CN103924371A - Yarn-feeding assembly for textile machines - Google Patents
Yarn-feeding assembly for textile machines Download PDFInfo
- Publication number
- CN103924371A CN103924371A CN201310674379.XA CN201310674379A CN103924371A CN 103924371 A CN103924371 A CN 103924371A CN 201310674379 A CN201310674379 A CN 201310674379A CN 103924371 A CN103924371 A CN 103924371A
- Authority
- CN
- China
- Prior art keywords
- yarn
- feeder
- cylinder
- component feeding
- tension
- 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
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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
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Knitting Machines (AREA)
- Looms (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
A yarn-feeding assembly (10) comprises a first yarn feeder (14), the first yarn feeder is provided with a drum (16) which has a plurality of yarn loops (Y) wound thereon and is driven to rotate by a respective motor (20). The motor (20) is electronically connected to a textile machine (12) for rotating at a speed proportional to the yarn-drawing speed of the textile machine and delivering the yarn wound on the drum (16) to the latter. A second feeder (22) is arranged to draw the yarn from a reel (18) and to deliver it to the first feeder (14), with a delivery action which is modulated by a control loop (24). The latter is programmed to stabilize the tension of the yarn unwinding from the second feeder on a predetermined value on the basis of a signal received from a tension sensor (26) operatively coupled to the yarn. The above yarn-feeding assembly does not have defects associated to yarn tension fluctuation in the know system, thereby improving production quality.
Description
Technical field
The present invention relates to a kind of for weaving loom, in particular for the yarn component feeding of circular knitter.
Background technology
As everyone knows, general circular knitter is designed to receive the threads from being arranged on the respective feeders unwinding around of this circular knitter, and these feeders extract yarn from corresponding bobbin.
In the feeder of relatively cheap type, reel for yarn is on rotating cylinder, and this rotating cylinder is the Motor Drive by weaving loom via belt driver, and wherein the diameter of the pulley (axis connection) of gear ratio based on forming belt pulley is mechanically determined.
Also this type of feeder of known a kind of more Advanced Edition, for example, at US6, shown in 145,347, this type of feeder allows to select yarn to be fed to, to form candy strip by so-called " line transfer " circular knitter.In this case, feeder is provided with multiple cylinders, for example 4 cylinders, and these cylinder keys are connected in same axle, and is similar to previous situation, and these cylinders are also driven and rotated by weaving loom via belt driver.Each cylinder is connected with a wherein yarn in processing, and under the situation of also always rotating together with weaving loom in cylinder; But these yarns are not wound on their corresponding cylinder completely, but at feeder under idle situation, these yarns only partly coordinate with their cylinder, these yarns not adhere to cylinder thus.In order to select yarn, each cylinder has rod member associated with it, and this rod member can operate so that yarn is opened partially, thereby makes yarn coordinate with the major part of corresponding cylinder and adhere to this cylinder, thereby yarn is fed to weaving loom.
Other known yarn feeder is provided with corresponding motor, these motor are with following speed drive cylinder: the speed of the weaving loom of this speed based on programmable proportionality constant and downstream is proportional, are replicated in electronically thus axle operation (operation in axis).
Above-mentioned feeder in axle operation has advantages of the always required yarn of weaving loom of delivery of precise quantities, but they also have the extremely variable shortcoming of yarn tension of being carried to weaving loom by feeder, because yarn can stand tension fluctuation in feeder upstream, and this situation can cause occurring extremely and flaw in ready-made clothes.The tension fluctuation that yarn stands in feeder upstream can produce due to various factors, skew for example, occurring in the diameter variation that bobbin occurs in the time finding time gradually, the thread path of feeder upstream etc.As everyone knows, the tension fluctuation of feeder upstream can be sent to the downstream of feeder, depends on that input yarn is compared with tight or compared with loose and tightlier or more loose because be wound on yarn coil on cylinder; Therefore, from cylinder unwinding and be fed to the yarn of weaving loom also can the vicissitudinous tension force of tool.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of yarn component feeding for weaving loom, this yarn component feeding is similar to known system and operates to carry the yarn of the corresponding approximately determined number of the number of yarns required with weaving loom at axle, but can not stand shortcoming relevant to Yarn tension fluctuation in known system, improve thus the quality of production.
From following description, can become more clearly above-mentioned target and other advantage and realize by thering is the yarn component feeding of feature as claimed in claim 1, although and dependent claims has been stated other less important favourable feature of the present invention.
Brief description of the drawings
Now with reference to shown in the non-limitative example by accompanying drawing several preferably, the embodiment of non-exclusionism describes the present invention in more detail, in the accompanying drawings:
Fig. 1 schematically shows yarn component feeding of the present invention;
Fig. 2 is the stereogram of the yarn component feeding in the present invention's the first specific embodiment;
Fig. 3 is the front view of the yarn component feeding in the present invention's the second specific embodiment;
Fig. 4 is the side direction view of the yarn component feeding in the present invention's the 3rd specific embodiment.
Detailed description of the invention
Fig. 1 schematically shows the yarn device for feeding 10 of the present invention for weaving loom, for example circular knitter.Shown in Fig. 2 to 4 and at all specific embodiments that below disclose more in detail, covered by the embodiment shown in Fig. 1, therefore, the embodiment shown in Fig. 1 has general application.
Yarn component feeding 10 comprises the first feeder 14, and this first feeder is provided with rotating cylinder 16, and on this rotating cylinder, is wound with the coil from multiple yarns Y of bobbin 18.The cylinder 16 of the first feeder 14 drives rotation by motor 20, this motor is for example connected in the motor of downstream weaving loom electronically via CAN bus 21, for according to programmable proportionality constant, to rotate to the proportional speed of spinning velocity of weaving loom, be replicated in axle by electronic installation thus and operate.
According to the present invention, the second feeder 22 is arranged on the upstream of the first feeder 14, this second feeder extracts yarn and under the conveying action being regulated by control loop 24, yarn is delivered to the first feeder 14 from bobbin 18, this control loop is programmed the signal receiving with tension pick-up based on from being operationally connected in yarn, by from the tension stability of the yarn of the second feeder unwinding on predeterminated level.As everyone knows, because the tension force of the yarn in the first feeder 14 upstreams has reflected the tension force at the yarn in this first feeder downstream, even if thereby the first feeder 14 operates at axle with respect to weaving loom 12, being delivered to the tension force of the yarn of weaving loom 12 by the first feeder 14 still can quite stable and equal desired numerical value, and therefore this first feeder does not carry out any control to yarn tension.
Tension pick-up 26 is preferably disposed between the first feeder 14 and the second feeder 22.
In other words, yarn component feeding according to the present invention allows to control the amount of thread (proportional with the revolution of the first feeder 14) and the yarn that are fed to weaving loom simultaneously and is fed to tension force, and before yarn is delivered to the first feeder 14, to be fed to tension force stable by the second feeder 22 for this yarn.
In certain embodiments of the invention, as shown in Figure 2, two feeders 114 and 122 of yarn component feeding are provided with corresponding rotating cylinder 116,128, these rotating cylinders are supported side by side by single housing 130 and have parallel axis, and drive rotation by the respective electrical motivation (not shown) being contained in housing 130.Tension pick-up 126 is installed on housing 130 between cylinder 116,128.Feeder had both had the yarn between the cylinder 116,128 that is wound on them, had again corresponding bar 117,129, and these bars tilt towards the axis of cylinder, to make yarn coil keep in axial direction spaced.
As shown in Figure 1, the electric motor electron earth's axis of the first feeder 114 is connected in the motor of weaving loom, thereby to rotate to the proportional speed of spinning velocity of weaving loom.
For the second feeder 122, the signal of control loop (not shown in Fig. 2) based on being received by tension pick-up 126 regulates the rotating speed of cylinder 128, so that the tension force of institute's delivered yarn (depending on that the first feeder 114 extracts the difference between the speed of yarn and the speed of the second feeder 122 delivered yarn) remains in aspiration level to substantial constant.
Adopt this embodiment, the electronic device of controlling feeder 114,122 can be integrated in the single loop (not shown) being received in housing 130.
Fig. 3 shows another specific embodiment of the present invention, the difference of this embodiment and last embodiment is: two feeders 214,222 non-formation single body and do not share same control circuit, but separate and be provided with corresponding control circuit (not shown).Current, in this case, tension pick-up 226 is installed on the second feeder 222.
In the embodiment shown in fig. 4, the first feeder of embodiment before the first feeder 314 is similar to, this first feeder is provided with the rotating cylinder 314 being driven by motor (not shown), and this rotating cylinder electronics earth's axis is connected in the motor of downstream weaving loom.
On the contrary, the second feeder is the what is called storage feeder 322 of traditional type.Storage feeder 322 comprises static cylinder 328, and motor-driven rotary flyweights 322 is wound on the multiple yarn coils that form storing S on this static cylinder.
Feeder 322 is provided with brake apparatus 334(and only schematically illustrates in Fig. 4), this brake apparatus is applied to controlled braking action on carried yarn.Total at embodiment described herein, brake apparatus 334 generally includes the truncated cone shape braking element 336 of hollow, and the truncated cone shape braking element of this hollow is setovered by drive unit 340, so that the inner surface neighbour of this braking element is butted on the delivery edge 328a of cylinder 328.In this embodiment, control loop (not shown in Fig. 4) accessory drive 340, to carry out adjustable brake effect according to the signal being received by tension pick-up 326, this tension pick-up is bearing in from the outstanding arm 342 of the motor field frame 344 of feeder together with brake apparatus 334 so that the tension force substantial constant of unwinding yarn remain in aspiration level.
Describe in this article 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, for example, in the embodiment describing before, in the time that the second feeder is storage reel, can different from the brake apparatus of those explanations and also can separate with feeder as the brake apparatus of yarn; For example, can use plate is brake and other traditional brake, is in brake at plate, and yarn is crushed on static plate and is connected between the movable platen of actuator.Tension pick-up also can separate with the second feeder, but not is attached in this second feeder.In addition, also can be in processing procedure, for example by the signal that is sent to feeder from weaving loom to the rotating speed of cylinder of the first feeder and proportionality constant that the spinning velocity of weaving loom is associated are regulated, these signals for example change proportionality constant according to the pattern of required acquisition.
Claims (6)
1. a yarn component feeding (10), comprise the first yarn feeder (14), described the first yarn feeder is provided with cylinder (16), on described cylinder, be wound with multiple yarn coils (Y) and drive and rotate by corresponding motor (20), described motor (20) is electrically connected on weaving loom (12), be used for rotating and the yarn being wound on described cylinder (16) is delivered to described weaving loom to the proportional speed of spinning velocity of described weaving loom, it is characterized in that, described yarn component feeding comprises the second feeder (22), described the second feeder is arranged to extract yarn and under the conveying action being regulated by control loop (24), described yarn is delivered to described the first feeder (14) from bobbin (18), described control loop is programmed the signal to receive according to the tension pick-up (26) from being operationally connected in described yarn, by from the tension stability of the yarn of described the second feeder unwinding on predetermined value.
2. yarn component feeding as claimed in claim 1 (10), is characterized in that, described tension pick-up (26) is arranged between described the first feeder (14) and described the second feeder (22).
3. yarn component feeding as claimed in claim 1 or 2, it is characterized in that, described the second feeder (122,222) is provided with cylinder (128,228), described cylinder is rotated by corresponding Motor Drive, and described control loop is programmed to regulate the rotating speed of the described cylinder (128,228) of described the second feeder (122,222), thus make described unwinding yarn tension force substantial constant remain on described predetermined value.
4. yarn component feeding as claimed in claim 3 (10), it is characterized in that, described the first feeder (114) and described the second feeder (122) are integrated in single housing (130), and the respective electrical motivation of described the first feeder and described the second feeder shares same control circuit.
5. yarn component feeding as claimed in claim 1 or 2, it is characterized in that, described the second feeder is provided with static cylinder (328) and brake apparatus (334), on described static cylinder, reel by the multiple yarn coils from described bobbin (18), and described brake apparatus is by described control loop control, in order to will through regulate braking action put on described unwinding yarn, thereby by the tension force substantial constant of described yarn remain on described predetermined value.
6. yarn component feeding as claimed in claim 5 (10), it is characterized in that, described brake apparatus (334) comprises the truncated cone shape braking element (336) of hollow, the truncated cone shape braking element of described hollow is setovered by the drive unit (340) that is operably connected to described control loop, and makes the inner surface of described braking element be resisted against the delivery edge (328a) of described static cylinder (328).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2013A000017 | 2013-01-10 | ||
| IT000017A ITTO20130017A1 (en) | 2013-01-10 | 2013-01-10 | YARN SUPPLY GROUP FOR TEXTILE MACHINES. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924371A true CN103924371A (en) | 2014-07-16 |
| CN103924371B CN103924371B (en) | 2017-04-26 |
Family
ID=47722457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310674379.XA Active CN103924371B (en) | 2013-01-10 | 2013-12-11 | Yarn-feeding assembly for textile machines |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140191074A1 (en) |
| EP (1) | EP2754742B1 (en) |
| CN (1) | CN103924371B (en) |
| IT (1) | ITTO20130017A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350930A (en) * | 2016-11-30 | 2017-01-25 | 广西大学 | Constant-tension yarn conveying device of knitting machine |
| CN110958986A (en) * | 2017-07-27 | 2020-04-03 | Btsr国际股份公司 | Method and system for feeding twisted braided metal cables or flat wires from a corresponding support frame without changing the structure or shape of the wires |
| CN112209179A (en) * | 2019-07-11 | 2021-01-12 | 爱吉尔电子股份公司 | Method for feeding a plurality of yarns under controlled tension to a textile machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900011448A1 (en) * | 2019-07-11 | 2021-01-11 | Lgl Electronics Spa | METHOD FOR FEEDING A PLURALITY OF YARNS TO A TEXTILE MACHINE BY MEANS OF THEIR POSITIVE YARN FEEDERS |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3567142A (en) * | 1966-05-17 | 1971-03-02 | Inst Textile De France | Device for adjusting the tension of yarn fed to a yarn comsuming machine |
| DE2245869A1 (en) * | 1972-09-19 | 1974-03-28 | Karl Bous | PROCESS AND DEVICE FOR DELIVERING AND TENSIONING YARNS WITH ADJUSTABLE, CONSTANT THREAD TENSION |
| DE3437251A1 (en) * | 1984-10-11 | 1986-04-24 | Gustav 7290 Freudenstadt Memminger | THREAD BRAKE, ESPECIALLY FOR TEXTILE MACHINES |
| DE19546404A1 (en) * | 1995-12-12 | 1997-06-19 | Terrot Strickmaschinen Gmbh | Thread delivery device |
| SE9700666D0 (en) * | 1997-02-24 | 1997-02-24 | Iro Ab | Fadenliefer device and fade brake |
| DE19712739A1 (en) | 1997-03-26 | 1998-10-01 | Sipra Patent Beteiligung | Yarn feeder esp. for circular knitting machine |
| DE19813351A1 (en) * | 1998-03-26 | 1999-09-30 | Memminger Iro Gmbh | Low inertia positive feeder for elastomer threads |
| ITMI20020770A1 (en) * | 2002-04-10 | 2003-10-10 | Tiziano Barea | DEVICE AND METHOD FOR FEEDING AN ELASTOMERIC WIRE TO A TEXTILE MACHINE IN ORDER TO HAVE A CONSTANT QUALITY MANUFACTURE IN EVERY |
| JP4015984B2 (en) * | 2003-10-17 | 2007-11-28 | 株式会社島精機製作所 | Yarn supply device for flat knitting machine |
| ITMI20060311A1 (en) * | 2006-02-21 | 2007-08-22 | Btsr Int Spa | PERFECT DEVICE FOR WIRE OR FILATIO SUPPLY TO A TEXTILE MACHINE AND METHOD TO IMPLEMENT THIS POWER SUPPLY |
| EP2169099A1 (en) * | 2008-09-25 | 2010-03-31 | L.G.L. Electronics S.p.A. | Negative yarn feeder with weft-braking device |
| EP2186932B1 (en) * | 2008-11-13 | 2012-09-19 | L.G.L. Electronics S.p.A. | Yarn-feeding apparatus for textile machines, with control of the feeding parameters |
| ITMI20100887A1 (en) * | 2010-05-18 | 2011-11-19 | Btsr Int Spa | METHOD AND DEVICE PERFECTED TO POWER A THREAD TO A OPERATING MACHINE WITH TENSION AND CONSTANT SPEED |
-
2013
- 2013-01-10 IT IT000017A patent/ITTO20130017A1/en unknown
- 2013-11-14 EP EP13005357.2A patent/EP2754742B1/en active Active
- 2013-12-11 CN CN201310674379.XA patent/CN103924371B/en active Active
-
2014
- 2014-01-10 US US14/152,059 patent/US20140191074A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350930A (en) * | 2016-11-30 | 2017-01-25 | 广西大学 | Constant-tension yarn conveying device of knitting machine |
| CN110958986A (en) * | 2017-07-27 | 2020-04-03 | Btsr国际股份公司 | Method and system for feeding twisted braided metal cables or flat wires from a corresponding support frame without changing the structure or shape of the wires |
| CN112209179A (en) * | 2019-07-11 | 2021-01-12 | 爱吉尔电子股份公司 | Method for feeding a plurality of yarns under controlled tension to a textile machine |
| CN112209179B (en) * | 2019-07-11 | 2023-08-22 | 爱吉尔电子股份公司 | Method for feeding a plurality of yarns under controlled tension to a textile machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2754742A1 (en) | 2014-07-16 |
| US20140191074A1 (en) | 2014-07-10 |
| ITTO20130017A1 (en) | 2014-07-11 |
| CN103924371B (en) | 2017-04-26 |
| EP2754742B1 (en) | 2015-12-09 |
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| GR01 | Patent grant |