CN1468993A - Weft supply device of loom equiped with device for separating loops on drum - Google Patents

Weft supply device of loom equiped with device for separating loops on drum Download PDF

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Publication number
CN1468993A
CN1468993A CNA031493475A CN03149347A CN1468993A CN 1468993 A CN1468993 A CN 1468993A CN A031493475 A CNA031493475 A CN A031493475A CN 03149347 A CN03149347 A CN 03149347A CN 1468993 A CN1468993 A CN 1468993A
Authority
CN
China
Prior art keywords
pipe
cylinder
weft feeder
loom
yarn
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.)
Pending
Application number
CNA031493475A
Other languages
Chinese (zh)
Inventor
P
P·乔瓦尼
C·罗萨里奥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LGL Electronics SpA
Original Assignee
LGL Electronics SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LGL Electronics SpA filed Critical LGL Electronics SpA
Publication of CN1468993A publication Critical patent/CN1468993A/en
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34Handling the weft between bulk storage and weft-inserting means
    • D03D47/36Measuring and cutting the weft
    • D03D47/361Drum-type weft feeding devices
    • D03D47/362Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34Handling the weft between bulk storage and weft-inserting means
    • D03D47/36Measuring and cutting the weft
    • D03D47/361Drum-type weft feeding devices
    • D03D47/362Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • D03D47/363Construction or control of the yarn retaining devices

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Abstract

A weft feeder for weaving machines, provided with a device for separating the loops on a loom cylinder, comprises a motor housing (11) and a loom cylinder (12) on which a swivel arm (13) operated by a motor winds a plurality of yarn loops (F) forming a weft reserve. The swivel arm (13) is shaped as a rectilinear tube (13) and obliquely projects from a hub (14) keyed to a hollow driving shaft (15) through which the thread (F) runs.

