CN111850753A - High-efficiency compact spinning device and spinning method - Google Patents
High-efficiency compact spinning device and spinning method Download PDFInfo
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- CN111850753A CN111850753A CN202010736438.1A CN202010736438A CN111850753A CN 111850753 A CN111850753 A CN 111850753A CN 202010736438 A CN202010736438 A CN 202010736438A CN 111850753 A CN111850753 A CN 111850753A
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- roller
- gathering
- air inlet
- negative pressure
- drafting
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- 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
- D01H5/72—Fibre-condensing guides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
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- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a high-efficiency gathering spinning device and a spinning method, the device is characterized in that an independently driven output roller is arranged at the front part of a front drawing roller, a negative pressure air suction system comprising a negative pressure pipe and a gathering ring sleeved on the negative pressure pipe and the output lower roller is additionally arranged between the front drawing roller and the output lower roller, a negative pressure air flow guiding device is arranged above the gathering pipe, a left air inlet group and a right air inlet group which are arranged in bilateral symmetry and have unequal front and back intervals are respectively arranged on the left side and the right side of the negative pressure air flow guiding device, the height of the left air inlet group is larger than that of the right air inlet group or the height of the left air inlet group is smaller than that of the right air inlet group, so that S-direction or Z-direction vortex air flow is formed in a hollow structure of the negative pressure air flow guiding device under the action of the negative pressure air flow in the negative pressure air flow guiding device, twisting action is realized on fiber beard strips gathered, and then the utilization efficiency of the negative pressure airflow is improved, and the efficient concentration is realized.
Description
Technical Field
The invention belongs to the technical field of spinning, and relates to a ring spinning system and a ring spinning method, in particular to a high-efficiency compact spinning device and a spinning method.
Background
Compact spinning, also known as compact spinning, is a new spinning technology for spinning on an improved ring spinning frame, and improves the quality of finished yarn by adding a fiber condensation zone in front of a drawing device of the ring spinning frame. At present, the compact spinning types which are mainly used internationally include the latticed ring type (mainly including the German Sussen three-roller latticed ring type, the Japanese Toyota four-roller latticed ring type), the roller type (the COM4 of Rieter in Rieter Ridges, Switzerland), the perforated apron type (mainly including the Zinser perforated apron type), the mechanical type (mainly including the compact spinning system of Roscrraft magnetic gathering type in Carlos, Switzerland), and the latticed ring type, the roller type and the perforated apron type belong to the negative pressure air flow gathering mode. Among them, the Rosscarft mechanical compact spinning system is currently used in China rarely due to poor variety adaptability (generally only suitable for spinning yarns below 60 Ne) and other reasons; the Zinser perforated leather ring type has poor variety adaptability (generally only suitable for wool spinning), needs to be introduced into a whole machine, and has high price (average 1500 yuan per spindle), so the Zinser perforated leather ring type has small domestic use scale. Therefore, the lattice-circle type compact spinning currently occupies the mainstream market, but the phenomena of higher modification and maintenance cost, higher energy consumption, difficult control of aggregation effect and the like generally exist in the lattice-circle type compact spinning system.
Disclosure of Invention
The technical problem to be solved is as follows: in order to overcome the defects of the prior art, the negative pressure airflow guiding device capable of guiding the airflow to generate the required turning vortex airflow is additionally arranged to realize twisting and gathering effects on the fiber strands in the gathering area, so that the gathering effect is obviously improved, the utilization efficiency of the negative pressure airflow is improved, and efficient gathering is realized.
The technical scheme is as follows: the high-efficiency gathering spinning device comprises a drafting system, the drafting system comprises a rear drafting roller pair, a middle drafting roller pair and a front drafting roller pair, the rear drafting roller pair comprises a rear lower drafting roller and a rear upper pressing rubber roller, the middle drafting roller pair comprises a middle lower drafting roller and a middle upper pressing rubber roller, the front drafting roller pair comprises a front lower drafting roller and a front upper pressing rubber roller, the front part of the front drafting roller pair is additionally provided with an output roller pair, the output roller pair comprises an output lower roller and an output upper rubber roller, the rear lower drafting roller, the middle lower drafting roller, the front lower drafting roller and the output lower roller have the same structure, the rear upper pressing rubber roller, the middle upper pressing rubber roller, the front upper pressing rubber roller and the output upper rubber roller have the same structure, the diameters of the roller shafts of the rear lower drafting roller, the middle lower drafting roller and the front lower drafting roller are the same and are larger than the diameter of the roller shaft of the output lower roller, the diameters of the middle rubber roll shafts of the rear upper pressing rubber roll, the middle upper pressing rubber roll, the front upper pressing rubber roll and the output upper rubber roll are the same, the diameters of the rubber roll sleeves of the rear upper pressing rubber roll, the middle upper pressing rubber roll, the front upper pressing rubber roll and the output upper rubber roll are the same, the roller shafts of the front lower drafting rollers are driven to rotate by a first motor, the roller shafts of the middle lower drafting rollers and the roller shafts of the front lower drafting rollers are in transmission connection through a first gear set, the rotating speed of the roller shaft of the middle lower drafting roller is smaller than that of the roller shaft of the front lower drafting roller, the roller shaft of the output roller is driven to rotate by a second motor, the rotating linear speed of the roller sleeve of the output lower roller is larger than that of the roller sleeve of the front lower roller, the rear upper pressing rubber roll, the middle upper pressing rubber roll and the front upper pressing rubber roll are embedded in a pressurizing assembly, the rear part of the pressurizing assembly is fixed on a fixed cross bar which is fixed on a roller seat, the front part of the pressurizing assembly is provided with a secondary pressurizing device, the rear part of the secondary pressurizing device is connected with the front part of the pressurizing assembly through a rotating part, the secondary pressurizing assembly is of a spring pressurizing structure, the rubber roll shaft of the output upper rubber roll is embedded in the secondary pressurizing assembly so as to realize the fixed installation of the output upper rubber roll, an aggregation system is arranged between the front drafting roller pair and the output roller pair and comprises an aggregation pipe, the aggregation pipe is arranged between the front lower drafting roller and the output lower roller, the aggregation pipe, the front lower drafting roller and the output lower roller are kept on an inclined plane, the aggregation pipe comprises an upper side surface, a front side surface and a rear side surface, and the upper side surface of the aggregation pipe is, the upper side surface is connected with the front side surface through an arc surface, the upper side surface is connected with the rear side surface through an arc surface, the front side surface is connected with the rear side surface through an arc surface, so that the collecting pipe forms a closed structure, the rear side surface is of an outward convex structure with a certain radian, negative pressure pipe connecting ports are arranged at positions, not in the spindle positions, of the collecting pipe and are communicated with the negative pressure pipes, a collecting notch is arranged on the upper side surface of the collecting pipe at each spindle position and is of an axisymmetric structure, the left side of the collecting notch is a right convex arc, the right side of the collecting notch is a left convex arc, so that the caliber of the collecting notch is firstly reduced and then slightly increased, a collecting ring is sleeved on the collecting pipe corresponding to each spindle position, the collecting ring completely covers the air suction notch, the