CN201080517Y - Ring spinning frame four-roller drafting mechanism - Google Patents
Ring spinning frame four-roller drafting mechanism Download PDFInfo
- Publication number
- CN201080517Y CN201080517Y CNU2007200404053U CN200720040405U CN201080517Y CN 201080517 Y CN201080517 Y CN 201080517Y CN U2007200404053 U CNU2007200404053 U CN U2007200404053U CN 200720040405 U CN200720040405 U CN 200720040405U CN 201080517 Y CN201080517 Y CN 201080517Y
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- CN
- China
- Prior art keywords
- roller
- apron
- drafting
- ring
- upper leather
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- Expired - Fee Related
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- Spinning Or Twisting Of Yarns (AREA)
Abstract
The utility model discloses a four-roller drafting mechanism of a ring frame, comprising a pair of front drafting rollers including a front roller and a front belt roller and a pair of back drafting rollers including a back roller and a back belt roller. A central roller and an upper roller are arranged between the front drafting rollers and the back drafting rollers. A lower apron is nested on the central roller and an upper apron is nested on the upper roller. The lower apron and the upper apron are rubbed and contacted with each other to form a dual-apron nip. A central back roller is rubbed and contacted with the outside surface of the upper apron nested on the upper roller. The dual-apron nip of the drafting mechanism has the advantages of even apron speed and stable working capability, not only applicable for the drafting mechanism of common drafting multiple but also for the high-multiple drafting mechanism.
Description
Technical field
The utility model relates to the ring throstle of spinninging technical field, relates in particular to the improvement of ring throstle drafter.
Background technology
The drafter of ring throstle is that the rove of feeding or strip are taken out the finished product spun yarn that long drawing-down becomes to have certain special number equably, so the run stability of drafting system of ring spinner, directly affects the quality index of resultant yarn.
The drafter of tradition ring throstle mostly adopts three roller double belt drafting structural shapes, and it comprises that to form front roller by front roller and preceding rubber roll right, and the rear roller of rear roller and back cot composition is right; And the middle roller that middle roller and middle top roller are formed is right, is with apron down on middle roller, is equipped with on the middle top roller to sell and be with upper leather ring; The working face of upper and lower apron directly contacts sliver, thereby forms apron nip, effectively controlling fiber motion, and the fiber that front roller nip is gripped is extracted out smoothly, has bigger drawing-off ability.
Yet, because last, in the apron nip that following apron is formed, the motion-promotion force of upper leather ring comes as for the following apron of CONTACT WITH FRICTION with it, and down apron then come as for middle top roller to the tight middle roller of roll extrusion, this frictional force that thrust produces that contacts that only relies on middle roller and middle top roller to concentrate on the contact wire drives, following apron motion mode, its job stability is very limited often, on adding, the difference of following apron bending rigidity also can make, following apron and last, frictional resistance can change between downside pin, thereby apron in the real-world operation process, very easily occurs and make a pause, smooth uniform velocity non-uniform phenomenon, make the apron job insecurity, and the unstable rule of apron work means that the drafting multiple of apron draft jaw is in change at random, and then the stability that directly influences the apron control action with become sliver to do, this seems particularly outstanding for high drafting mechanism.Though strengthen middle top roller can alleviate apron to the pressure of upper leather ring the irregular phenomenon of speed.But pressure is overweight, not only strengthens the damage to apron, even forms and to run over and injure, to reduce the service life of apron, and causes the frictional resistance increase of middle top roller and middle roller bearing, and apron speed irregularity worsens on the contrary.
The utility model content
Technical problem to be solved in the utility model provide a kind of apron speed evenly, ring throstle four roller drafting mechanisms of working stability.
In order to solve the problems of the technologies described above, technical solution adopted in the utility model is, four roller drafting mechanisms of ring throstle, comprise that the front draft roller with front roller and front leather roller is right, first break draft roller with rear roller and back roller is right, the front draft roller to and the first break draft roller between be provided with middle roller and middle top roller, be with down apron on this middle roller, middle top roller is with upper leather ring, upper leather ring is formed two apron nips with the mutual CONTACT WITH FRICTION of following apron, also frictionally contacting at the described upper leather ring lateral surface that is placed on the middle top roller has middle rear roller.
