CN114381845B - Method for hooking wide rapier band yarn for drafting machine - Google Patents
Method for hooking wide rapier band yarn for drafting machine Download PDFInfo
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- CN114381845B CN114381845B CN202111563743.6A CN202111563743A CN114381845B CN 114381845 B CN114381845 B CN 114381845B CN 202111563743 A CN202111563743 A CN 202111563743A CN 114381845 B CN114381845 B CN 114381845B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds
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Abstract
A wide-width rapier band yarn hooking method for a drafting machine comprises the process that a rapier band moves to a yarn hooking point to hook yarn and returns to an original position under the drive of a rapier band motor, a track of the rapier band on the drafting machine for completing yarn hooking is divided into seven sections controlled by a machine head computer, namely a first section formed by the end position of the yarn hooking point to the yarn hooking position, a second section formed by the end position of the yarn hooking position to the starting position of a dropper, a third section formed by the starting position of the dropper to the end position of the dropper, a fourth section formed by the end position of the dropper to the starting position of a heald zone, a fifth section formed by the starting position of the heald zone to the end position of a heald zone, a sixth section formed by the end position of the heald zone to the original position of a steel buckling zone, and a seventh section formed by the starting position of the steel buckling zone are non-uniform speed-changing yarn hooking processes, wherein at least two acceleration sections are formed, yarn unhooking is prevented through different speed changes of the seven sections, and yarn threading efficiency is improved.
Description
Technical Field
The invention relates to a control technology for hooking yarns by a rapier band of a drafting machine, in particular to a method for hooking yarns by a wide rapier band of the drafting machine.
Background
A draw-in machine is an automated device for automatically threading yarn into heddles and drop wires. The existing palm threading machine capable of completing yarn threading function only by threading yarns with yarns threading wires, threading stop sheets and threading steel buckles sequentially passes through the stop sheets, the heald sheets and the steel buckles under the hooking traction of a rapier band, the yarns tend to have the technical problems of broken wires, unhooking and the like in the high-speed stretching and traction process, and the technical problems of broken wires, unhooking and the like are more serious when the yarn pulling distance is longer. In the prior art, the stretching and the traction of the rapier band hooking yarn are all processes of accelerating to the top at a constant speed and decelerating to the original point at a constant speed, and the method can solve the problems of broken yarn and unhooking easily when the rapier band is penetrated for a long distance through a wide rapier band which is required to pass through a dropper for short-width, namely, a palm penetrating machine which only needs to pass through a heald and a steel buckle is suitable for the problems of broken yarn and unhooking only for a short distance, and the technical problem is studied by a person skilled in the art.
Disclosure of Invention
The invention provides a wide rapier band yarn hooking method for a drafting machine, which is characterized in that yarns are used for drafting, a yarn-feeding stop sheet and a steel-feeding buckle are used for long-distance stretching, and breakage and unhooking are not easy to occur during traction.
A wide rapier band yarn hooking method for a drafting machine comprises the process that a rapier band moves to a yarn hooking point to hook yarn and returns to an original position under the drive of a rapier band motor, a track of the rapier band on the drafting machine for finishing yarn hooking is divided into seven sections controlled by a machine head computer, namely a first section formed by the end position of the yarn hooking point to the yarn hooking position, a second section formed by the end position of the yarn hooking position to the starting position of a dropper, a third section formed by the starting position of the dropper to the end position of the dropper, a fourth section formed by the end position of the dropper to the starting position of a heald zone, a fifth section formed by the starting position of the heald zone to the end position of a heald zone, a sixth section formed by the end position of the heald zone to the original position of a steel buckling zone, and a seventh section formed by the starting position of the steel buckling zone are non-uniform speed-changing yarn hooking processes, wherein at least two accelerating sections exist. Due to the factors of overlong length of the rapier band track of the drafting machine, discontinuous track, thin and soft yarn, elasticity and the like, the yarn or the silk thread can fall off or stretch-break when passing through the rapier band track, particularly when discontinuous places exist in the track, such as a second interval, a fourth interval and a sixth interval. According to the invention, the process that the rapier band moves to the yarn hooking point to hook the yarn and returns to the original point position under the drive of the rapier band motor is divided into seven sections, the non-uniform speed change yarn hooking and at least two acceleration sections are adopted to avoid the problem of yarn falling or stretch breaking, and the yarn falling phenomenon of the yarn and the silk yarn when passing through the track is greatly reduced.