collecting ring is a woven fabric woven from warp yarns and weft yarns, and a certain pore space is kept between the warp yarns and the weft yarns, thereby the gathering ring has certain air permeability, and the degree of air permeability is determined by the size of the pores between the warp yarns and the weft yarns, one side of the output lower roller is provided with a support rod, the gathering ring is simultaneously sleeved on the output lower roller and the support rod, the tension of the support rod is adjustable within a certain range, the gathering ring is always sleeved on the gathering tube and the output lower roller in a tensioning state by adjusting the tension of the support rod, a negative pressure air flow guiding device is arranged above the gathering tube, the lower side surface of the negative pressure air flow guiding device is provided with a gathering area notch, the structure of the gathering area notch is the same as that of the gathering notch, the area of the gathering area notch is larger than that of the gathering notch, the front side edge of the gathering area notch is consistent with the front side edge of the lower side surface of the negative pressure air flow guiding device, the rear side edge of the gathering area notch is consistent with the rear side edge of the lower side surface of the negative pressure air flow guiding device, and a cylinder, a right front roller arranged at the front side edge at the right side of the groove opening of the gathering area, a left rear roller arranged at the rear side edge at the left side of the groove opening of the gathering area, a right rear roller arranged at the rear side edge at the right side of the groove opening of the gathering area, a left crawler belt rotating in the front-back direction and a right crawler belt rotating in the front-back direction and arranged at the left side edge of the lower side surface of the negative pressure airflow guiding device, a left air inlet hole group arranged at the left side surface of the negative pressure airflow guiding device and comprising 3-8 left air inlet holes, wherein the left air inlet holes are communicated with the groove opening of the gathering area, the left air inlet holes are linearly distributed from front to back in an inclined downward straight line along the length direction of the left side surface of the negative pressure airflow guiding device, or the left air inlet holes are linearly distributed from front to back along the length direction of the right side surface of the negative pressure airflow guiding device, the distance between the adjacent left air inlet holes from front to back is gradually reduced along the length direction of the left side surface of the negative pressure air flow guiding device, a right air inlet hole group is arranged on the right side surface of the negative pressure air flow guiding device and comprises 3-8 right air inlet holes, the right air inlet holes are communicated with the gathering area groove opening, each right air inlet hole is linearly distributed from front to back along the length direction of the right side surface of the negative pressure air flow guiding device, or each left air inlet hole is linearly distributed from front to back in an inclined downward manner along the length direction of the left side surface of the negative pressure air flow guiding device, the hole diameter of each right air inlet hole from front to back is gradually reduced along the length direction of the right side surface of the negative pressure air flow guiding device, the distance between the adjacent right air inlet holes from front to back is gradually reduced along the length direction of the right side surface of the negative pressure air flow guiding device, the number of the left air inlet holes in the left air inlet hole group is, the arrangement of the left air inlet holes in the left air inlet hole group in the length direction of the left side face of the negative pressure air flow guiding device is completely the same as the arrangement of the right air inlet holes in the right air inlet hole group in the length direction of the right side face of the negative pressure air flow guiding device, the vertical height of the left air inlet hole group on the left side face of the negative pressure air flow guiding device is larger than that of the right air inlet hole group on the right side face of the negative pressure air flow guiding device, or the vertical height of the left air inlet hole group on the left side face of the negative pressure air flow guiding device is smaller than that of the right air inlet hole group on the right side face of the negative pressure air flow guiding device.
Preferably, the rear lower drafting roller, the middle lower drafting roller, the front lower drafting roller and the output lower roller comprise roller shafts, the roller shafts are solid cylinders made of iron or steel, roller sleeves are tightly sleeved outside the roller shafts, the material of the roller sleeves is completely the same as that of the middle roller shaft, and the outer roller sleeves are fixedly connected with the roller shafts in an integrated mode.
Preferably, the rear upper pressing rubber roller, the middle upper pressing rubber roller, the front upper pressing rubber roller and the output upper pressing rubber roller comprise rubber roller shafts, the rubber roller shafts are solid cylinders made of iron or steel, rubber roller sleeves are tightly sleeved outside the rubber roller shafts and are made of rubber materials, and the rubber roller sleeves are connected with the rubber roller shafts through rolling bearings.
Preferably, the first motor is a variable frequency motor, or a servo motor, or a permanent magnet synchronous motor; the second motor is a servo motor.
Preferably, the pressurizing assembly is a spring pressurizing or pneumatic pressurizing structure.
Preferably, the stationary cross-bar is a solid cylindrical structure.
Preferably, the collecting pipe is a hollow structure with an L-shaped section.
Preferably, the negative pressure air flow guiding device is of a rectangular parallelepiped structure.
Preferably, the left crawler belt and the right crawler belt are both woven fabrics.
When the spinning method of the high-efficiency integrated spinning device is used, the pressurizing assembly presses downwards to enable the rear upper pressing rubber roll and the rear lower drafting roller of the rear drafting roller pair to be tightly pressed, then the rear holding jaw is formed, the middle upper pressing rubber roll and the middle lower drafting roller of the middle drafting roller pair to be tightly pressed, then the middle holding jaw is formed, the front upper pressing rubber roll and the front lower drafting roller of the front drafting roller pair are tightly pressed, then the front holding jaw is formed, the secondary pressurizing assembly presses downwards to enable the output upper rubber roll and the output lower roller of the output roller pair to be tightly pressed, then the twist-blocking output jaw is formed, the short fiber roving is fed into the drafting system, at the moment, the short fiber roving is held and held by the rear holding jaw of the rear drafting roller pair, the roving in the rear holding jaw and the middle holding jaw is subjected to the drafting effect of the rear drafting zone, and the roving residual feeding more than 85% of the roving is obtained Short fiber bundles with different degrees are converted into fast movement which is consistent with a middle drafting roller pair from slow movement which is consistent with the middle drafting roller pair under the drafting action of a back drafting zone, so that the fibers are converted into a straight state from a bent state, straight finishing before large-range drafting of roving is realized, or the fibers slide mutually to generate a drafting action, the linear density of the fed roving is reduced, the short fiber bundles which are held and output by a middle holding jaw are then held by a front holding jaw, short fiber strands with the twist of less than 5% of the fed roving are obtained between the middle holding jaw and the front holding jaw under the drafting action of the front drafting zone, and the fibers in the short fiber bundles are converted into fast movement which is consistent with the front drafting roller pair from slow movement which is consistent with the middle drafting roller pair under the drafting action of the front drafting zone, thereby leading the fibers to be converted from a bending state to a straightening state and then to mutually slide among the fibers to generate a drafting effect, or leading the fibers to directly mutually slide to generate a drafting effect, further realizing the reduction of the linear density of the fed short fiber bundle, leading the short fiber strands output by the middle holding jaw to be held by the twisting-resistant output jaw, leading the twisting degree of the spun yarn to be incapable of being upwards transferred by the twisting-resistant output jaw, leading the short fiber strands to be subjected to the finishing drafting effect and the gathering effect of the gathering system between the front holding jaw and the twisting-resistant output jaw to obtain