CN113502571B - Symmetrical drafting device of spinning experimental machine - Google Patents
Symmetrical drafting device of spinning experimental machine Download PDFInfo
- Publication number
- CN113502571B CN113502571B CN202111058730.3A CN202111058730A CN113502571B CN 113502571 B CN113502571 B CN 113502571B CN 202111058730 A CN202111058730 A CN 202111058730A CN 113502571 B CN113502571 B CN 113502571B
- Authority
- CN
- China
- Prior art keywords
- drafting
- rotating shaft
- driving
- fixedly connected
- fixed
- 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.)
- Active
Links
Images
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
- D01H13/00—Other common constructional features, details or accessories
- D01H13/28—Heating or cooling arrangements for yarns
-
- 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
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a symmetrical drafting device of a spinning experimental machine, which specifically comprises: the support is characterized in that two ends of the top of the support are fixedly connected with a fixed disc, and one side of the fixed disc is fixedly connected with a fixed baffle; the drafting device is arranged between the two fixed baffles at the top of the bracket, and two ends of the drafting device are rotatably connected with the fixed baffles; the pre-shrinking device is arranged between the two fixed baffles at the top of the bracket, and two ends of the pre-shrinking device are fixedly connected with the fixed baffles; the driving motor is arranged on the side face of the fixed disc at one end of the top of the support, and a driving shaft of the driving motor penetrates through the fixed disc and is fixedly connected with the drafting device. This spinning experimental machine symmetry draft device avoids yarn and draft device to take place relative slip, conveniently improves the precision of draft to can adapt to the yarn of different thicknesses, the adaptation regulation nature is better, and the commonality is strong.
Description
Technical Field
The invention relates to the technical field of drafting, in particular to a symmetrical drafting device of a spinning experimental machine.
Background
In the spinning process, the process of drawing long and thin fiber strands is called drafting, the drawing of the fiber strands is the result of relative movement of the fibers in the strands along the length direction, so the essence of the drafting is the relative movement of the fibers along the axial direction of the fiber strands, the purpose of the drawing is to draw long and thin fiber strands to reach a specified linear density, and the fibers are parallel and straightened due to the relative movement of the fibers in the drafting process, and under certain conditions, the fiber bundles in the product can be separated into single fibers. The drafting device used in the existing spinning experimental machine is generally a linear drafting device, the drafting device occupies a large space, the contact part between the yarn and the roller is small, the relative sliding between the yarn and the roller is caused, the drafting precision is influenced, the roller jaw is inconvenient to adjust, and the drafting device cannot be well adapted to yarns with different thicknesses.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a symmetrical drafting device of a spun yarn testing machine, which solves the problems that the drafting device used in the existing spun yarn testing machine is generally a linear drafting device, the drafting device occupies a large space, the contact part between yarn and rollers is less, the yarn and the rollers slide relatively to each other to influence the drafting precision, the jaw of the rollers is inconvenient to adjust, and the spun yarn testing machine cannot be well adapted to yarns with different thicknesses.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a symmetrical drafting device of a spinning experimental machine comprises:
the support is characterized in that two ends of the top of the support are fixedly connected with a fixed disc, and one side of the fixed disc is fixedly connected with a fixed baffle;
the drafting device is arranged between the two fixed baffles at the top of the bracket, and two ends of the drafting device are rotatably connected with the fixed baffles;
the pre-shrinking device is arranged between the two fixed baffles at the top of the bracket, and two ends of the pre-shrinking device are fixedly connected with the fixed baffles;
the driving motor is arranged on the side surface of the fixed disc at one end of the top of the support, and a driving shaft of the driving motor penetrates through the fixed disc and is fixedly connected with the drafting device;
the draft device includes:
the driving device comprises a driving rotating shaft, a driven rotating shaft and a driving gear, wherein the two ends of the driving rotating shaft are fixedly connected with the driving gear, one side of the driving gear is meshed with a driven gear, and one side of the driven gear is fixedly connected with the driven rotating shaft;
the drafting sleeves are provided with a plurality of groups, elastic friction rings are arranged between every two drafting sleeves, and the elastic friction rings and the drafting sleeves are sleeved on the driving rotating shaft and the driven rotating shaft;
and the thread sleeves are arranged at two ends of the drafting sleeve and sleeved on the driving rotating shaft and the driven rotating shaft and in threaded connection with the driving rotating shaft and the driven rotating shaft.
