WO2011121626A1 - Method and device for detecting the breakage of one or more filaments in synthetic fibre spinning processes - Google Patents
Method and device for detecting the breakage of one or more filaments in synthetic fibre spinning processes Download PDFInfo
- Publication number
- WO2011121626A1 WO2011121626A1 PCT/IT2011/000089 IT2011000089W WO2011121626A1 WO 2011121626 A1 WO2011121626 A1 WO 2011121626A1 IT 2011000089 W IT2011000089 W IT 2011000089W WO 2011121626 A1 WO2011121626 A1 WO 2011121626A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filaments
- filament
- breakage
- movement direction
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D11/00—Other features of manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
- B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
- B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
- B65H63/0324—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using photo-electric sensing means, i.e. the defect signal is a variation of light energy
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/313—Synthetic polymer threads
- B65H2701/3132—Synthetic polymer threads extruded from spinnerets
Definitions
- This invention concerns in general the spinning processes for the production of synthetic fibres, and refers in particular to a method for detecting the breakage of one or more filaments during a synthetic fibre spinning process.
- the synthetic fibres are filamentary materials industrially produced starting from a synthetic polymer, that can be of a different nature, and by a spinning process that consists basically in the heating up to the fusion of the starting polymer, in thrusting under pressure the molten polymer through a spinneret for the formation of a plurality of filaments and in joining and coagulating the filaments by cooling them with air or by humidity.
- the process is carried out in plants having several spinning stations, so-called cabs, each comprising, from the top to the bottom, the so-called extrusion "packs", an intermediate cooling part, and lower nozzles for the formation of the required filaments.
- Every pack comprises a cylinder with the function of filtering and making the fused polymer homogenous, and a disk or spinneret provided with small extrusion holes.
- the fused polymer is loaded on a level with the head "packs” and pressed under pressure through the holes in each spinneret, from which exits a number of filaments equal to the number of extrusion holes. These filaments move down the intermediate cooling part of the cabin where they are cooled.
- the cooling of the filaments is carried out by means of a flow of air basically directed towards them in a transverse direction to their path. Then the filaments coming from each pack are grouped together in a corresponding nozzle positioned in the lower part of the cabin in order to form the final thread.
- the yarn In its path through the nozzle, the yarn becomes oiled after which it is collected on bobbins on other machinery provided downstream of the spinning cabins.
- the spinning process above is however affected by a problem deriving from a possible breakage of one or more filaments during the extrusion and/or cooling steps.
- a present method for verifying possible breakage of filaments and by this the resulting quality of the product consists of a periodic at sight inspection on the part of an operator.
- the operator realizes that there is a problem, he has the possibility of interrupting the production and/or of signaling the position of the bobbin that collects a thread of coarse-quality in that one or more filaments are missing.
- the operator can note the breakage of the filament by means of the accumulation of this at a distance from the regular path of the other filaments, but he cannot be able to quantify precisely the number of thread produced and considered as being of minor quality if he is not present at the moment of the breakage.
- the present invention was conceived to effectively resolve such a problem and has as an objective to allow an immediate chick of the breakage of one or more filaments during the spinning processes.
- This object is achieved, according to the invention, by a method consisting in continuative optical monitoring of the direction of a plurality of filaments during their regular moving between the extrusion. spinneret and the grouping nozzle of the filaments for the formation of the thread, and at the right moment detecting an anomalous deviation of the regular path, even of a single thread, significative of a breakage of said filament and in signaling the present process anomaly so as to be able to remedy.
- This method is carried out by an electronic sensor in order to acquire images of the filaments in movement at least in a section of their regular cooling path between the spinneret and the grouping nozzle, said device being programmed to distinguish the irregular direction of at least a filament compared to the regular path of the other filaments and to emit indicative signals of an irregular direction of at least a filament.
- Fig. 1 is a scheme of an extrusion "pack" with a monitoring device when the filaments are integral;
- Fig. 2 is the scheme in Fig. 1 , but in the breakage condition of a filament.
- the reference number 11 indicates an extrusion "pack” in the ambit of a cabin 12 of a spinning plant.
