CN116770473A - Low-torque spinning device - Google Patents
Low-torque spinning device Download PDFInfo
- Publication number
- CN116770473A CN116770473A CN202310741996.0A CN202310741996A CN116770473A CN 116770473 A CN116770473 A CN 116770473A CN 202310741996 A CN202310741996 A CN 202310741996A CN 116770473 A CN116770473 A CN 116770473A
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- CN
- China
- Prior art keywords
- false twisting
- raised strips
- area
- false
- low
- 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.)
- Pending
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 35
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004753 textile Substances 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000007378 ring spinning Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
- D01H7/923—Spinning or twisting arrangements for imparting transient twist, i.e. false twist by means of rotating devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a low-torque spinning device, which belongs to the technical field of textile engineering and comprises a device body assembled on a yarn bobbin, wherein the device body is divided into a false twisting area and a connecting part, the connecting part is assembled on the yarn bobbin, the connecting part is arranged into a hollow or solid cylinder structure, the false twisting area is arranged into a solid sphere or round platform structure, and a plurality of raised strips are uniformly arranged on the outer side of the false twisting area. According to the low-torque spinning device with the structure, friction between the raised strips arranged on the outer side of the false twisting area and yarns is utilized to achieve the false twisting effect when the device rotates, so that the strength of yarns near a triangular area is enhanced, broken ends are reduced, and the situation that the yarns cannot be spun due to excessive broken ends of the triangular area in the low-torque spinning process is improved; the device has simple structure and convenient use, is assembled on the ring bobbin, and drives the device to rotate by utilizing the rotation of the ring bobbin, so that other transmission devices are not needed, and energy is saved.
Description
Technical Field
The invention relates to the technical field of textile engineering, in particular to a low-torque spinning device.
Background
Warp deformation of knitted fabrics is a common problem in single-sided weft jersey knitted fabrics, which not only affects the aesthetics of the fabric and clothing, but also reduces the cutting utilization of the knitted fabric. Research at home and abroad shows that the warp deformation of the knitted fabric is mainly caused by the residual torque of the yarn. In order to improve the distortion of knitted fabrics and reduce the residual torque of yarns, a low-torque spinning technology is commonly adopted at present, namely various false twisting devices are utilized to change the arrangement of fibers in the yarns, so that the yarns can be spun smoothly under the conditions of lower twist and torque, and finally the low-twist yarns are obtained. The method comprises the following steps: (1) By utilizing the rotation of the roller, the yarn tangentially rolls due to friction driving force, so that the sliver obtains corresponding false twist, and finally the torque of the yarn is reduced. The method is simple and easy to implement, but the twist reduction effect is not obvious enough, and the problem that the torsion stress is reduced and the sliver strength is correspondingly reduced exists; (2) The method can reduce the yarn twist coefficient by 22-35% by utilizing single-belt transmission to rotate the sliver and obtain false twist, but the method must require that the belt joint is smooth and has high joint strength, if the joint is poor, the machine parts and the belt can be damaged, and the yarn breakage rate is also rapidly increased along with the reduction of the yarn linear density; (3) A false twisting device with an upper belt and a lower belt is arranged between a front roller of a traditional ring spinning frame and a yarn guide to perform false twisting on yarn, the device adopts two false twisting points, the false twisting efficiency is obviously higher than that of a single-belt false twisting device with only one false twisting point, the production efficiency is high, but the upper belt and the lower belt are adopted to bring inconvenience to yarn joints and doffing, and the device has high power consumption.
In view of the above-described drawbacks of the prior art, the present invention provides a low twist spinning device that can be mounted on a yarn tube.
Disclosure of Invention
The invention aims to provide a low-torque spinning device, which achieves the effect of false twisting by utilizing friction between convex strips arranged on the outer side of a false twisting area and yarns when the device rotates, thereby enhancing the strength of yarns near a triangular area, reducing broken ends and improving the situation that the yarns cannot be spun due to excessive broken ends of the triangular area in the low-torque spinning process; the device has simple structure and convenient use, is assembled on the ring bobbin, and drives the device to rotate by utilizing the rotation of the ring bobbin, so that other transmission devices are not needed, and energy is saved.
In order to achieve the above object, the present invention provides a low torque spinning device, comprising a device body assembled on a yarn bobbin, wherein the device body is divided into a false twisting area and a connecting portion, the connecting portion is assembled on the yarn bobbin, the connecting portion is provided with a hollow or solid cylinder structure, the false twisting area is provided with a solid sphere or round table structure, and the outer side of the false twisting area is uniformly provided with a plurality of raised strips.
Preferably, when the false twist region is in a sphere structure, the maximum diameter is 12-22mm.
Preferably, when the false twisting area is in a truncated cone structure, the diameter of the top surface is 10-14 mm, the diameter of the bottom surface is 16-22 mm, the vertical height is 4-10 mm, and the included angle between the side edge of the false twisting area and the horizontal plane is 30-60 degrees.