When in use, the yarn penetrates between the driving rotating shaft and the drafting sleeve on the driven rotating shaft in the drafting device, and the yarn is extruded in the middle through the two elastic friction rings, because the drafting device is provided with a plurality of groups which are distributed on the fixed baffle in a circular arc shape, when the yarn enters the back group of drafting device, part of the yarn can be wound on the elastic friction ring in the front group of drafting device, the contact area between the drafting device and the yarn is conveniently increased, the yarn and the drafting device are prevented from sliding relatively, the drafting precision is conveniently improved, in addition, the drafting sleeve and the elastic friction rings are arranged, the threaded sleeve can be moved on the driving rotating shaft and the driven rotating shaft by rotating the threaded sleeve, when the threaded sleeve moves, the drafting sleeve is extruded, the drafting sleeve moves and extrudes the elastic friction rings, the distance between the two elastic friction rings is changed through the deformation of the elastic friction rings, and therefore, the yarn with different thicknesses can be adapted, the adaptability and the adjustability are good, and the universality is strong.
Preferably, the drafting device is provided with a plurality of groups and is distributed on the fixed baffle in a circular arc shape, and the two ends of the driving rotating shaft and the driven rotating shaft are fixedly connected with the fixed baffle through bearings.
Preferably, the driving motors are provided with a plurality of groups and correspond to the drafting devices one by one, and driving shafts of the driving motors are fixedly connected with driving rotating shafts inside the drafting devices.
Preferably, the device that contracts in advance includes the shrink sleeve, the outside cover of shrink sleeve is equipped with heating sleeve, spiral locking groove has been opened to heating sleeve outside, shrink sleeve inner wall runs through and the swivelling joint has the electric pole, shrink sleeve one end fixedly connected with rotates the motor.
Be provided with the device that contracts in advance, after the yarn passes through the draft device draft and enters the device that contracts in advance, the accessible is through the inside electric hot rod heating locking sleeve and the heating sleeve of the device that contracts in advance, and the yarn after to the draft is heated the preshrinking through the heating sleeve, can avoid being heated the fracture that the contraction leads to when the yarn is in the tensioning state in follow-up course of working, and be provided with spiral locking groove, can prolong the yarn time of being heated, make the yarn fully contract, spiral locking groove is provided with multiunit and can cooperates the elastic friction circle and handle multiunit yarn simultaneously, high machining efficiency, be provided with the rotation motor, accessible rotates the motor and drives the sleeve that contracts and the heating sleeve rotates, thereby drive the yarn and rotate, avoid the yarn condition that the fracture is led to the contraction greatly to the tensile force when sliding.
Preferably, the rotating motor is fixed on the fixed baffle, two ends of the tightening sleeve are rotatably connected with the fixed baffle, and two ends of the electric heating rod are fixedly connected with the fixed baffle.
Preferably, the spiral locking grooves are provided with a plurality of groups and correspond to the elastic friction rings in the drafting device one by one.
(III) advantageous effects
The invention provides a symmetrical drafting device of a spinning experimental machine. The method has the following beneficial effects:
(1) this spinning experimental machine symmetry draft device passes the yarn between the last draft sleeve of drive pivot and driven spindle in the draft device to extrude the yarn in the centre through two elastic friction circles, because the draft device is provided with the multiunit and be convex distribution on solid fixed stop, when the yarn was on getting into back a set of draft device, can twine partial yarn around the inside elastic friction circle of preceding a set of draft device, conveniently increase the area of contact of draft device and yarn, avoid yarn and draft device to take place relative slip, conveniently improve the precision of draft.
(2) This spinning experimental machine symmetry draft device is provided with draft sleeve and elastic friction circle, and the rotatory threaded sleeve of accessible makes threaded sleeve move in drive pivot and driven spindle, and when threaded sleeve removed, extrusion draft sleeve, draft sleeve removed and extrudees elastic friction circle, and the deformation through elastic friction circle changes the distance between two elastic friction circles to adapt to the yarn of different thicknesses, the adaptation regulation nature is better, and the commonality is strong.
(3) This spun yarn experiment machine symmetry drafting arrangement, be provided with the device that contracts in advance, after the yarn passes through the drafting arrangement draft and enters the device that contracts in advance, the accessible is through the inside electric heat pole heating locking sleeve of the device that contracts in advance and heating sleeve, and through heating sleeve to the yarn after the draft contract in advance, can avoid being heated the fracture that the contraction leads to when the yarn is in the tensioning state in follow-up course of working, and be provided with spiral locking groove, can prolong yarn heated time, make the yarn fully contract, spiral locking groove is provided with the multiunit and can cooperates the elastic friction circle and handle multiunit yarn simultaneously, machining efficiency is higher, be provided with the rotation motor, the accessible rotates the motor and drives the sleeve that contracts and the heating sleeve rotates, thereby drive the yarn and rotate, the great condition that leads to the contraction fracture when avoiding the yarn to slide.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the drawing apparatus of the present invention;
FIG. 4 is a schematic view of a pre-shrinking apparatus according to the present invention;
FIG. 5 is a schematic view of the internal structure of the pre-shrinking device of the present invention.
In the figure: 1. the device comprises a support, 2, a fixed disc, 3, a fixed baffle, 4, a drafting device, 41, a driving rotating shaft, 42, a driving gear, 43, a driven gear, 44, a driven rotating shaft, 45, a drafting sleeve, 46, an elastic friction ring, 47, a threaded sleeve, 5, a pre-shrinking device, 51, a shrinking sleeve, 52, a heating sleeve, 53, a spiral locking groove, 54, an electric heating rod, 55, a rotating motor, 6 and a driving motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-3, the present invention provides a technical solution: a symmetrical drafting device of a spinning experimental machine comprises:
the device comprises a support 1, wherein both ends of the top of the support 1 are fixedly connected with a fixed disc 2, and one side of the fixed disc 2 is fixedly connected with a fixed baffle 3;
the drafting device 4 is arranged between the two fixed baffles 3 at the top of the bracket 1, and two ends of the drafting device 4 are rotatably connected with the fixed baffles 3;
the pre-shrinking device 5 is arranged between the two fixed baffles 3 at the top of the bracket 1, and two ends of the pre-shrinking device 5 are fixedly connected with the fixed baffles 3;
the driving motor 6 is arranged on the side surface of the fixed disc 2 at one end of the top of the bracket 1, and a driving shaft of the driving motor 6 penetrates through the fixed disc 2 and is fixedly connected with the drafting device 4;
the draft device 4 includes:
a driving shaft 41, wherein both ends of the driving shaft 41 are fixedly connected with a driving gear 42, one side of the driving gear 42 is engaged with a driven gear 43, and one side of the driven gear 43 is fixedly connected with a driven shaft 44;
the drafting sleeves 45 are provided with a plurality of groups, elastic friction rings 46 are arranged between every two drafting sleeves 45, and the elastic friction rings 46 and the drafting sleeves 45 are sleeved on the driving rotating shaft 41 and the driven rotating shaft 44;
and the threaded sleeves 47 are arranged at two ends of the drafting sleeve 45, and the threaded sleeves 47 are sleeved on the driving rotating shaft 41 and the driven rotating shaft 44 and are in threaded connection with the driving rotating shaft 41 and the driven rotating shaft 44.
When the drafting device 4 is used, yarns penetrate between the driving rotating shaft 41 and the drafting sleeve 45 on the driven rotating shaft 44 in the drafting device 4, and are extruded in the middle through the two elastic friction rings 46, because the drafting device 4 is provided with a plurality of groups which are distributed on the fixed baffle 3 in a circular arc shape, when the yarns enter the next group of drafting device 4, partial yarns can be wound on the elastic friction ring 46 in the previous group of drafting device 4, the contact area between the drafting device 4 and the yarns is conveniently increased, the yarns are prevented from sliding relative to the drafting device 4, the drafting precision is conveniently improved, the drafting sleeve 45 and the elastic friction rings 46 are arranged, the threaded sleeve 47 can be moved on the driving rotating shaft 41 and the driven rotating shaft 44 by rotating the threaded sleeve 47, when the threaded sleeve 47 is moved, the drafting sleeve 45 is extruded, the sleeve 45 moves and extrudes the elastic friction rings 46, the distance between the two elastic friction rings 46 is changed through the deformation of the elastic friction rings 46, therefore, the yarn feeding device is suitable for yarns with different thicknesses, good in adaptability and strong in universality.
Example two:
referring to fig. 1-5, the present invention provides a technical solution: device 5 contracts in advance is including the shrink sleeve 51, the outside cover of shrink sleeve 51 is equipped with heating sleeve 52, spiral locking groove 53 has been seted up in the heating sleeve 52 outside, shrink sleeve 51 inner wall runs through and has the electric pole 54, shrink sleeve 51 one end fixedly connected with rotates motor 55, it fixes on fixed stop 3 to rotate motor 55, shrink sleeve 51 both ends all rotate with fixed stop 3 and be connected, electric pole 54 both ends all with fixed stop 3 fixed connection, spiral locking groove 53 is provided with the multiunit and with the inside elastic friction circle 46 one-to-one of draft device 4.