short fiber columns with the twisting degree which is improved by more than 50 percent relative to the short fiber strands, leading the short fiber strands output by the front holding jaw to enter the notch of the gathering area through the front side edge of the notch of the gathering area on the lower side surface of the negative pressure airflow guiding device under the gathering effect of the gathering, the short fiber strips in the notch of the collecting area are subjected to negative pressure collecting action, the output lower roller rotates to drive the collecting ring sleeved on the output lower roller to synchronously rotate, so that the short fiber strips are collected under the support of the collecting ring, and the short fiber strips are stably supported and collected in a state of keeping relative rest with the collecting ring due to the rotation of the collecting ring The gathering notch enters the gathering pipe, so that a finishing action air flow field is formed for the fed short fiber strands in the gathering area notch, for the gathering action air flow field, when the spun yarn is Z-twisted yarn, the vertical height of the left air inlet hole group on the left side surface of the negative pressure air flow guiding device is larger than that of the right air inlet hole group on the right side surface of the negative pressure air flow guiding device, the left air inlet holes are arranged in straight line distribution from front to back in an inclined downward manner along the length direction of the left side surface of the negative pressure air flow guiding device, each right air inlet hole is in straight line distribution from front to back along the length direction of the right side surface of the negative pressure air flow guiding device, the air flow entering from the left air inlet hole generates a driving action from left to right on the upper part of the short fiber strands, and the air flow entering from the right air inlet hole generates a driving action from right to left on the lower part of the, thereby leading the short fiber strands to rotate anticlockwise under the combined action of the short fiber strands and further leading the aggregation airflow field to realize the Z-direction twisting aggregation of the short fiber strands, leading the width of the short fiber strands to be reduced under the aggregation action, leading the edge fibers to be continuously gathered and transferred towards the middle, leading the finishing airflow field to generate the straight action along the movement direction of the short fiber strands on the edge fibers in the process of leading the edge fibers towards the middle, leading the edge fibers to be continuously transferred towards the middle in a straight state, and leading the aperture of each left air inlet hole and each right air inlet hole to be gradually reduced and the space between the adjacent left air inlet holes and the right air inlet holes to be gradually reduced along the length direction of the left side surface of the negative pressure airflow guiding device, thereby leading the aggregation force of the Z-direction aggregation of the short fiber strands to be reduced but the twisting aggregation degree to be increased, then realizing the gradual gathering process of the gradually gathered and narrowed short fiber strands, and then realizing the self-adaptive gathering process in the gradual narrowing process of the short fiber strands; when the spun yarn is S-twisted yarn, the vertical height of the left air inlet hole group on the left side surface of the negative pressure airflow guiding device is smaller than the vertical height of the right air inlet hole group on the right side surface of the negative pressure airflow guiding device, the right air inlet holes are arranged to be linearly distributed along the length direction of the left side surface of the negative pressure airflow guiding device from front to back in an inclined downward manner, each left air inlet hole is linearly distributed along the length direction of the right side surface of the negative pressure airflow guiding device from front to back, the airflow entering from the right air inlet holes generates a driving effect from right to left on the upper part of the short fiber strand, the airflow entering from the left air inlet holes generates a driving effect from left to right on the lower part of the short fiber strand, so that the short fiber strand generates clockwise rotation under the combined action of the left air inlet holes and the S-direction twisting of the short fiber strand by the aggregation action airflow field, under the gathering action, the width of the short fiber strand is reduced, the edge fibers are gathered and transferred towards the middle continuously, the finishing action airflow field generates a straight action on the edge fibers along the movement direction of the short fiber strand in the process of gathering and transferring the edge fibers towards the middle, so that the edge fibers are transferred towards the middle continuously in a straight state, the gathering force of S-direction twisting gathering of the short fiber strand is reduced but the gathering twist is increased along with the gradual reduction of the apertures of the left air inlet holes and the right air inlet holes and the gradual reduction of the distance between the adjacent left air inlet holes and the right air inlet holes along the length direction of the left side surface of the negative pressure airflow guiding device, the gradually gathering process of the gradually narrowed short fiber strand is realized, and the self-adapting gathering process is realized in the process of gradually narrowing the short fiber strand, the obtained short fiber column is output from the notch of the gathering area through the rear side edge of the notch of the gathering area on the lower side surface of the negative pressure airflow guiding device, so that the obtained short fiber column leaves the gathering area, is held and output by the twist stopping output jaw, and then is directly subjected to the twisting action of spinning and twisting to obtain the required short fiber yarn.
The principle of the high-efficiency compact spinning device and the spinning method of the invention is that: the device is characterized in that an independently driven output roller is arranged at the front part of a front drawing roller, a negative pressure air suction system comprising a negative pressure pipe and a gathering ring sleeved on the negative pressure pipe and the output lower roller is additionally arranged between the front drawing roller and the output lower roller, gathering notches are formed in the gathering pipe, a negative pressure air flow guiding device is arranged above the gathering pipe, the negative pressure air flow guiding device is of a hollow cuboid structure with an open lower end, rollers capable of freely rotating are arranged on the front side and the rear side of the lower end of the negative pressure air flow guiding device, tracks capable of freely rotating back and forth are arranged on the left side and the right side of the lower end of the negative pressure air flow guiding device, so that the negative pressure air flow guiding device is in close contact with the rotating gathering ring, a left air inlet hole group and a right air inlet hole group which are symmetrically arranged in a left-right mode and have unequal distances from front to back are respectively arranged on the left side and the right side of the negative pressure air flow guiding device, and, thereby make under the effect of negative pressure air current in the negative pressure pipe, external air current is in proper order by left air inlet group, gather the circle, gather the notch and enter into and gather intraductally, simultaneously in proper order by right air inlet group, gather the circle, gather the notch and enter into and gather intraductally, thereby form S to or Z to vortex air current in negative pressure air current guiding device 'S hollow structure, then realize twisting to the fibre whisker strip in it and gather the effect, thereby show and improve and gather the effect, then improve negative pressure air current' S utilization efficiency, realize high-efficient gathering.
Has the advantages that: the high-efficiency compact spinning device and the spinning method of the invention realize the twisting and compact function with self-adaptive strength to the fiber strips in the compact area by additionally arranging the negative pressure airflow guiding device which can guide the airflow to generate the vortex airflow with the same twist direction as the twist of the spun yarn, thereby obviously improving the compact effect, further improving the utilization efficiency of the negative pressure airflow and realizing high-efficiency compact.
Drawings
FIG. 1 is a schematic view showing the construction of a high-efficiency compact spinning apparatus according to the present invention;
the device comprises a rear stretching roller pair, a middle stretching roller pair, a front stretching roller pair, a middle stretching roller pair, a front stretching roller pair, a back stretching roller pair, a middle stretching roller pair, a front stretching roller pair, a back.