- Said "pack” basically comprises a spinneret 13 from which exits a bundle of filaments 14 converging downwards towards a nozzle 15, which designed to receive and grouped to form a thread 16 which will then be wound onto spools in an apparatus, not shown, downstream.
- the filaments 14 are basically tight, follow an almost stable direction F and they are cooled by a flow of air 17 passing through a cooling radiator 18.
- an optical sensor 19 is positioned to detect the integrity or not of the filaments depending on their regular or irregular trend compared to the movement direction F.
- Said optical sensor 19 can be made, for example, out of a digital video camera or the like able to acquire and enlarge images of the filaments in motion.
- the optical sensor or video camera 19 is positioned on one side of the bundle of filaments 14 opposite the one the flow of cooling air comes from compared with the radiator 18, facing substantially in the transversal direction to the direction F of the movements of the filaments. Furthermore the optical sensor or video camera is programmed to also detect the presence of one of the filaments that actually deviates and moves away from their correct movement direction F towards the nozzle 15.
- the dotted lines in" both the figures of the drawings indicate the shot 20 of the optical sensor or video camera 19 that invest the bundle of filaments 14 in a part of their path and which includes an area which is provided with an alarm 21.
- This alarmed area will be as adjacent as possible to the bundle of filaments and positioned so that when it is crossed by at least a filament that deviates from the regular path of the remaining filaments emits an alarm signal, both luminous and/or acoustic, convertible into another suitable signal so as to activate other electric or mechanical control devices.
- the optical sensor that is the video camera 19, or the like, acquires in continuation the enlarged image of the filaments exiting from the extrusion spinneret, filaments that follow all the F directions, almost stable as regards to convergence, towards the grouping nozzle.
- the optical sensor or video camera simply detect the images, meaning that the spinning process is being carried out normally -Fig. 1.
- any filament 14' break it no longer remains taught and the flow of cold air 7 moves it away from the other integral filaments-Fig. 2. Consequently, given that the flow of cold air 17 is directed towards the video camera 19, the filament 14' is diverted towards the latter and as soon as the image in the ambient of the alarmed area 21 is detected the system activates an indicative signal regarding the anomaly.
- This signal may also be converted into another signal provided, for example, so as to determine where and when the breakage of the filament happened, so as to interrupt the production locally, and define the production of a second quality thread based on the time which has passed since the signal of the breakage and the stop of the spinning process.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Quality & Reliability (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention concerns a method and a device for detecting the breakage of one or more filaments in a synthetic fibre spinning process. The filaments come from an extrusion spinneret, and are cooled by a flow of air directed in a transversal direction to their path and converge in a linear manner in a grouped nozzle for the formation of a thread. The detection is carried out by continuous monitoring of the movement direction of the filaments on a level with the line of their cooling by air, the detection of a deviation caused by the flow of air from said movement direction even of a single filament significantly of a breakage of the latter, and the emission of at least a signal indicating the existence of at least a filament not included in the direction of the movement of the remaining filaments.
Description
"METHOD AND DEVICE FOR DETECTING THE BREAKAGE OF ONE OR MORE FILAMENTS IN SYNTHETIC FIBRE SPINNING PROCESSES"
*****
Field of the Invention
This invention concerns in general the spinning processes for the production of synthetic fibres, and refers in particular to a method for detecting the breakage of one or more filaments during a synthetic fibre spinning process.
State of the Art
The synthetic fibres are filamentary materials industrially produced starting from a synthetic polymer, that can be of a different nature, and by a spinning process that consists basically in the heating up to the fusion of the starting polymer, in thrusting under pressure the molten polymer through a spinneret for the formation of a plurality of filaments and in joining and coagulating the filaments by cooling them with air or by humidity.
The process is carried out in plants having several spinning stations, so-called cabs, each comprising, from the top to the bottom, the so-called extrusion "packs", an intermediate cooling part, and lower nozzles for the formation of the required filaments.
Every pack comprises a cylinder with the function of filtering and making the fused polymer homogenous, and a disk or spinneret provided with small extrusion holes. The fused polymer is loaded on a level with the
head "packs" and pressed under pressure through the holes in each spinneret, from which exits a number of filaments equal to the number of extrusion holes. These filaments move down the intermediate cooling part of the cabin where they are cooled.
In the case taken into consideration herein, the cooling of the filaments is carried out by means of a flow of air basically directed towards them in a transverse direction to their path. Then the filaments coming from each pack are grouped together in a corresponding nozzle positioned in the lower part of the cabin in order to form the final thread.
In its path through the nozzle, the yarn becomes oiled after which it is collected on bobbins on other machinery provided downstream of the spinning cabins.
Usually, in each cabin there are many head "packs" present, therefore many threads are created at the same time and the threads can be made up of different numbers of filaments.
The spinning process above is however affected by a problem deriving from a possible breakage of one or more filaments during the extrusion and/or cooling steps.
Due to such a breakage the or every broken filament is pushed away from the others by the cooling air flow and on dropping on its own tends to accumulate in a part of the cabin. Thus the resulting thread looses from one to more filaments, becoming irregular, therefore defective and of coarse-quality.
Consequently besides there being a loss of product due to the broken filament that goes lost, there it is also an economic loss of
compensation due to the drop in the commercial value of the article produced.
A present method for verifying possible breakage of filaments and by this the resulting quality of the product consists of a periodic at sight inspection on the part of an operator. When the operator realizes that there is a problem, he has the possibility of interrupting the production and/or of signaling the position of the bobbin that collects a thread of coarse-quality in that one or more filaments are missing.
However, the operator can note the breakage of the filament by means of the accumulation of this at a distance from the regular path of the other filaments, but he cannot be able to quantify precisely the number of thread produced and considered as being of minor quality if he is not present at the moment of the breakage.
Object of the Invention
The present invention was conceived to effectively resolve such a problem and has as an objective to allow an immediate chick of the breakage of one or more filaments during the spinning processes.
This object is achieved, according to the invention, by a method consisting in continuative optical monitoring of the direction of a plurality of filaments during their regular moving between the extrusion. spinneret and the grouping nozzle of the filaments for the formation of the thread, and at the right moment detecting an anomalous deviation of the regular path, even of a single thread, significative of a breakage of said filament and in signaling the present process anomaly so as to be able to remedy.
This method is carried out by an electronic sensor in order to
acquire images of the filaments in movement at least in a section of their regular cooling path between the spinneret and the grouping nozzle, said device being programmed to distinguish the irregular direction of at least a filament compared to the regular path of the other filaments and to emit indicative signals of an irregular direction of at least a filament.
The advantages brought about by the invention appear to be evident and in fact:
- the operator is freed from the task of having to visibly check at least now and then the presence of broken filaments coming from every extrusion "pack",
- the breakage of filaments is immediately signaled so as to be able to intervene and restore without delay the regularity of the process, by means of which,
- the loss of material coming from the breakage of filaments is annulled or at least minimized,
- besides limiting, it is possible to control precisely the production of second choice threads from the moment that the time past from the warning is indicative of the breakage of filaments.
Brief Description of the Drawings
Further details of . the invention will become evident from the description that follows made in reference to the enclosed exemplifying drawing, in which:
Fig. 1 is a scheme of an extrusion "pack" with a monitoring device when the filaments are integral; and
Fig. 2 is the scheme in Fig. 1 , but in the breakage condition of a
filament.
Detailed Description of the Invention
In said drawing, the reference number 11 indicates an extrusion "pack" in the ambit of a cabin 12 of a spinning plant. Said "pack" basically comprises a spinneret 13 from which exits a bundle of filaments 14 converging downwards towards a nozzle 15, which designed to receive and grouped to form a thread 16 which will then be wound onto spools in an apparatus, not shown, downstream.
Along their path from the spinneret 13 to the nozzle 15, the filaments 14 are basically tight, follow an almost stable direction F and they are cooled by a flow of air 17 passing through a cooling radiator 18.
In accordance with the invention, on a level with a part of said path for the filaments 14, preferably adjacent to the exit of the spinneret 13, an optical sensor 19 is positioned to detect the integrity or not of the filaments depending on their regular or irregular trend compared to the movement direction F. Said optical sensor 19 can be made, for example, out of a digital video camera or the like able to acquire and enlarge images of the filaments in motion.
The optical sensor or video camera 19 is positioned on one side of the bundle of filaments 14 opposite the one the flow of cooling air comes from compared with the radiator 18, facing substantially in the transversal direction to the direction F of the movements of the filaments. Furthermore the optical sensor or video camera is programmed to also detect the presence of one of the filaments that actually deviates and moves away from their correct movement direction F towards the nozzle 15.
The dotted lines in" both the figures of the drawings indicate the shot 20 of the optical sensor or video camera 19 that invest the bundle of filaments 14 in a part of their path and which includes an area which is provided with an alarm 21. This alarmed area will be as adjacent as possible to the bundle of filaments and positioned so that when it is crossed by at least a filament that deviates from the regular path of the remaining filaments emits an alarm signal, both luminous and/or acoustic, convertible into another suitable signal so as to activate other electric or mechanical control devices.
All together, the optical sensor, that is the video camera 19, or the like, acquires in continuation the enlarged image of the filaments exiting from the extrusion spinneret, filaments that follow all the F directions, almost stable as regards to convergence, towards the grouping nozzle.
As long as there are no anomalies in the regular path of the filaments, the optical sensor or video camera simply detect the images, meaning that the spinning process is being carried out normally -Fig. 1.
On the contrary, should any filament 14' break, it no longer remains taught and the flow of cold air 7 moves it away from the other integral filaments-Fig. 2. Consequently, given that the flow of cold air 17 is directed towards the video camera 19, the filament 14' is diverted towards the latter and as soon as the image in the ambient of the alarmed area 21 is detected the system activates an indicative signal regarding the anomaly. This signal, then, may also be converted into another signal provided, for example, so as to determine where and when the breakage of the filament happened, so as to interrupt the production locally, and
define the production of a second quality thread based on the time which has passed since the signal of the breakage and the stop of the spinning process.
Claims
1. Method for detecting the breakage of one or more filaments in a synthetic fibre spinning process, where a plurality of filaments come from an extrusion spinneret, are cooled by a flow of air directed transversally to their path and converge linearly in a grouping nozzle for the formation of a thread, the method comprising
a continuous monitoring of the normal movement direction of the plurality of filaments on a level with the path of their cooling by air,
the detecting of a deviation from said movement direction, caused by the flow of air, even of a single filament, meaning the breakage of said filament, and
the transmitting of at least a signal indicating the presence of a filament of the movement direction of the remaining plurality of filaments.
2. Method according to claim 1 , wherein said continuous monitoring of the movement direction of the plurality of filaments and the detection of the presence of at least one filament that deviates due to breakage from said movement direction is of the optical type.
3. Method according to claim 1 or 2, wherein said continuous monitoring and said detection are carried out either by an optical sensor or a digital video camera with a framing field that transversally covers the plurality of filaments exiting from the extrusion spinneret from an opposite direction to the cooling air flow direction.
4. Method according to claim 3, wherein the optical sensor or digital video camera is programmed to detect at least a filament that deviates due to the breakage from the regular movement direction of the other filaments in combination with the cooling air flow, this air flow blowing said filament towards the optical sensor or digital television camera.
5. Method according to any of the previous claims, wherein the framing field of the plurality of filaments includes an alarm area managed to emit an alarm signal as soon as it is crossed by at least one filament which deviated due to breakage from the movement direction of the other filaments.
6. A method according to any of the previous claims, wherein the alarm signals are the luminous and/or acoustic and/or convertible into temporal or command signals so as to be able to interrupt the filaments process and quantify the production of incomplete fibre, or the like.
7. Device for the carrying out of a method for detecting the breakage of one or more filaments in a synthetic fibre spinning process according to the previous claims, characterized by an electronic sensor for the acquisition of images of the filaments in movement at least in a section of their cooling path between the extrusion spinneret and the batching nozzle, where said sensor is programmed to discriminate the irregular direction of at least one filament compared to the regular movement direction of the other filaments and to emit signals indicating an irregular direction of said filament.
8. Device according to claim 7, wherein said electronic sensor is an optical sensor or a digital video camera set up to frame transversally the
plurality of filaments exiting from the extrusion spinneret from an opposite direction to the air cooling flow direction .
9. Device according to claim 8, wherein the optical sensor or a digital video camera has a framing field of the plurality of filaments that includes an alarm system managed to emit at least an alarm signal as soon as it is crossed by at least a deviated filament, due to breakage, from the movement direction of the other filaments.
10. Device according to any of the claims from 7 to 9, comprising furthermore means emitting at least a luminous and/or acoustic and/or other alarm signal convertible into temporal or command signals so as to be able to interrupt the filament process, quantify the production of incomplete fibre, or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11721383A EP2553152A1 (en) | 2010-04-01 | 2011-03-23 | Method and device for detecting the breakage of one or more filaments in synthetic fibre spinning processes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBS2010A000065 | 2010-04-01 | ||
| ITBS2010A000065A IT1399114B1 (en) | 2010-04-01 | 2010-04-01 | METHOD AND DEVICE TO DETECT THE BREAKAGE OF ONE OR MORE BATHS IN SYNTHETIC FIBER SPINNING PROCESSES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011121626A1 true WO2011121626A1 (en) | 2011-10-06 |
Family
ID=43003451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2011/000089 Ceased WO2011121626A1 (en) | 2010-04-01 | 2011-03-23 | Method and device for detecting the breakage of one or more filaments in synthetic fibre spinning processes |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2553152A1 (en) |
| IT (1) | IT1399114B1 (en) |
| WO (1) | WO2011121626A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648559A (en) * | 2016-04-11 | 2016-06-08 | 吴江新劲纺织有限公司 | Textile yarn wind-shield device |
| CN111356797A (en) * | 2017-11-17 | 2020-06-30 | 欧瑞康纺织有限及两合公司 | Melt spinning equipment |
| CN115928231A (en) * | 2021-10-01 | 2023-04-07 | 日本Tmt机械株式会社 | Spinning equipment and spinning take-up equipment |
| CN117148463A (en) * | 2023-07-24 | 2023-12-01 | 桐昆集团浙江恒通化纤有限公司 | Method and system for detecting filaments on line and processing abnormality |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844497A (en) * | 1973-01-02 | 1974-10-29 | Ppg Industries Inc | Strand sensor for automatic knock-off device |
| US3999695A (en) | 1973-11-05 | 1976-12-28 | Celanese Corporation | Filament breakage detection and correction |
| WO1994025870A1 (en) * | 1993-04-29 | 1994-11-10 | Barmag Ag | Method of monitoring an advancing yarn |
| WO1998013288A1 (en) | 1996-09-27 | 1998-04-02 | E.I. Du Pont De Nemours And Company | Detection of broken filaments |
| WO2004048651A1 (en) * | 2002-11-23 | 2004-06-10 | Saurer Gmbh & Co. Kg | Device for melt-spinning and winding a plurality of threads |
| DE102004052669A1 (en) * | 2003-11-13 | 2005-06-30 | Saurer Gmbh & Co. Kg | Process and assembly to monitor the productivity and operating efficiency of a number of textile spinning stations |
-
2010
- 2010-04-01 IT ITBS2010A000065A patent/IT1399114B1/en active
-
2011
- 2011-03-23 WO PCT/IT2011/000089 patent/WO2011121626A1/en not_active Ceased
- 2011-03-23 EP EP11721383A patent/EP2553152A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844497A (en) * | 1973-01-02 | 1974-10-29 | Ppg Industries Inc | Strand sensor for automatic knock-off device |
| US3999695A (en) | 1973-11-05 | 1976-12-28 | Celanese Corporation | Filament breakage detection and correction |
| WO1994025870A1 (en) * | 1993-04-29 | 1994-11-10 | Barmag Ag | Method of monitoring an advancing yarn |
| WO1998013288A1 (en) | 1996-09-27 | 1998-04-02 | E.I. Du Pont De Nemours And Company | Detection of broken filaments |
| WO2004048651A1 (en) * | 2002-11-23 | 2004-06-10 | Saurer Gmbh & Co. Kg | Device for melt-spinning and winding a plurality of threads |
| DE102004052669A1 (en) * | 2003-11-13 | 2005-06-30 | Saurer Gmbh & Co. Kg | Process and assembly to monitor the productivity and operating efficiency of a number of textile spinning stations |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648559A (en) * | 2016-04-11 | 2016-06-08 | 吴江新劲纺织有限公司 | Textile yarn wind-shield device |
| CN111356797A (en) * | 2017-11-17 | 2020-06-30 | 欧瑞康纺织有限及两合公司 | Melt spinning equipment |
| CN115928231A (en) * | 2021-10-01 | 2023-04-07 | 日本Tmt机械株式会社 | Spinning equipment and spinning take-up equipment |
| CN117148463A (en) * | 2023-07-24 | 2023-12-01 | 桐昆集团浙江恒通化纤有限公司 | Method and system for detecting filaments on line and processing abnormality |
| CN117148463B (en) * | 2023-07-24 | 2024-04-02 | 桐昆集团浙江恒通化纤有限公司 | Method and system for detecting filaments on line and processing abnormality |
Also Published As
| Publication number | Publication date |
|---|---|
| ITBS20100065A1 (en) | 2011-10-02 |
| EP2553152A1 (en) | 2013-02-06 |
| IT1399114B1 (en) | 2013-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11486872B2 (en) | Method and device for monitoring a texturing process | |
| CN101646810B (en) | Method and apparatus for melt spinning, processing and winding synthetic filaments | |
| WO2011121626A1 (en) | Method and device for detecting the breakage of one or more filaments in synthetic fibre spinning processes | |
| JP7516473B2 (en) | Method and apparatus for laying down multiple spun yarns - Patents.com | |
| CN111519294B (en) | Yarn breakage early warning monitoring method, system and device and readable storage medium | |
| US10246292B2 (en) | Yarn clearer and spinning station, equipped therewith, of a spinning machine, and method for operating a spinning station | |
| JP2021526187A (en) | Ring spinning equipment and how to operate ring spinning equipment | |
| JP6991002B2 (en) | How to monitor the normal operation of the spinning unit of a ring spinning machine | |
| JP2021502498A (en) | Mechanical equipment for manufacturing or processing synthetic yarns | |
| CN101016656A (en) | Method and device for producing and storing tows | |
| CN107209127A (en) | Method and device for quality monitoring of a plurality of melt-spun fiber slivers of tow | |
| JP7105869B2 (en) | Method and melt spinning apparatus for threading and separating yarn groups | |
| TR2022018796A2 (en) | APPARATUS AND METHOD FOR WINDING A MELT-DRAWN YARN | |
| JP2020525664A (en) | Melt spinning equipment | |
| CN107435168B (en) | Method for monitoring and operating a plurality of melt-spinning positions and melt-spinning device having a plurality of melt-spinning positions | |
| CN112334402B (en) | Method for producing and further processing synthetic yarns | |
| EP3356586B1 (en) | A device and a method for sensing end of warp yarn or tape on a fabric weaving loom | |
| CN103572393A (en) | Method and device for monitoring spinning workshop | |
| JP7837677B2 (en) | Yarn anomaly detection and prediction system on a loom | |
| JPH033867A (en) | Individual type cut yarn processing device | |
| CN115928231A (en) | Spinning equipment and spinning take-up equipment | |
| CN216237455U (en) | Device for automatically detecting and stopping abnormal yarns | |
| CN118531552B (en) | Warp tying system based on data analysis | |
| KR101371386B1 (en) | Method of manufacturing thick-denier fiber | |
| KR102828698B1 (en) | Smart Vision Inspection System of the Yarn Inlet device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11721383 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2011721383 Country of ref document: EP |