The yarn pre-shrinking device 5 is arranged, after being drafted by the drafting device 4 and entering the pre-shrinking device 5, the locking sleeve 51 and the heating sleeve 52 can be heated through the electric heating rod 54 in the pre-shrinking device 5, the drafted yarn is heated and pre-shrunk through the heating sleeve 52, the fracture caused by thermal shrinkage when the yarn is in a tensioning state in the subsequent processing process can be avoided, the spiral locking groove 53 is formed, the heating time of the yarn can be prolonged, the yarn is fully shrunk, the spiral locking groove 53 is provided with a plurality of groups of elastic friction rings 46 which can be matched with each other, meanwhile, the plurality of groups of yarns are treated, the processing efficiency is high, the rotating motor 55 is arranged, the rotating motor 55 can be used for driving the shrinking sleeve 51 and the heating sleeve 52 to rotate, the yarn is driven to rotate, and the condition that the shrinkage fracture is caused by large tensioning force when the yarn slides is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A symmetrical drafting device of a spinning experimental machine comprises:
the device comprises a support (1), wherein both ends of the top of the support (1) are fixedly connected with a fixed disc (2), and one side of the fixed disc (2) is fixedly connected with a fixed baffle (3);
the drafting device (4), the drafting device (4) is arranged between the two fixed baffles (3) at the top of the bracket (1), and both ends of the drafting device (4) are rotatably connected with the fixed baffles (3);
the pre-shrinking device (5) is arranged between the two fixed baffles (3) at the top of the support (1), and two ends of the pre-shrinking device (5) are fixedly connected with the fixed baffles (3);
the driving motor (6) is arranged on the side surface of the fixed disc (2) at one end of the top of the support (1), and a driving shaft of the driving motor (6) penetrates through the fixed disc (2) and is fixedly connected with the drafting device (4);
the symmetrical drafting device of the spinning experimental machine is characterized in that: the drafting device (4) comprises:
the driving device comprises a driving rotating shaft (41), wherein two ends of the driving rotating shaft (41) are fixedly connected with driving gears (42), one side of each driving gear (42) is meshed with a driven gear (43), and one side of each driven gear (43) is fixedly connected with a driven rotating shaft (44);
the drafting sleeves (45) are provided with a plurality of groups, elastic friction rings (46) are arranged between every two drafting sleeves (45), and the elastic friction rings (46) and the drafting sleeves (45) are sleeved on the driving rotating shaft (41) and the driven rotating shaft (44);
the thread sleeves (47) are arranged at two ends of the drafting sleeve (45), and the thread sleeves (47) are sleeved on the driving rotating shaft (41) and the driven rotating shaft (44) and are in threaded connection with the driving rotating shaft (41) and the driven rotating shaft (44).
2. The symmetrical drafting system of the spinning experimental machine as claimed in claim 1, wherein: the drafting device (4) is provided with a plurality of groups and is distributed on the fixed baffle (3) in an arc shape, and two ends of the driving rotating shaft (41) and two ends of the driven rotating shaft (44) are fixedly connected with the fixed baffle (3) through bearings.
3. The symmetrical drafting system of the spinning experimental machine as claimed in claim 1, wherein: the driving motor (6) is provided with a plurality of groups and is in one-to-one correspondence with the drafting device (4), and a driving shaft of the driving motor (6) is fixedly connected with a driving rotating shaft (41) inside the drafting device (4).
4. The symmetrical drafting system of the spinning experimental machine as claimed in claim 1, wherein: the pre-shrinking device (5) comprises a shrinking sleeve (51), a heating sleeve (52) is sleeved outside the shrinking sleeve (51), a spiral locking groove (53) is formed in the outer side of the heating sleeve (52), an electric heating rod (54) is connected to the inner wall of the shrinking sleeve (51) in a penetrating and rotating mode, and a rotating motor (55) is fixedly connected to one end of the shrinking sleeve (51).
5. The symmetric drafting system of the spinning experimental machine as claimed in claim 4, wherein: the rotating motor (55) is fixed on the fixed baffle (3), the two ends of the tightening sleeve (51) are rotatably connected with the fixed baffle (3), and the two ends of the electric heating rod (54) are fixedly connected with the fixed baffle (3).