Description

Be equipped with the weft feeder that separates the loom of the device of coil on the cylinder
Technical field
The present invention relates to the weft feeder of loom, this weft feeder is equipped with the device of coil on the separation cylinder.
Background technology
As everyone knows, the weft feeder of loom comprises a stationary cylinder, and a pivoted arm by motor operation is wound on many coils on the cylinder, to form a weft yarn tube.For this purpose, driving shaft is a hollow, and yarn is walked within it.Yarn leaves by the exit that is positioned at a mid portion, passes the groove that extends along a bus that constitutes the frustum of a cone plate in described weft yarn coiling arm and the key entry axle, then, is wound up on the cylinder.According to the requirement of loom, coil unwinding from the cylinder, and be suitable for keeping the substantially invariable brake apparatus of yarn tension by one, be fed to loom.
In the rotation process, because pivoted arm rotates between cylinder and motor housing, so the latter can not pass through such as screw, bolt or suchlike rigid mount are connected to each other at its reel for yarn.Therefore,, use the crown of the frustum of a cone of two complementations for cylinder is fixed on the motor housing, wherein, the opposite polarity permanent magnet of each self aggregation.One of them crown is fixed on the front of motor housing, and another is fixed on the cylinder.By the towing cylinder, support its corresponding magnetic crown, another magnetic crown is set near motor housing, like this, these parts reach and are fixedly coupled, and also form a gap equally between them, when this gap is wound up on the cylinder at yarn, for pivoted arm to pass through be necessary.
Some small-sized weft feeder (for example, the diameter of a circle of the outlet institute tracking of weft yarn coiling arm is under 200 millimeters) is equipped with a transmission system, and it is suitable for the end from cylinder to pushing up moving coil step by step in the process of unwinding, thus, make coil disconnected from each other.This system consists essentially of one and is suitable for the circulate spool of the bar that rises of vertical slit by the cylinder correspondence.All bars are driven by the inclination bearing shell of keying in driving shaft.Yet the oscillating motion of this device influences the motion of cylinder, and causes the latter to depart from the position of its angle around the shell of motor.Therefore, quoted the magnet of neodymium base, for same size, the magnetic force of neodymium base magnet is three to five times of magnetic force of the magnet of traditional ferrite base.
In large-scale weft feeder, for example, diameter is more than 250 millimeters, acts on that inertia force must reduce on the weft yarn coiling arm.Yet, at this moment, any collision or the friction that cause because of centrifugal force or vibration when preventing that arm from rotating between crown, arm must be a rigidity.Therefore, such arm is made of aluminum, but such measure stops such weft feeder that the device of separate winding is provided.In fact, be used for cylinder is securely fixed in neodymium base magnet on the motor housing in this sampling device, can not be used for them will produce in the high faradic situation, thus at aluminium matter arm, cause arm to be heated to up to more than 60 ℃, this heating is harmful to yarn.
Summary of the invention
Therefore, a main purpose of the present invention is to eliminate this shortcoming in the known devices by the weft feeder that provides a kind of loom to use, this weft feeder is equipped with the device that separates the coil on the cylinder, and wherein, cylinder is securely fixed on the motor housing (irrelevant with its size).For large-scale weft feeder (for example, diameter is more than 250 millimeters), it is desirable especially that this purpose seems.
Another object of the present invention provides a kind of cost weft feeder low and easy to manufacture, and its equipment by means of common use in the present technique field can be made.
The above-mentioned purpose and the advantage that will become hereinafter and understand more can be achieved by the Weft feeding device with feature as claimed in claim 1, but independently claims are also explained other preferable feature.
Brief description of drawings
The present invention is with reference to preferred but be not that unique embodiment does comparatively detailed description, and this embodiment gives to illustrate by means of the non-limiting instance in the accompanying drawing, wherein:
On Fig. 1 according to the stereogram of a weft feeder of the present invention;
Fig. 2 is the local longitdinal cross-section diagram of the weft feeder of Fig. 1;
Fig. 3 is the front view of the motor housing that has cursor of the weft feeder of Fig. 1.
The specific embodiment
With reference to above-mentioned all accompanying drawings, a weft feeder 10 comprises that the tubulose pivoted arm 13 of a motor housing 11 and a cylinder 12, one linears is wound on many yarn coils on the cylinder, to form a weft yarn tube.Cursor 13 is oblique outstanding from a hub 14 that is typed in the driving shaft 15.Driving shaft 15 be hollow and yarn F walk within it.Pipe 13 is to be made through injection moulding by composite, and one end thereof engages with the oblique groove 16 of hub 14.Groove terminates in the opening 17 of the mid portion that is positioned at axle 15.Therefore, yarn is by driving shaft 15, and opening 17 is walked in pipe 13, and comes out by the latter's free end 18, and is wound onto on the cylinder 12.In order to reduce from managing the friction of the yarn that comes out in 13, a ceramic sleeve 19 that has beveled edge engages with the free end 18 of pipe 13.Similarly, in order to reduce the friction from the yarn of driving shaft 15, another ceramic sleeve 50 engages with opening 17.For balance driving shaft 15 in rotation, hub 14 upper supports are with respect to the puppet pipe (balance pipe) 47 of pipe 13 symmetric arrangement.The weight of pseudo-pipe 47, shape is identical with pipe 13 with inertia.According to the requirement of loom (not shown), coil unwinding from the cylinder 12, and be fed to loom by brake apparatus (also not shown), this brake apparatus is suitable for keeping the tension force of yarn F to be essentially constant.
Connection between cylinder 12 and the motor housing 11 must allow arm 13 freely to rotate betwixt.Therefore, such system comprises a plurality of first neodymium base permanent magnets 20 that are fixed on the motor housing 11, and be fixed on the cylinder 12, be the second neodymium base permanent magnet 21 of reversed polarity with respect to first magnet 20.First magnet 20 be contained in corresponding first 24, and crown is fixed on the motor housing 11 coaxially along being positioned at a circumferential slot 23 on the concave surface 24 of the crown 25 of frustum of a cone roughly.Second permanent magnet 21 is contained in corresponding second 26, and this is connected to by screw 29 in the supporting 27 on the base 28 that is fixed on cylinder 12, and towards first magnet.Therefore, 21 formation one of second permanent magnet and the inner surface of crown 25 frusto-conical surface 30 coupling, evagination.Supporting 27 is bearing on the mid portion 29 of driving shaft 15 pivotly by means of bearing 45.Weft feeder 10 is provided with a device that is used for being separated in the coil on the cylinder 12.For this purpose, cylinder comprises six parts 33, and each part is provided with four cannelures 34, is suitable for step by step rising circularly by this groove from each bar 35 of the end to the top moving coil of cylinder 12.By means of the tongue 46 that engages with the corresponding radial slot 135 that is formed on substrate 28 fronts, each part 33 is fixed in the substrate 28.Tongue 46 is locked in the predetermined radial position by screw 36, so that the diameter of cylinder 12 is regulated.
Bar 35 is assembled for one group by four bars, thus, forms such as 37 six such coxcombs, and they are bearing in one and are fixed in the supporting 38 of the star on the flange 48.Flange is bearing on the sleeve 40 of inclination pivotly by bearing 39.Inclination sleeve 40 is typed into the end 41 of driving shaft 15.Each coxcomb 37 is fixed a spoke 42, and spoke engages with each radial slot 43 that forms previously along the beam 44 of star supporting 38.Each spoke is locked in its radial position by screw 49, and like this, the diameter of the reel of coxcomb can be adjusted with respect to the diameter of cylinder 12.Driving shaft 15 is applied to the rotation on the inclination sleeve 40, and cause supporting 38 swings and do not rotate, and, make and respectively organize bar 35 groove 34 by separately and rise circularly.
Have found that in practice by a loom weft feeder that is equipped with the device that is used for separating the coil on the cylinder is provided, the present invention has realized above-mentioned purpose, wherein, cylinder is securely fixed on the shell of motor, and irrelevant with the size of weft feeder.Particularly, the pipe of being made by injection moulding by composite 13 has high mechanics rigidity and low electric conductivity, and it avoids producing induced-current.Therefore, can use neodymium base magnet, and the device that is used for the separation yarn coil also can be used in large-scale weft feeder, for example, diameter is more than 250 millimeters.
The advantage that also has according to device of the present invention is, because the material that is made by injection moulding can produce on continuous production line on a large scale, so, easy to manufacture, with low cost.
The present invention can carry out the variation of variety of way in the scope of its invention theory, and its all details can usually be substituted by other technical unit that is equal to.
In practice, as long as compatible with concrete application, material then, shape and size all can be different, decide on specific requirement.

Claims (6)

1. one is used for weft feeder loom, that include the device that separates the coil on the loom cylinder, it comprises a motor housing (11) and a loom cylinder (12), cursor (13) by a motor operation is wound on many yarn coils (F) on the cylinder, to form a weft yarn tube, it is characterized in that, the shape of described cursor (13) is the pipe (13) of a straight line, and it is oblique outstanding from the hub (14) of keying in hollow actuating shaft (15), and yarn is by this pipe walking.
2. weft feeder as claimed in claim 1 is characterized in that, pipe (13) is made through injection moulding by composite.
3. weft feeder as claimed in claim 1 or 2 is characterized in that, one of both ends of pipe (13) engage with the inclined groove (16) of hub (14), and groove ends at yarn (F) from the opening (17) of spool (15) of wherein coming out.
4. as any one described weft feeder in the above-mentioned claim, it is characterized in that, also comprise a ceramic sleeve (19) that has sloping edge and engage with the free end (18) of pipe (13).
5. as any one described weft feeder in the above-mentioned claim, it is characterized in that, comprise that also one has the edge of inclination and the ceramic sleeve (50) that engages with opening (17).
6. any one described weft feeder as in the above-mentioned claim is characterized in that, comprises that also one is fixed to that hub (14) is gone up and with respect to the balance pipe (47) of pipe (13) symmetric arrangement, and weight, shape and the inertia of balance pipe (47) is all with to manage (13) identical.
CNA031493475A 2002-06-11 2003-06-11 Weft supply device of loom equiped with device for separating loops on drum Pending CN1468993A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002TO000490A ITTO20020490A1 (en) 2002-06-11 2002-06-11 ,, WEFT FEEDER FOR TEXTILE MACHINES WITH DEVICE FOR SEPARATION OF THE COILS ON THE DRUM ,,
ITT02002A000490 2002-06-11

Publications (1)

Publication Number Publication Date
CN1468993A true CN1468993A (en) 2004-01-21

Family

ID=27639151

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA031493475A Pending CN1468993A (en) 2002-06-11 2003-06-11 Weft supply device of loom equiped with device for separating loops on drum

Country Status (4)

Country Link
EP (1) EP1371594B1 (en)
CN (1) CN1468993A (en)
DE (1) DE60311354T2 (en)
IT (1) ITTO20020490A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100567116C (en) * 2004-04-15 2009-12-09 Iro有限公司 Yarn feeder
CN1891879B (en) * 2005-07-07 2010-07-07 爱吉尔电子股份公司 Yarn-recovering device for textile machines
CN102433661A (en) * 2010-09-29 2012-05-02 吴江市吴中布业有限公司 Dual-station yarn feeding device
CN105256447A (en) * 2015-10-31 2016-01-20 计剑华 Weft accumulator and weft accumulation method thereof
CN107208329A (en) * 2015-01-26 2017-09-26 必佳乐公司 Line separating mechanism for Supply weft unit device
CN110678592A (en) * 2017-05-30 2020-01-10 必佳乐公司 Weft feeder device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH538415A (en) * 1971-03-04 1973-06-30 Sulzer Ag Thread storage device for textile machines
US4476904A (en) * 1981-12-26 1984-10-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for measuring the length of a weft
IT1246421B (en) * 1990-08-03 1994-11-18 Roy Electrotex Spa WEFT FEEDER FOR WEAVING FRAMES WITH ADJUSTABLE SECTION WINDING GROUP
IT1280434B1 (en) * 1995-07-18 1998-01-20 Lgl Electronics Spa IMPROVED ELECTRO-PNEUMATIC DEVICE FOR AUTOMATIC THREADING OF WEFT FEEDER AND WEFT FEEDER
US6395210B1 (en) * 1999-05-12 2002-05-28 A&P Technology, Inc. Pultrusion method and device for forming composites using pre-consolidated braids

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100567116C (en) * 2004-04-15 2009-12-09 Iro有限公司 Yarn feeder
CN1891879B (en) * 2005-07-07 2010-07-07 爱吉尔电子股份公司 Yarn-recovering device for textile machines
CN102433661A (en) * 2010-09-29 2012-05-02 吴江市吴中布业有限公司 Dual-station yarn feeding device
CN107208329A (en) * 2015-01-26 2017-09-26 必佳乐公司 Line separating mechanism for Supply weft unit device
CN107208329B (en) * 2015-01-26 2018-11-13 必佳乐公司 Line separating mechanism for Supply weft unit device
CN105256447A (en) * 2015-10-31 2016-01-20 计剑华 Weft accumulator and weft accumulation method thereof
CN110678592A (en) * 2017-05-30 2020-01-10 必佳乐公司 Weft feeder device

Also Published As

Publication number Publication date
DE60311354T2 (en) 2007-11-29
DE60311354D1 (en) 2007-03-15
ITTO20020490A0 (en) 2002-06-11
ITTO20020490A1 (en) 2003-12-11
EP1371594B1 (en) 2007-01-24
EP1371594A1 (en) 2003-12-17

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication