CN114481378A - Carding sliver making process for short and coarse wool - Google Patents
Carding sliver making process for short and coarse wool Download PDFInfo
- Publication number
- CN114481378A CN114481378A CN202210120787.XA CN202210120787A CN114481378A CN 114481378 A CN114481378 A CN 114481378A CN 202210120787 A CN202210120787 A CN 202210120787A CN 114481378 A CN114481378 A CN 114481378A
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- roller
- wool
- driving device
- leather
- roller pair
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- 210000002268 wool Anatomy 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009960 carding Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- 239000011492 sheep wool Substances 0.000 claims abstract description 4
- 239000010985 leather Substances 0.000 claims description 66
- 239000002216 antistatic agent Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000004931 aggregating effect Effects 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 241001494479 Pecora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention relates to a carding sliver making process for short and coarse wool, which comprises the following steps: A. selecting wool, namely selecting sheep wool with the length of 20-25 mm; B. washing and drying the wool; C. soft opening is carried out by adopting a condenser; D. drawing at one time; E. drawing twice; F. drawing for three times; G. drawing for four times; H. one needle combing step: the gauge of the first gill box is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, 8 slivers obtained after four drawing passes are simultaneously fed into the first gill box for carding, the drafting multiple is 2 times, and the sliver discharging weight after one gill box is 20 g/m; I. two-pass needle combing: the gauge of the two-pass needle combing and balling integrated machine is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, 2 slivers which are combed by the first needle combing are simultaneously fed into the two-pass needle combing and balling integrated machine for carding, the drafting multiple is 2 times, the sliver discharging weight after the second needle combing is 20 g/m, and balling is carried out, so that the added value of the product is greatly improved.
Description
[ technical field ] A
The invention relates to the technical field of spinning, in particular to a carding sliver making process for short and coarse wool.
[ background ] A method for producing a semiconductor device
Wool is an important raw material in textile industry, and has the advantages of good elasticity, strong hygroscopicity, good heat retention property and the like. The wool top is made of clean wool through a wool spinning process, the wool top is a raw material for making yarn, the quality of the wool top directly determines the quality of the yarn, the length of wool on a sheep body is short, in the prior art, due to the limitation of a processing process, long wool can only be made into the wool top, short wool can only be made into loose wool, and finally the loose wool can be made into a filler or a carpet, and the additional value is low.
Therefore, it has been a technical problem unsolved by those skilled in the art how to modify the process so that shorter wool can also be made into slivers.
[ summary of the invention ]
In order to solve the above problems, the present invention aims to provide a process for carding short and thick wool into sliver.
In order to achieve the purpose, the invention adopts the technical scheme that: a carding sliver making process for short and coarse wool comprises the following steps: A. selecting wool, namely selecting sheep wool with the length of 20-25 mm; B. washing and drying: washing wool, and drying the wool to obtain cleaned wool; C. adopting a condenser to carry out soft opening: conveying cleaned wool to a condenser through a negative pressure pipeline, wherein the rotating speed of the condenser is 5 m/min, stripping a wool net of the condenser through a wool stripping roller, conveying the wool net to an upper leather plate twisting device and a lower leather plate twisting device for carrying out up-and-down reciprocating twisting, wherein the twisting period is 100 times/min, meanwhile, wool-blending oil, an attaching agent and an antistatic agent are added in the twisting process, the addition amount of the wool-blending oil is 0.6-0.8% of the mass of the wool, the addition amount of the attaching agent is 0.6-0.8% of the mass of the wool, the addition amount of the antistatic agent is 1-1.2% of the mass of the wool, then carrying out curing treatment on the wool after 6 hours or more after braising, and the weight of the twisted wool sliver is 5 g/m; D. drawing at one step: the roller leather roller pair of the one-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure rod is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then 8 strips twisted into strips are simultaneously fed into the one-pass drawing frame after improvement for combination, and the strip outlet weight after one-pass drawing is 5 g/m; E. and (3) secondary drawing: the roller leather roller pair of the two-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, the 8 slivers subjected to one-pass drawing are simultaneously fed into the improved two-pass drawing frame for combination, and the sliver outlet weight after the two-pass drawing is 5 g/m; F. three-step drawing: the roller leather roller pair of the three-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, 8 strips subjected to two-pass drawing are simultaneously fed into the improved three-pass drawing frame for combination, and the strip outlet weight after three-pass drawing is 5 g/m; G. four drawing steps: the roller leather roller pair of the four-channel drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, 8 strips subjected to three-channel drawing are simultaneously fed into the four-channel drawing frame to be combined, and the strip outlet weight after four-channel drawing is 5 g/m; H. one needle combing step: the gauge of the first gill box is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, 8 slivers obtained after four drawing passes are simultaneously fed into the first gill box for carding, the drafting multiple is 2 times, and the sliver discharging weight after one gill box is 20 g/m; I. two-pass needle combing: the gauge of the two-pass needle combing ball forming all-in-one machine is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, 2 slivers which are combed by the first needle combing are simultaneously fed into the two-pass needle combing ball forming all-in-one machine for carding, the drafting multiple is 2 times, the sliver discharging weight after the second needle combing is 20 g/m, and the slivers are formed.
Preferably, the carding technology of the short and coarse wool is further configured as follows: in the step D, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
Preferably, the carding technology of the short and coarse wool is further configured as follows: in the step E, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
Preferably, the carding slivering process of the short and coarse wools in the invention is further configured as follows: in the step F, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
Preferably, the carding technology of the short and coarse wool is further configured as follows: in the step G, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
Preferably, the carding technology of the short and coarse wool is further configured as follows: in step H above, the one gillbox is an import GN5 gillbox.
Preferably, the carding technology of the short and coarse wool is further configured as follows: in the step I, the two needle combing and balling integrated machine is an inlet GN5 needle combing and balling integrated machine.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the traditional drawing frame is improved, and a series of improvement and adjustment are carried out on the sliver making process according to the characteristics of poor cohesion and poor holding of the short and thick wool, so that the short and thick wool can not only be made into loose wool with low additional value any more, but also be made into slivers like long wool, and the additional value of the product is greatly improved.
[ detailed description ] embodiments
The process of carding short wool into sliver according to the present invention is further described in detail by the following specific examples.
A carding sliver making process for short and coarse wool comprises the following steps: A. selecting wool, namely selecting sheep wool with the length of 20-25 mm; B. washing and drying: washing wool, and then drying the wool to obtain cleaned wool; C. adopting a condenser to carry out soft opening: it is so that to carry out gentle opening because short and thick wool it is different from long wool, long wool adopt conventional opener open can, and short and thick wool is because its length is shorter, if adopt conventional opener open can lead to the wool to float upwards, consequently need carry out gentle opening to short and thick wool through the condenser, specifically do: conveying cleaned wool to a condenser through a negative pressure pipeline, wherein the rotating speed of the condenser is 5 m/min, stripping a wool net of the condenser through a wool stripping roller, conveying the wool net to an upper leather plate twisting device and a lower leather plate twisting device for carrying out up-and-down reciprocating twisting, wherein the twisting period is 100 times/min, meanwhile, wool-blending oil, an aggregating agent and an antistatic agent are added in the twisting process, the addition amount of the wool-blending oil is 0.6-0.8% of the mass of the wool, the addition amount of the aggregating agent is 0.6-0.8% of the mass of the wool, the addition amount of the antistatic agent is 1-1.2% of the mass of the wool, then carrying out curing treatment on the wool during more than 6 hours, the weight of the twisted wool sliver is 5 g/m, and the aggregating twisting is used for improving the resultant force of the short and thick wool; D. drawing at one step: the roller leather roller pair of the one-way drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, and the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, and the drafting multiple is not easy to be too large because wool is short, so that the 8 times of drafting multiple is adopted in the invention; a pressure bar is additionally arranged in the middle of a leather roller, and the drafting gauge is adjusted to 8mm, so that the holding can be increased, then 8 strips twisted into strips are simultaneously fed into an improved drawing frame for drawing, and the weight of the drawn strips after one drawing is 5 g/m; E. and (3) secondary drawing: the roller leather roller pair of the two-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, the 8 slivers subjected to one-pass drawing are simultaneously fed into the improved two-pass drawing frame for combination, and the sliver outlet weight after the two-pass drawing is 5 g/m; F. three-step drawing: the roller leather roller pair of the three-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, 8 strips subjected to two-pass drawing are simultaneously fed into the improved three-pass drawing frame for combination, and the strip outlet weight after three-pass drawing is 5 g/m; G. four drawing steps: the roller pair of the four drawing frames is improved, the traditional three roller pair is changed into a two roller pair, the front roller of the two roller pair is driven by a front