EP1737776A1 - Procede de reinitialisation du comptage de longueur des bobines de fil - Google Patents
Procede de reinitialisation du comptage de longueur des bobines de filInfo
- Publication number
- EP1737776A1 EP1737776A1 EP05728067A EP05728067A EP1737776A1 EP 1737776 A1 EP1737776 A1 EP 1737776A1 EP 05728067 A EP05728067 A EP 05728067A EP 05728067 A EP05728067 A EP 05728067A EP 1737776 A1 EP1737776 A1 EP 1737776A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- speed
- rotation
- counting
- measured
- reset
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H61/00—Applications of devices for metering predetermined lengths of running material
-
- 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
- B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
-
- 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
Definitions
- the invention relates to the technical sector of textile yarn processing machines.
- the invention finds an application in the field of winding which consists in applying a reel in formation on a motorized receiving cylinder to ensure both the rotational driving of the reel and the drawing of the thread.
- the coil on which the wire is wound is subject to a movable assembly which encloses the central tube between rotary centering members allowing it to rotate on its axis, while causing it to be pressed against the motorized cylinder.
- the device (s) can be coupled with means capable of warning the operator that the programmed footage is reached so that the latter performs the reception clearance, that is to say the evacuation of the reel and restarting the winding on an empty support.
- the device can also be coupled with a means making it possible to interrupt the programmed winding reached, while waiting for an operator.
- the device can also be coupled with automatic digging means when the programmed footage is reached. The aim is therefore to produce coils of perfectly equal lengths so that, for example, all the warp threads are identical, without knots or loss of reel bottoms.
- the control devices are, for example, based on the measurement of the speed of the call members of the machine or of different means bringing together different winding parameters in order to then perform metering calculations.
- Patent FR 2,123,176 which relates to a device based on the counting of pulses supplied by a sensor detecting the rotation of a shaft whose speed is representative of the speed of thread advancement.
- the patent FR 2,309,832 describes a system based on the counting of pulses delivered by a sensor detecting the rotation of the coil, an electronic circuit evaluating the quantity of wire wound on the circumference of the coil with each rotation of the latter.
- Patent FR 2,517,657 relates to a technical solution equivalent to that defined above with means capable of compensating for measurement errors due to slippage.
- the operator may decide to restart production on a new reel. In this case, it is usually necessary to lift and discard the spool and place an empty tube to start production again. The metering counting of the position must then be reset to zero by means of a contactor linked to the position so that this counting restarts from the beginning.
- a switch placed on the assembly which supports the coil or its tube detects the operation of the support characteristic of the replacement of the full coil by the empty tube.
- Another means consists in placing a switch in the means for fixing the coil, in order to detect its presence and its temporary absence during the exchange of a full coil with an empty tube.
- Such means are generally expensive and difficult to regulate.
- they perform a reset as soon as the movements characterizing an exchange of full coils by an empty tube are detected, even if such an exchange is not actually carried out.
- the object of the invention is to remedy these drawbacks in a simple, safe, efficient and rational manner.
- the problem which the invention proposes to solve is to ensure the zeroing of the counting of the length of the spool of wire, while having the objective of removing any uncertainty due to the operator, of fully automating the resetting of the footage. , in order to simplify the work of said operator and optimize his intervention time in front of each position, while eliminating the possibility of making coils that are too short.
- the invention finds an advantageous application in the case in particular of a winding device which consists in applying the reel in formation on a motorized receiving cylinder ensuring both the driving in rotation of the reel and the call some thread.
- the counter is reset from the measurement of the diameter of the coil in formation after it has started.
- a process has been designed and developed according to which: the speed of rotation obtained with the empty reel being previously recorded; after the start-up, the speed of rotation of the reel in formation is measured, which corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase and it is compared with that obtained when the coil is empty; - if the rotational speed measured after starting is substantially equal (or higher) to the rotational speed obtained with the empty spool, then the length counting is reset; if the speed after starting is significantly lower than the rotation speed corresponding to an empty tube, then the counting is resumed where it had remained.
- the measurement of the speed after starting is understood immediately after the acceleration phase following starting. In practice, this speed corresponds to the maximum speed reached at the end of the start-up acceleration phase and at the start of the consecutive progressive slowdown phase of the winding phase.
- Resetting the counter can be a simple reset.
- this reset can be a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
- the speed of rotation is measured continuously or at regular intervals during production.
- the rotational speed measured immediately before stopping production is memorized.
