CN103320945B - Yarn for weaving loom is fed to/recovery method and perform the equipment of the method - Google Patents
Yarn for weaving loom is fed to/recovery method and perform the equipment of the method Download PDFInfo
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- CN103320945B CN103320945B CN201310016279.8A CN201310016279A CN103320945B CN 103320945 B CN103320945 B CN 103320945B CN 201310016279 A CN201310016279 A CN 201310016279A CN 103320945 B CN103320945 B CN 103320945B
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- yarn
- spool
- weaving loom
- cylinder
- wound around
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/48—Thread-feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/18—Driven rotary elements
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/347—Yarn brakes
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/367—Monitoring yarn quantity on the drum
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/94—Driving-gear not otherwise provided for
- D04B15/99—Driving-gear not otherwise provided for electrically controlled
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
- D04B35/14—Indicating, warning, or safety devices, e.g. stop motions responsive to thread breakage
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Looms (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
For yarn feeding/recovery method of weaving loom, this weaving loom receives yarn via the Yarn-recovering device being provided with motor-driven spool from Yarn feeding device, and this motor-driven spool is provided with the passage extended between import and outlet.This Yarn-recovering device can operate, to reclaim the amount of thread that is delivered to weaving loom provisionally and to make it return afterwards.Time in the minimum interference position that spool is in yarn, what produce based on sensor device records tension signal, and the tension force of yarn is held in referential data consistently by adjusting device.Obtain consumption indicator, its instruction yarn is from the conveying of Yarn feeding device and independent of any operation signal from weaving loom.If consumption indicator detects the interruption in yarn conveying, then adjusting device is made to stop using temporarily and Yarn-recovering device is worked temporarily, to rotate based on the speed recording tension signal adjustment, so that yarn tension is held in referential data consistently.Also relate to a kind of equipment for performing said method.
Description
Technical field
The yarn that the present invention relates to for weaving loom is fed to/recovery method and perform the equipment of the method.
Background technology
At field of textiles, known weft feeder is provided with stable cylinder, and on this stable cylinder, Mobile rotating arm is wound around multiple yarn coil to form storing (stock).Stable brake is stood from the yarn of cylinder unwinding, under unwinding yarns is remained on slight tension by this stable brake under the demand of weaving loom being arranged at downstream.Stable brake generally includes truncated hollow cone component, and the elastic device that this truncated hollow cone component is manually adjustable is biased to the delivery edge making its inner surface be resisted against cylinder.
As the description in EP2031106, in order to make feeding tension force substantially keep constant, the paper tinsel base brake described can be arranged on feeder downstream in controllable brake, such as EP0622485.This brake is controlled by backfeed loop, this backfeed loop receives the tension signal recorded from sensor, then the reference tension force of this tension signal in indicative of desired tension force is compared, final adjustable brake effect, make with reference to tension force and the difference that records between tension force minimum.
Also known a kind of feeder, yarn is wrapped on rotating cylinder, and yarn pulls out and is fed to the weaving loom in downstream by this rotating cylinder from spool.In this case, situation as in the previous is such, by always regulating the rotating speed of cylinder thus the yarn tension controlled from feeder unwinding based on the signal received from tension pick-up.Therefore, in other words, the change of the tension force that will apply is determined by the difference between yarn drawing velocity that yarn feed rate and downstream loom set.
As everyone knows, some specifically process, such as weave heel of a sock need periodically to reclaim the yarn then returning and be fed to weaving loom.This operation is performed by the specific retracting device being arranged on weaving loom upstream usually.
The retracting device of this type is described and consists essentially of motor-driven spool in EP1741817, and this motor-driven spool has the ramp way be limited to wherein, and yarn is advanced through this ramp way.This passage extends between import and outlet, and this import is axially formed on the end face of spool, and outlet is formed in the cylindrical side of spool.When reclaiming a certain amount of yarn, signal is sent to the retracting device that spool is rotated by the weaving loom in downstream, thus is wrapped on spool by yarn.