After adopting said structure, at first owing to frictionally contacted middle rear roller at the upper leather ring lateral surface, thereby make the upper leather ring lateral surface be adjacent to middle roller and two rollers of middle rear roller simultaneously, the two drives structure patterns of upper leather ring have been formed, increased the transmission cornerite of upper leather ring, making upper leather ring drive contact-making surface increases, the friction-driven ability strengthens, can avoid apron to make a pause effectively with smooth, guaranteed the uniformity of apron movement velocity and the synchronism of upper and lower apron movement velocity, the stability that has improved apron work with become sliver quality index such as to do.Equally also because upper leather ring lateral surface CONTACT WITH FRICTION has middle rear roller, this just makes fiber strip form a grip hold arc on middle top roller, both further expanded the intensity distributions of middle roller friction field, shortened noncontrolled area length again effectively, apron is obviously extended the control length of fiber strip, thereby strengthened the control action of counter extensioin district fiber strip, improved the quality of drawing-off ability and drawing-off yarn.Also because the upper leather ring lateral surface has been set up middle rear roller, this just forms two at the upper leather ring lateral surface and grips jaw, make the front draft zone between front roller and middle roller, then draw zone is then between middle rear roller and rear roller, form the mutual separation of forward and backward draw zone, avoid the drawing-off of forward and backward draw zone to disturb, apron is smooth to reducing, the synchronism of apron is highly beneficial up and down for the not even improvement of speed.
A kind of preferred implementation of the present utility model, described ring throstle four roller drafting mechanisms, frictional drive is connected with middle roller Jie roller between described middle roller and middle rear roller.Such structure has increased the transmission cornerite of time apron on the one hand, and the frictional drive contact area that makes down apron become two drives structure patterns again increases, and the net synchronization capability of upper and lower apron movement velocity is more superior; On the other hand, pressurization between middle top roller mandrel and the middle roller Jie roller core shaft can realize that the pressurization between middle top roller and middle roller and middle rear roller, middle roller Jie roller and middle roller and the middle rear roller is finished by a pressure structure like this by an elasticity jib.
Further embodiment of the present utility model is provided with control roll between middle roller and rear roller.This structure helps strengthening the control action to first break draft district fiber strip, to improve first break draft district yarn quality.
Further again embodiment of the present utility model, described rear roller drawing plane is higher than anterior drawing-off plane, and roller relative rear roller in back is setovered backward.This structure makes the fiber strip in first break draft district form grip hold arc on rear roller, and the fiber strip of front draft zone forms grip hold arc on middle top roller, and the yarn in the whole drafter has formed the double-contracting arc, and is very outstanding effectively to the control action of fiber.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of specific embodiment of the utility model ring throstle four roller drafting mechanisms.
Fig. 2 is the structural representation of the another kind of specific embodiment of the utility model ring throstle four roller drafting mechanisms.
The specific embodiment
In ring throstle shown in Figure 1 four roller drafting mechanisms, it is right that front roller 13 and front leather roller 12 are formed the front draft roller, and it is right that rear roller 3 and back roller 2 are formed the first break draft roller.The front draft roller to and the first break draft roller between be provided with middle roller 7 and middle top roller 6, be with upper leather ring 8 on the middle top roller 6, be with down apron 14 on the middle roller 7, upper leather ring 8 and following apron 14 are also walked around respectively and are sold 9 and downside pin 10, and upper leather ring 8 is pressed close to contact with following apron 14 phase mutual friction and formed pair apron nips.Transmission upper leather ring 8 makes it motion by contact friction force to be placed in following apron 14 on the middle roller 7, the working face of upper leather ring 8 and following apron 14 directly contacts the fiber strip 11 that enters the front draft zone, produce certain friction field, stop fiber to do sth. in advance speed change, thereby controlling fiber yarn motion effectively makes this drafter have stronger drawing-off ability.At the lateral surface of upper leather ring 8 rear roller 5 during also frictionally contact has, rear roller 5 is positioned at the rear side of middle roller 7 in this, and middle rear roller 5 and middle roller 7 are isometric and adopt identical structural shape, its power source also to come headstock transmission mechanism as for fine spining machine.
The first break draft roller is to comprising rear roller 3 and back roller 2, rear side at the rear roller jaw is equipped with rove yarn guiding port 1, the drawing plane of rear roller 3 (surface that contacts with fiber strip) is higher than the anterior drawing-off plane of drafter, this drawing-off plane, front portion is positioned at the common tangent plane position of front roller 13 and middle roller 7, also is the face that passes through of fiber strip.Back roller 2 relative rear rollers 3 certain distance of setovering backward, thus constitute V-type curve drawing structure.First break draft district between middle roller 7 and rear roller 3 also is provided with control roll 4, and the cross section of this control roll 4 is rounded in this enforcement.
Rove enters into rear roller jaw, control roll 4 successively through rove yarn guiding port 1, enter the jaw of forming by middle top roller 6 and middle rear roller 5 again, form along upper leather ring 8 surface and enter into the double belt drafting jaw that middle top roller 6, middle roller 7 and upper leather ring 8 and following apron 14 are formed behind the grip hold arc, last fiber strip 11 enters into front roller nip and quilt is twisted into the resultant yarn finished product.
Shown in Figure 2 is the another kind of embodiment of novel ring throstle four roller drafting mechanisms of this reality.In this embodiment except that the middle roller part-structure with the foregoing description is different, all the other structures are identical.This its structure of middle roller part is also to be connected with to frictional drive middle roller Jie roller 15 between middle roller and middle rear roller, and this middle roller Jie roller 15 adopts the structural shape identical with middle top roller, and promptly each roller is only corresponding to two ingots.Its power source all comes the frictional drive as for middle roller 7 and middle rear roller 5, middle roller 7 and middle rear roller 5 drive middle roller Jie roller 15 by contact friction force, such structure has increased the transmission cornerite of time apron on the one hand, makes down apron become two structural shapes that drive again.Pressurization between middle top roller mandrel and the middle roller Jie roller core shaft can realize that the pressurization between middle top roller and middle roller and middle rear roller, middle roller Jie roller and middle roller and the middle rear roller is finished by a pressure structure like this by an elasticity jib.
Above-mentionedly only enumerated preferred implementations more of the present utility model, but the utility model is not limited thereto, can also makes many conversion and improvement.As long as adopted middle rear roller structure, and no matter the rear roller structure is identical with common middle roller structure in this, still identical with the middle top roller structure, all should be considered as falling in the protection domain of the present utility model.
Claims (4)
1. ring throstle four roller drafting mechanisms, the front draft roller that comprises have front roller (13) and front leather roller (12) is right, first break draft roller with rear roller (3) and back roller (2) is right, the front draft roller to and the first break draft roller between be provided with middle roller (7) and middle top roller (6), be with down apron (14) on this middle roller (7), middle top roller (6) is with upper leather ring (8), upper leather ring (8) and following apron (14) be CONTACT WITH FRICTION and form two apron nips mutually, it is characterized in that: described be placed on the middle top roller (6) upper leather ring (8) lateral surface also frictionally contact middle rear roller (5) is arranged.
2. ring throstle four roller drafting mechanisms according to claim 1 is characterized in that: frictional drive is connected with middle roller Jie roller (15) between described middle roller (7) and middle rear roller (5).
3. ring throstle four roller drafting mechanisms according to claim 1 and 2 is characterized in that: be provided with control roll (4) between middle roller (7) and rear roller (3).
4. ring throstle four roller drafting mechanisms according to claim 1 and 2 is characterized in that: described rear roller (3) drawing plane is higher than anterior drawing-off plane, and the relative rear roller (3) of back roller (2) is setovered backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200404053U CN201080517Y (en) | 2007-07-27 | 2007-07-27 | Ring spinning frame four-roller drafting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200404053U CN201080517Y (en) | 2007-07-27 | 2007-07-27 | Ring spinning frame four-roller drafting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080517Y true CN201080517Y (en) | 2008-07-02 |
Family
ID=39614194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200404053U Expired - Fee Related CN201080517Y (en) | 2007-07-27 | 2007-07-27 | Ring spinning frame four-roller drafting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080517Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607854A (en) * | 2020-05-19 | 2020-09-01 | 嘉兴学院 | Guiding method and guiding assembly for fibers in main drafting area of roller drafting mechanism |
-
2007
- 2007-07-27 CN CNU2007200404053U patent/CN201080517Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607854A (en) * | 2020-05-19 | 2020-09-01 | 嘉兴学院 | Guiding method and guiding assembly for fibers in main drafting area of roller drafting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080702 Termination date: 20150727 |
|
| EXPY | Termination of patent right or utility model |