Detailed Description
The following examples further illustrate the present invention but are not to be construed as limiting the invention. Modifications and substitutions to methods, procedures, or conditions of the invention may be made without departing from the spirit and substance of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
Example 1
The high-efficiency gathering spinning device comprises a drafting system, the drafting system comprises a rear drafting roller pair 1, a middle drafting roller pair 2 and a front drafting roller pair 3, the rear drafting roller pair 1 comprises a rear lower drafting roller and a rear upper pressing rubber roller, the middle drafting roller pair 2 comprises a middle lower drafting roller and a middle upper pressing rubber roller, the front drafting roller pair 3 comprises a front lower drafting roller and a front upper pressing rubber roller, an output roller pair is additionally arranged at the front part of the front drafting roller pair, the output roller pair comprises an output lower roller 5 and an output upper rubber roller 4, the rear lower drafting roller, the middle lower drafting roller, the front lower drafting roller and the output lower roller 5 have the same structure, the rear upper pressing rubber roller, the middle upper pressing rubber roller, the front upper pressing rubber roller and the output upper rubber roller have the same structure, the diameters of the roller shafts of the rear lower drafting roller, the middle lower drafting roller and the front lower drafting roller are the same and are larger than the diameter of the roller shaft of the output lower roller 5, the diameters of the middle rubber roll shafts of the rear upper pressing rubber roll, the middle upper pressing rubber roll, the front upper pressing rubber roll and the output upper rubber roll 4 are the same, the diameters of the rubber roll sleeves of the rear upper pressing rubber roll, the middle upper pressing rubber roll, the front upper pressing rubber roll and the output upper rubber roll are the same, the roller shafts of the front lower drafting rollers are driven to rotate by a first motor, the roller shafts of the middle lower drafting rollers and the roller shafts of the front lower drafting rollers are in transmission connection through a first gear set, the rotating speed of the roller shaft of the middle lower drafting roller is less than that of the roller shaft of the front lower drafting roller, the roller shaft of the rear lower drafting roller is in transmission connection with the roller shaft of the middle lower drafting roller through a second gear set, the rotating speed of the roller shaft of the rear lower drafting roller is less than that of the roller shaft of the middle lower drafting roller, the roller shaft of the output lower roller 5 is driven by a second motor to rotate, and the rotating linear speed of the roller sleeve of the output lower roller 5 is greater than that of the roller sleeve of the front lower drafting roller; the rear upper pressing rubber roll, the middle upper pressing rubber roll and the front upper pressing rubber roll are embedded in the pressurizing assembly, the rear part of the pressurizing assembly is fixed on the fixed cross rod, the fixed cross rod is fixed on the roller seat, the front part of the pressurizing assembly is provided with a secondary pressurizing device, the rear part of the secondary pressurizing device is connected with the front part of the pressurizing assembly through a rotating part, the secondary pressurizing assembly is of a spring pressurizing structure, and the rubber roll shaft of the output upper rubber roll 4 is embedded in the secondary pressurizing assembly so as to realize the fixed installation of the output upper rubber roll 4; a gathering system is arranged between the front drafting roller pair 3 and the output roller pair, the gathering system comprises a gathering pipe 6, the gathering pipe 6 is arranged between the front lower drafting roller and the output lower roller 5, and the gathering pipe 6, the front lower drafting roller and the output lower roller 5 are kept on an inclined plane; the collecting pipe 6 comprises an upper side surface, a front side surface and a rear side surface, the upper side surface of the collecting pipe 6 is of a plane structure, the upper side surface is connected with the front side surface through an arc surface, the upper side surface is connected with the rear side surface through an arc surface, the front side surface is connected with the rear side surface through an arc surface, so that the collecting pipe is of a closed structure, the rear side surface is of an arc-shaped outwards-protruding structure, negative pressure pipe connecting ports are formed at positions, which are not ingot positions, of the collecting pipe 6 at equal intervals, the negative pressure pipe connecting ports are communicated and connected with negative pressure pipes, a collecting notch is formed in the upper side surface of the collecting pipe 6 at each ingot position, the collecting notches are of an axisymmetric structure, the left side of each collecting notch is a right-convex arc line, the right side of each collecting notch is a left-convex arc line; a collecting ring 7 is sleeved on the collecting pipe 6 corresponding to each spindle position, the collecting ring 7 completely covers an air suction notch, the collecting ring 7 is a woven fabric woven by warp yarns and weft yarns, and a gap is reserved between the warp yarns and the weft yarns, so that the collecting ring 7 has air permeability, the air permeability is determined by the size of the gap between the warp yarns and the weft yarns, a supporting rod 8 is arranged on one side of the output lower roller 5, the collecting ring 7 is sleeved on the output lower roller 5 and the supporting rod 8 at the same time, and the collecting ring 7 is sleeved on the collecting pipe 6 and the output lower roller 5 in a tensioned state all the time by adjusting the tension of the supporting rod 8; a negative pressure airflow guiding device 9 is arranged above the gathering pipe 6, a gathering area notch is arranged on the lower side surface of the negative pressure airflow guiding device 9, the structure of the gathering area notch is the same as that of the gathering notch, the area of the gathering area notch is larger than that of the gathering notch, the front side edge of the gathering area notch is consistent with that of the lower side surface of the negative pressure airflow guiding device 9, the rear side edge of the gathering area notch is consistent with that of the lower side surface of the negative pressure airflow guiding device 9, a left front roller is arranged on the front side edge of the lower side surface of the negative pressure airflow guiding device 9, which is positioned on the left side of the gathering area notch, a right front roller is arranged on the front side edge of the right side of the gathering area notch, a left rear roller is arranged on the rear side of the left side of the gathering area notch, a right rear roller is arranged on the rear side edge of the right side of the gathering area notch, a right crawler belt which rotates in the front-back direction is arranged on the right side, a left air inlet hole group is arranged on the left side surface of the negative pressure airflow guiding device 9 and comprises 3-8 left air inlet holes 10, the left air inlet holes 10 are communicated with the gathering area groove, each left air inlet hole 10 is linearly distributed along the length direction of the left side surface of the negative pressure airflow guiding device 9 from front to back in an inclined downward manner, or each left air inlet hole 10 is linearly distributed along the length direction of the right side surface of the negative pressure airflow guiding device 9 from front to back in a horizontal manner, the aperture of each left air inlet hole 10 from front to back along the length direction of the left side surface of the negative pressure airflow guiding device 9 is gradually reduced, the distance between adjacent left air inlet holes 10 from front to back along the length direction of the left side surface of the negative pressure airflow guiding device 9 is gradually reduced, a right air inlet hole group is arranged on the right side surface of the negative pressure airflow guiding device 9 and comprises 3-8 right air inlet holes, the right air inlet holes 11 are communicated with the gathering area groove opening, the right air inlet holes 11 are distributed along the length direction of the right side surface of the negative pressure air flow guiding device 9 from front to back in a horizontal straight line, or the right air inlet holes 11 are distributed along the length direction of the left side surface of the negative pressure air flow guiding device 9 from front to back in a straight line which is inclined downwards, the aperture of each right air inlet hole 11 along the length direction of the right side surface of the negative pressure air flow guiding device 9 from front to back is gradually reduced, the distance between the adjacent right air inlet holes 11 along the length direction of the right side surface of the negative pressure air flow guiding device 9 from front to back is gradually reduced, the number of the left air inlet holes 10 in the left air inlet hole group is completely the same as that of the right air inlet holes 11 in the right air inlet hole group in the left air inlet hole group in the length direction of the negative pressure air flow guiding device 9, the arrangement of the left air inlet holes 10 in the left air inlet hole group is completely the, the vertical height of the left air inlet group on the left side face of the negative pressure air flow guiding device 9 is greater than the vertical height of the right air inlet group on the right side face of the negative pressure air flow guiding device 9, or the vertical height of the left air inlet group on the left side face of the negative pressure air flow guiding device 9 is less than the vertical height of the right air inlet group on the right side face of the negative pressure air flow guiding device 9.
The rear lower drafting roller, the middle lower drafting roller, the front lower drafting roller and the output lower roller respectively comprise a roller shaft, the roller shaft is in a solid cylinder shape made of iron or steel, a roller sleeve is tightly sleeved outside the roller shaft, the material of the roller sleeve is completely the same as that of the middle roller shaft, and the outer roller sleeve is fixedly connected with the roller shaft in an integrated manner.
The back upper pressing rubber roll, the middle upper pressing rubber roll, the front upper pressing rubber roll and the output upper rubber roll all comprise rubber roll shafts, the rubber roll shafts are solid cylinders made of iron or steel, rubber roll sleeves are tightly sleeved outside the rubber roll shafts and are made of rubber materials, and the rubber roll sleeves are connected with the rubber roll shafts through rolling bearings.
The first motor is a variable frequency motor, a servo motor or a permanent magnet synchronous motor; the second motor is a servo motor.
The pressurizing assembly is a spring pressurizing or pneumatic pressurizing structure.
The fixed cross bar is of a solid cylindrical structure.
The collecting pipe 6 is a hollow structure with an L-shaped section.
The negative pressure air flow guiding device 9 is of a cuboid structure.
The left crawler belt and the right crawler belt are both woven fabrics.
When the spinning method of the high-efficiency integrated spinning device is used, the pressurizing assembly presses downwards to enable the rear upper pressing rubber roll of the rear drawing roller pair 1 and the rear lower drawing roller to be tightly pressed, then the rear holding jaw is formed, the middle drawing roller pair 2 is tightly pressed between the middle upper pressing rubber roll and the middle lower drawing roller, then the middle holding jaw is formed, the front upper pressing rubber roll of the front drawing roller pair 3 and the front lower drawing roller are tightly pressed, then the front holding jaw is formed, the secondary pressurizing assembly presses downwards to enable the output upper rubber roll 4 and the output lower roller 5 of the output roller pair to be tightly pressed, then the twisting-blocking output jaw is formed, the short fiber roving is fed into the drawing system, the short fiber roving is held by the rear holding jaw of the rear drawing roller pair 1, the short fiber roving is held by the middle holding jaw, and the drawing action of the rear feeding drawing area between the rear holding jaw and the middle holding jaw is subjected to obtain the coarse roving with residual feeding The short fiber bundle with more than 85% twist of the yarn is converted from slow motion consistent with the back drafting roller pair 1 to fast motion consistent with the middle drafting roller pair 2 under the drafting action of the back drafting zone, so that the fiber in the roving is converted from a bending state to a straightening state, the roving is straightened in a large-range drafting mode, or the fiber slides mutually to generate a drafting action, the linear density of the fed roving is reduced, the short fiber bundle output by the middle holding jaw is held by the front holding jaw, short fiber strands with less than 5% twist of the fed roving are obtained under the drafting action of the front drafting zone between the middle holding jaw and the front holding jaw, and under the drafting action of the front drafting zone, the slow motion consistent with the middle drafting roller pair 2 of the short fiber bundle is converted into fast motion consistent with the front drafting roller pair 3, thereby leading the fibers to be converted from a bending state to a straightening state and then to mutually slide among the fibers to generate a drafting effect, or leading the fibers to directly mutually slide to generate a drafting effect, further realizing the reduction of the linear density of the fed short fiber bundle, leading the short fiber strands output by the middle holding jaw to be held by the twisting-resistant output jaw, leading the twisting degree of the spun yarn to be incapable of being upwards transferred by the twisting-resistant output jaw, leading the short fiber strands to be subjected to the finishing drafting effect and the gathering effect of the gathering system between the front holding jaw and the twisting-resistant output jaw to obtain short fiber columns with the twisting degree which is improved by more than 50 percent relative to the short fiber strands, leading the short fiber strands output by the front holding jaw to enter the notch of the gathering area through the front side edge of the notch of the gathering area on the lower side surface of the negative pressure airflow guiding device 9 under the gathering effect of the gathering, the short fiber strands in the notch of the collecting area are subjected to negative pressure collecting action, the output lower roller 5 rotates to drive the collecting ring 7 sleeved on the output lower roller to synchronously rotate, so that the short fiber strands are collected under the support of the collecting ring 7, and the short fiber strands are stably supported and collected under the state of keeping relative rest with the collecting ring 7 due to the rotation of the collecting ring 7, at the moment, negative pressure airflow generated in a negative pressure fan enters the hollow collecting pipe 6 through a negative pressure pipeline, so that external airflow enters the collecting pipe 6 through the right air inlets 11, the left air inlets 10 and the collecting notch of the collecting ring 7 in sequence, thereby forming a collecting action airflow field for the fed short fiber strands in the notch of the collecting area, and meanwhile, the external airflow sequentially passes through the front side edge, the front side edge and the collecting notch of the collecting area on the lower side surface of the negative pressure airflow guiding device 9, The gathering ring 7 and gathering slot mouth enter into the gathering pipe 6, thus forming a finishing action air flow field for the fed short fiber strands in the gathering zone slot mouth, for the gathering action air flow field, when the spun yarn is Z twisted yarn, the vertical height of the left air inlet hole group on the left side surface of the negative pressure air flow guiding device 9 is larger than the vertical height of the right air inlet hole group on the right side surface of the negative pressure air flow guiding device 9, and the left air inlet holes 10 are arranged to be linearly distributed from front to back in an inclined downward straight line along the length direction of the left side surface of the negative pressure air flow guiding device 9, each right air inlet hole 11 is linearly distributed from front to back along the length direction of the right side surface of the negative pressure air flow guiding device 9, at the moment, the air flow entering from the left air inlet hole 10 generates a driving action from left to right on the upper part of the short fiber strands, the air flow entering from the right air inlet hole 11 generates a driving action from right to left on the, thereby, the short fiber strand is rotated counterclockwise under the combined action of the short fiber strand and the short fiber strand, then the gathering action airflow field realizes the Z-direction twisting gathering of the short fiber strand, under the gathering action, the width of the short fiber strand is reduced, the edge fiber is gathered and transferred to the middle continuously, in the process of gathering and transferring the edge fiber to the middle, the finishing action airflow field generates the straight action along the moving direction of the short fiber strand on the edge fiber, thereby the edge fiber is transferred to the middle continuously in the straight state, and along with the gradual reduction of the aperture of each left air inlet hole 10 and each right air inlet hole 11 from front to back and the gradual reduction of the space between the adjacent left air inlet holes 10 and the right air inlet holes 11 along the length direction of the left side surface of the negative pressure airflow guiding device 9, the gathering force for the Z-direction twisting gathering of the short fiber strand is reduced but the gathering degree is increased, then realizing the gradual gathering process of the gradually gathered and narrowed short fiber strands, and then realizing the self-adaptive gathering process in the gradual narrowing process of the short fiber strands; when the spun yarn is S-twisted yarn, the vertical height of the left air inlet hole group on the left side surface of the negative pressure airflow guiding device 9 is smaller than the vertical height of the right air inlet hole group on the right side surface of the negative pressure airflow guiding device 9, the right air inlet holes 11 are arranged to be linearly distributed along the length direction of the left side surface of the negative pressure airflow guiding device 9 from front to back in an inclined downward manner, each left air inlet hole 10 is linearly distributed along the length direction of the right side surface of the negative pressure airflow guiding device 9 from front to back, the airflow entering from the right air inlet holes 11 generates a driving effect from right to left on the upper part of the short fiber strand, the airflow entering from the left air inlet holes 10 generates a driving effect from left to right on the lower part of the short fiber strand, so that the short fiber strand generates clockwise rotation under the combined action of the left air inlet holes and the right air inlet hole, and the S-twisted short fiber strand is realized by the aggregation action airflow field, under the gathering action, the width of the short fiber strand is reduced, the edge fiber is gathered and transferred towards the middle continuously, in the process of gathering and transferring the edge fiber towards the middle, the finishing action airflow field generates a straight action on the edge fiber along the motion direction of the short fiber strand, so that the edge fiber is transferred towards the middle continuously in a straight state, the apertures of the left air inlet holes 10 and the right air inlet holes 11 are gradually reduced from front to back along the length direction of the left side surface of the negative pressure airflow guiding device 9, the distance between the adjacent left air inlet holes 10 and the right air inlet holes 11 is gradually reduced, the gathering force for twisting and gathering the short fiber strand in the S direction is reduced, the gathering degree is increased, the gradual gathering process of the gradually gathered short fiber strand is realized, and the self-adapting gathering process is realized in the process of gradually narrowing the short fiber strand, the obtained short fiber column is output from the notch of the gathering area through the rear side edge of the notch of the gathering area on the lower side surface of the negative pressure airflow guiding device 9, so that the obtained short fiber column leaves the gathering area, is held and output by the twist stopping output jaw, and then is directly acted by the twist of spinning and twisting to obtain the required short fiber yarn.
Claims (10)
1. The high-efficiency gathering spinning device is characterized by comprising a drafting system, wherein the drafting system comprises a rear drafting roller pair (1), a middle drafting roller pair (2) and a front drafting roller pair (3), the rear drafting roller pair (1) comprises a rear lower drafting roller and a rear upper pressing rubber roll, the middle drafting roller pair (2) comprises a middle lower drafting roller and a middle upper pressing rubber roll, the front drafting roller pair (3) comprises a front lower drafting roller and a front upper pressing rubber roll, an output roller pair is additionally arranged at the front part of the front drafting roller pair, the output roller pair comprises an output lower roller (5) and an output upper rubber roll (4), the structures of the rear lower drafting roller, the middle lower drafting roller, the front lower drafting roller and the output lower roller (5) are the same, the structures of the rear upper pressing rubber roll, the middle upper pressing roller, the front upper pressing rubber roll and the output upper rubber roll are the same, and the structures of the rear lower drafting roller, the middle lower, The diameters of the roller shafts of the middle lower drafting roller and the front lower drafting roller are the same and are larger than the diameter of the roller shaft of the output lower roller (5), the diameters of the middle rubber roller shafts of the rear upper pressing rubber roller, the middle upper pressing rubber roller, the front upper pressing rubber roller and the output upper rubber roller (4) are the same, the diameters of the rubber roller sleeves of the rear upper pressing rubber roller, the middle upper pressing rubber roller, the front upper pressing rubber roller and the output upper rubber roller are the same, the roller shaft of the front lower drafting roller is driven by a first motor to rotate, the roller shaft of the middle lower drafting roller and the roller shaft of the front lower drafting roller are in transmission connection through a first gear set, the rotating speed of the roller shaft of the middle lower drafting roller is smaller than that of the front lower drafting roller, the roller shaft of the rear lower drafting roller and the roller shaft of the middle lower drafting roller are in transmission connection through a second gear set, and the rotating speed of the roller shaft of the rear lower drafting roller is smaller than that of the roller shaft of the middle lower, the roller shaft of the output lower roller (5) is driven by a second motor to rotate, and the rotating linear speed of the roller sleeve of the output lower roller (5) is greater than that of the roller sleeve of the front lower drafting roller; the rear upper pressing rubber roll, the middle upper pressing rubber roll and the front upper pressing rubber roll are embedded in the pressurizing assembly, the rear part of the pressurizing assembly is fixed on the fixed cross rod, the fixed cross rod is fixed on the roller seat, the front part of the pressurizing assembly is provided with a secondary pressurizing device, the rear part of the secondary pressurizing device is connected with the front part of the pressurizing assembly through a rotating part, the secondary pressurizing assembly is of a spring pressurizing structure, and the rubber roll shaft of the output upper rubber roll (4) is embedded in the secondary pressurizing assembly so as to realize the fixed installation of the output upper rubber roll (4); a gathering system is arranged between the front drafting roller pair (3) and the output roller pair, the gathering system comprises a gathering pipe (6), the gathering pipe (6) is arranged between the front lower drafting roller and the output lower roller (5), and the gathering pipe (6), the front lower drafting roller and the output lower roller (5) are kept on an inclined plane; the collecting pipe (6) comprises an upper side surface, a front side surface and a rear side surface, the upper side surface of the collecting pipe (6) is of a plane structure, the upper side surface is connected with the front side surface through an arc surface, the upper side surface is connected with the rear side surface through an arc surface, the front side surface is connected with the rear side surface through an arc surface, so that the collecting pipe forms a closed structure, the rear side surface is of an arc-shaped outwards-protruding structure, negative pressure pipe connecting ports are formed at positions, which are not spindle positions, of the collecting pipe (6) at equal intervals, the negative pressure pipe connecting ports are connected with the negative pressure pipes, collecting notches are formed in the upper side surface of the collecting pipe (6) at each spindle position, the collecting notches are of an axially symmetric structure, the left sides of the collecting notches are arc lines which are convex right, the right sides of the collecting notches are arc lines which are convex left, so that the; a gathering ring (7) is sleeved on the gathering tube (6) corresponding to each spindle position, the gathering ring (7) completely covers an air suction notch, the gathering ring (7) is a woven fabric woven by warp yarns and weft yarns, and pores are reserved between the warp yarns and the weft yarns, so that the gathering ring (7) has air permeability, the air permeability is determined by the size of the pores between the warp yarns and the weft yarns, a supporting rod (8) is arranged on one side of the output lower roller (5), the gathering ring (7) is sleeved on the output lower roller (5) and the supporting rod (8) at the same time, and the gathering ring (7) is sleeved on the gathering tube (6) and the output lower roller (5) in a tensioning state all the time by adjusting the tension of the supporting rod (8); a negative pressure air flow guiding device (9) is arranged above the gathering pipe (6), a gathering area notch is arranged on the lower side surface of the negative pressure air flow guiding device (9), the structure of the gathering area notch is the same as that of the gathering notch, the area of the gathering area notch is larger than that of the gathering notch, the front side of the gathering area notch is consistent with the front side of the lower side surface of the negative pressure air flow guiding device (9), the rear side of the gathering area notch is consistent with the rear side of the lower side surface of the negative pressure air flow guiding device (9), a left front roller is arranged on the front side of the lower side surface of the negative pressure air flow guiding device (9) on the left side of the gathering area notch, a right front roller is arranged on the front side of the right side of the gathering area notch, a left rear roller is arranged on the rear side of the left side of the gathering area notch, a right rear roller is arranged on the rear side of the right side of the gathering area notch, a left crawler belt roller The right side is provided with a right crawler belt which rotates in the front-back direction, the left side surface of the negative pressure airflow guiding device (9) is provided with a left air inlet hole group, the left air inlet hole group comprises 3-8 left air inlet holes (10), the left air inlet holes (10) are communicated with a gathering area notch, each left air inlet hole (10) is linearly distributed from front to back in an inclined downward manner along the length direction of the left side surface of the negative pressure airflow guiding device (9), or each left air inlet hole (10) is horizontally and linearly distributed from front to back along the length direction of the right side surface of the negative pressure airflow guiding device (9), the aperture of each left air inlet hole (10) from front to back along the length direction of the left side surface of the negative pressure airflow guiding device (9) is gradually reduced, the distance between adjacent left air inlet holes (10) from front to back along the length direction of the left side surface of the negative pressure airflow guiding device (9) is gradually reduced, the right air inlet hole group is arranged on the right side surface of the negative, the right air inlet hole group comprises 3-8 right air inlet holes (11), the right air inlet holes (11) are communicated with the notch of the gathering area, the right air inlet holes (11) are distributed in a straight line from front to back along the length direction of the right side surface of the negative pressure air flow guiding device (9), or the right air inlet holes (11) are distributed in a straight line from front to back in an inclined downward way along the length direction of the left side surface of the negative pressure air flow guiding device (9), the pore diameter of each right air inlet hole (11) from front to back along the length direction of the right side surface of the negative pressure air flow guiding device (9) is gradually reduced, the distance between adjacent right air inlet holes (11) from front to back along the length direction of the right side surface of the negative pressure air flow guiding device (9) is gradually reduced, the number of the left air inlet holes (10) in the left air inlet hole group is completely the same as that of the right air inlet holes (11) in the left air inlet hole group, the left air inlet holes (10) in the left air hole group are distributed The arrangement of the right air inlet holes (11) in the right air inlet hole group in the length direction of the right side face of the negative pressure air flow guiding device (9) is completely the same, the vertical height of the left air inlet hole group on the left side face of the negative pressure air flow guiding device (9) is larger than that of the right air inlet hole group on the right side face of the negative pressure air flow guiding device (9), or the vertical height of the left air inlet hole group on the left side face of the negative pressure air flow guiding device (9) is smaller than that of the right air inlet hole group on the right side face of the negative pressure air flow guiding device (9).
2. The high-efficiency compact spinning device according to claim 1, wherein the rear lower drafting roller, the middle lower drafting roller, the front lower drafting roller and the output lower roller all comprise roller shafts, the roller shafts are solid cylinders made of iron or steel, the roller shafts are tightly sleeved with roller sleeves, the roller sleeves are made of the same material as the middle roller shaft, and the outer roller sleeves are fixedly connected with the roller shafts in an integrated manner.
3. An efficient compact spinning device as claimed in claim 1 wherein the rear upper pressing rubber roller, the middle upper pressing rubber roller, the front upper pressing rubber roller and the output upper rubber roller each comprise a rubber roller shaft, the rubber roller shaft is in the shape of a solid cylinder made of iron or steel, a rubber roller sleeve is tightly sleeved outside the rubber roller shaft, the rubber roller sleeve is made of rubber, and the rubber roller sleeve and the rubber roller shaft are connected through a rolling bearing.
4. A high-efficiency compact spinning device according to claim 1, characterized in that the first motor is a variable frequency motor, or a servo motor, or a permanent magnet synchronous motor; the second motor is a servo motor.
5. A high efficiency compact spinning apparatus according to claim 1 wherein the pressurizing assembly is a spring pressurizing or pneumatic pressurizing structure.
6. A high efficiency compact spinning apparatus as claimed in claim 1 wherein the stationary cross bar is of solid cylindrical configuration.
7. A high-efficiency compact spinning apparatus according to claim 1, characterized in that the compact tube (6) has a hollow structure with an L-shaped section.
8. A high-efficiency compact spinning apparatus according to claim 1, wherein the negative pressure air flow guide means (9) has a rectangular parallelepiped structure.
9. A high efficiency compact spinning apparatus as claimed in claim 1 wherein the left and right tracks are woven fabrics.