roller driving device, the rear roller of the two roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled to be 8 times of that of the rear roller driving device through a controller, so that 8 times of drafting multiple is achieved, a pressure rod is additionally arranged in the middle position of the roller, the drafting spacing is adjusted to be 8mm, then 8 strips subjected to three-pass drawing are simultaneously fed into the four drawing frames subjected to improvement for combination, the weight of the drawn strips after four-pass drawing is 5 g/m, the controller can comprise a Microprocessor (MCU), and the MCU can comprise a Central Processing Unit (Central Processing Unit, CPU), a read-only memory module (ROM), A Random Access Memory (RAM), a timing module, an analog-to-digital (a/D) converter, and a plurality of i/o ports. Of course, the controller may also take the form of other integrated circuits, such as: an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like, in which the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors; H. one needle combing step: the gauge of the first gill box is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, thereby the cohesive force of the thick and short wool can be improved, 8 slivers with four drawing lines are simultaneously fed into the first gill box for carding, the drafting multiple is 2 times, the sliver discharging weight after the first gill box is 20 g/m, in the embodiment, the first gill box is GN5 gill box; I. two-pass needle combing: the space of the two-pass needle combing and ball forming integrated machine is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, so that the cohesive force of the short and coarse wool can be improved, 2 slivers which are combed by the one-pass needle combing are simultaneously fed into the two-pass needle combing and ball forming integrated machine for carding, the drafting multiple is 2 times, the sliver discharging weight after the two-pass needle combing is 20 g/m, and ball forming is carried out, and in the embodiment, the two-pass needle combing and ball forming integrated machine is an inlet GN5 needle combing and ball forming integrated machine.
In conclusion, the invention improves the traditional drawing frame, and carries out a series of improvement and adjustment on the strip making process according to the characteristics of poor cohesive force and poor holding of the thick and short wool, so that the thick and short wool can not only be made into loose wool with low added value any more, but also be made into strips like long wool, thereby greatly improving the added value of products.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (7)
1. A carding sliver making process for short and coarse wool is characterized in that: the method comprises the following steps:
A. selecting wool, namely selecting sheep wool with the length of 20-25 mm;
B. washing and drying: washing wool, and drying the wool to obtain cleaned wool;
C. adopting a condenser to carry out soft opening: conveying the cleaned wool to a condenser through a negative pressure pipeline, wherein the rotation speed of the condenser is 5 m/min, stripping a wool net of the condenser through a wool stripping roller, conveying the wool net to an upper leather plate twisting device and a lower leather plate twisting device for up-and-down reciprocating twisting, wherein the twisting period is 100 times/min, meanwhile, wool-wool oil, an aggregating agent and an antistatic agent are added in the twisting process, the addition amount of the wool-wool oil is 0.6-0.8% of the mass of the wool, the addition amount of the aggregating agent is 0.6-0.8% of the mass of the wool, the addition amount of the antistatic agent is 1-1.2% of the mass of the wool, then stewing is carried out for more than 6 hours for health preserving treatment, and the weight of the twisted sliver is 5 g/m;
D. drawing at one step: the roller pair of the first drawing frame is improved, the traditional three roller pair is changed into a two roller pair, the front roller of the two roller pair is driven by a front roller driving device, the rear roller of the two roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting times is realized, a pressure rod is additionally arranged in the middle position of the roller, the drafting spacing is adjusted to be 8mm, then 8 strips twisted into strips are simultaneously fed into the improved first drawing frame for combination, and the strip outlet weight after the first drawing is 5 g/m;
E. and (3) secondary drawing: the roller leather roller pair of the two-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, the 8 slivers subjected to one-pass drawing are simultaneously fed into the improved two-pass drawing frame for combination, and the sliver outlet weight after the two-pass drawing is 5 g/m;