The first section to the front part of the fourth section are acceleration stages, the tail part of the fourth section to the tail part of the fourth section are deceleration stages, the tail part of the fourth section to the front part of the sixth section are acceleration stages, the tail part of the sixth section to the tail part of the sixth section are uniform speed stages, the tail part of the sixth section to the front part of the seventh section are acceleration stages, and the front part of the seventh section to the original point are deceleration stages in the process that the rapier belt hooks to the yarn and the rapier belt motor drives the rapier belt to return to the original point. The yarn is quickly passed through the sections from the front part of the first section to the front part of the fourth section through acceleration, the sections from the front part of the fourth section to the front part of the fourth section are decelerated, unhooking is not caused by short temporary deceleration in the sections, the sections from the rear part of the fourth section to the front part of the sixth section are accelerated further on the basis of the original speed, unhooking of the yarn is avoided by continuously passing through two discontinuous regions of the sword belt track at the rear part of the fourth section and the front part of the sixth section, unhooking of the yarn is avoided by keeping the hooking amount of the yarn at a constant speed stage from the front part of the sixth section to the rear part of the sixth section, broken yarns are also avoided, the sections from the rear part of the sixth section to the front part of the seventh section are accelerated on the basis of the existing speed, the whole process is continuously passed through the sections from the rear part of the sixth section to the front part of the seventh section, unhooking or the broken yarns are avoided by three times of acceleration and twice deceleration and once keeping constant speed.
The front part of the fourth interval is any position between the ending position of the warp stop sheet and the third part of the fourth interval, the tail part of the fourth interval is any position between the third part of the whole fourth interval and the starting position of the heald eye area, the front part of the sixth interval is any position between the ending position of the heald eye area and the third part of the sixth interval, the tail part of the sixth interval is any position between the third part of the sixth interval and the starting position of the steel buckle area, and the front part of the seventh interval is any position between the starting position of the steel buckle area and the third part of the seventh interval.
The device comprises a yarn hooking point, a yarn hooking position ending position, a warp stop sheet starting position, a warp stop sheet ending position, a heald eye area starting position, a heald eye area ending position and a steel buckle area starting position, wherein the distances between the seven points and an original point position are respectively a first position, a second position, a third position, a fourth position, a fifth position, a sixth position and a seventh position, and the seven positions are converted into motor positions of a sisal belt motor.
The distance conversion relation between the motor position of the sisal belt motor and the seven points and the original point position is that 1count is equal to between 0.1mm and 0.15 mm.
The speed is changed from zero to 1330r/min to 1530r/min, the speed is reduced to 1290r/min to 1490r/min from the front part of the fourth section to 1530r/min, the speed is increased to 1620r/min to 1890r/min from the rear part of the fourth section to 18front part of the sixth section, the speed is maintained from the front part of the sixth section to the rear part of the sixth section, the speed is increased to 2844r/min to 3044r/min from the rear part of the seventh section, the speed is reduced to zero from the front part of the seventh section to the original point position.
And more than 12 warp stop sheets are arranged in the third interval to increase the pattern of the palm-penetrating fabric. And 16 droppers are arranged in the third section.
And more than 3 groups of cylinder modules are arranged in the fifth interval, and 4 cylinders are arranged on each cylinder module, so that the pattern of the palm-penetrating fabric is further increased.
According to the invention, the yarn falling-off or stretch-breaking problem is avoided through the different speed changes of the seven sections and at least two acceleration sections, so that the yarn falling-off phenomenon of the yarn and the silk thread when passing through the track is greatly reduced.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the front view of a heald machine according to the present invention;
FIG. 2 is a schematic side view of the heald machine according to the invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2B;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2 at D;
FIG. 6 is an enlarged schematic view of FIG. 2 at C;
fig. 7 is a schematic view of the positions of seven zones on the palm fiber machine according to the present invention.
Detailed description of the preferred embodiments
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Referring to fig. 1-7, a wide rapier band yarn hooking method for a drafting machine includes a process that a rapier band 5 moves to a yarn hooking point 4 to hook yarn and returns to an origin position 15 under the driving of a rapier band motor 14, a track of the rapier band 5 on the drafting machine 1 for hooking yarn is divided into seven sections controlled by a machine head computer, wherein the seven sections are respectively a first section formed from the yarn hooking point 4 to an end position 6 of the hooked yarn, a second section formed from the end position 6 of the hooked yarn to a starting position 7 of a dropper, a third section formed from the starting position 7 of the dropper to the end position 8 of the dropper, a fourth section formed from the end position 8 of the dropper to the starting position 9 of the heald zone, a fifth section formed from the starting position 9 of the heald zone to the ending position 13 of the heald zone, a sixth section formed from the ending position 13 of the heald zone to the starting position 11 of the heald zone, a seventh section formed from the starting position 11 of the heald zone to the origin position 15 of the heald zone, and the seven sections are non-uniform speed change yarn hooking processes, wherein at least two acceleration sections exist. More than 12 droppers 2 are arranged in the third interval, preferably 16 droppers are arranged in the third interval to improve the flower complexity. And more than 3 groups of cylinder modules 3 are arranged in the fifth interval, and 4 cylinders 23 are arranged on each cylinder module, so that the technical performance of threading healds through yarn cooperation in the drafting interval is improved.
In the process of hooking the gripper belt 5 to the yarn gripper belt motor 14 to drive the gripper belt to return to the original position 15, the first section to the front section of the fourth section are acceleration stages, the fourth section front section to the fourth section tail section are deceleration stages, the fourth section tail section to the front section of the sixth section are acceleration stages, the sixth section front section to the tail section of the sixth section are uniform speed stages, the sixth section tail section to the front section of the seventh section are acceleration stages, and the seventh section front section to the original position is deceleration stage. The front part of the fourth interval is any position between the end position of the drop wire and the third part of the fourth interval, the tail part of the fourth interval is any position between the third part of the whole fourth interval and the starting position of the heald eye area, the front part of the sixth interval is any position between the end position of the heald eye area and the third part of the sixth interval, the tail part of the sixth interval is any position between the third part of the sixth interval and the starting position of the steel buckle area, and the front part of the seventh interval is any position between the starting position of the steel buckle area and the third part of the seventh interval.
As further technical structures, a yarn hooking point 4, a yarn hooking position ending position 6, a drop wire starting position 7, a drop wire ending position 8, a heald eye area starting position 9, a heald eye area ending position 13 and a steel buckle area starting position 11, wherein the distances between the seven points and an origin position 15 are respectively a first position 16, a second position 17, a third position 18, a fourth position 19, a fifth position 20, a sixth position 21 and a seventh position 22, and the seven positions are converted into motor positions of the sisal belt motor. The distance conversion relation between the motor position of the sisal motor and the seven points and the original point position is that 1count is equal to between 0.1mm and 0.15 mm.
The speed is changed from zero to 1330r/min to 1530r/min, the speed is reduced to 1290r/min to 1490r/min from the front part of the fourth section to 1530r/min, the speed is increased to 1620r/min to 1890r/min from the rear part of the fourth section to 1890r/min, the speed is maintained from the front part of the sixth section to the rear part of the sixth section, the speed is increased to 2844r/min to 3044r/min from the rear part of the seventh section, the speed is reduced to zero from the front part of the seventh section to the original point. According to the invention, through different acceleration, deceleration, uniform speed and reasonable interval division, the distance position is converted into the motor position of the sisal belt motor 14, so that the problems of yarn unhooking and yarn breakage are avoided.
While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (9)
1. A wide rapier band yarn hooking method for a drafting machine, comprising the process that a rapier band (5) moves to a yarn hooking point (4) to hook yarn and returns to an original point position (15) under the drive of a rapier band motor (14), and is characterized in that: dividing a track of a rapier band (5) on a drafting machine (1) for completing yarn hooking into seven sections controlled by a machine head computer, wherein the seven sections are respectively a first section formed from a yarn hooking point (4) to a yarn hooking position ending position (6), a second section formed from a yarn hooking position ending position (6) to a dropper starting position (7), a third section formed from a dropper starting position (7) to a dropper ending position (8), a fourth section formed from a dropper ending position (8) to a heald zone starting position (9), a fifth section formed from a heald zone starting position (9) to a heald zone ending position (13), a sixth section formed from a heald zone ending position (13) to a steel buckling zone starting position (11), a seventh section formed from a steel buckling zone starting position (11) to an origin position (15), and the seven sections are non-uniform speed change hooking processes, wherein at least two acceleration sections exist.
2. A method of hooking a wide rapier band for a draw frame according to claim 1, characterized in that: the first section to the front section of the fourth section are acceleration stages, the tail section of the fourth section to the front section of the sixth section are acceleration stages, the tail section of the sixth section to the front section of the sixth section are uniform velocity stages, the tail section of the sixth section to the front section of the seventh section are acceleration stages, and the front section of the seventh section to the original point position is deceleration stage in the process that the rapier belt (5) drives the rapier belt to return to the original point position (15) after hooking the yarns.
3. A method of hooking a wide rapier band for a draw frame according to claim 2, characterized in that: the front part of the fourth interval is any position between the ending position of the warp stop sheet and the third part of the fourth interval, the tail part of the fourth interval is any position between the third part of the whole fourth interval and the starting position of the heald eye area, the front part of the sixth interval is any position between the ending position of the heald eye area and the third part of the sixth interval, the tail part of the sixth interval is any position between the third part of the sixth interval and the starting position of the steel buckle area, and the front part of the seventh interval is any position between the starting position of the steel buckle area and the third part of the seventh interval.
4. A method of hooking a wide rapier band for a draw frame according to claim 1, characterized in that: the device is characterized in that the distance between the hooking point (4), the hooking position ending position (6), the starting position (7), the stopping sheet ending position (8), the heald eye area starting position (9), the heald eye area ending position (13), the steel buckle area starting position (11) and the origin position (15) is respectively a first position (16), a second position (17), a third position (18), a fourth position (19), a fifth position (20), a sixth position (21) and a seventh position (22), and the seven positions are converted into the motor position of the sisal tape motor.
5. The method for hooking wide rapier band for a drawing-in machine according to claim 4, characterized in that: the conversion relation between the motor position of the sisal belt motor and the first position (16), the second position (17), the third position (18), the fourth position (19), the fifth position (20), the sixth position (21) and the seventh position (22) is that 1count is equal to 0.1mm to 0.15 mm.
6. A method of hooking a wide rapier band for a draw frame according to claim 1, characterized in that: the speed is changed from zero to 1330r/min to 1530r/min, the speed is reduced to 1290r/min to 1490r/min from the front part of the fourth section to 1530r/min, the speed is increased to 1620r/min to 1890r/min from the rear part of the fourth section to 18front part of the sixth section, the speed is maintained from the front part of the sixth section to the rear part of the sixth section, the speed is increased to 2844r/min to 3044r/min from the rear part of the seventh section, the speed is reduced to zero from the front part of the seventh section to the original point position.
7. A method of hooking a wide rapier band for a draw frame according to claim 1, characterized in that: and more than 12 warp stop sheets (2) are arranged in the third section.
8. A method of hooking a wide rapier band for a draw frame according to claim 1, characterized in that: and more than 3 groups of cylinder modules (3) are arranged in the fifth section, and 4 cylinders (23) are arranged on each cylinder module.
9. The method for hooking wide rapier band for a drawing-in machine according to claim 7, characterized in that: and 16 droppers are arranged in the third section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563743.6A CN114381845B (en) | 2021-12-20 | 2021-12-20 | Method for hooking wide rapier band yarn for drafting machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111563743.6A CN114381845B (en) | 2021-12-20 | 2021-12-20 | Method for hooking wide rapier band yarn for drafting machine |
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| Publication Number | Publication Date |
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| CN114381845A CN114381845A (en) | 2022-04-22 |
| CN114381845B true CN114381845B (en) | 2023-05-05 |
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| CN202111563743.6A Active CN114381845B (en) | 2021-12-20 | 2021-12-20 | Method for hooking wide rapier band yarn for drafting machine |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3874424T2 (en) * | 1987-06-18 | 1993-02-18 | Teijin Seiki Co Ltd | CHAIN FEDERATION DEVICE. |
| DE69027130T2 (en) * | 1989-02-02 | 1996-10-02 | Tsudakoma Ind Co Ltd | Method and device for automatically repairing a warp thread |
| EP2147992B1 (en) * | 2008-07-25 | 2012-11-07 | Stäubli AG Pfäffikon | Threading machine and method for threading warp yarns in elements of a weaving machine |
| CN105220326B (en) * | 2015-10-20 | 2017-03-29 | 东丽酒伊织染（南通）有限公司 | A kind of gait automatically machine and its Drafting Method |
| CN205590881U (en) * | 2016-01-25 | 2016-09-21 | 广东溢达纺织有限公司 | Automatic turn to travel mechanism |
| CN205313789U (en) * | 2016-01-29 | 2016-06-15 | 江苏工程职业技术学院 | Colour separation of intelligence subregion drawing -in machine construct |
| CN106757709B (en) * | 2017-03-10 | 2018-07-20 | 浙江日发纺织机械股份有限公司 | A kind of system of gaiting of the double sword belts of the double-station of automatic drawing-in machine |
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