Preferably, the outer diameter of the connecting part is 6-12 mm, and the column height of the connecting part is 10-40 mm.
Preferably, the shape of the raised strips is prismatic or circular arc, the number of the raised strips is 4-12, the height of the raised strips perpendicular to the outer wall of the false twisting area is 0.25-2 mm, the length of the raised strips parallel to the outer wall of the false twisting area is 1-5 mm, the perpendicular distance between the top ends of the raised strips and the top ends of the false twisting area is 1-9 mm, and the width of the raised strips is 0.5-2.5 mm.
Therefore, the low-torque spinning device with the structure achieves the false twisting effect by utilizing friction between the raised strips arranged on the outer wall and yarns when the device rotates, thereby enhancing the strength of yarns near a triangular area, reducing broken ends and improving the situation that the yarns cannot be spun due to excessive broken ends of the triangular area in the low-torque spinning process; the device has simple structure and convenient use, can be fixed on the yarn tube through the connecting part, and can be driven to rotate by the rotation of the yarn tube without additionally arranging other transmission devices, thereby saving energy.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic view of a low torque spinning device according to an embodiment 1 of the present invention;
FIG. 2 is a schematic view of an embodiment 2 of a low torque spinning device according to the present invention;
FIG. 3 is a schematic view of an embodiment 3 of a low torque spinning device according to the present invention;
FIG. 4 is a front view of an embodiment of a low torque spinning device of the present invention mounted on a spinning frame;
FIG. 5 is a left side view of an embodiment of a low torque spinning device of the present invention mounted on a spinning frame;
reference numerals:
1. false twisting area; 2. a convex strip; 3. a connection portion; 4. a yarn tube; 5. a yarn guiding hook; 6. a front roller; 7. sliver.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
As shown in fig. 1-3, the invention provides a low torque spinning device, which comprises a device body assembled on a spun yarn tube, wherein the outer diameter value parameter of a connecting part of the device body is determined by the top caliber of the spun yarn tube 4, the device body is divided into a false twisting area 1 and a connecting part 3, the connecting part 3 is arranged into a hollow or solid cylinder structure, the outer diameter of a cylinder of the connecting part 3 is the same as the top caliber of the spun yarn tube 4, the size of the cylinder is 9-11 mm, and the height of the cylinder of the connecting part 3 is 10-40 mm.
The false twist region 1 is arranged into a solid sphere or truncated cone structure, and when the false twist region 1 is in a sphere structure, the maximum diameter of the false twist region 1 is 12-22mm. The outer side of the false twisting region 1 is uniformly provided with a plurality of raised strips 2, the number of the raised strips 2 is 4-12, the shape of the raised strips 2 is prismatic or circular arc, the height of the raised strips 2 vertical to the outer wall of the false twisting region 1 is 0.25-2 mm, the length of the raised strips 2 parallel to the outer wall of the false twisting region 1 is 1-5 mm, the vertical distance between the top ends of the raised strips 2 and the top ends of the false twisting region 1 is 1-5 mm, and the width of the raised strips 2 is 0.5-2.5 mm.
As shown in fig. 1, in order to avoid that the sliver 7 is excessively rubbed against the surface of the device body to increase the number of broken ends when passing through the device body, the outer edge of the false twist region 1 and the surface of the raised strip 2 are both provided with smooth rounded corners. Meanwhile, the false twisting efficiency can be controlled by changing the shape of the raised strips 2, the size, the height and other parameters of the raised strips 2. If yarns with very low twist are spun, false twisting efficiency can be improved by means of properly increasing the height of the raised strips 2, reducing the size of the fillets, and the like.
As shown in fig. 4 to 5, in order to ensure that the sliver 7 can be closely attached to the raised strips 2 outside the false twist region 1, it is necessary to determine the diameter of the false twist region 1 and ensure that the raised strips are within a proper range, and the positions of the raised strips 2, the surface morphology of the raised strips 2, and the like affect the adhesion of the sliver 7 to the raised strips 2. As shown in fig. 4, the sliver 7 is output from the jaw of the front roller 6 and then reaches the device body through the yarn guide hook 5, so that the sliver 7 can be tightly attached to the surface of the raised line, meanwhile, the device cannot collide with the yarn guide hook in the whole spinning process, the shape and the size of the top end of the balloon need to be analyzed, the maximum diameter of the false twist area is slightly larger than the diameter of the formed balloon, and the top end of the device cannot be contacted with the yarn guide hook when the keel rises to the highest position. In addition, if the false twisting area is a round table, the angle of the false twisting area needs to be determined according to the shape of the top end of the balloon, so that the balloon can be attached to the side surface of the round table. The shape of the false twist region can be determined according to the specific twist of the spun yarn, and if the spun yarn twist is small, the spun yarn can be designed as a truncated cone, so that the contact range between the sliver 7 and the false twist region 1 is increased, and the false twist efficiency is improved. If the twist is larger, the sphere can ensure that the sliver 7 is in smooth contact with the false twisting area 1, so that the spinning process is more stable.