- the speed of rotation is measured after restarting and it is compared, on the one hand, with the speed of rotation obtained with an empty coil and, on the other hand, with the speed memorized immediately before stopping, so that: if the speed of rotation measured after restarting is substantially equal (or greater) to the speed of rotation obtained with the empty reel, the reset is carried out length counting; if the rotational speed measured after restarting is substantially equal to the rotational speed obtained immediately before stopping, the length counting is not reset and the counting is resumed where it had remained; if the rotational speed measured after restarting is less than the rotational speed obtained with the empty reel and greater than the rotational speed obtained immediately before stopping, the length counting is not reset, the resumption is resumed counting where it remained and an alarm is triggered to indicate a risk of counting anomalies.
- the following test can usefully complete the process: - if the speed of rotation measured immediately before stopping is substantially equal to the speed of rotation obtained with the empty reel, a length counting reset is carried out and a trigger is triggered an alarm to indicate a risk of counting anomalies.
- the speed of rotation corresponding to the final footage of a correctly wound coil and or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system is recorded beforehand. According to this second improvement: if the speed of rotation measured after restarting and / or during winding is substantially less than or equal to the speed of rotation corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to maximum diameter of the coil supported by the winding system, the winding is interrupted and an alarm is triggered to indicate that the coil has reached a too large diameter.
- the following test can usefully complete the process: if the speed of rotation of the reel immediately before stopping at the programmed footage is different from the speed of rotation corresponding to the final footage, an alarm is triggered to indicate that the final diameter of the coil does not conform to the expected final diameter.
- a table containing the speed of rotation as a function of the yardage achieved for a properly wound coil is recorded beforehand, so that, if the speed of rotation measured at any time of the winding is different from the corresponding speed of rotation at the footage reached at the time considered for a correctly wound coil, an alarm is triggered indicating that the diameter of the coil does not conform to the expected diameter.
- the device comprises at least one means capable of measuring the speed of rotation of the coil, for example a sensor, delivering one or more pulses per revolution to deduce from the frequency of said pulses or from the time elapsed between said pulses, the speed of rotation.
- the device comprises electrical or electronic means capable of performing the operations described above and of triggering the alarms in the form, for example, of one or more visual and / or audible signals.
- the means may be subject to a display indicating the causes of the alarm.
- the means can be a computer, an automaton, a logic electronic circuit, possibly combined with other processing and / or diagnostic means.
- FIGS. 1, 2 and 3 are perspective views showing the principle of measuring the speed of rotation of the spool, in the following phases: - figure 1: starting of the coil on an empty tube; - Figure 2: stop and restart of the coil during winding; - Figure 3: end of winding in footage;
- FIG. 4 shows a diagram showing the acceleration and then the deceleration of the speed of the coil during start-up;
- Figure 5 is an algorithm describing the invention;
- - Figure 6 shows an algorithm describing the invention according to a first improvement;
- FIG. 1, 2 and 3 are perspective views showing the principle of measuring the speed of rotation of the spool, in the following phases: - figure 1: starting of the coil on an empty tube; - Figure 2: stop and restart of the coil during winding; - Figure 3: end of winding in footage;
- FIG. 4 shows a diagram showing the acceleration and then the deceleration of the speed of the coil during start-up;
- Figure 5 is an algorithm describing the invention;
- - Figure 6 shows
- the marks (F) correspond to the wire, (1) to the call cylinder, (2) to the coil tube, (3) to the wire winding, (4) to the wire guide and ( 5) by means of measuring the angular speed of the coil (2).
- the measurement of the speed of rotation of the spool (2) is used, which is a variable which varies depending on the length of the wire wound.
- the speed of rotation of the spool (2) is substantially inversely proportional to the circumference of the spool and therefore its diameter.
- this speed of rotation of the coil is maximum when the tube is empty, and decreases as and as the coil circumference increases.
- the speed of rotation (No) obtained with the empty tube (2) is recorded beforehand.
- Resetting the counter can be a simple reset.
- this reset can be a reset of the count to the winding length recorded during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
- the speed of rotation is measured continuously or at regular intervals during protection (see algorithm figure 6).
- the rotation speed (Va) recorded before stopping is memorized.
- the speed of rotation (Vd) is measured after restarting and compared, on the one hand, with the speed of rotation (Vo) obtained with the empty tube and, on the other hand, with the speed of rotation (Va) recorded immediately before Panêt.
- the speed of rotation (Vp) corresponding to the final footage of a correctly wound coil and / or the speed of rotation corresponding to the maximum diameter of the coil supported by the winding system is previously recorded (see algorithm figure 7). If the rotational speed (Vd) measured after restarting and / or during production is less than or equal, within one tolerance, to the rotational speed (Vp) corresponding to the final footage of a correctly wound coil and / or at the speed corresponding to the maximum diameter supported by the winding system, the winding is interrupted. The system may issue an alarm indicating that the maximum diameter of the coil has been exceeded.
- the measuring means (5) can be constituted for example by a magnetic, optical or other sensor, delivering one or more pulses per revolution. The speed of rotation is deduced from the frequency of these pulses or from the time elapsed between these pulses.
- the device comprises means for carrying out the measurements and the treatments described above. These means can be electronic cards, logic circuits, automata, ...
- Alarms can be identified by the combination of different signals or by the different rhythms, frequencies or flashing codes of these signals. Alarms may be subject to a display showing the reason for the alarm. Likewise, these alarms can be transmitted by network to an automaton presented by the machine or another production management system. Note that the alarms can be combined with any diagnostic means, such as voltage detectors, wire presence detectors, textile fault detectors, and more generally by any production quality control system. The various treatments are carried out on electronic cards (PLC for example) or integrated and / or combined with other diagnostic means.
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Mobile Radio Communication Systems (AREA)
- Communication Control (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0450459A FR2867173B1 (fr) | 2004-03-08 | 2004-03-08 | Procede de reinitialisation du comptage de longueur des bobines de fil |
PCT/FR2005/050106 WO2005092756A1 (fr) | 2004-03-08 | 2005-02-18 | Procede de reinitialisation du comptage de longueur des bobines de fil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1737776A1 true EP1737776A1 (fr) | 2007-01-03 |
EP1737776B1 EP1737776B1 (fr) | 2008-04-09 |
Family
ID=34855214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05728067A Not-in-force EP1737776B1 (fr) | 2004-03-08 | 2005-02-18 | Procede de reinitialisation du comptage de longueur des bobines de fil |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070193052A1 (fr) |
EP (1) | EP1737776B1 (fr) |
AT (1) | ATE391691T1 (fr) |
DE (1) | DE602005005977T2 (fr) |
FR (1) | FR2867173B1 (fr) |
WO (1) | WO2005092756A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011132616A (ja) * | 2009-12-22 | 2011-07-07 | Toyota Industries Corp | 精紡機の管糸径推定装置及び管糸径推定方法 |
DE102014018635A1 (de) * | 2014-12-13 | 2016-06-16 | Saurer Germany Gmbh & Co. Kg | Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1495003A (en) * | 1974-08-14 | 1977-12-14 | Kdg Instr Ltd | Method and apparatus for measuring length |
DE2460252C2 (de) * | 1974-12-19 | 1986-09-04 | W. Schlafhorst & Co, 4050 Mönchengladbach | Verfahren zum Herstellen von Textilspulen vorgegebener Fadenlänge |
CH635300A5 (de) * | 1979-04-10 | 1983-03-31 | Zellweger Uster Ag | Verfahren und vorrichtung zur erzielung vorbestimmbarer und genauer garnlaengen auf kreuzspulen. |
US4373266A (en) * | 1980-11-05 | 1983-02-15 | Loepfe Brothers Limited | Equipment for continuously measuring the length of an endless material being wound up into a circular package |
GB8407465D0 (en) * | 1984-03-22 | 1984-05-02 | Rieter Ag Maschf | Length control in winding of threads |
CH675132A5 (fr) * | 1987-09-01 | 1990-08-31 | Zellweger Uster Ag | |
EP0952245B1 (fr) * | 1998-03-27 | 2003-01-08 | Murata Kikai Kabushiki Kaisha | Machine de torsion multiple avec broche à entraínement individuel |
-
2004
- 2004-03-08 FR FR0450459A patent/FR2867173B1/fr not_active Expired - Fee Related
-
2005
- 2005-02-18 WO PCT/FR2005/050106 patent/WO2005092756A1/fr active IP Right Grant
- 2005-02-18 EP EP05728067A patent/EP1737776B1/fr not_active Not-in-force
- 2005-02-18 AT AT05728067T patent/ATE391691T1/de not_active IP Right Cessation
- 2005-02-18 US US10/598,679 patent/US20070193052A1/en not_active Abandoned
- 2005-02-18 DE DE602005005977T patent/DE602005005977T2/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005092756A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE602005005977D1 (de) | 2008-05-21 |
ATE391691T1 (de) | 2008-04-15 |
EP1737776B1 (fr) | 2008-04-09 |
US20070193052A1 (en) | 2007-08-23 |
DE602005005977T2 (de) | 2009-05-28 |
FR2867173B1 (fr) | 2006-04-21 |
FR2867173A1 (fr) | 2005-09-09 |
WO2005092756A1 (fr) | 2005-10-06 |
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