CN202786565U - Double-area airflow control drafting device - Google Patents
Double-area airflow control drafting device Download PDFInfo
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- CN202786565U CN202786565U CN 201220382781 CN201220382781U CN202786565U CN 202786565 U CN202786565 U CN 202786565U CN 201220382781 CN201220382781 CN 201220382781 CN 201220382781 U CN201220382781 U CN 201220382781U CN 202786565 U CN202786565 U CN 202786565U
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- drafting system
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Abstract
The utility model discloses a double-area airflow control drafting device. A negative pressure force application method is induced into the drafting device. The double-area airflow control drafting device is characterized in that an upper pin with negative pressure airflow is adopted in a middle leather roller and meanwhile a leather ring with a through hole is adopted. On one hand, gathering control on negative pressure airflow fibers in the process of back area drafting can be achieved, and back-area drafting capacity can be improved effectively; and on the other hand, effective control on the fibers in the process of front area drafting can be achieved, and therefore positions of speed change points are centralized, and drafting effect can be improved effectively. By adjusting the amount of the negative pressure provided by a negative pressure air suction port, process configuration can be optimized, and drafting effect can be improved.
Description
Technical field
The utility model relates to a kind of two-region air-flow control drafting system.
Background technology
Drafting system is the important component part of fine spining machine work, and its performance directly has influence on yarn quality.Improvement to the conventional spinning frame drafter also is one of the most popular research direction in the field of spinning at present, is studying a question of comparatively paying close attention at present and how the Effective Raise back zone drafting multiple improves the total draft multiple then.The low main cause of back area draft ability has two aspects.The one, for ease of practical operation, the back zone general structure is comparatively simple, a little less than the control to fiber, the 2nd, the rove of feeding itself is with certain twist, if thereby it is directly carried out larger drawing-off, it is irregular to produce easily drawing-off, has a strong impact on yarn quality.Therefore, for Effective Raise back area draft ability under the prerequisite that guarantees yarn quality, to increase the back zone to the control of fiber on the one hand, should make on the other hand speed change point remain on the middle part, back zone as far as possible, keep drawing-off even.And the measure that improves at present the back area draft ability is mainly to improve first aspect as main, also namely takes certain measure to increase the back zone to the control ability of fiber, and to second aspect consider less.Therefore, need counter extensioin device back zone to transform: to increase force application apparatus, with the Effective Raise back zone drafting multiple, and then improve drafting system total draft multiple.On the other hand, the proparea is owing to adopt two Apron Drafts, and control fiber ability is strong, thereby the main forward district of total draft multiple bears, its drawing-off ability is generally 20 ~ 30 times, owing to adopt than the high draft multiple, therefore, cause easily speed change point not concentrated, so that drawing-off is irregular, affects the drawing-off effect, therefore, also need counter extensioin device proparea to transform: to increase force application apparatus, so that concentrate speed change point position.
As everyone knows, the RING SPINNING technology is the most a kind of spinning technique of present domestic and international application, but this technology has increased the generation of filoplume owing to the existence of twist triangle zone.Therefore, be the problem of spinning research and comparison hot topic for the improvement of ring spinning technology especially its twisting process always, and obtaining a series of plentiful and substantial achievements in research aspect engineering practice and the theoretical research.Wherein, air-flow is a topmost measure in the RING SPINNING technological improvement, utilize negative-pressure air-flow to realize effectively gathering before the fiber twisting and then reduce the trigonum and improve the suction type of yarn quality to gather compact spinning technology be wherein the most outstanding representative, it laterally condenses the fibre bundle by the control zone, the width of fibre bundle is dwindled greatly, almost near the width of twist triangle zone, fibre bundle is through closely and then by twisting winding, almost every of fibre bundle fiber can both be closely in the yarn body, thereby form high performance Compact-spun Yarn:, also can improve the utilization rate of raw material.Than mechanical force mechanism, streamer mode is more convenient for controlling, and therefore, airflow influence the links of spinning, is the topmost mode of action in the spinning process.Therefore, transform if streamer mode can be introduced drafting system realization counter extensioin device at present, so that Effective Raise drawing-off effect is concentrated in speed change point position.
Summary of the invention
The purpose of this utility model provides a kind of two-region air-flow control drafting system.
The utility model adopts following technical scheme:
A kind of two-region air-flow control drafting system, adopt three roller draft structures, before comprising, in, rear three counter extensioin rollers pair, every counter extensioin roller is to comprising a roller and a roller, the right medium rubber roller of middle drawing rollers is provided with the upper leather ring structure, described upper leather ring structure comprises pin and two upper leather rings, described upper pin axially arranges and is crossed on the both sides of described medium rubber roller along described medium rubber roller, described two aprons respectively tensioning are wrapped on the two ends and described medium rubber roller of described upper pin, described two upper leather rings are with through hole, described upper pin is the hollow structure of internal run-through, comprises the front side, rear side and connection front side, the pars intermedia of rear side, the front side, on the bottom surface of rear side air outlet is arranged, and contain the negative-pressure air-suction mouth on the rear side, rear side is positioned at the first break draft district, and the front side is positioned at the front draft zone, realizes in the drafting process the effective control to fiber.
Further, described upper pin pars intermedia is that arcuate structure is embedded in the rotating shaft of described medium rubber roller.
Being shaped as of described air outlet is square, circular or oval.
Front side described in the utility model is arcuate structure, and radian is between 90 ° to 100 °.
Rear side described in the utility model is that incline is the rectangular structure of circular arc.
The right middle roller of middle drawing rollers described in the utility model is provided with lower rubber ring structure, described lower rubber ring structure also comprises downside pin and the lower apron with through hole, described downside pin comprises front downside pin and the rear downside pin that is positioned at the middle roller both sides, described lower apron tensioning is wrapped on described front downside pin, middle roller and the rear downside pin, and described lower apron jaw structure before described front downside pin place and described upper leather ring form.Jaw structure is realized the fiber control in the drafting process of proparea before being somebody's turn to do, realization is to effective gripping of fiber, then realize the fiber aggregate control of proparea drafting process by the negative pressure of upper pin front side, strengthen the proparea to effective control of fiber strip, can strengthen on the one hand the effective control to the district's fiber that swims, can so that concentrate speed change point position, realize even drawing-off on the other hand.
Lower apron described in the utility model is jaw structure after described rear downside pin place and described upper leather ring form.Jaw structure is realized the fiber control in the back area draft process after being somebody's turn to do, realization is to effective gripping of fiber, then realize the fiber aggregate control of back area draft process by the negative pressure of upper pin rear side, strengthen the back zone to effective control of rove yarn, simultaneously, the rove yarn is under the effect of this power, and control speed change point is moved to the right front neighbouring by original drawing rollers, realization is to the uniformly and effectively high draft of rove with certain twist, Effective Raise back area draft ability.
By above technical scheme, a kind of two-region of the present utility model air-flow control drafting system, the negative-pressure air-flow force mechanism is introduced drafting system, it adopts the upper pin that contains negative-pressure air-flow at the medium rubber roller place, adopt simultaneously the apron with through hole, realize that on the one hand negative-pressure air-flow in the back area draft process is to the control of gathering of fiber, Effective Raise back area draft ability; Realize on the other hand in the drafting process of proparea the effective control to fiber, so that Effective Raise drawing-off effect is concentrated in speed change point position; The vacuum magnitude that can provide by regulating the negative-pressure air-suction mouth, the Optimization Technology configuration improves the drawing-off effect.
Description of drawings
Fig. 1 is the structural representation of two-region of the present utility model air-flow control drafting system;
Fig. 2 is the structural representation of the medium rubber roller upper leather ring structure of two-region of the present utility model air-flow control drafting system;
Fig. 3 is the structural representation of upper pin of the medium rubber roller upper leather ring structure of two-region of the present utility model air-flow control drafting system;
Among the figure, 1 is rear roller, and 2 is upper leather ring, and 3 is medium rubber roller, 4 is front roller, and 5 is front leather roller, and 6 is rove, and 7 is rear roller, 8 is rear downside pin, and 9 is external tapping, and 10 is middle roller, and 11 is lower apron, 12 is front downside pin, and 13 is rear side, and 14 is the front side, 15 are rotating shaft, and 16 is pars intermedia, and 17 is the negative-pressure air-suction air channel, 18 is the negative-pressure air-suction mouth, and 19 is air outlet, and 20 is through hole.