F. three-step drawing: the roller leather roller pair of the three-pass drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, 8 strips subjected to two-pass drawing are simultaneously fed into the improved three-pass drawing frame for combination, and the strip outlet weight after three-pass drawing is 5 g/m;
G. four drawing steps: the roller leather roller pair of the four-channel drawing frame is improved, the traditional three-roller leather roller pair is changed into a two-roller leather roller pair, a front roller of the two-roller leather roller pair is driven by a front roller driving device, a rear roller of the two-roller leather roller pair is driven by a rear roller driving device, the rotating speed of the front roller driving device is controlled by a controller to be 8 times of that of the rear roller driving device, so that 8 times of drafting multiple is realized, a pressure bar is additionally arranged at the middle position of a leather roller, the drafting spacing is adjusted to 8mm at the same time, then, 8 strips subjected to three-channel drawing are simultaneously fed into the four-channel drawing frame to be combined, and the strip outlet weight after four-channel drawing is 5 g/m;
H. one needle combing step: the gauge of the first gill box is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, 8 slivers obtained after four drawing passes are simultaneously fed into the first gill box for carding, the drafting multiple is 2 times, and the sliver discharging weight after one gill box is 20 g/m;
I. two-pass needle combing: the gauge of the two-pass needle combing ball forming all-in-one machine is 15-20mm, the sliver discharging speed is 45-55 m/min, the density of the needle plate is 6 needles/inch, 2 slivers which are combed by the first needle combing are simultaneously fed into the two-pass needle combing ball forming all-in-one machine for carding, the drafting multiple is 2 times, the sliver discharging weight after the second needle combing is 20 g/m, and the slivers are formed.
2. The process of claim 1, wherein the short wool carding process comprises: in the step D, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
3. The process of claim 1, wherein the short wool carding process comprises: in the step E, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
4. The process of claim 1, wherein the short wool carding process comprises: in the step F, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
5. The process of claim 1, wherein the short wool carding process comprises: in the step G, the controller is a PLC controller, and the front roller driving device and the rear roller driving device are both motors.
6. The process of claim 1, wherein the short wool carding process comprises: in step H above, the one gillbox is an import GN5 gillbox.
7. The process of claim 1, wherein the short wool carding process comprises: in the step I, the two needle combing and balling integrated machine is an inlet GN5 needle combing and balling integrated machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120787.XA CN114481378A (en) | 2022-02-08 | 2022-02-08 | Carding sliver making process for short and coarse wool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120787.XA CN114481378A (en) | 2022-02-08 | 2022-02-08 | Carding sliver making process for short and coarse wool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114481378A true CN114481378A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210120787.XA Pending CN114481378A (en) | 2022-02-08 | 2022-02-08 | Carding sliver making process for short and coarse wool |
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| CN (1) | CN114481378A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115018A (en) * | 1982-02-17 | 1983-09-01 | Nakagawa Seisakusho Co | High draft apparatus for worsted spinning process |
| CN205954176U (en) * | 2016-07-14 | 2017-02-15 | 浙江卓怡纺织有限公司 | Drafting device of drawing frame |
| CN107385574A (en) * | 2017-09-01 | 2017-11-24 | 青岛东佳纺机（集团）有限公司 | A kind of wool spinning for automatically controlling feeding combs system |
| CN111607861A (en) * | 2020-04-26 | 2020-09-01 | 天宇羊毛工业（张家港保税区）有限公司 | Ultra-short bar carding process |
-
2022
- 2022-02-08 CN CN202210120787.XA patent/CN114481378A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2115018A (en) * | 1982-02-17 | 1983-09-01 | Nakagawa Seisakusho Co | High draft apparatus for worsted spinning process |
| CN205954176U (en) * | 2016-07-14 | 2017-02-15 | 浙江卓怡纺织有限公司 | Drafting device of drawing frame |
| CN107385574A (en) * | 2017-09-01 | 2017-11-24 | 青岛东佳纺机（集团）有限公司 | A kind of wool spinning for automatically controlling feeding combs system |
| CN111607861A (en) * | 2020-04-26 | 2020-09-01 | 天宇羊毛工业（张家港保税区）有限公司 | Ultra-short bar carding process |
Non-Patent Citations (2)
| Title |
|---|
| 林子务: "棉纺设备生产精梳短毛纱的探讨", 《毛纺科技》 * |
| 郁崇文，东华大学出版社, 东华大学出版社 * |
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