6. The symmetric drafting system of the spinning experimental machine as claimed in claim 4, wherein: the spiral locking grooves (53) are provided with a plurality of groups and correspond to the elastic friction rings (46) in the drafting device (4) one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111058730.3A CN113502571B (en) | 2021-09-10 | 2021-09-10 | Symmetrical drafting device of spinning experimental machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111058730.3A CN113502571B (en) | 2021-09-10 | 2021-09-10 | Symmetrical drafting device of spinning experimental machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113502571A CN113502571A (en) | 2021-10-15 |
| CN113502571B true CN113502571B (en) | 2021-11-16 |
Family
ID=78016578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111058730.3A Active CN113502571B (en) | 2021-09-10 | 2021-09-10 | Symmetrical drafting device of spinning experimental machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113502571B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329188A (en) * | 2000-06-08 | 2002-01-02 | 马尔佐利有限公司 | Positioning frame for textile fibre bundle drawing and hot-press sanforizing device |
| CN204589433U (en) * | 2014-11-19 | 2015-08-26 | 经纬纺织机械股份有限公司 | A kind of ring throstle gathers and heating type spinning apparatus |
| CN205874617U (en) * | 2016-07-26 | 2017-01-11 | 常州环锭纺织机械有限公司 | Weaving rubber ring roller device |
| CN208965116U (en) * | 2018-10-29 | 2019-06-11 | 江西达佳特种天然纤维有限公司 | A kind of twister of spinning frame |
| CN209292551U (en) * | 2018-12-17 | 2019-08-23 | 桐乡市豪杰纺织有限公司 | A kind of draft mechanism of drawing frame |
| CN111270361A (en) * | 2020-03-04 | 2020-06-12 | 武汉纺织大学 | Spinning device for synchronously rotating and controlling fiber arrangement structure and spinning process thereof |
| CN213866576U (en) * | 2020-11-11 | 2021-08-03 | 嵊州市恒嘉机械有限公司 | High-reliability roller |
-
2021
- 2021-09-10 CN CN202111058730.3A patent/CN113502571B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329188A (en) * | 2000-06-08 | 2002-01-02 | 马尔佐利有限公司 | Positioning frame for textile fibre bundle drawing and hot-press sanforizing device |
| CN204589433U (en) * | 2014-11-19 | 2015-08-26 | 经纬纺织机械股份有限公司 | A kind of ring throstle gathers and heating type spinning apparatus |
| CN205874617U (en) * | 2016-07-26 | 2017-01-11 | 常州环锭纺织机械有限公司 | Weaving rubber ring roller device |
| CN208965116U (en) * | 2018-10-29 | 2019-06-11 | 江西达佳特种天然纤维有限公司 | A kind of twister of spinning frame |
| CN209292551U (en) * | 2018-12-17 | 2019-08-23 | 桐乡市豪杰纺织有限公司 | A kind of draft mechanism of drawing frame |
| CN111270361A (en) * | 2020-03-04 | 2020-06-12 | 武汉纺织大学 | Spinning device for synchronously rotating and controlling fiber arrangement structure and spinning process thereof |
| CN213866576U (en) * | 2020-11-11 | 2021-08-03 | 嵊州市恒嘉机械有限公司 | High-reliability roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113502571A (en) | 2021-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112921460B (en) | Elasticizer and protofilament production process thereof | |
| EP2456912A1 (en) | Method for removing and drawing a synthetic thread and a device for performing the method | |
| US4891872A (en) | Apparatus for incrementally drawing fibers | |
| CN113502571B (en) | Symmetrical drafting device of spinning experimental machine | |
| CN109591330B (en) | Glue-free fiber bar heat setting machine of glue-free fiber bar production line | |
| US2979882A (en) | Method and apparatus for stretching and twisting continuous filament yarn | |
| EP2527502B1 (en) | Apparatus for taking off and drawing a synthetic yarn | |
| US4980957A (en) | Improved method of incremently drawing fibers | |
| CN108893809B (en) | Single yarn drafting processing device | |
| CN212895152U (en) | Twisting machine | |
| CN108893807B (en) | Clutch type traction wheel driving device | |
| CN109591331B (en) | Glue-free fiber bar production line | |
| US2563039A (en) | Apparatus for the manufacture of artificial yarns | |
| EP0096540A2 (en) | A method and apparatus for producing spun yarn having true twist | |
| CN1138111A (en) | Method and apparatus for spinning synthetic multi-filament yarn | |
| CN108977943B (en) | Single yarn drafting driving device | |
| CN215887330U (en) | A draft setting device for producing processing of polyamide fibre silk | |
| CN211311707U (en) | Drafting winder with more uniform filament forming | |
| CN220927050U (en) | Feeding device for composite short fiber production | |
| CN108914272B (en) | Yarn drafting device | |
| US3461657A (en) | Textile apparatus | |
| CN213652763U (en) | Upper leather roller assembly for roving frame drafting mechanism | |
| CN109056130B (en) | Quick tow moving mechanism of elasticizer | |
| CN210237863U (en) | Drafting device of stretch breaking machine | |
| CN219260321U (en) | Mobile drafting device for preparing bunchy yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |