the fringing extents to the lower end of the tension press roller, so that the floating region at the rear draft zone can be reasonably adjusted under the conditions required by the process, the shift point of the fringing is relatively centralized and forwardly shifted, thereby improvin.
Description
Affiliated technical field
The utility model relates to the spinning equipment in the textile industry, is the first break draft plot structure of three or drafting device with four rollers, particularly roller draft on cotton spinning, billy or the fine spining machine.
Background technology
The main task of roller drafting device is the drawing-off ability that improves under the situation that guarantees the drawing-off quality, so drawing-off ability and drawing-off quality are to weigh two big key elements of roller drafting device quality.Be located substantially in straight line (plane) roller drafting device in the plane at the roller center line,, brought restriction under the situation that guarantees the drawing-off quality, improving the total draft ability because the drawing-off of back zone straight line drawing-off form is limited in one's ability.
In the prior art, with cotton spinning frame three roller drafting devices is example, in order under the situation that guarantees the drawing-off quality, to improve the total draft ability, existing back zone straight line drawing-off is set to the technical scheme of curve drawing form, increase the back zone curve drawing structure of control element etc. as rear roller top, Chinese patent application number be 87207310 and the patent application of 98225203.x proposed respectively to move behind the back top roller of straight line (plane) three roller draft structures, the back zone increases the back zone curve drawing version of pressure bar or control roll, because these pressure bars or control roll abut against on the bottom roll of back, the control point of yarn is positioned at the rear portion in first break draft district, the length of floating area in first break draft district is still long and be unfavorable for control to staple fibre, for the lifting of drawing-off ability and drawing-off quality has brought restriction.
V-arrangement (INA) drawing-off structure is lifted to the rear roller center on the extension line that is positioned at plane line on the preceding middle roller, about pendulum 65 is spent behind the back roller, what be provided with yarn and rear roller grip hold arc partly grips the curve controlled district, changes the straight line drawing-off passage of back zone into the curve drawing passage.Have and twist with the fingers the curved curvilinear motion of the synchronous holding of single face that yarn is subjected to the rear roller surface, slow speed fiber has stronger control action to free-fiber, makes the reach relatively of speed change point.The deficiency of V-arrangement drawing-off structure is that the rear portion in first break draft district more lacks friction field control by back bottom roll single face holding control deficiency, front area, and to fiber speed change point reach DeGrain, the first break draft capability improving is less.
Another Chinese patent application number is that 96107383.7 patent application has proposed to increase the upper leather collar pin assembly, increase the drawing-off structure that lower pin bar forms three roller three-aprons between middle rear roller at the back top roller of straight line (plane) three roller draft structures, it can effectively increase the back area draft ability in back zone affix downside pin and the control of single upper leather ring.But the epithelium posterius circle is with the back downside pin and adds the sliding friction of depressing, and the driving load of back bottom roll is bigger.The yarn of back belt promotion simultaneously moves between back belt and back lower pin bar, and yarn is produced certain rubbing, and is unfavorable to the motion of front end fiber.
Summary of the invention
The purpose of this utility model provide a kind of on V-arrangement drawing-off basis the first break draft district be set to have the technical scheme of epithelium posterius circle curve drawing structure, can make yarn between epithelium posterius circle and back bottom roll, be subjected to good control, thereby under the situation that guarantees the drawing-off quality, improve the back area draft ability.
The technical solution of the utility model is:
A kind of three-apron curve drawing device, comprise three or four bottom rolls, form top roller and the pressing mechanism thereof that grips jaw with corresponding bottom roll, before back bottom roll center is positioned at substantially on the middle roller on the line of plane, back top roller is with respect to afterwards moving behind the bottom roll, it is characterized by on the top roller of back and be with back belt, the tensioning pressure roller is equipped with in the back belt front portion, and back top roller and tensioning pressure roller are installed on the tensioning pressing roller holder.
The back top roller center and the back bottom roll line of centres with respect on the preceding middle roller between the line of plane back angle α be 20～34 degree.
The diameter of back top roller is 20～30mm.
The tensioning pressure roller center and the back bottom roll line of centres are 133 ± 6 degree with respect to going up angle β between the top roller center, back and the back bottom roll line of centres.
The diameter of tensioning pressure roller is 10～20mm.
Middle part, tensioning pressure roller workspace is circumferentially with groove, and the width of groove is 5～12 millimeters.
After adopting technique scheme, at the rear roller jaw to being that one section yarn is enclosed in bottom roll surface, back and is contacted the curve of oppressing yarn by the circular curve that back belt is controlled with the pressure roller lower end apron that is tensioned between the tensioning pressure roller lower end, the controlled tensioning pressure roller lower end that continues up to of yarn, thereby the district of swimming that can make the first break draft district rationally adjusts, makes yarn speed change point to concentrate relatively and reach under the condition of arts demand, reaches the purpose that improves the total draft ability, improves the total draft quality.
Description of drawings
Accompanying drawing is the side view of utility model embodiment fine spining machine three roller three-apron curve drawing devices.
The specific embodiment
Embodiment to utility model is explained as follows in conjunction with the accompanying drawings:
Shown in accompanying drawing, three roller three-apron curve drawing devices comprise back bottom roll 4, back top roller 1, back belt 2, tensioning pressure roller 5, sliver loudspeaker 3, middle bottom roller 6, middle top roller 7, preceding bottom roll, front upper roller and corresponding pressing mechanism (not drawing among the figure) and apron holding mechanism.
Before back bottom roll 4 centers are positioned at substantially on the middle roller on the line of plane, back top roller 1 is with respect to afterwards moving behind the bottom roll 4, back top roller 1 center and back bottom roll 4 lines of centres with respect on the preceding middle roller between the line of plane back angle α be 20～34 degree, 26 ± 3 degree particularly.
Be with back belt 2 on the back top roller 1, tensioning pressure roller 5 is equipped with in back belt 2 front portions, and back top roller 1 is installed on the tensioning pressing roller holder with tensioning pressure roller 5.
The diameter of back top roller 1 is 20～30mm, particularly 25 ± 3mm.
Tensioning pressure roller 5 centers and back bottom roll 4 lines of centres are 133 ± 6 degree with respect to going up angle β between top roller 1 center, back and back bottom roll 4 lines of centres.
The diameter of tensioning pressure roller 5 is 10～20mm, particularly 15 ± 3mm.
Middle part, tensioning pressure roller 5 workspaces is circumferentially with groove, and the width of groove is 5～12 millimeters.
Yarn is after 3 feedings of sliver loudspeaker, be subjected to the gripping of the back jaw of back bottom roll 4 and back top roller 1 composition, back two jaws of behind the arc curve control zone that bottom roll 4 later and back belt 2 are formed, forming to back bottom roll 4 and tensioning pressure roller 5, the yarn that leaves back two jaws continues to be subjected to the compressing control of tensioning pressure roller 5 lower end aprons, again by tensioning pressure roller 5 in go up the middle apron nip that bottom roll 6,7 forms and enter the front draft zone.
The utility model has following favourable feature:
1, the first break draft district is to the omnidistance control of yarn: from the back up and down roller nip, back bottom roll and back belt great circle cambered surface, after two jaws to the tensioning pressure roller;
2, roller nip, back bottom roll contact with back belt great circle cambered surface, back two jaw large tracts of land about the back, and back bottom roll is big to the driving force of back belt, and back belt operation synchronism is good;
3, tensioning pressure roller roller active drive, tensioning back belt, the back belt running resistance is little, and back belt operation synchronism is good;
4, the tensioning pressure roller can be provided with groove at the middle part, makes back two jaws become the elasticity apron nip, soft control yarn;
5, the back belt of tensioning pressure roller lower end front portion is the roller control rod, controls as the relay of leaving after back two jaws are controlled, and makes free zone shortening, the reach of speed change point, and the free zone adjustable length;
6, since back belt and back bottom roll synchronism well the back up and down roller nip grip than common single jaw good, the good stability of total draft;
7, V leads structure and the reel cage structure does not change substantially, changes the tensioning pressing roller holder and directly uses;
8, more simple for structure than other apron of manying first break draft, and control ability is strong, suitable bigger back area draft.
Claims (9)
1, a kind of three-apron curve drawing device, comprise three or four bottom rolls, form top roller and the pressing mechanism thereof that grips jaw with corresponding bottom roll, before back bottom roll center is positioned at substantially on the middle roller on the line of plane, back top roller is with respect to afterwards moving behind the bottom roll, it is characterized by on the top roller of back and be with back belt, the tensioning pressure roller is equipped with in the back belt front portion, and back top roller and tensioning pressure roller are installed on the tensioning pressing roller holder.
2, three-apron curve drawing device as claimed in claim 1, it is characterized by top roller center, back and the back bottom roll line of centres with respect on the preceding middle roller between the line of plane back angle α 20～34 spend.
3, three-apron curve drawing device as claimed in claim 1 or 2, it is characterized by top roller center, back and the back bottom roll line of centres with respect on the preceding middle roller between the line of plane back angle α 26 ± 3 spend.
4, three-apron curve drawing device as claimed in claim 1, the diameter that it is characterized by the back top roller is 20～30mm.
5, as claim 1 or 2 or 4 described three-apron curve drawing devices, the diameter that it is characterized by the back top roller is 25 ± 3mm.
6, three-apron curve drawing device as claimed in claim 1, it is characterized by the tensioning pressure roller center and the back bottom roll line of centres is 133 ± 6 degree with respect to going up angle β between the top roller center, back and the back bottom roll line of centres.
7, three-apron curve drawing device as claimed in claim 1, the diameter that it is characterized by the tensioning pressure roller is 10～20mm.
8, as claim 1 or 2 or 4 or 6 or 7 described three-apron curve drawing devices, the diameter that it is characterized by the tensioning pressure roller is 15 ± 3mm.
9, as claim 1 or 2 or 4 or 6 or 7 or 8 described three-apron curve drawing devices, it is characterized by middle part, tensioning pressure roller workspace and be circumferentially with groove, the width of groove is 5～12 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042445 CN2913399Y (en) | 2006-06-06 | 2006-06-06 | Three-apron curve drafting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042445 CN2913399Y (en) | 2006-06-06 | 2006-06-06 | Three-apron curve drafting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913399Y true CN2913399Y (en) | 2007-06-20 |
Family
ID=38167997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042445 Expired - Fee Related CN2913399Y (en) | 2006-06-06 | 2006-06-06 | Three-apron curve drafting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913399Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792944B (en) * | 2009-09-23 | 2012-03-07 | 常德纺织机械有限公司 | Tight-spinning collecting device |
-
2006
- 2006-06-06 CN CN 200620042445 patent/CN2913399Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792944B (en) * | 2009-09-23 | 2012-03-07 | 常德纺织机械有限公司 | Tight-spinning collecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Jiangsu city of Dongtai Province East Road No. 8, zip code: 224200 Patentee after: Dongfei Mazuoli Textile Machinery Co., Ltd. Address before: Room 5, No. 353, Lane 2304, Ningxia Road, Shanghai, Putuo District, 200063 Patentee before: Ni Yuan |
|
| ASS | Succession or assignment of patent right |
Owner name: DONGFEIMA ZOLI THREAD SPINNER CO., LTD. Free format text: FORMER OWNER: NI YUAN Effective date: 20081212 |
|
| DD01 | Delivery of document by public notice |
Addressee: Dongfei Mazuoli Textile Machinery Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Dongfei Mazuoli Textile Machinery Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |