CN110004537B - Method for replacing yarns of polyester spandex empty-covered yarns by one-step method - Google Patents
Method for replacing yarns of polyester spandex empty-covered yarns by one-step method Download PDFInfo
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- CN110004537B CN110004537B CN201910246846.6A CN201910246846A CN110004537B CN 110004537 B CN110004537 B CN 110004537B CN 201910246846 A CN201910246846 A CN 201910246846A CN 110004537 B CN110004537 B CN 110004537B
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- spandex
- yarns
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- yarn
- polyester
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
Abstract
The invention discloses a method for replacing yarns of polyester spandex empty-covered yarns in one-step production, which comprises the following steps of replacing yarns without polishing spandex yarns and cutting polyester POY yarns. Once the spandex silk runs, the silk detector can signal the silk cutter to cut off the polyester POY silk at the same time, and the normal protection program of the machine cannot be changed, otherwise, the normal operation of the machine is influenced. In this case, the ends of the polyester yarns and the spandex yarns must be raised again, and the surface layer of the finished empty-covered yarns has abnormal yarns, so that the abnormal yarns must be stripped, and the waste silk consumption is increased. The spandex is changed without running light, when the spandex is to be finished into a thin-skin paper tube, the fiber bundle is firstly sucked by a fiber dropping suction gun at the three rollers, and the spandex which is to be finished at present is broken. The method for replacing the polyester ammonia empty-covered yarn by the one-step method has the advantages of less waste yarn amount, short empty spindle time of a machine table, higher production efficiency, simplicity and convenience in operation and capability of effectively reducing the risk of industrial injury.
Description
The technical field is as follows:
the invention relates to the field of polyester fiber production, in particular to a method for replacing yarns in polyester spandex empty-covered yarns produced on an all-in-one machine by a one-step method.
Background art:
with the increasing demand of one-step polyester spandex empty-covered yarns in the market, various manufacturers realize more and more one-step polyester spandex empty-covered yarns on the original elasticizing machine for producing the polyester low-stretch yarns by additionally arranging a spandex device, so that whether the yarn changing method is proper or not is particularly important. The conventional draw texturing machine produces low-stretch yarns by passing the tail of the polyester POY yarns, so that the ends of the polyester POY yarns cannot rise again under normal conditions except for starting and repairing broken yarns. However, when the polyester spandex empty-covered yarn is produced, because the spandex yarn cannot be produced after the tail, the spandex yarn needs to be replaced again after one spandex yarn is produced, and the head needs to be raised again after the spandex yarn is replaced. The traditional method is that after the whole spandex yarn is completely polished, the filament cutter automatically cuts the POY yarn and then raises the head one by one, and when the head is raised, the polyester POY yarn needs to be raised first and then the spandex yarn needs to be raised. Generally, the draw texturing machine has 288 ingot positions and more, so that the method of raising heads again one by one ingot position generates a large amount of waste silk, and each ingot position generates blank ingot time to influence the yield of the whole machine and finally influence the production cost of products. In addition, the traditional method is that one person finishes the step of raising the head, and for the head raising of each spindle position, an operator runs on a head raising trolley with the height of more than 1 m for at least 2 times, and changes a batch of threads, so that the running times are very large, and the risk of slipping industrial injury is easily caused.
The invention content is as follows:
the invention aims to solve the technical problem of providing a one-step method for producing polyester spandex empty-covered yarn and changing yarn, which has the advantages of less waste yarn generation amount, short empty spindle time of a machine table, higher production efficiency, simplicity and convenience in operation and capability of effectively reducing the risk of industrial injury.
The technical proposal of the invention is to provide a method for changing yarn of empty polyester ammonia covered yarn by one-step method, which comprises the following steps,
firstly, the spandex filament is changed without running light, and the polyester POY filament is not cut. Once the spandex silk runs, the silk detector can signal the silk cutter to cut off the polyester POY silk at the same time, and the normal protection program of the machine cannot be changed, otherwise, the normal operation of the machine is influenced. In this case, the ends of the polyester yarns and the spandex yarns must be raised again, and the surface layer of the finished empty-covered yarns has abnormal yarns, so that the abnormal yarns must be stripped, and the waste silk consumption is increased. The method comprises the steps of changing the yarns without bleeding of spandex, sucking the yarn bundle by a falling yarn suction gun at a position of three rollers when the spandex yarn is to be manufactured into a thin-skin paper tube, breaking the spandex yarn which is to be manufactured at present, replacing a new spandex yarn to an unwinding device, leading out a spandex yarn head by using the spandex yarn suction gun, hanging the spandex yarn head to a yarn guide above a guide disc of the two rollers, pulling down the polyester yarn which is still in operation from the guide disc of the two rollers, then rewinding the spandex yarn head to the guide disc of the two rollers together with the spandex yarn which is sucked in the suction gun, breaking the spandex yarn from the suction gun, enabling the spandex yarn to enter a network nozzle together with the polyester yarn to form empty covered yarns, finally enabling the empty covered yarns to enter the suction gun at the position of the three rollers, pulling out the falling yarn suction gun to hang the empty covered yarn bundle on a winding device, and completing the yarn changing and head raising step. The method saves the step of re-raising the ends of the polyester yarns, not only saves the time for replacing the yarns and raising the ends, but also greatly reduces the generation of waste yarns;
secondly, the wire changing head is completed by matching an upper operator and a lower operator. The upper staff always stands on the head lifting trolley to change spandex yarns, and the lower staff always stands on the ground to fall yarns and wind the head. In the operation process, the upper and lower matching is required, the operation sequence of the two persons is that firstly the lower staff breaks the filament bundle and uses a filament falling suction gun to suck the filament bundle, then the upper staff replaces the spandex filament and enables the spandex filament to enter the lower path together with the polyester filament, and finally the lower staff finishes the winding work of the upper head. The steps are completed in sequence, and the smooth operation of the wire changing and head lifting is ensured. The upper and lower operators are matched to finish the wire changing and head lifting, so that the running-up and running-down time can be saved, the generation amount of waste wires is reduced, and the risk of industrial accidents caused by getting on and off the trolley can be reduced.
And thirdly, two suction guns are used simultaneously in the process of changing the yarn and lifting the yarn, one suction gun is used for dropping the yarn, and the other suction gun is used for sucking the spandex yarn. Originally, add bullet machine's suction gun air supply joint all sets up in winder frame side, 2 the suction gun uses simultaneously comparatively difficultly, the air supply hose of suction gun twines easily and beats the frame, consequently, set up air supply all the way again, and connect evenly distributed in former silk frame both sides to the air supply, just so with the air supply joint in winder frame side originally not one row but separately both sides, 2 the suction gun can connect respectively to connect and connect in both sides, can effectively avoid winding in the use and play the frame, improve work efficiency.
Preferably, the winding time (lighting time) is set to be slightly less than the time of finishing the spandex filament, and lighting is generally required to be started 5 minutes ahead of finishing the spandex filament, so that an operator can be reminded of preparing to enter a filament changing and head rising state in advance.
Preferably, the spandex yarn is selected to be a product with stable quality and accurate fixed length and fixed weight, otherwise the winding time is influenced, the yarn changing and head raising work is finally driven, and the fixed length and fixed weight index of the polyester spandex empty-covered yarn is influenced.
Compared with the prior art, the invention has the following advantages after adopting the scheme: the method has the advantages that the spandex yarns are replaced without being finished, the polyester POY yarns are not cut off, the process of yarn replacement and yarn raising is reduced, the time is saved, the time for generating waste yarns is greatly reduced, the quantity of the waste yarns is reduced, the yield is improved, the risk of yarn path irregularity possibly generated in the yarn raising process is avoided because the polyester yarns do not need to be raised again, and the product quality is improved; the upper and lower operators are used for finishing the work of changing the wire and raising the head, so that the time is saved, the waste wire is reduced, and the hidden danger of industrial accidents is effectively avoided; the suction gun air source is added, the two sides of the air source are distributed, so that the suction gun can be effectively prevented from being wound and placed in a frame in the use process, and the working efficiency is improved.
The specific implementation mode is as follows:
the invention is further illustrated with respect to specific embodiments below:
example 1
A method for replacing polyester spandex empty-covered yarn in one-step production comprises the following steps that two operators of a machine stop car are arranged, a texturing machine is generally divided into A, B sides, and the two operators are respectively responsible for the A, B side of a machine when the yarn is not replaced and the yarn is lifted. When the spandex yarn currently used on the machine table is about to be finished and only a little thin skin yarn is left to see the paper tube, two operators enter the yarn changing and head lifting work, one operator stands on the head lifting trolley, and the other operator stands on the ground. Firstly, the tow is broken at the back of the three rollers by the following operators, the broken tow is absorbed by an absorption gun, and a new paper tube is arranged for standby application after the finished yarn on the winding device falls down; secondly, after the lower operator sucks the filament bundle by using a suction gun, the upper operator opens a spandex unwinding switch, pulls the thin-skin spandex filament out of the unwinding device and then installs a new full-roll spandex filament, the spandex suction gun leads the spandex filament out of the filament head, and the suction gun leads the spandex filament to enter a filament guide above a G2 guide disc for standby application; then the worker pulls down the polyester yarn wound on the G2 guide disc, and then the polyester yarn and the spandex yarn in the suction gun are wound back to the G2 guide disc again, the spandex yarn is pulled off from the suction gun, and the spandex yarn can enter the next procedure along with the polyester yarn; and finally, after confirming that the spandex yarn reaches the yarn dropping suction gun by the following operators, guiding the yarn bundle to wind the winding device by the suction gun, and finishing all yarn changing work.
Because 2 operators are arranged on the machine platform and the wire replacement needs to be carried out by 2 operators at the same time, the wire replacement time for 288 ingot positions on the machine platform must be reasonably arranged, and the condition that the wire replacement needs to be carried out for 2 or more ingot positions cannot occur at the same time. Therefore, the machine tables need to be arranged when the machine tables are started and raised for the first time, in general, when the machine tables are started and raised for the first time, the middle of one fourth of the machine tables is raised and is paused for about 15 minutes, the middle of one half of the machine tables is raised and is paused for about 30 minutes, the middle of three fourth of the machine tables is raised and is paused for about 15 minutes, and the pausing time is used for supplementing the broken ends, the filament bundle inspection and other auxiliary work.
The wire changing method reduces the labor intensity of machine station operators, reduces the risk of industrial injury, improves the fixed length and fixed weight accuracy of products, effectively reduces the waste wire amount, reduces the consumption, improves the utilization rate of the machine station, increases the yield and ensures that the product benefit is improved and has more competitiveness.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. All equivalent process changes made by the present specification are included in the scope of the present invention.
Claims (4)
1. A one-step method for producing polyester spandex empty-covered yarn and changing yarn is characterized in that: including the following in-eluding matters,
firstly, changing the spandex without running light, when the spandex is to be finished into a thin-skin paper tube, firstly sucking a filament bundle by a filament dropping suction gun at a position of three rollers, breaking the spandex filament which is to be finished at present, replacing a new spandex filament to an unwinding device, leading out a spandex filament head by the spandex filament suction gun and hanging the spandex filament head to a filament guide device above a guide disc of the two rollers, pulling down the polyester filament which is still in operation from the guide disc of the two rollers, then rewinding the polyester filament with the spandex filament which is sucked in the suction gun to the guide disc of the two rollers again, breaking the spandex filament from the suction gun, then leading the spandex filament to enter a network nozzle together with the polyester filament to form empty package yarns, finally leading the empty package yarns to the suction gun at the position of the three rollers, pulling out the filament dropping suction gun to hang the empty package yarns on a winding device, and completing the step of changing the filament head;
the second step, the yarn changing and head raising is completed by matching an upper operator and a lower operator, the upper worker always stands on a head raising trolley to change spandex yarns, the lower worker always stands on the ground to drop and wind the upper head, in the operation process, the two operators firstly break the yarn bundle and suck the yarn bundle by a yarn dropping suction gun, the upper worker replaces the spandex yarns and enables the spandex yarns to enter a lower path along with the polyester yarns, and finally the lower worker finishes winding the upper head;
and thirdly, resetting one path of air source, uniformly distributing air source connectors on two sides of the original filament rack, and inserting the filament falling suction guns and the spandex filament suction guns on two sides respectively, so that the 2 suction guns are used in the process of changing filaments and raising the filaments.
2. The one-step method for changing the yarn of the polyester spandex empty-covered yarn, according to claim 1, is characterized in that: the winding time is set to be slightly shorter than the time for finishing the spandex yarn.
3. The one-step method for changing the yarn of the polyester spandex empty-covered yarn according to claim 2, wherein the method comprises the following steps: the requirement is that the lamp is turned on 5 minutes ahead of the completion of the spandex filament, so that an operator can be reminded in advance to prepare to enter a filament-changing and head-raising state.
4. The one-step method for changing the yarn of the polyester spandex empty-covered yarn, according to claim 1, is characterized in that: the spandex filament is selected to be a product with stable quality and accurate fixed length and weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910246846.6A CN110004537B (en) | 2019-03-29 | 2019-03-29 | Method for replacing yarns of polyester spandex empty-covered yarns by one-step method |
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| CN201910246846.6A CN110004537B (en) | 2019-03-29 | 2019-03-29 | Method for replacing yarns of polyester spandex empty-covered yarns by one-step method |
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| CN110004537B true CN110004537B (en) | 2021-09-28 |
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