Example 1
Cotton yarn with a linear density of 30tex and a twist multiplier of 240 was spun on a spinning frame. As shown in FIG. 1, the outer diameter of the connecting portion of the device body was 10mm, the false twist region was a sphere, the diameter was 16mm, and the column height of the connecting portion was 22mm. The number of the raised strips is 8, the cross section is triangular, the height is 1.5mm, the length is 3mm, the width is 1mm, and the center of the raised strips is positioned on the maximum circumference of the false twisting region sphere. The yarn forming properties are shown in table 1.
Example 2
Cotton yarn with a linear density of 15tex and a twist factor of 200 was spun on a spinning frame. As shown in FIG. 2, the outer diameter of the device body was 10mm, the false twisting area was a circular truncated cone, the vertical height was 6mm, the top surface diameter was 12mm, the bottom surface diameter was 20mm, and the column height of the connecting portion was 25mm. The number of the raised strips is 12, the cross section is triangular, the height is 2mm, the length is 4mm, the width is 1mm, and the vertical distance between the center of the raised strips and the top surface of the circular truncated cone is 3mm. The yarn forming properties are shown in table 1.
Example 3
Cotton yarn with a linear density of 45tex and a twist multiplier of 280 was spun on a spinning frame. As shown in FIG. 3, the outer diameter of the device body was 10mm, the false twist region was a sphere, the diameter was 15mm, and the column height of the connecting portion was 19mm. The number of the raised strips is 4, the cross section is elliptical, the minor axis is 0.8mm, the major axis is 1.5mm, and the center of the raised strips is positioned on the maximum circumference of the false twisting region sphere. The yarn forming properties are shown in table 1.
As can be seen from table 1, when cotton yarns of the same twist multiplier are spun, the breakage rate and sliver twist potential are significantly reduced using the low torque spinning method proposed herein compared to conventional ring spinning. In addition, the low twist spinning method provided by the invention can spin cotton yarn with twist coefficient as low as 200, and traditional ring spinning can not smoothly produce yarn. Thus, the present device can be used to produce low torque yarns.
Table 1 comparison of low twist spun yarn with conventional ring spun yarn
-indicating a failure to form a yarn
Therefore, the low-torque spinning device achieves the false twisting effect by utilizing friction between the raised strips arranged on the inner wall and yarns when the device rotates, thereby enhancing the strength of yarns near a triangular area, reducing broken ends and improving the situation that the yarns cannot be spun due to excessive broken ends of the triangular area in the low-torque spinning process; the device has simple structure and convenient use, can be fixed on the yarn tube through the connecting part, and can be driven to rotate by the rotation of the yarn tube without additionally arranging other transmission devices, thereby saving energy.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (5)
1. A low torque spinning apparatus, characterized in that:
including the device body of assembly on the ring bobbin, the device body divide into false twist region and connecting portion, connecting portion assemble on the ring bobbin, connecting portion set up to cavity or solid cylinder structure, false twist region sets up to solid spheroid or round platform structure, the outside in false twist region evenly is provided with a plurality of sand grips.
2. A low torque spinning apparatus according to claim 1, wherein: when the false twisting area is in a sphere structure, the maximum diameter is 12-22mm.
3. A low torque spinning apparatus according to claim 1, wherein: when the false twisting area is in a truncated cone structure, the diameter of the top surface is 10-14 mm, the diameter of the bottom surface is 16-22 mm, the vertical height is 4-10 mm, and the included angle between the side edge of the false twisting area and the horizontal plane is 30-60 degrees.
4. A low torque spinning apparatus according to claim 1, wherein: the external diameter of the connecting part is 6-12 mm, and the column height of the connecting part is 10-40 mm.
5. A low torque spinning apparatus according to claim 4, wherein: the shape of the raised strips is prismatic or circular arc, the number of the raised strips is 4-12, the height of the raised strips perpendicular to the outer wall of the false twisting area is 0.25-2 mm, the length of the raised strips parallel to the outer wall of the false twisting area is 1-5 mm, the vertical distance between the top ends of the raised strips and the top ends of the false twisting area is 1-9 mm, and the width of the raised strips is 0.5-2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310741996.0A CN116770473A (en) | 2023-06-21 | 2023-06-21 | Low-torque spinning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310741996.0A CN116770473A (en) | 2023-06-21 | 2023-06-21 | Low-torque spinning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116770473A true CN116770473A (en) | 2023-09-19 |
Family
ID=88012912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310741996.0A Pending CN116770473A (en) | 2023-06-21 | 2023-06-21 | Low-torque spinning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116770473A (en) |
-
2023
- 2023-06-21 CN CN202310741996.0A patent/CN116770473A/en active Pending
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