For those skilled in the art it is well known that, the key issue of said system is to coordinate the operation of brakes and the operation of recovery system, this brakes operates based on the yarn tension recorded, this recovery system can based on predefined pattern in response to the instruction sent from downstream weaving loom, the difficult problem brought is, such as in the recycling step relevant to contingent burst situation (such as yarn breakage), be difficult to the feeding parameter and the state that accurately control yarn.
Summary of the invention
Main purpose of the present invention is to provide a kind of yarn feed function and yarn of making to reclaim function with than prior art more reliably and more accurate mode method coordinated with each other, especially controls relevant and relevant with the reaction in such as yarn breakage and so on accident situation to the yarn tension in recycling step; And the present invention also aims to provide a kind of equipment for performing this kind of method.
Above-mentioned purpose clearly and other advantage can be become realized by the method with feature as claimed in claim 1 and the equipment with feature described in claim 7, although and dependent claims set forth other secondary favourable feature of this aspect from following description.
Accompanying drawing explanation
Now with reference to by shown in the non-limitative example in accompanying drawing several preferably, the embodiment of non-exclusionism describes the present invention in more detail, in the accompanying drawings:
Fig. 1 illustrates the equipment for performing the inventive method;
Fig. 2 is the side view of the retracting device of the known type be used in equipment shown in Fig. 1;
Fig. 3 is the figure being similar to Fig. 2, but shows the retracting device be in different operating structure;
Fig. 4 shows the flow chart of the step according to the inventive method;
Fig. 5 illustrates the equipment for performing the method according to alternate embodiment of the present invention;
Fig. 6 is the stereogram of the yarn feeder with rotary drum, and this yarn feeder is combined with the equipment shown in Fig. 5 according to transformation one-tenth of the present invention;
Fig. 7 is the front view of yarn feeder shown in Fig. 6;
Fig. 8 is the side view of yarn feeder shown in Fig. 6;
Fig. 9 is the sectional view being similar to Fig. 8, shows the yarn feeder intercepted along Fig. 7 axis IX-IX;
Figure 10 is the sectional elevation view of yarn feeder shown in Fig. 6 of intercepting along the axis X-X of Fig. 8;
Figure 11 is the figure being similar to Fig. 7, but magnification ratio is shown and the yarn feeder be in different operating structure;
Figure 12 shows the flow chart of the step of the method according to alternate embodiment of the present invention.
Detailed description of the invention
Fig. 1 schematically illustrates yarn feeding/reclaimer 10, and this yarn feeding/reclaimer has yarn feeder 12, and this yarn feeder is provided with stable cylinder 14 and is provided with the flywheel 16 being driven rotation by motor 18.Flywheel extracts yarn F out from bobbin 20, and is wrapped on cylinder 14 by yarn, to form storing with the shape of coil.
The braking action of stable brake is stood from the yarn F of cylinder unwinding, under this stable brake is suitable for making yarn remain on slight tension under the demand of general weaving loom 22 being arranged at downstream.Stable brake generally includes truncated hollow cone component 24, and this truncated hollow cone component 24 is biased to the delivery edge making its inner surface be resisted against cylinder 14 by elastic device 26.
In a manner known in itself, the yarn F carrying out self-stabilization brake stands the braking action of electronic yarn brake apparatus (or brake) 28 again, and this electronic yarn brake apparatus is generally comprised within yarn feeder 12 by control unit CU() tension force controll block TC controlled.Control unit CU is programmed, to regulate the braking action being put on yarn F by electronic brake 28 based on the signal received from tension pick-up 30, remains on referential data T_ref with making the tension force substantial constant of carried yarn.
Storing on cylinder 14 is controlled by ternary sensor.Be preferably the first sensor S1 detection of Hall element and passing through, to determine to be wrapped in the amount of thread on cylinder and speed of wrap of flywheel 16 all-in-one-piece magnet M.The the second sensor S2 being preferably mechanical pick-up device provides the binary message about the minimum amount of thread being present in cylinder 14 zone line place.The 3rd sensor S3 being preferably optical pickocff produces a pulse UWP for each yarn coil from cylinder unwinding.Evaluation of speed block SE processing signals UWP, to calculate yarn consumption speed based on the time interval between pulse UWP, and this evaluation of speed block produces enabling signal LE, in this yarn consumption speed higher than predetermined threshold (in this embodiment, this predetermined threshold preferably equals zero) time, this enabling signal makes tension force controll block work.The equipment of this type is described in EP2031106, should with reference to the document in order to describe in more detail.
To describe in EP1741817 and the Yarn-recovering device 32 being shown specifically type in Fig. 2,3 is arranged between electronic brake 28 and tension pick-up 30.
Yarn-recovering device 32 comprises spool 34, and this spool is connected to the driving shaft 36 of motor 38, preferably stepper motor or alternatively brushless electric machine by key, and it is provided with absolute sensor, to measure physical location based on technology known in the art.Spool 34 is arranged to its axis A is tilted with the first angle [alpha] by arrow D indicated direction relative to yarn F, makes the end face 34a sloping floor deviating from motor 38 of spool to entering yarn.Spool 34 has axial circular cylindrical base 40 at its end face 34a place.Being limited to passage 44 in spool 34 opening extends between the import 44a and the outlet 44b opening to the side direction twisting surface 34b of spool of axial circular cylindrical base 40.Passage 44 is straight lines, and tilts with the second angle beta being substantially equal to the first angle [alpha] relative to the axis A of spool.The wear ring 46 of the inside full circle be made up of pottery is put on the edge of cylindrical base 40.The yarn that enters being applied to the upstream and downstream of spool 34 respectively guides eyelet 48 and leaves the phase same level place that yarn guiding eyelet 50 is arranged on wear ring 46.
Yarn F guides eyelet 48, cylindrical base 40 through the yarn of upstream, the yarn in passage 44 and downstream guides eyelet 50.As shown in Figure 3, by operating motor 38, the yarn in Yarn-recovering device downstream is wrapped on spool 34.In order to be explained in more detail Yarn-recovering device 32, should with reference to EP1741817.
Adopt according to method of the present invention, such as description in the flow chart of figure 4, electronic brake 28 and Yarn-recovering device 32 alternately work according to the signal from the 3rd sensor S3, this signal designation yarn consumption and independent of other operation signal any from downstream machine 32.
Specifically, as long as signal LE indicates yarn by unwinding (LE=1), control unit CU regulates the braking action of electronic brake 28 constantly, to make tension force substantially be held in referential data T_ref, Yarn-recovering device remains on the position with yarn minimum interference as shown in Figure 2 simultaneously.Indicate yarn no longer from (LE=0) during cylinder unwinding at signal LE, this situation instruction downstream machine has stopped pull yarn or has started to return the fact of yarn, control unit CU " freezes " braking action with last numerical value, if and the tension force T_meas recorded is lower than comparatively Low threshold tension force T_lim_inf, then make Yarn-recovering device 32 energy collect yarn, simultaneously to the speed V of Yarn-recovering device
rRregulate constantly, to be held in referential data T_ref with making tension force substantial constant.In this stage, monitor the whole number of turns and part (fraction) number of turns N that are completed by spool 34.
It should be noted that, adopt according to method of the present invention, spool 34 can rotate along both direction with the speed through regulating.In fact, in yarn recycling step process, the yarn exceeded is wrapped on spool 34 with the horizontal T_ref making tension force be held in expectation, and after initial yarn recycling step, follow-up yarn demand from downstream machine can make spool 34 always rotate along contrary direction with controlled speed, thus returns yarn; But, before reaching initial position (N=0), meeting collect yarn again.When spool reaches initial position, control unit CU makes spool 34 stop, and electronic brake 28 is worked again, then repeats this circulation.
As shown in flowchart form in figure 4, provide two emergency conditions, by these two emergency conditions, while Yarn-recovering device 32 works, ignore tension force control.First condition occurs when N reaches numerical value of N _ max corresponding with the maximum amount of thread that can be stored on spool.In this case, stop process and produce alarm signal.Second condition indicates yarn to occur from during feeder unwinding at signal LE; This means that downstream machine is with certain speed pull yarn, yarn is slided on spool 34.In this case, ignore tension force and control, and automatically drive spool to turn to its resting position N=0.
Therefore, adopt this embodiment, signal LE is used as consumption indicator, this consumption indicator instruction yarn from the conveying of feeder and therefore yarn by the extraction of downstream machine; Based on this indicator, electronic brake 28 and Yarn-recovering device 32 alternately work as mentioned above.
Referring now to Fig. 5, schematically illustrate weft feeder 100, this weft feeder is provided with motor-driven cylinder 102, and yarn F' is wrapped on this motor-driven cylinder.Motor-driven cylinder 102 is delivered to the weaving loom 106 being arranged on downstream from bobbin 104 pull yarn F' and by yarn.Usually be generally comprised within yarn feeder 102 by control unit CU'() tension force of the yarn F' from feeder unwinding is controlled, it is made substantially to be held in referential data T_ref, this control unit is provided with tension force controll block TC', this tension force controll block based on the signal from the tension pick-up 108 be installed on feeder to the rotating speed V of cylinder 102
rPregulate.Therefore, the change of the tension force that will apply is determined by the difference between yarn drawing velocity that yarn feed rate and downstream machine 106 set.
Yarn-recovering device 120 is arranged between motor-driven cylinder 102 and tension pick-up; In the present embodiment, this Yarn-recovering device is included in the shell 103 of feeder 100, as described in more detail in Fig. 6-11.Yarn-recovering device 120 comprises motor-driven spool 122, and this motor-driven spool is positioned to make its axis being parallel in the axis of motor-driven cylinder 102.In addition in this case, the motor (not shown) of spool 122 is preferably stepping motor or alternatively brushless motor, and this motor is provided with the absolute sensor for measuring its physical location.Passage 124 is limited in spool 122, and between import 126 and outlet 128 radially, this import 126 forms the middle of the free end 122a of spool and its axis is tilted relative to the axis of spool 122, and exports 128 and be formed on the side direction twisting surface 122b of spool.Import 126 and outlet 128 by inner full circle to reduce frictionally damage.
Yarn F' from bobbin 104 guides eyelet 130 through the yarn that enters being attached to feeder, be wrapped in cylinder 12 and traditional tension force limiter (does not fall within the scope of the invention, therefore do not describe further) arm 132 between, be advanced through passage 124, then coordinate with the sensing element 134 of tension pick-up 108, eventually pass through and leave yarn guiding eyelet 136 to be fed to the machine in downstream, wherein, this passage 124 is positioned at the resting position shown in Figure 10 still, this passage is not interfered with the path of yarn substantially, and tension pick-up 108 is also contained in the shell 103 of feeder.Shown in Fig. 6-11, control unit CU' is contained in the pedestal 138 of feeder 100 usually, and this pedestal also accommodates tension pick-up 108 and is provided with program button 140 and display 142.
Adopt the method according to this alternate embodiment of the present invention, and this alternate embodiment schematically illustrates in the flow chart of Figure 12, the cylinder 12 of feeder and the spool 122 of Yarn-recovering device 120 are according to the speed V of cylinder 102
rPalternately work, this rate signal is independent of other operation signal any from downstream machine.
Specifically, as long as the speed V of cylinder 102
rPhigher than zero, and this situation instruction yarn is carried by feeder and thus by the fact of downstream machine pull, then cylinder 102 continues to rotate with the speed through regulating, thus is held in referential data T_ref with making tension force substantial constant, and spool 122 is held in the resting position shown in Figure 10 simultaneously.At the speed V of cylinder
rPbecome when equalling zero, this situation instruction feeder stops feeding yarn and downstream machine stops pull yarn or starts the fact returning yarn thus, then control unit CU' makes spool 122 with the speed V through regulating
rRcollect yarn, thus be held in referential data T_ref with making tension force substantial constant.In this stage, monitor the whole number of turns and part number of turns N that are completed by spool 122.
Embodiment before being similar to, spool 122 can rotate along both direction with the speed through regulating.In fact, in yarn recycling step process, the yarn exceeded is wrapped on spool 122 with the horizontal T_ref making tension force be held in expectation, and after initial yarn recycling step, follow-up yarn demand from downstream machine can make spool 122 always rotate along contrary direction with controlled speed, thus returns yarn; But, before reaching initial position (N=0), meeting collect yarn again.When spool reaches initial position N=0, control unit CU' makes spool 122 stop, and cylinder 102 is worked again, then repeats this circulation.
Adopt this embodiment, be also provided with emergent adjustment, tension force can be ignored by this emergent adjustment and control.Specifically, when N reaches the numerical value of N _ max corresponding with the maximum amount of thread that can be stored on spool, stop process and produce alarm signal.
Therefore, adopt this embodiment, the speed V of cylinder
rPas consumption indicator, this consumption indicator instruction yarn by feeder conveying and therefore yarn by the extraction of downstream machine; Based on this indicator, cylinder 102 and spool 122 alternately work according to said method.
Be described herein some preferred embodiments of the present invention, but certainly can make many changes by those skilled in the art within the scope of the claims.Specifically, in the embodiment described by first, the alternative electronic brake 28 of the stable brake described in EP1059375 uses, and this stable brake applies controlled braking action for unwinding yarns.In addition, in the embodiments described, Yarn-recovering device be always located so that this Yarn-recovering device can occupy not with the position of yarn intervention, for the first embodiment as shown in Figure 2, and for the second embodiment as shown in Figure 10.But according to the layout of textile manufacturing line, yarn still can be made partially to open even if spool can be arranged to be in its resting position, in this resting position, this spool applies minimum braking action for yarn.
Claims (10)
1. for yarn feeding/recovery method of weaving loom, wherein:
Weaving loom (22, 106) via Yarn-recovering device (32, 120) receive from Yarn feeding device (12, 100) yarn (F, F'), described Yarn-recovering device has motor-driven spool (34, 122), described motor-driven spool has the passage (44 be limited to wherein, 124), and described passage by yarn through and at import (44a, 126) and outlet (44b, 128) extend between, free end (the 34a to described spool is opened in described import, centre 122a), described outlet is then formed in the lateral surface (34b of described spool, 122b), and described Yarn-recovering device (32, 120) can operate to reclaim provisionally the amount of thread being delivered to described weaving loom and afterwards described yarn be returned,
And, when described spool (34,122) is in the minimum interference position with described yarn, tension signal (T_meas, T'_meas) is recorded based on what produced by sensor device (30,108), the tension force of described yarn (F, F') is remained on referential data (T_ref, T'_ref) by adjusting device (28,102) constant
It is characterized in that,
Obtain consumption indicator (LE, V
rP), described consumption indicator indicates yarn from the conveying of described Yarn feeding device (12,100), and independent of any operation signal from described weaving loom (22,106), if described consumption indicator (V
rP, LE) indicate yarn carry in interruption, then
Described adjusting device (28,102) is made to stop using and described Yarn-recovering device (32,120) is worked temporarily temporarily, thus with based on the described speed rotation recording tension signal (T_meas, T'_meas) and regulate, remain on described referential data (T_ref, T'_ref) in order to the tension force substantial constant by described yarn.
2. the method for claim 1, it is characterized in that, monitor the position (N) of described spool (34,122) relative to the described minimum interference position with yarn, if and while described Yarn-recovering device works, described spool (34,122) gets back to described minimum interference position, then make described Yarn-recovering device stop using and described adjusting device (28,102) is worked again.
3. method as claimed in claim 1 or 2, it is characterized in that, monitor the position (N) of described spool (34,122) relative to the described minimum interference position with described yarn, and when realizing the predetermined maximum recovery number of turns, described spool (34,122) is stopped.
4. the method for claim 1, it is characterized in that, described Yarn feeding device (12) is provided with stable yarn and is wound around cylinder (14), described yarn (F) is wound around cylinder unwinding from described stable yarn under the demand from described weaving loom (22), and described adjusting device comprises electronic yarn brake apparatus (28), described electronic yarn brake apparatus is arranged on described Yarn feeding device downstream, and controlled by control unit (CU), the extraction that wherein yarn is wound around cylinder (14) from described stable yarn is monitored by sensor device (S3), it is characterized in that, described consumption indicator comprises consumption signal (LE), described consumption signal is based on the signal (UWP) produced by described sensor device (S3).
5. method as claimed in claim 4, it is characterized in that, monitor the position (N) of described spool (34) relative to the described minimum interference position with yarn, and when if described consumption signal (LE) indicates described yarn to extract out while described Yarn-recovering device works, described spool (34) is made automatically to move to its minimum interference position, make described Yarn-recovering device (32) inoperative, and described adjusting device (28) is worked again.
6. the method for claim 1, it is characterized in that, described Yarn feeding device (100) is provided with motor-driven yarn and is wound around cylinder (102), described motor-driven yarn winding cylinder makes the yarn waiting to be fed to described weaving loom (106) be wound around thereon, and described adjusting device comprises control unit (CU'), described control unit is programmed to regulate described yarn to be wound around the rotating speed of cylinder, it is characterized in that, described consumption indicator indicates described yarn to be wound around the rotating speed of cylinder, and described rotating speed become zero be considered to indicate yarn to described weaving loom (106) conveying in interruption.
7., for the equipment to/from weaving loom (22,106) feeding/collect yarn, comprising:
Yarn feeding device (12,100), described Yarn feeding device is arranged to yarn (F, F') to be fed to described weaving loom,
Yarn-recovering device (32, 120), described Yarn-recovering device is arranged on described Yarn feeding device (12, 100) and described weaving loom (22, 106) between, and be provided with motor-driven spool (34, 122), described motor-driven spool has the passage (44 be limited to wherein, 124), described passage by described yarn through and at import (44a, 126) and outlet (44b, 128) extend between, free end (the 34a to described spool is opened in described import, centre 122a), and described outlet is formed in the lateral surface (34b of described spool, 122b),
Adjusting device (28,102), described adjusting device is controlled by control unit (CU, CU'), when described spool (34,122) is in the minimum interference position with described yarn, tension signal (T_meas, T'_meas) is recorded based on what produced by sensor device (30,108), remain on referential data (T_ref, T'_ref) in order to the tension force substantial constant by described yarn (F, F')
Described Yarn-recovering device (32,120) can operate, to reclaim the amount of thread that is delivered to described weaving loom provisionally and to make described yarn return afterwards,
It is characterized in that, described control unit is programmed, to process consumption indicator (LE, V
rP), described consumption indicator instruction yarn from the conveying of described Yarn feeding device (12,100) and independent of any operation signal from described weaving loom (22,106), and if described consumption indicator (V
rP, LE) indicate yarn carry in interruption, described adjusting device (28,102) is then made to stop using provisionally and described Yarn-recovering device (32,120) is worked provisionally, thus with based on the described speed rotation recording tension signal (T_meas, T'_meas) and adjustment, remain on described referential data (T_ref, T'_ref) for the tension force substantial constant by described yarn.
8. equipment as claimed in claim 7, it is characterized in that, described Yarn feeding device (100) comprises shell (103), the motor-driven yarn of described outer casing supporting is wound around cylinder (102) and described sensor device (108), it is characterized in that, described spool (122) is also bearing in described yarn by described shell (103) and is wound around between cylinder (102) and described sensor device (108), and is arranged to make its axis being parallel be wound around the axis of cylinder (102) in described yarn.
9. equipment as claimed in claim 8, it is characterized in that, described import (126) has the axis tilted relative to the axis of described spool (122).
10. equipment as claimed in claim 8 or 9, it is characterized in that, described import (126) and described outlet (128) have corresponding inner chamfer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2012A000261 | 2012-03-22 | ||
| IT000261A ITTO20120261A1 (en) | 2012-03-22 | 2012-03-22 | METHOD OF FEEDING / RECOVERY OF YARN FOR TEXTILE MACHINES, AND APPARATUS FOR THE EXECUTION OF THIS METHOD. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103320945A CN103320945A (en) | 2013-09-25 |
| CN103320945B true CN103320945B (en) | 2016-02-24 |
Family
ID=46001518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310016279.8A Active CN103320945B (en) | 2012-03-22 | 2013-01-16 | Yarn for weaving loom is fed to/recovery method and perform the equipment of the method |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US20130248635A1 (en) |
| EP (1) | EP2642004B1 (en) |
| CN (1) | CN103320945B (en) |
| IT (1) | ITTO20120261A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2907906B1 (en) * | 2014-02-13 | 2016-05-25 | L.G.L. Electronics S.p.A. | A stock-controlling method for a storage yarn feeder with rotary drum |
| JP5999744B1 (en) * | 2014-12-10 | 2016-09-28 | 内野株式会社 | Weaving method of multiple gauze and multiple gauze fabric |
| DE102015104903B3 (en) * | 2015-03-30 | 2016-06-16 | Memminger-Iro Gmbh | Method and device for monitoring the production of a knitting machine and knitting machine |
| BE1023564B1 (en) * | 2015-11-03 | 2017-05-05 | VAN DE WIELE Michel NV | YARN TENSION SYSTEM AND METHOD FOR TENSIONING A YARN TAKEN FROM A YARN STORAGE SYSTEM TO A YARN REMOVAL SYSTEM OF A WEAVING MACHINE |
| ITUB20160067A1 (en) * | 2016-01-26 | 2017-07-26 | Lgl Electronics Spa | YARN RECOVERY DEVICE FOR TEXTILE EQUIPMENT. |
| CN108519117A (en) * | 2018-03-20 | 2018-09-11 | 通鼎互联信息股份有限公司 | A kind of Yarn break checkout gear |
| IT201900011451A1 (en) * | 2019-07-11 | 2021-01-11 | Lgl Electronics Spa | METHOD FOR THE CONTROLLED VOLTAGE FEEDING OF A PLURALITY OF YARNS TO A TEXTILE MACHINE |
| CN110512345B (en) * | 2019-08-14 | 2020-09-01 | 江南大学 | Method for calculating yarn feeding amount of positive yarn feeding mode of circular knitting machine |
| CN110820157B (en) * | 2019-10-31 | 2021-08-10 | 宁波慈星股份有限公司 | Intelligent constant-tension yarn feeding method of knitting machine |
| CN114249170B (en) * | 2020-09-21 | 2024-01-30 | 广东博智林机器人有限公司 | Wire storage mechanism and operation equipment |
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| EP2415916B1 (en) * | 2010-08-04 | 2015-03-04 | L.G.L. Electronics S.p.A. | Method and apparatus for detecting accidental stops of the yarn on a knitting line |
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2012
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- 2012-12-28 EP EP12008643.4A patent/EP2642004B1/en active Active
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2013
- 2013-01-16 CN CN201310016279.8A patent/CN103320945B/en active Active
- 2013-03-15 US US13/834,253 patent/US20130248635A1/en not_active Abandoned
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| EP0622485A1 (en) * | 1993-04-08 | 1994-11-02 | L.G.L. ELECTRONICS S.p.A. | Modulated thread breaking device for weft feeders |
| EP1087048A2 (en) * | 1999-09-24 | 2001-03-28 | Precision Fukuhara Works, Ltd. | Automatic fabric density adjusting device and yarn feeding control mechanism for a circular knitting machine |
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| CN101736503A (en) * | 2008-11-13 | 2010-06-16 | 爱吉尔电子股份公司 | Yarn-feeding apparatus for textile machines, with control of the feeding parameters |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150299914A1 (en) | 2015-10-22 |
| CN103320945A (en) | 2013-09-25 |
| US20130248635A1 (en) | 2013-09-26 |
| EP2642004B1 (en) | 2014-05-14 |
| EP2642004A1 (en) | 2013-09-25 |
| ITTO20120261A1 (en) | 2013-09-23 |
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