The specific embodiment
Such as Fig. 1,2, shown in 3, a kind of two-region air-flow control drafting system, comprise first break draft roller that rear roller 7 and rear roller 1 form pair, the front draft roller that front roller 4 and front leather roller 5 forms pair, middle drawing rollers that medium rubber roller 3 with rubber ring structure and middle roller 10 form pair, medium rubber roller 3 is provided with the upper leather ring structure, the upper leather ring structure comprises pin and two upper leather rings 2 with through hole 20, upper pin axially arranges and is crossed on the both sides of medium rubber roller 3 along medium rubber roller, two aprons 2 respectively tensioning are wrapped on the two ends and medium rubber roller 3 of pin, upper leather ring 2 rotates with medium rubber roller under the drive of medium rubber roller 3, upper pin is the hollow structure of internal run-through, upper pin comprises front side 14, rear side 13 and connection front side 14, the pars intermedia 16 of rear side 13, pars intermedia 16 is embedded in the rotating shaft 15 of medium rubber roller 3 for arcuate structure, air outlet 19 is positioned at front side 14, on the bottom surface of rear side 13, the shape of air outlet 19 can be square, circular or oval.And rear side 13 is provided with the negative-pressure air-suction air channel 17 with negative-pressure air-suction mouth 18, and rear side 13 is positioned at the first break draft district, and front side 14 is positioned at the front draft zone, realizes the forward and backward draw zone fiber control of counter extensioin device.
The right middle roller 10 of above-mentioned middle drawing rollers is provided with lower rubber ring structure, lower rubber ring structure also comprises downside pin and the lower apron 11 with through hole, downside pin comprises front downside pin 12 and the rear downside pin 8 that is positioned at the middle roller both sides, lower apron 11 tensionings are wrapped on front downside pin 12, middle roller 10 and the rear downside pin 8, and lower apron 11 is jaw structure before front downside pin 12 places and upper leather ring 2 formation, realizes the effective gripping to proparea draw zone fiber.Jaw structure is realized the fiber control in the drafting process of proparea before being somebody's turn to do, realization is to effective gripping of fiber, then realize the fiber aggregate control of proparea drafting process by the negative pressure of upper pin front side, strengthen the proparea to effective control of fiber strip, can strengthen on the one hand the effective control to the district's fiber that swims, can so that concentrate speed change point position, realize even drawing-off on the other hand.Above-mentioned lower apron 11 forms rear jaw structure at rear downside pin 8 places and upper leather ring 2, realizes the effective gripping to back area draft district fiber.Jaw structure is realized the fiber control in the back area draft process after being somebody's turn to do, realization is to effective gripping of fiber, then realize the fiber aggregate control of back area draft process by the negative pressure of upper pin rear side, strengthen the back zone to effective control of rove yarn, simultaneously, the rove yarn is under the effect of this power, and control speed change point is moved to the right front neighbouring by original drawing rollers, realization is to the uniformly and effectively high draft of rove with certain twist, Effective Raise back area draft ability.
As shown in Figure 2, the negative-pressure air-flow that negative-pressure air-suction mouth 18 on the negative-pressure air-suction air channel 17 produces by external tapping 9 is directly delivered to the rear side 13 of hollow, then act on the back zone fiber strip by the air outlet 19 of upper pin rear side 13 bottoms and the through hole 20 on the upper leather ring, realize the fiber control to the back area draft process; Pars intermedia by hollow is delivered to front side 14 simultaneously, then acts on the proparea fiber strip by the air outlet 19 of 14 bottoms, upper pin front side and the through hole 20 on the upper leather ring, realizes the fiber aggregate control to the proparea drafting process.The vacuum magnitude that negative-pressure air-suction air channel 17 provides can be regulated arbitrarily, thereby can control according to the spinning needs of reality the concentrated position of speed change point, Optimization Technology.
The groundwork mode of this two-region air-flow control drafting system is: as shown in Figure 1, rove 6 enters drafting system through feeding unit, through rear roller 7 and after the first break draft roller that forms of roller 1 pair, enter middle drawing rollers that medium rubber roller 3 and middle roller 10 form pair, form back area draft, the rove yarn that enters the back zone is gripped by rear jaw structure, in medium rubber roller 3, be stretched under the effect of the upper leather ring 2 interior negative-pressure air-flows on the pin rear side 13, speed change point is moved to the right front neighbouring by original drawing rollers, realize that the back zone is to the evenly effectively drawing-off of rove sliver, therefrom drawing rollers enter the front draft roller that is comprised of front roller 4 and front leather roller 5 pair to out sliver, form the proparea drawing-off, the fiber strip that enters the proparea is gripped by front jaw structure, in medium rubber roller 3, be stretched under the effect of the upper leather ring 2 interior negative-pressure air-flows on the pin front side 14, so that concentrate speed change point position and even stationary distribution.Finally, the rove 6 that feeds is taken out long drawing-down uniformly and become fibre bundle.
Claims (6)
1. a two-region air-flow is controlled drafting system, adopt three roller draft structures, the right medium rubber roller of middle drawing rollers is provided with the upper leather ring structure, it is characterized in that: the upper pin of described upper leather ring structure is the hollow structure of internal run-through, comprise the front side, rear side and the described front side of connection, the pars intermedia of rear side, described front side, on the bottom surface of rear side air outlet is arranged, and contain the negative-pressure air-suction mouth on the described rear side, described rear side is positioned at the first break draft district, described front side is positioned at the front draft zone, upper leather ring respectively tensioning is wrapped on the two ends and described medium rubber roller of front and back side of described upper pin, and described upper leather ring has through hole.
2. a kind of two-region as claimed in claim 1 air-flow control drafting system, it is characterized in that: described upper pin pars intermedia is arcuate structure, is embedded in the rotating shaft of described medium rubber roller.
3. air-flow control drafting system in a kind of two-region as claimed in claim 1 is characterized in that: square, the circle or oval of being shaped as of described air outlet.
4. a kind of two-region as claimed in claim 1 air-flow control drafting system, it is characterized in that: described upper pin front side is arcuate structure, and radian is between 90 ° to 100 °.
5. a kind of two-region as claimed in claim 1 air-flow control drafting system, it is characterized in that: described upper pin rear side is that incline is the rectangular structure of circular arc.
6. such as each described a kind of two-region air-flow control drafting system of claim 1-5, it is characterized in that: the right middle roller of described middle drawing rollers is provided with lower rubber ring structure, described lower rubber ring structure comprises downside pin and the lower apron with through hole, described downside pin comprises front downside pin and the rear downside pin that is positioned at described middle roller both sides, described lower apron tensioning is wrapped on described front downside pin, middle roller and the rear downside pin, and described lower apron forms jaw structure at downside pin place and described upper leather ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382781 CN202786565U (en) | 2012-08-03 | 2012-08-03 | Double-area airflow control drafting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382781 CN202786565U (en) | 2012-08-03 | 2012-08-03 | Double-area airflow control drafting device |
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| Publication Number | Publication Date |
|---|---|
| CN202786565U true CN202786565U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382781 Expired - Fee Related CN202786565U (en) | 2012-08-03 | 2012-08-03 | Double-area airflow control drafting device |
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| CN (1) | CN202786565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760765A (en) * | 2019-10-21 | 2021-05-07 | 卓郎纺织解决方案两合股份有限公司 | Condenser for a drafting system of a spinning machine and drafting system of a condenser |
-
2012
- 2012-08-03 CN CN 201220382781 patent/CN202786565U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760765A (en) * | 2019-10-21 | 2021-05-07 | 卓郎纺织解决方案两合股份有限公司 | Condenser for a drafting system of a spinning machine and drafting system of a condenser |
| CN112760765B (en) * | 2019-10-21 | 2023-02-17 | 卓郎纺织解决方案两合股份有限公司 | Cotton condenser for a drafting system of a spinning machine and drafting system of a cotton condenser |
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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: 20130313 Termination date: 20150803 |
|
| EXPY | Termination of patent right or utility model |