10. The spinning method of the high-efficiency compact spinning device of claim 1, characterized in that, when in use, the pressurizing component is pressed downwards to tightly press the back upper pressing rubber roller and the back lower drafting roller of the back drafting roller pair (1), then a back holding jaw is formed, the middle upper pressing rubber roller and the middle lower drafting roller of the middle drafting roller pair (2) are tightly pressed, then a middle holding jaw is formed, the front upper pressing rubber roller and the front lower drafting roller of the front drafting roller pair (3) are tightly pressed, then a front holding jaw is formed, the secondary pressurizing component is pressed downwards to tightly press the output upper rubber roller (4) and the output lower roller (5) of the output roller pair, then a twist-resistant output jaw is formed, the short fiber roving is fed into the drafting system, and the short fiber is held and fed by the back holding jaw of the back drafting roller pair (1), then the short fiber roving is held by a middle holding jaw, short fiber bundles with residual feeding roving of more than 85 percent twist are obtained between the middle holding jaw and the middle holding jaw under the drafting action of a rear drafting zone, fibers in the roving are converted from slow motion consistent with a rear drafting roller pair (1) into fast motion consistent with a middle drafting roller pair (2) under the drafting action of the rear drafting zone, so that the fibers or the fibers are converted from a bending state into a straightening state, straight finishing before large-range drafting of the roving is realized, or mutual slippage between the fibers is generated to generate a drafting action, the reduction of the linear density of the fed roving is realized, the short fiber bundles held and output by the middle holding jaw are then held by a front holding jaw, short fiber strands with residual feeding roving of less than 5 percent twist are obtained between the middle holding jaw and the front holding jaw under the drafting action of the front drafting zone, under the drafting action of the front drafting zone, the fibers in the short fiber bundle are changed from slow motion which is consistent with that of the middle drafting roller pair (2) to fast motion which is consistent with that of the front drafting roller pair (3), so that the fibers are changed from a bending state to a straightening state and then slide mutually to generate a drafting action, or the fibers directly slide mutually to generate a drafting action, and then the linear density of the fed short fiber bundle is reduced, short fiber strands output by the middle holding jaw are held by the twisting-resistant output jaw, the twisting degree of the spun yarn cannot be transferred upwards by the twisting-resistant output jaw, and the short fiber strands are subjected to the finishing drafting action and the gathering action of the gathering system between the front holding jaw and the twisting-resistant output jaw to obtain short fiber columns with the twisting degree which is improved by more than 50 percent relative to the short fiber strands, under the gathering action of the gathering system, short fiber strands output from the front holding jaw enter a gathering zone notch through the front side of the gathering zone notch on the lower side surface of the negative pressure air flow guiding device (9), the short fiber strands in the gathering zone notch are gathered under the negative pressure, the output lower roller (5) rotates to drive a gathering ring (7) sleeved on the output lower roller to synchronously rotate, so that the short fiber strands are gathered under the support of the gathering ring (7), and the short fiber strands are stably supported and gathered in a state of keeping relative rest with the gathering ring (7) due to the rotation of the gathering ring (7), at the moment, negative pressure air flow generated in a negative pressure fan enters a hollow gathering pipe (6) through a negative pressure pipeline, so that external air flow sequentially passes through each right air inlet hole (11) of the negative pressure air flow guiding device (9), The left air inlet holes (10) and the gathering ring (7) enter the gathering pipe (6) from the gathering notch, thereby forming an airflow field for gathering the fed short fiber strands in the gathering notch, meanwhile, the external airflow enters the gathering pipe (6) from the front side of the gathering notch on the lower side of the negative pressure airflow guiding device (9), the gathering ring (7) and the gathering notch in sequence, thereby forming an airflow field for arranging the fed short fiber strands in the gathering notch, for the airflow field for gathering, when the spun yarn is Z-twisted yarn, the vertical height of the left air inlet hole group on the left side of the negative pressure airflow guiding device (9) is larger than that of the right air inlet hole group on the right side of the negative pressure airflow guiding device (9), and the left air inlet holes (10) are arranged to be linearly distributed from front to back in an inclined downward manner along the length direction of the left side of the negative pressure airflow guiding device (9), the right air inlets (11) are horizontally and linearly distributed from front to back along the length direction of the right side surface of the negative pressure air flow guiding device (9), at the moment, the air flow entering from the left air inlets (10) generates a left-to-right driving action on the upper part of the short fiber strand, the air flow entering from the right air inlets (11) generates a right-to-left driving action on the lower part of the short fiber strand, so that the short fiber strand rotates anticlockwise under the combined action of the air flow and the air flow, the Z-direction twisting and gathering of the short fiber strand are realized by a gathering action air flow field, the width of the short fiber strand is reduced under the gathering action, the edge fibers are continuously gathered and transferred towards the middle, and in the process of gathering and transferring the edge fibers towards the middle, the finishing action air flow field generates a straight action along the motion direction of the short fiber strand, so that the edge fibers are continuously transferred towards the middle in a straight state, the gathering force for Z-direction twisting gathering of the short fiber strands is reduced but the gathering twist is increased along with the gradual reduction of the apertures of the left air inlet holes (10) and the right air inlet holes (11) from front to back and the gradual reduction of the distances between the adjacent left air inlet holes (10) and between the adjacent right air inlet holes (11) along the length direction of the left side surface of the negative pressure air flow guiding device (9), so that the gradual gathering process of the gradually gathered and narrowed short fiber strands is realized, and the self-adaptive gathering process is realized in the gradual narrowing process of the short fiber strands; when the spun yarn is S twisted yarn, the vertical height of the left air inlet hole group on the left side surface of the negative pressure airflow guiding device (9) is smaller than the vertical height of the right air inlet hole group on the right side surface of the negative pressure airflow guiding device (9), the right air inlet holes (11) are arranged to be linearly distributed from front to back in an inclined downward manner along the length direction of the left side surface of the negative pressure airflow guiding device (9), each left air inlet hole (10) is linearly distributed from front to back along the length direction of the right side surface of the negative pressure airflow guiding device (9), the airflow entering from the right air inlet holes (11) generates a driving effect from right to left on the upper part of the short fiber strand, the airflow entering from the left air inlet holes (10) generates a driving effect from left to right on the lower part of the short fiber strand, and the short fiber strand generates clockwise rotation under the combined action of the left air inlet holes and the right air inlet holes, then the gathering action airflow field realizes S-direction twisting gathering of the short fiber strands, under the gathering action, the width of the short fiber strands is reduced, the edge fibers are gathered and transferred towards the middle continuously, in the process of gathering and transferring the edge fibers towards the middle, the finishing action airflow field generates a straight action along the moving direction of the short fiber strands on the edge fibers, so that the edge fibers are transferred towards the middle continuously in a straight state, and the distances between the adjacent left air inlet holes (10) and the right air inlet holes (11) are gradually reduced along the length direction of the left side surface of the negative pressure airflow guiding device (9) from front to back along the gradual reduction of the aperture of each left air inlet hole (10) and the aperture of each right air inlet hole (11), so that the gathering force of the S-direction twisting gathering of the short fiber strands is reduced and the twist degree is increased, and the gradual gathering process of the narrow short fiber strands is realized, and then, the self-adaptive gathering process is realized in the process that the short fiber strands are gradually narrowed, the obtained short fiber column is output from a notch of the gathering area through the rear side edge of the notch of the gathering area on the lower side surface of the negative pressure airflow guiding device (9), so that the obtained short fiber column leaves the gathering area, the short fiber column leaving the gathering area is held and output by a twisting stopping output jaw, and then the short fiber column is directly subjected to the twisting action of spinning and twisting to obtain the required short fiber yarn.
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| CN116024712A (en) * | 2023-03-02 | 2023-04-28 | 无锡学院 | Production method of health-care yarn |
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Effective date of registration: 20211011 Address after: 236700 No. 22, Yongxing West Road, Lixin Industrial Park, Bozhou City, Anhui Province Applicant after: ANHUI HANLIAN COLOUR SPIN Co.,Ltd. Address before: 214122 No. 1800, Lihu Avenue, Binhu District, Wuxi City, Jiangsu Province Applicant before: Jiangnan University |
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Denomination of invention: Efficient compact spinning device and spinning method Effective date of registration: 20230313 Granted publication date: 20211029 Pledgee: Lixin Anhui rural commercial bank Limited by Share Ltd. Pledgor: ANHUI HANLIAN COLOUR SPIN Co.,Ltd. Registration number: Y2023980034684 |